Absorbent articles with channels and/or pockets

Abstract
The present disclosure is directed, in part, to an absorbent article having a front waist edge, a rear waist edge longitudinally opposing the front waist edge, a longitudinal axis extending from a midpoint of the front waist edge to a midpoint of the rear waist edge, a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed at least partially intermediate the topsheet and the backsheet. The absorbent core having superabsorbent polymers and a channel network substantially free of the superabsorbent polymers. The channel network having a perimeter channel, a first longitudinal channel inboard of the perimeter channel, a second longitudinal channel inboard of the perimeter channel, and one or more connecting lateral channels. The one or more connecting lateral channels connect one of the first longitudinal channel to the second longitudinal channel or the perimeter channel to the perimeter channel.
Description
FIELD

The present disclosure is generally directed to absorbent articles for personal hygiene such as baby diapers, training pants, adult incontinence products, and/or sanitary napkins. The absorbent articles may each comprise channels and/or pockets.


BACKGROUND

Absorbent articles for personal hygiene, such as disposable diapers for infants, training pants for toddlers, adult incontinence undergarments, and/or sanitary napkins are designed to absorb and contain body exudates, in particular large quantities of urine or menses. These absorbent articles comprise several layers providing different functions, for example, a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet, among other layers.


The function of the absorbent core is to absorb and retain the exudates for a prolonged amount of time, for example, overnight for a diaper, minimize re-wet to keep the wearer dry, and avoid soiling of clothes or bed sheets. The majority of currently marketed absorbent articles comprise as absorbent material which is a blend of comminuted wood pulp with superabsorbent polymers (SAP) in particulate form, also called absorbent gelling materials (AGM). Absorbent articles having a core consisting essentially of SAP as absorbent material (so called “airfelt-free” cores) have also been proposed but are less common than traditional mixed cores.


Some absorbent articles may typically comprise leg cuffs which provide improved containment of liquids and other body exudates. Leg cuffs may also be referred to as leg bands, side flaps, barrier cuffs, or elastic cuffs. Usually, each leg cuff comprises one or more elastic strings or elements comprised in the chassis of the diaper, for example, between the topsheet and backsheet in the area of the leg openings to provide an effective seal while the absorbent article is in use. These elasticized elements which are substantially planar with the chassis of the absorbent article will be referred to herein as gasketing cuffs. It is also usual for the leg cuffs to comprise raised elasticized flaps, herein referred to as barrier leg cuffs, which improve the containment of fluid in the leg-torso joint regions.


Absorbent articles generally have a high absorbent capacity and the absorbent core may expand several times its weight and volume. These increases may cause the absorbent articles to sag in the crotch region as they become saturated with liquid, which may cause the barrier leg cuffs to partially lose contact with the wearer's skin. This may lead to a loss of functionality of the barrier leg cuffs, with the increased possibly of leakage.


Further, traditional Adult Incontinence products are thick, bulky, and noticeable to the consumer while wearing. Additionally, many Adult Incontinence products are inherently stiff due to their material composition and geometry. Developing thin and flexible products presents the unique challenge to maintain, or increase, the product's structural properties during use to ensure the product is shape stable. The term “shape stable” refers to the product's ability to maintain or recover its shape during wear, and maximize area coverage and ultimately protection from leakage. This challenge is unique in that this structural requirement breaks the traditional paradigm faced today for maintaining shape stability, throughout use, in other absorbent technologies. Traditional technologies start with significantly higher dry/unused structural properties compared to its wet/used properties, due to the decay of integrity during use. As a result of this degradation, the higher properties at a dry/unused state are used a compensation mechanism to deliver the shape stability required for protection throughout product use, resulting in a stiff product.


Although various solutions to this problem have been proposed, the field can benefit from additional channel and/or pocket configurations that improved leakage prevention in absorbent articles.


SUMMARY

In an embodiment, the present disclosure is directed, in part, to an absorbent article having a front waist edge, a rear waist edge longitudinally opposing the front waist edge, a longitudinal axis extending from a midpoint of the front waist edge to a midpoint of the rear waist edge, a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed at least partially intermediate the topsheet and the backsheet. The absorbent core having superabsorbent polymers and a channel network substantially free of the superabsorbent polymers. The channel network having a perimeter channel, a first longitudinal channel inboard of the perimeter channel, a second longitudinal channel inboard of the perimeter channel, and one or more connecting lateral channels. The one or more connecting lateral channels connect one of the first longitudinal channel to the second longitudinal channel or the perimeter channel to the perimeter channel.





BRIEF DESCRIPTION OF THE DRAWINGS

The above-mentioned and other features and advantages of the present disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of non-limiting embodiments of the disclosure taken in conjunction with the accompanying drawings, wherein:



FIG. 1 is a top view of an absorbent article with some layers partially removed in accordance with a non-limiting embodiment of the present disclosure;



FIG. 2 is a cross-sectional view of the absorbent article taken about line 2-2 of FIG. 1 in accordance with a non-limiting embodiment of the present disclosure;



FIG. 3 is a view of the absorbent article of FIG. 2 where the absorbent article has been loaded with fluid in accordance with a non-limiting embodiment of the present disclosure;



FIG. 4 is a top view of another absorbent article with some layers partially removed in accordance with a non-limiting embodiment of the present disclosure;



FIG. 5 is a cross-sectional view of the absorbent article taken about line 5-5 of FIG. 4 in accordance with a non-limiting embodiment of the present disclosure;



FIG. 6 is a top view of an absorbent core of the absorbent article of FIG. 4 with some layers partially removed in accordance with a non-limiting embodiment of the present disclosure;



FIG. 7 is a cross-sectional view of the absorbent core taken about line 7-7 of FIG. 6 in accordance with a non-limiting embodiment of the present disclosure;



FIG. 8 is a cross-sectional view of the absorbent core taken about line 8-8 of FIG. 6 in accordance with a non-limiting embodiment of the present disclosure;



FIG. 9 is a top view of an absorbent core for an absorbent article in accordance with a non-limiting embodiment of the present disclosure;



FIG. 10 is a profile of the sum of the lateral widths of two channels of FIG. 9 graphed against the longitudinal length of the channels within the enclosed area “EA” in accordance with a non-limiting embodiment of the present disclosure;



FIG. 11 is a profile of the sum of the lateral widths of portions of the channels of FIG. 1 graphed against the longitudinal length of the channels between lines A and B of FIG. 1 in accordance with a non-limiting embodiment of the present disclosure;



FIG. 12 is a top view of an absorbent core for an absorbent article in accordance with a non-limiting embodiment of the present disclosure;



FIG. 13 is a profile of the sum of the lateral widths of portions of the channels and the pocket of FIG. 12 graphed against the longitudinal length of the channels between lines C and D of FIG. 12 in accordance with a non-limiting embodiment of the present disclosure;



FIGS. 14-21 are top views of absorbent cores for absorbent articles in accordance with various non-limiting embodiments of the present disclosure;



FIG. 22 is a top view of an absorbent article that is a sanitary napkin with some of the layers cut away in accordance with a non-limiting embodiment of the present disclosure; and



FIG. 23 is a top view of an absorbent core for absorbent articles in accordance with a non-limiting embodiment of the present disclosure.





DETAILED DESCRIPTION

Various non-limiting embodiments of the present disclosure will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the absorbent articles with channel configurations and methods for making the same disclosed herein. One or more examples of these non-limiting embodiments are illustrated in the accompanying drawings. Those of ordinary skill in the art will understand that the absorbent articles with channel configurations and methods for making the same described herein and illustrated in the accompanying drawings are non-limiting example embodiments and that the scope of the various non-limiting embodiments of the present disclosure are defined solely by the claims. The features illustrated or described in connection with one non-limiting embodiment may be combined with the features of other non-limiting embodiments. Such modifications and variations are intended to be included within the scope of the present disclosure.


Introduction


As used herein, the term “absorbent article” refers to disposable devices such as infant, child, or adult diapers, training pants, sanitary napkins, and the like which are placed against or in proximity to the body of the wearer to absorb and contain the various exudates discharged from the body. Typically, these articles comprise a topsheet, backsheet, an absorbent core, optionally an acquisition system (which may be comprised of one or several layers), and typically other components, with the absorbent core normally placed at least partially between the backsheet and the acquisition system or between the topsheet and the backsheet. The absorbent articles of the present disclosure will be further illustrated in the below description and in the Figures in the form of a taped diaper. Nothing in this description should be, however, considered limiting the scope of the claims. As such the present disclosure applies to any suitable form of absorbent articles (e.g., training pants, adult incontinence products, sanitary napkins).


A “nonwoven web” as used herein means a manufactured sheet, web, or batt of directionally or randomly orientated fibers, bonded by friction, and/or cohesion, and/or adhesion, excluding paper and products which are woven, knitted, tufted, stitch-bonded incorporating binding yarns or filaments, or felted by wet-milling, whether or not additionally needled. The fibers may be of natural or man-made origin and may be staple or continuous filaments or be formed in situ. Commercially available fibers may have diameters ranging from less than about 0.001 mm to more than about 0.2 mm and may come in several different forms such as short fibers (known as staple, or chopped), continuous single fibers (filaments or monofilaments), untwisted bundles of continuous filaments (tow), and twisted bundles of continuous filaments (yam). Nonwoven webs can be formed by many processes such as meltblowing, spunbonding, solvent spinning, electrospinning, carding, and airlaying. The basis weight of nonwoven webs is usually expressed in grams per square meter (g/m2 or gsm).


The term “joined” or “bonded” or “attached”, as used herein, encompasses configurations whereby an element is directly secured to another element by affixing the element directly to the other element, and configurations whereby an element is indirectly secured to another element by affixing the element to intermediate member(s) which in turn are affixed to the other element.


General Description of the Absorbent Article


An example absorbent article according to the present disclosure in the form of an infant diaper 20 is represented in FIGS. 1-3. FIG. 1 is a plan view of the example diaper 20, in a flat-out state, with portions of the structure being cut-away to more clearly show the construction of the diaper 20. This diaper 20 is shown for illustration purpose only as the present disclosure may be used for making a wide variety of diapers or other absorbent articles.


The absorbent article may comprise a liquid permeable topsheet 24, a liquid impermeable backsheet 25, an absorbent core 28 positioned at least partially intermediate the topsheet 24 and the backsheet 25, and barrier leg cuffs 34. The absorbent article may also comprise an acquisition-distribution system (“ADS”) 50, which in the example represented comprises a distribution layer 54 and an acquisition layer 52, which will be further detailed below. The absorbent article may also comprise elasticized gasketing cuffs 32 joined to the chassis of the absorbent article, typically via the topsheet and/or backsheet, and substantially planar with the chassis of the diaper.


The Figures also show typical taped diaper components such as a fastening system comprising adhesive tabs 42 attached towards the rear edge of the article and cooperating with a landing zone 44 on the front of the article. The absorbent article may also comprise other typical elements, which are not represented, such as a rear elastic waist feature, a front elastic waist feature, transverse barrier cuff(s), and/or a lotion application, for example.


The absorbent article 20 comprises a front waist edge 10, a rear waist edge 12 longitudinally opposing the front waist edge 10, a first side edge 3, and a second side edge 4 laterally opposing the first side edge 3. The front waist edge 10 is the edge of the article which is intended to be placed towards the front of the user when worn, and the rear waist edge 12 is the opposite edge. The absorbent article may have a longitudinal axis 80 extending from the lateral midpoint of the front waist edge 10 to a lateral midpoint of the rear waist edge 12 of the article and dividing the article in two substantially symmetrical halves relative to the longitudinal axis 80, with article placed flat and viewed from above as in FIG. 1. The absorbent article may also have a lateral axis 90 extending from the longitudinal midpoint of the first side edge 3 to the longitudinal midpoint of the second side edge 4. The length L of the article may be measured along the longitudinal axis 80 from the front waist edge 10 to the rear waist edge 12. The width of the article may be measured along the lateral axis 90 from the first side edge 3 to the second side edge 4. The article may comprise a crotch point C defined herein as the point placed on the longitudinal axis at a distance of two fifth (⅖) of L starting from the front edge 10 of the article 20. The article may comprise a front waist region 5, a rear waist region 6, and a crotch region 7. The front waist region, the rear waist region, and the crotch region each define ⅓ of the longitudinal length of the absorbent article.


The topsheet 24, the backsheet 25, the absorbent core 28, and the other article components may be assembled in a variety of configurations, in particular by gluing or heat embossing, for example. Example diaper configurations are described generally in U.S. Pat. Nos. 3,860,003, 5,221,274, 5,554,145, 5,569,234, 5,580,411, and 6,004,306. The absorbent article may be thin. The caliper at the crotch point C or in the crotch region 7 of the article may be, for example, from 4.0 mm to 12.0 mm or alternatively from 6.0 mm to 10.0 mm.


The absorbent core 28 may comprise an absorbent material comprising at least 80% by weight, at least 90% by weight, at least 95% by weight, or at least 99% by weight of superabsorbent polymers and a core wrap enclosing the superabsorbent polymers. The core wrap may typically comprise two materials, substrates, or nonwoven materials 16 and 16′ for the top side and bottom side of the core. The core may comprises one or more channels, represented in FIG. 1 as the four channels 26, 26′ and 27, 27′.


These and other components of the articles will now be discussed in more details.


Topsheet


The topsheet 24 is the part of the absorbent article that is directly in contact with the wearer's skin. The topsheet 24 can be joined to the backsheet 25, the core 28 and/or any other layers as is known to those of skill in the art. Usually, the topsheet 24 and the backsheet 25 are joined directly to each other in some locations (e.g., on or close to the periphery of the article) and are indirectly joined together in other locations by directly joining them to one or more other elements of the article 20.


The topsheet 24 may be compliant, soft-feeling, and non-irritating to the wearer's skin. Further, at least a portion of the topsheet 24 may be liquid permeable, permitting liquids to readily penetrate through its thickness. A suitable topsheet may be manufactured from a wide range of materials, such as porous foams, reticulated foams, apertured plastic films, or woven or nonwoven materials of natural fibers (e.g., wood or cotton fibers), synthetic fibers or filaments (e.g., polyester or polypropylene or bicomponent PE/PP fibers or mixtures thereof), or a combination of natural and synthetic fibers. If the topsheet 24 includes fibers, the fibers may be spunbond, carded, wet-laid, meltblown, hydroentangled, or otherwise processed as is known in the art, in particular spunbond PP nonwoven. A suitable topsheet comprising a web of staple-length polypropylene fibers is manufactured by Veratec, Inc., a Division of International Paper Company, of Walpole, Mass. under the designation P-8.


Suitable formed film topsheets are also described in U.S. Pat. Nos. 3,929,135, 4,324,246, 4,342,314, 4,463,045, and 5,006,394. Other suitable topsheets 30 may be made in accordance with U.S. Pat. Nos. 4,609,518 and 4,629,643 issued to Curro et al. Such formed films are available from The Procter & Gamble Company of Cincinnati, Ohio as “DRI-WEAVE” and from Tredegar Corporation, based in Richmond, Va., as “CLIFF-T”.


Any portion of the topsheet 24 may be coated with a lotion as is known in the art. Examples of suitable lotions include those described in U.S. Pat. Nos. 5,607,760, 5,609,587, 5,643,588, 5,968,025, and 6,716,441. The topsheet 24 may also include or be treated with antibacterial agents, some examples of which are disclosed in PCT Publication WO95/24173. Further, the topsheet 24, the backsheet 25 or any portion of the topsheet or backsheet may be embossed and/or matte finished to provide a more cloth like appearance.


The topsheet 24 may comprise one or more apertures to ease penetration of exudates therethrough, such as urine and/or feces (solid, semi-solid, or liquid). The size of at least the primary aperture is important in achieving the desired waste encapsulation performance. If the primary aperture is too small, the waste may not pass through the aperture, either due to poor alignment of the waste source and the aperture location or due to fecal masses having a diameter greater than the aperture. If the aperture is too large, the area of skin that may be contaminated by “rewet” from the article is increased. Typically, the total area of the apertures at the surface of a diaper may have an area of between about 10 cm2 and about 50 cm2 or between about 15 cm2 and 35 cm2. Examples of apertured topsheets are disclosed in U.S. Pat. No. 6,632,504, assigned to BBA NONWOVENS SIMPSONVILLE. WO2011/163582 also discloses suitable colored topsheet having a basis weight of from 12 to 18 gsm and comprising a plurality of bonded points. Each of the bonded points has a surface area of from 2 mm2 to 5 mm2 and the cumulated surface area of the plurality of bonded points is from 10 to 25% of the total surface area of the topsheet.


Typical diaper topsheets have a basis weight of from about 10 to about 21 gsm or from about 12 to about 18 gsm, but other basis weights are within the scope of the present disclosure.


Backsheet


The backsheet 25 is generally that portion of the article 20 positioned adjacent the garment-facing surface of the absorbent core 28 and which prevents, or at least inhibits, the exudates absorbed and contained therein from soiling articles such as bedsheets and undergarments. The backsheet 25 is typically impermeable, or at least substantially impermeable, to liquids (e.g., urine). The backsheet may, for example, be or comprise a thin plastic film such as a thermoplastic film having a thickness of about 0.012 mm to about 0.051 mm Example backsheet films include those manufactured by Tredegar Corporation, based in Richmond, Va., and sold under the trade name CPC2 film. Other suitable backsheet materials may include breathable materials which permit vapors to escape from the diaper 20 while still preventing, or at least inhibiting, exudates from passing through the backsheet 25. Example breathable materials may include materials such as woven webs, nonwoven webs, composite materials such as film-coated nonwoven webs, microporous films such as manufactured by Mitsui Toatsu Co., of Japan under the designation ESPOIR NO and by Tredegar Corporation of Richmond, Va., and sold under the designation EXAIRE, and monolithic films such as manufactured by Clopay Corporation, Cincinnati, Ohio under the name HYTREL blend P18-3097.


The backsheet 25 may be joined to the topsheet 24, the absorbent core 28, and/or any other element of the diaper 20 by any attachment methods known to those of skill in the art. Suitable attachment methods are described above with respect to methods for joining the topsheet 24 to other elements of the article 20. For example, the attachment methods may include using a uniform continuous layer of adhesive, a patterned layer of adhesive, or an array of separate lines, spirals, or spots of adhesive. Suitable attachment methods comprising an open pattern network of filaments of adhesive as disclosed in U.S. Pat. No. 4,573,986. Other suitable attachment methods include using several lines of adhesive filaments which are swirled into a spiral pattern, as is illustrated by the apparatus and methods shown in U.S. Pat. Nos. 3,911,173, 4,785,996, and 4,842,666. Adhesives which have been found to be satisfactory are manufactured by H. B. Fuller Company of St. Paul, Minn. and marketed as HL-1620 and HL 1358-XZP. Alternatively, the attachment methods may comprise using heat bonds, pressure bonds, ultrasonic bonds, dynamic mechanical bonds, or any other suitable attachment methods or combinations of these attachment methods as are known to those of skill in the art.


Absorbent Core


As used herein, the term “absorbent core” refers to the individual component of the article having the most absorbent capacity and comprising an absorbent material and a core wrap enclosing the absorbent material. The term “absorbent core” does not include the acquisition-distribution system or layer or any other component of the article which is not either integral part of the core wrap or placed within the core wrap. The core may comprise, consist essentially of, or consist of, a core wrap, absorbent material as defined below, and glue enclosed within the core wrap.


The absorbent core 28 of the present disclosure may comprise an absorbent material with a high amount of superabsorbent polymers (herein abbreviated as “SAP”) enclosed within a core wrap. The SAP content may represent 70%-100% or at least 70%, 75%, 80%, 85%, 90%, 95%, 99%, or 100% by weight of the absorbent material contained in the core wrap. The core wrap is not considered as absorbent material for the purpose of assessing the percentage of SAP in the absorbent core.


By “absorbent material” it is meant a material which has some absorbency property or liquid retaining properties, such as SAP, cellulosic fibers as well as synthetic fibers. Typically, glues used in making absorbent cores have no absorbency properties and are not considered as absorbent material. The SAP content may be higher than 80%, for example at least 85%, at least 90%, at least 95%, at least 99%, and even up to and including 100% of the weight of the absorbent material contained within the core wrap. This provides a relatively thin core compared to conventional core typically comprising between 40-60% SAP and high content of cellulose fibers. The absorbent material may in particular comprises less than 15% or less than 10% weight percent of natural or synthetic fibers, less than 5% weight percent, less than 3% weight percent, less than 2% weight percent, less than 1% weight percent, or may even be substantially free of natural and/or synthetic fibers. The absorbent material may advantageously comprise little or no airfelt (cellulose) fibers, in particular the absorbent core may comprise less than 15%, 10%, 5%, 3%, 2%, 1% airfelt (cellulose) fibers by weight of the absorbent core, or may even be substantially free of cellulose fibers.


The example absorbent core 28 of the absorbent article of FIGS. 4-5 is shown in isolation in FIGS. 6-8. The absorbent core may comprises a front side 280, a rear side 282, and two longitudinal sides 284, 286 joining the front side 280 and the rear side 282. The absorbent core may also comprise a generally planar top side and a generally planar bottom side. The front side 280 of the core is the side of the core intended to be placed towards the front waist edge 10 of the absorbent article. The core 28 may have a longitudinal axis 80′ corresponding substantially to the longitudinal axis 80 of the article, as seen from the top in a planar view as in FIG. 1. In an embodiment, the absorbent material may be distributed in higher amount towards the front side than towards the rear side as more absorbency may be required at the front in particular articles. In an embodiment, the front and rear sides of the core may be shorter than the longitudinal sides of the core. The core wrap may be formed by two nonwoven materials, substrates, laminates, or other materials, 16, 16′ which may be at least partially sealed along the sides of the absorbent core. The core wrap may be at least partially sealed along its front side 280, rear side 282, and two longitudinal sides 284, 286 so that substantially no absorbent material leaks out of the absorbent core wrap. The first material, substrate, or nonwoven 16 may at least partially surround the second material, substrate, or nonwoven 16′ to form the core wrap, as illustrated in FIG. 7. The first material 16 may surround a portion of the second material 16′ proximate to the first and second side edges 284 and 286.


The absorbent core of the present disclosure may comprise adhesive, for example, to help immobilizing the SAP within the core wrap and/or to ensure integrity of the core wrap, in particular when the core wrap is made of two or more substrates. The core wrap may extend to a larger area than strictly needed for containing the absorbent material within.


Cores comprising relatively high amount of SAP with various core designs are disclosed in U.S. Pat. No. 5,599,335 (Goldman), EP 1,447,066 (Busam), WO 95/11652 (Tanzer), U.S. Pat. Publ. No. 2008/0312622A1 (Hundorf), and WO 2012/052172 (Van Malderen).


The absorbent material may be a continuous layer present within the core wrap. In other embodiments, the absorbent material may be comprised of individual pockets or stripes of absorbent material enclosed within the core wrap. In the first case, the absorbent material may be, for example, obtained by the application of a single continuous layer of absorbent material. The continuous layer of absorbent material, in particular of SAP, may also be obtained by combining two absorbent layers having discontinuous absorbent material application pattern, wherein the resulting layer is substantially continuously distributed across the absorbent particulate polymer material area, as disclosed in U.S. Pat. Appl. Pub. No. 2008/0312622A1 (Hundorf), for example. The absorbent core 28 may comprise a first absorbent layer and a second absorbent layer. The first absorbent layer may comprise the first material 16 and a first layer 61 of absorbent material, which may be 100% or less of SAP. The second absorbent layer may comprise the second material 16′ and a second layer 62 of absorbent material, which may also be 100% or less of SAP. The absorbent core 28 may also comprise a fibrous thermoplastic adhesive material 51 at least partially bonding each layer of absorbent material 61, 62 to its respective material 16 or 16′. This is illustrated in FIGS. 7-8, as an example, where the first and second SAP layers have been applied as transversal stripes or “land areas” having the same width as the desired absorbent material deposition area on their respective substrate before being combined. The stripes may comprise different amount of absorbent material (SAP) to provide a profiled basis weight along the longitudinal axis of the core 80. The first material 16 and the second material 16′ may form the core wrap.


The fibrous thermoplastic adhesive material 51 may be at least partially in contact with the absorbent material 61, 62 in the land areas and at least partially in contact with the materials 16 and 16′ in the junction areas. This imparts an essentially three-dimensional structure to the fibrous layer of thermoplastic adhesive material 51, which in itself is essentially a two-dimensional structure of relatively small thickness, as compared to the dimension in length and width directions. Thereby, the fibrous thermoplastic adhesive material may provide cavities to cover the absorbent material in the land area, and thereby immobilizes this absorbent material, which may be 100% or less of SAP.


The thermoplastic adhesive material 51 may comprise, in its entirety, a single thermoplastic polymer or a blend of thermoplastic polymers, having a softening point, as determined by the ASTM Method D-36-95 “Ring and Ball”, in the range between 50° C. and 300° C., and/or the thermoplastic adhesive material may be a hotmelt adhesive comprising at least one thermoplastic polymer in combination with other thermoplastic diluents such as tackifying resins, plasticizers and additives such as antioxidants.


The thermoplastic adhesive used for the fibrous layer may have elastomeric properties, such that the web formed by the fibers on the SAP layer is able to be stretched as the SAP swell. Example elastomeric, hotmelt adhesives include thermoplastic elastomers such as ethylene vinyl acetates, polyurethanes, polyolefin blends of a hard component (generally a crystalline polyolefin such as polypropylene or polyethylene) and a Soft component (such as ethylene-propylene rubber); copolyesters such as poly (ethylene terephthalate-co-ethylene azelate); and thermoplastic elastomeric block copolymers having thermoplastic end blocks and rubbery mid blocks designated as A-B-A block copolymers: mixtures of structurally different homopolymers or copolymers, e.g., a mixture of polyethylene or polystyrene with an A-B-A block copolymer; mixtures of a thermoplastic elastomer and a low molecular weight resin modifier, e.g., a mixture of a styrene-isoprenestyrene block copolymer with polystyrene; and the elastomeric, hot-melt, pressure-sensitive adhesives described herein. Elastomeric, hot-melt adhesives of these types are described in more detail in U.S. Pat. No. 4,731,066 issued to Korpman on Mar. 15, 1988.


The thermoplastic adhesive material may be applied as fibers. The fibers may have an average thickness of about 1 to about 50 micrometers or about 1 to about 35 micrometers and an average length of about 5 mm to about 50 mm or about 5 mm to about 30 mm, specifically reciting all 0.1 micrometer increments within the above-specified ranges and any ranges formed therein or thereby. To improve the adhesion of the thermoplastic adhesive material to the materials 16 or 16′ or to any other layer, in particular any other nonwoven layers, such layers may be pre-treated with an auxiliary adhesive. The fibers adhere to each other to form a fibrous layer, which can also be described as a mesh.


Superabsorbent Polymer (SAP)


“Superabsorbent polymers” (“SAP”), as used herein, refer to absorbent materials which are cross-linked polymeric materials that can absorb at least 10 times their weight of an aqueous 0.9% saline solution as measured using the Centrifuge Retention Capacity (CRC) test (EDANA method WSP 241.2-05E). The SAP used may have a CRC value of more than 20 g/g, more than 24 g/g, from 20 to 50 g/g, from 20 to 40 g/g, or from 24 to 30 g/g, specifically reciting all 0.1 g/g increments within the above-specified ranges and any ranges created therein or thereby. The SAP useful with the present disclosure may include a variety of water-insoluble, but water-swellable polymers capable of absorbing large quantities of fluids.


The superabsorbent polymer may be in particulate form so as to be flowable in the dry state. Particulate absorbent polymer materials may be made of poly(meth)acrylic acid polymers. However, starch-based particulate absorbent polymer material may also be used, as well polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxymethylcellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer of polyacrylonitrile. The superabsorbent polymer may be polyacrylates and polyacrylic acid polymers that are internally and/or surface cross-linked. Suitable materials are described in the PCT Patent Application Nos. WO 07/047598, WO 07/046052, WO2009/155265, and WO2009/155264, for example. In some embodiments, suitable superabsorbent polymer particles may be obtained by generally known production processes as described in WO 2006/083584, for example. The superabsorbent polymers may be internally cross-linked, i.e., the polymerization is carried out in the presence of compounds having two or more polymerizable groups which can be free-radically copolymerized into the polymer network. Useful crosslinkers include, for example, ethylene glycol dimethacrylate, diethylene glycol diacrylate, allyl methacrylate, trimethylolpropane triacrylate, triallylamine, tetraallyloxyethane as described in EP-A 530 438, di- and triacrylates as described in EP-A 547 847, EP-A 559 476, EP-A 632 068, WO 93/21237, WO 03/104299, WO 03/104300, WO 03/104301, and in DE-A 103 31 450, mixed acrylates which, as well as acrylate groups, include further ethylenically unsaturated groups, as described in DE-A 103 31 456 and DE-A 103 55 401, or crosslinker mixtures as described, for example, in DE-A 195 43 368, DE-A 196 46 484, WO 90/15830, and WO 02/32962 as well as cross-linkers described in WO2009/155265. The superabsorbent polymer particles may be external surface cross-linked, or post cross-linked. Useful post-crosslinkers include compounds including two or more groups capable of forming covalent bonds with the carboxylate groups of the polymers. Useful compounds include for example alkoxysilyl compounds, polyaziridines, polyamines, polyamidoamines, di- or polyglycidyl compounds as described in EP-A 083 022, EP-A 543 303 and EP-A 937 736, polyhydric alcohols as described in DE-C 33 14 019, cyclic carbonates as described in DE-A 40 20 780, 2-oxazolidone and its derivatives, such as N-(2-hydroxyethyl)-2-oxazolidone as described in DE-A 198 07 502, bis- and poly-2-oxazolidones as described in DE-A 198 07 992, 2-oxotetrahydro-1,3-oxazine and its derivatives as described in DE-A 198 54 573, N-acyl-2-oxazolidones as described in DE-A 198 54 574, cyclic ureas as described in DE-A 102 04 937, bicyclic amide acetals as described in DE-A 103 34 584, oxetane and cyclic ureas as described in EP1,199,327 and morpholine-2,3-dione and its derivatives as described in WO03/031482.


In some embodiments, the SAP may be formed from polyacrylic acid polymers or polyacrylate polymers, for example, having a neutralization degree of from 60% to 90%, or of about 75%, having, for example, sodium counter ions.


The SAP useful for the present disclosure may be of numerous shapes. The term “particles” refers to granules, fibers, flakes, spheres, powders, platelets and other shapes and forms known to persons skilled in the art of superabsorbent polymer particles. In some embodiments, the SAP particles can be in the shape of fibers, i.e., elongated, acicular superabsorbent polymer particles. In those embodiments, the superabsorbent polymer particles fibers may have a minor dimension (i.e., diameter of the fiber) of less than about 1 mm, usually less than about 500 μm, or less than 250 μm down to 50 μm, specifically reciting all 1 μm increments within the above-specified ranges and any ranges formed therein or thereby. The length of the fibers may be about 3 mm to about 100 mm, specifically reciting all 1 mm increments within the above-specified range and any ranges formed therein or thereby. The fibers may also be in the form of a long filament that may be woven.


SAP may be spherical-like particles. In contrast to fibers, “spherical-like particles” have a longest and a smallest dimension with a particulate ratio of longest to smallest particle dimension in the range of 1-5, where a value of 1 would equate a perfectly spherical particle and 5 would allow for some deviation from such a spherical particle. The superabsorbent polymer particles may have a particle size of less than 850 μm, from 50 to 850 μm, from 100 to 710 μm, or from 150 to 650 μm, specifically reciting all 1 μm increments within the above-specified ranges and any ranges formed therein or thereby, as measured according to EDANA method WSP 220.2-05. SAP having a relatively low particle size may help to increase the surface area of the absorbent material which is in contact with liquid exudates and therefore supports fast absorption of liquid exudates.


The SAP may have a particle sizes in the range from 45 μm to 4000 μm, more specifically a particle size distribution within the range of from 45 μm to about 2000 μm, or from about 100 μm to about 1000, 850 or 600 μm, specifically reciting all 1 μm increments within the above-specified ranges and any ranges formed therein or thereby. The particle size distribution of a material in particulate form can be determined, for example, by means of dry sieve analysis (EDANA 420.02 “Particle Size distribution).


In some embodiments herein, the superabsorbent material may be in the form of particles with a mass medium particle size up to 2 mm, between 50 microns and 2 mm or to 1 mm, or from 100 μm, 200 μm, 300 μm, 400 μm, 500 μm, 1000 μm, 800 μm, or 700 μm; as can, for example, be measured by the method set out in for example EP-A-0,691,133. In some embodiments of the present disclosure, the superabsorbent polymer material is in the form of particles whereby at least 80% by weight are particles of a size between 50 μm and 1200 μm and having a mass median particle size between any of the range combinations above. In addition, or in another embodiment of the present disclosure, the particles may be essentially spherical. In yet another or additional embodiment of the present disclosure, the superabsorbent polymer material may have a relatively narrow range of particle sizes, e.g., with the majority (e.g., at least 80%, at least 90%, at least 95%, or even at least 99% by weight) of particles having a particle size between 50 μm and 1000 μm, between 100 μm and 800 μm, or between 200 μm and 600 μm, specifically reciting all 1 μm increments within the above-specified ranges and any ranges formed therein or thereby.


The surface of the SAP may be coated, for example, with a cationic polymer. Certain cationic polymers may include polyamine or polyimine materials. In some embodiments, the SAP may be coated with chitosan materials such as those disclosed in U.S. Pat. No. 7,537,832 B2. In some other embodiments, the SAP may comprise mixed-bed Ion-Exchange absorbent polymers such as those disclosed in WO 99/34841 and WO 99/34842.


The absorbent core may comprise one or more types of SAP.


For most absorbent articles, liquid discharges from a wearer occur predominately in the front half of the article, in particular for a diaper. The front half of the article (as defined by the region between the front edge and a transversal line placed at a distance of half L from the front waist edge 10 or rear waist edge 12 may therefore comprise most of the absorbent capacity of the core. Thus, at least 60% of the SAP, or at least 65%, 70%, 75%, 80%, or 85% of the SAP may be present in the front half of the absorbent article, the remaining SAP being disposed in the rear half of the absorbent article. In other embodiments, the SAP distribution may be uniform through the core or may have other suitable distributions.


The total amount of SAP present in the absorbent core may also vary according to expected user. Diapers for newborns may require less SAP than infant, child, or adult incontinence diapers. The amount of SAP in the core may be about 5 to 60 g or from 5 to 50 g, specifically reciting all 0.1 increments within the specified ranges and any ranged formed therein or thereby. The average SAP basis weight within the (or “at least one”, if several are present) deposition area 8 of the SAP may be at least 50, 100, 200, 300, 400, 500 or more g/m2. The areas of the channels (e.g., 27, 27′) present in the absorbent material deposition area 8 are deduced from the absorbent material deposition area to calculate this average basis weight.


Core Wrap


The core wrap may be made of a single substrate, material, or nonwoven folded around the absorbent material, or may comprise two (or more) substrates, materials, or nonwovens which are attached to another. Typical attachments are the so-called C-wrap and/or sandwich wrap. In a C-wrap, as illustrated, for example, in FIGS. 2 and 7, the longitudinal and/or transversal edges of one of the substrates are folded over the other substrate to form flaps. These flaps are then bonded to the external surface of the other substrate, typically by gluing.


The core wrap may be formed by any materials suitable for receiving and containing the absorbent material. Typical substrate materials used in the production of conventional cores may be used, in particular paper, tissues, films, wovens or nonwovens, or laminates or composites of any of these. The core wrap may be formed by a nonwoven web, such as a carded nonwoven, spunbond nonwoven (“S”) or meltblown nonwoven (“M”), and laminates of any of these. For example, spunmelt polypropylene nonwovens may be suitable, in particular those having a laminate web SMS, or SMMS, or SSMMS, structure, and having a basis weight range of about 5 gsm to about 15 gsm. Suitable materials are disclosed in U.S. Pat. No. 7,744,576, U.S. Pat. Publ. No. 2011/0268932A1, U.S. Pat. Publ. No. 2011/0319848A1, and U.S. Pat. Publ. No. 2011/0250413A1. Nonwoven materials provided from synthetic fibers may also be used, such as PE, PET, and/or PP, for example.


If the core wrap comprises a first substrate, nonwoven or material 16 and a second substrate, nonwoven, or materials 16′ these may be made of the same type of material, may be made of different materials, or one of the substrates may be treated differently than the other to provide it with different properties. As the polymers used for nonwoven production are inherently hydrophobic, they may be coated with hydrophilic coatings if placed on the fluid receiving side of the absorbent core. It may be advantageous that the top side of the core wrap, i.e., the side placed closer to the wearer in the absorbent article, be more hydrophilic than the bottom side of the core wrap. A possible way to produce nonwovens with durably hydrophilic coatings is via applying a hydrophilic monomer and a radical polymerization initiator onto the nonwoven, and conducting a polymerization activated via UV light resulting in monomer chemically bound to the surface of the nonwoven. An alternative possible way to produce nonwovens with durably hydrophilic coatings is to coat the nonwoven with hydrophilic nanoparticles, e.g., as described in WO 02/064877.


Permanently hydrophilic nonwovens are also useful in some embodiments. Surface tension, as described in U.S. Pat. No. 7,744,576 (Busam et al.), can be used to measure how permanently a certain hydrophilicity level is achieved. Liquid strike through, as described in U.S. Pat. No. 7,744,576, may be used to measure the hydrophilicity level. The first and/or second substrate may have a surface tension of at least 55, at least 60, or at least 65 mN/m or higher when wetted with saline solution. The substrate may also have a liquid strike through time of less than 5 seconds for a fifth gush of liquid. These values can be measured using the test methods described in U.S. Pat. No. 7,744,576B2: “Determination Of Surface Tension” and “Determination of Strike Through” respectively.


Hydrophilicity and wettability are typically defined in terms of contact angle and the strike through time of the fluids, for example, through a nonwoven fabric. This is discussed in detail in the American Chemical Society publication entitled “Contact angle, wettability and adhesion”, edited by Robert F. Gould (Copyright 1964). A substrate having a lower contact angle between the water and the surface of substrate may be said to be more hydrophilic than another.


The substrates may also be air-permeable. Films useful herein may therefore comprise micro-pores. The substrate may have an air-permeability of from 40 or from 50, to 300 or to 200 m3/(m2×min), as determined by EDANA method 140-1-99 (125 Pa, 38.3 cm2). The material of the core wrap may alternatively have a lower air-permeability, e.g., being non-air-permeable, for example, to facilitate handling on a moving surface comprising vacuum.


The core wrap may be at least partially sealed along all the sides of the absorbent core so that substantially no absorbent material leaks out of the core. By “substantially no absorbent material” it is meant that less than 5%, less than 2%, less than 1%, or about 0% by weight of absorbent material escape the core wrap. The term “seal” is to be understood in a broad sense. The seal does not need to be continuous along the whole periphery of the core wrap but may be discontinuous along part or the whole of it, such as formed by a series of seal points spaced on a line. A seal may be formed by gluing and/or thermal bonding.


If the core wrap is formed by two substrates 16, 16′, four seals may be used to enclose the absorbent material 60 within the core wrap. For example, a first substrate 16 may be placed on one side of the core (the top side as represented in the Figures) and extend around the core's longitudinal edges to at least partially wrap the opposed bottom side of the core. The second substrate 16′ may be present between the wrapped flaps of the first substrate 16 and the absorbent material 60. The flaps of the first substrate 16 may be glued to the second substrate 16′ to provide a strong seal. This so called C-wrap construction may provide benefits such as improved resistance to bursting in a wet loaded state compared to a sandwich seal. The front side and rear side of the core wrap may then also be sealed by gluing the first substrate and second substrate to another to provide complete encapsulation of the absorbent material across the whole of the periphery of the core. For the front side and rear side of the core, the first and second substrates may extend and may be joined together in a substantially planar direction, forming for these edges a so-called sandwich construction. In the so-called sandwich construction, the first and second substrates may also extend outwardly on all sides of the core and be sealed flat, or substantially flat, along the whole or parts of the periphery of the core typically by gluing and/or heat/pressure bonding. In an embodiment, neither the first nor the second substrates need to be shaped, so that they can be rectangularly cut for ease of production but other shapes are within the scope of the present disclosure.


The core wrap may also be formed by a single substrate which may enclose as in a parcel wrap the absorbent material and be sealed along the front side and rear side of the core and one longitudinal seal.


SAP Deposition Area


The absorbent material deposition area 8 may be defined by the periphery of the layer formed by the absorbent material 60 within the core wrap, as seen from the top side of the absorbent core. The absorbent material deposition area 8 may have various shapes, in particular, a so-called “dog bone” or “hour-glass” shape, which shows a tapering along its width towards the middle or “crotch” region of the core. In this way, the absorbent material deposition area 8 may have a relatively narrow width in an area of the core intended to be placed in the crotch region of the absorbent article, as illustrated in FIG. 1. This may provide better wearing comfort. The absorbent material deposition area 8 may thus have a width (as measured in the transversal direction) at its narrowest point which is less than about 100 mm, 90 mm, 80 mm, 70 mm, 60 mm, or even less than about 50 mm. This narrowest width may further be at least 5 mm, or at least 10 mm, smaller than the width of the deposition area 8 at its largest point in the front and/or rear regions deposition area 8. The absorbent material deposition area 8 may also be generally rectangular, for example as shown in FIGS. 4-6, but other deposition areas, such as a “T,” “Y,” “sand-hour,” or “dog-bone” shapes are also within the scope of the present disclosure.


The basis weight (amount deposited per unit of surface) of the SAP may also be varied along the deposition area 8 to create a profiled distribution of absorbent material, in particular SAP, in the longitudinal direction, in the transversal direction, or both directions of the core. Hence, along the longitudinal axis of the core, the basis weight of absorbent material may vary, as well as along the transversal axis, or any axis parallel to any of these axes. The basis weight of SAP in areas of relatively high basis weight may thus be at least 10%, 20%, 30%, 40%, or 50% higher than in an area of relatively low basis weight. In one embodiment, the SAP present in the absorbent material deposition area 8 at the level of the crotch point C may have more SAP per unit of surface deposited as compared to another area of the absorbent material deposition area 8.


The absorbent material may be deposited using known techniques, which may allow relatively precise deposition of SAP at relatively high speed. In particular, the SAP printing technology as disclosed in U.S. Pat. Publ. No. 2008/0312617 and U.S. Pat. Publ. No. 2010/0051166A1 (both to Hundorf et al.) may be used. This technique uses a printing roll to deposit SAP onto a substrate disposed on a grid of a support which may include a plurality of cross bars extending substantially parallel to and spaced from one another so as to form channels extending between the plurality of cross-bars. This technology allows high-speed and precise deposition of SAP on a substrate. The channels of the absorbent core may be formed for example by modifying the pattern of the grid and receiving drums so that no SAP is applied in areas corresponding to the channels. EP application number 11169396.6 discloses this modification in more details.


Channels


The absorbent material deposition area 8 may comprise at least one channel 26, which is at least partially oriented in the longitudinal direction of the article 80 (i.e., has a longitudinal vector component). Other channels may be at least partially oriented in the lateral direction (i.e., has a lateral vector component) or in any other direction. If the following, the plural form “channels” will be used to mean “at least one channel”. The channels may have a length L′ projected on the longitudinal axis 80 of the article that is at least 10% of the length L of the article. The channels may be formed in various ways. For example, the channels may be formed by zones within the absorbent material deposition area 8 which may be substantially free of, or free of, absorbent material, in particular SAP. In addition or alternatively, the channel(s) may also be formed by continuously or discontinuously bonding the top side of the core wrap to the bottom side of the core wrap through the absorbent material deposition area 8. The channels may be continuous but it is also envisioned that the channels may be intermittent. The acquisition-distribution system or layer 50, or another layer of the article, may also comprise channels, which may or not correspond to the channels of the absorbent core.


In some embodiments, the channels may be present at least at the same longitudinal level as the crotch point C or the lateral axis 60 in the absorbent article, as represented in FIG. 1 with the two longitudinally extending channels 26, 26′. The channels may also extend from the crotch region 7 or may be present in the front waist region 5 and/or in the rear waist region 6 of the article.


The absorbent core 28 may also comprise more than two channels, for example, at least 3, at least 4, at least 5, or at least 6 or more. Shorter channels may also be present, for example in the rear waist region 6 or the front waist region 5 of the core as represented by the pair of channels 27, 27′ in FIG. 1 towards the front of the article. The channels may comprise one or more pairs of channels symmetrically arranged, or otherwise arranged relative to the longitudinal axis 80.


The channels may be particularly useful in the absorbent core when the absorbent material deposition area is rectangular, as the channels may improve the flexibility of the core to an extent that there is less advantage in using a non-rectangular (shaped) core. Of course channels may also be present in a layer of SAP having a shaped deposition area.


The channels may extend substantially longitudinally, which means that each channel extends more in the longitudinal direction than in the transverse direction, or at least twice as much in the longitudinal direction than in the transverse direction (as measured after projection on the respective axis). In other embodiments, the channels may extend substantially laterally, which means that each channel extends more in the lateral direction than in the transverse direction, or at least twice as much in the longitudinal direction than in the transverse direction (as measured after projection on the respective axis).


The channels may be completely oriented longitudinally and parallel to the longitudinal axis or completely oriented transversely and parallel to the lateral axis, but also may be curved. In various embodiments, some or all the channels, in particular the channels present in the crotch region 7, may be concave towards the longitudinal axis 80, as, for example, represented in FIG. 1 for the pair of channels 26, 26′. The radius of curvature may typically be at least equal (and may be at least 1.5 or at least 2.0 times this average transverse dimension) to the average transverse dimension of the absorbent layer; and also straight but under an angle of (e.g., from 5°) up to 30°, up to 20°, up to 10° with a line parallel to the longitudinal axis. The radius of curvature may be constant for a channel, or may vary along its length. This may also include channels with an angle therein, provided the angle between two parts of a channel is at least 120°, at least 150°; and in any of these cases, provided the longitudinal extension of the channel is more than the transverse extension. The channels may also be branched. For example, a central channel superposed with the longitudinal axis in the crotch region 7 which branches towards the rear waist edge 12 and/or towards the front waist edge 10 of the article.


In some embodiments, there is no channel that coincides with the longitudinal axis 80 of the article or the core. When present as symmetrical pairs relative to the longitudinal axis 80, the channels may be spaced apart from one another over their whole longitudinal dimension. The smallest spacing distance may be at least 5 mm, at least 10 mm, or at least 16 mm, for example.


Furthermore, in order to reduce the risk of fluid leakages, the longitudinal main channels may not extend up to any of the edges of the absorbent material deposition area 8, and may therefore be fully encompassed within the absorbent material deposition area 8 of the core. The smallest distance between a channel and the closest edge of the absorbent material deposition area 8 may be at least 5 mm.


The channels may have a width We along at least part of its length which is at least 2 mm, at least 3 mm, at least 4 mm, up to for example 20 mm, 16 mm, or 12 mm, for example. The width of the channel may be constant through substantially the whole length of the channel or may vary along its length. When the channels are formed by absorbent material-free zone within the absorbent material deposition area 8, the width of the channels is considered to be the width of the material free zone, disregarding the possible presence of the core wrap within the channels. If the channels are not formed by absorbent material free zones, for example mainly though bonding of the core wrap through the absorbent material zone, the width of the channels if the width of this bonding.


At least some or all of the channels may be permanent channels, meaning their integrity is at least partially maintained both in the dry state and in the wet state. Permanent channels may be obtained by provision of one or more adhesive materials, for example, the fibrous layer of adhesive material or construction glue that helps adhere a substrate with an absorbent material within the walls of the channel Permanent channels may also be formed by bonding the upper side and lower side of the core wrap (e.g., the first substrate 16 and the second substrate 16′) and/or the topsheet 24 to the backsheet 25 together through the channels. Typically, an adhesive may be used to bond both sides of the core wrap or the topsheet and the a backsheet through the channels, but it is possible to bond via other known processes, such as pressure bonding, ultrasonic bonding, heat bonding, or combination thereof. The core wrap or the topsheet 24 and the backsheet 25 may be continuously bonded or intermittently bonded along the channels. The channels may advantageously remain or become visible at least through the topsheet and/or backsheet when the absorbent article is fully loaded with a fluid. This may be obtained by making the channels substantially free of SAP, so they will not swell, and sufficiently large so that they will not close when wet. Furthermore, bonding the core wrap to itself or the topsheet to the backsheet through the channels may be advantageous.



FIG. 9 illustrates an example absorbent core 28 of the present disclosure. This core 28, and the cores illustrated in FIGS. 12 and 14-20, may be used in the absorbent articles of the present disclosure and may have many or all of the features discussed herein. In various embodiments, profiles of the sum of the lateral widths of one or more channels (plotted on the Y-axis) may be plotted relative to the longitudinal length about the longitudinal axis 80′ (plotted on the X-axis) of portions of the one or more channels. Stated another way, the sum of the lateral widths of the one or more channels over a particular a longitudinal length about the longitudinal axis 80′ of the one or more channels may be plotted to create a profile.


To obtain data for such profiles, first, the absorbent article or the absorbent core should be placed on a light table or a light source suitable for viewing the channels within the absorbent core. If the absorbent core is being used, it should first be removed from the absorbent article using any suitable techniques. The wearer-facing surface of the absorbent article or the absorbent core should face away from the surface of the light table. The absorbent article or the absorbent core should be attached to the light illuminating surface of the light table or light source using tape or other attachment members. Second, a longitudinal length along the longitudinal axis 80 or 80′ (e.g., 5 mm, 10 mm, 15 mm, 20 mm, 50 mm, 100 mm) should be selected for measurement. A rigid or flexible tape measure, graduated in mm, should be used to measure the longitudinal length along the longitudinal axis 80 or 80′. A dot should be placed on the absorbent article or the absorbent core at either end of the longitudinal length on the longitudinal axis 80 or 80′. Next, a line that is parallel to the lateral axis 90′ should be drawn through each dot. This enclosed area “EA” between the lines is the area to be measured. The enclosed area “EA” can be a portion of the absorbent article's or absorbent core's longitudinal length or the entire length of the absorbent article or absorbent core from the front waist edge 10 or front side 280 to the rear waist edge 12 or rear side 282, respectively. In some instances, it may be desirable to profile a large longitudinal length of the absorbent article or absorbent core, while, in other instances, it may be desirable to profile a small longitudinal length. Once the longitudinal length to be used is indicated on the absorbent article or the absorbent core, the sum of the lateral widths of the channels within the enclosed area should be measured parallel to the lateral axis every 5 mm along the longitudinal length using the tape measure. If only one channel is present at a particular 5 mm increment within the enclosed area “EA” only one width will be the sum of the lateral widths of the channel at that particular increment, while if more than one channel is present at a particular 5 mm increment within the enclosed area “EA”, the sum of the lateral widths at that increment will be the sum of those two or more lateral widths of the channels. Those results should then be plotted to create a profile or graph with the sum of the lateral widths of the one or more channels being plotted on the Y-axis and the longitudinal length along the longitudinal axis 80 or 80′ at which they were taken on the X-axis. The X-axis should be graduated in 5 mm increments to correspond with lateral width measurements being taken every 5 mm along the longitudinal axis 80 or 80′. The Y-axis may be graduated in 1 mm increments, 2 mm increments, or greater than 2 mm increments depending on the values of the sum of the lateral widths of the one or more channels.


Referring to FIG. 9, as an example, the enclosed area “EA” is between the two dashed lines at the end of the longitudinal length L′ of the one or more channels along the longitudinal axis 80′. For all absorbent core 28 embodiments, the longitudinal axis 80′ corresponds with the longitudinal axis 80 of the absorbent article and the lateral axis 90′ corresponds with the lateral axis 90 of the absorbent article. Lateral width measurements of the channels 26 and 26′ are taken parallel to the lateral axis 90′ every 5 mm Each 5 mm increment is indicated as a line “L” in FIG. 9. The first measurement is taken 5 mm into the enclosed area “EA” from the top dashed line “TL”. While FIG. 9 is not to scale, a profile of the sum of the lateral widths taken in a direction parallel to the lateral axis 90′ every 5 mm along the longitudinal axis 80′ would look generally like the example profile of FIG. 10. The longitudinal length along the longitudinal axis 80 is plotted on the X-axis and the sum of the lateral widths is plotted on the Y-axis. In this example, the sums of the laterals widths of the channels within the enclosed area (every 5 mm) are all 10 mm (5 mm per channel). Other sums of the lateral widths of the channels are within the scope of the present disclosure. Example sums of the lateral widths may be in the range of 5 mm to 120 mm, specifically reciting all 1 mm increments within the specified range and any ranges formed therein or thereby. The enclosed area may extend at least 5 mm, at least 10 mm, at least 15 mm, at least 20 mm, at least 30 mm, at least 40 mm, at least 50 mm, at least 60 mm, or at least 70 mm, for example, along the longitudinal axis 90′. The enclosed area may be smaller for sanitary napkins since their absorbent cores are typically smaller than diapers. Thus, the profile from FIG. 9 is constant, or substantially constant, since the sum of the lateral widths of the channels 26 and 26′ taken every 5 mm along the longitudinal axis 80′ should have the same value. If only channel 26 were present in the enclosed area of FIG. 9, the profile would also be constant, or substantially constant, since the lateral width of the channel 26 measured parallel to the lateral axis 90′ is constant, or substantially constant, in this embodiment along the longitudinal length L′. The second channel 26′ may be positioned on the opposite side of the longitudinal axis 80′ as the first channel 26. The profile of the second channel 26′ may also be constant, or substantially constant, about a longitudinal length, such as L′ of FIG. 9, since the lateral width of the second channel 26′ is constant, or substantially constant, about the channel's longitudinal length L′. In other embodiments, the lateral widths of each channel 26 and 26′ may be constant, substantially constant, or variable along a longitudinal length or a portion thereof. In other embodiments, one channel (e.g., channel 26) may have a constant, or substantially constant, lateral width about its longitudinal length, while the other channel (e.g., channel 26′) may have a varying lateral width about its longitudinal length. In the embodiment of FIG. 9, the channel 26 and the channel 26′ may have the same longitudinal length along the longitudinal axis 80′. In other embodiments, the first and second or more channels may each have a different longitudinal length along the longitudinal axis 80′.


The above is merely an example non-limiting configuration of how to measure the sum of the lateral widths over a particular longitudinal length along the longitudinal axis 80′. As discussed below, other profiles are also within the scope of the present disclosure based on the configurations and/or orientations of the channels within the measured longitudinal length and/or enclosed area.


Again referring to FIG. 9, a profile of the sum of the lateral widths of the channels 26 and 26′ over a portion of the longitudinal length on a first side of the lateral axis 90′ may be different than a profile of the sum of the lateral widths of the channels 26 and 26′ over another portion of the longitudinal length on a second side of the lateral axis 90′. In other embodiments, the profile of the sum of the lateral widths of the channels 26 and 26′ over a portion of the longitudinal length on the first side of the lateral axis 90′ may be the same, or substantially the same, as the profile of the sum of the lateral widths of the channels 26 and 26′ over a portion of the longitudinal length on the second side of the lateral axis 90


In an embodiment, referring to FIG. 1, the absorbent core 28 may comprise at least three channels or four channels (e.g., 26, 26′, 27, 27′). These channels may be free of, or substantially free of (e.g., less than 10%, less than 5%, less than 3%, less than 2%, or less than 1%), superabsorbent polymers and may be at least partially oriented in the longitudinal direction and/or may be at least partially oriented in the lateral direction. In various embodiments, the longitudinal lengths of the channels 26 and 26′ about the longitudinal axis 80 may be the same, substantially the same (e.g., within 2 mm or less of each other), or different and the longitudinal lengths of the channels 27 and 27′ about the longitudinal axis 80 may be the same, substantially the same, or different. The longitudinal length of the channels 26 and 26′ may be larger than the longitudinal length of the channels 27 and 27′. The average lateral width over the longitudinal lengths of the channels 27 and 27′ may be the same, substantially the same, or may be different. Likewise, the average lateral width over the longitudinal lengths of the channels 26 and 26′ may be the same, substantially the same, or may be different. The average lateral width of any of the channels 26, 26′, 27, and 27′ may be the same, substantially the same, or different. This rationale may apply to any channel configurations disclosed herein.


In an embodiment, referring again to FIG. 1, at least two of the three channels 26, 26′, 27, and 27′ may be at least partially oriented in the longitudinal direction along of the longitudinal axis 80 of the article. Each of the channels 26, 26′, 27, and 27′ may have lateral widths taken parallel to the lateral axis 90. Referring to FIG. 11, a profile of the sum of the lateral widths of the channels over a longitudinal length along the longitudinal axis 80 of at least 5 mm, at least 10 mm, at least 15 mm, at least 20 mm, at least 25 mm, at least 30 mm, at least 35 mm, at least 40 mm, at least 45 mm, at least 50 mm or greater taken along the longitudinal axis 80 may have two maximum peaks “MP.” The maximum peaks may be separated from each other by a gap “G” extending at least 1 mm, at least 3 mm, at least 5 mm, at least 10 mm, at least 15 mm, at least 20 mm or greater of the longitudinal length about the longitudinal axis 80. An example of such a profile is illustrated in FIG. 11. The profile of FIG. 11 was taken between the longitudinal length represented by lines A and B every 5 mm in longitudinal length (represented by dots along the first side edge 3). Lines parallel to the lateral axis 90 and intersecting each dot should be drawn on the absorbent article. The sum of the lateral width of the channels taken parallel to the lateral axis 90 should be measured on each line using the tape measure. Although the maximum peaks “MP” of FIG. 11 are illustrated separated by a 5 mm gap “G”, this gap could be less than 1 mm or greater than 1 mm, for example, 1-15 mm or 1-9 mm.


Again referring to FIG. 11, the profile of the sum of the lateral widths of the channels 26, 26′, 27, and/or 27′ over a longitudinal length of at least 20 mm taken along the longitudinal axis 80 may be bimodal and may have a portion between the two modes where the sum of the lateral widths of at least three of the channels 26, 26′, 27, and 27′ or all of the channels is zero. This portion where the sum of the lateral widths of at least three of the channels 26, 26′, 27, and 27′ or all of the channels is zero is indicated by the gap G in FIG. 11.


In another embodiment, referring to FIG. 12, the absorbent core 28 may comprise the first channel 26 and the second channel 26′ as described above and one or more pockets 29 that are free of, or substantially free of, the superabsorbent polymers. As an example, the pocket 29 may have a width dimension of 20 mm to 110 mm or less or greater, such as 90 mm (about the lateral axis 90′) and a length dimension of 30 mm to 00 mm or less or greater, such as 50 mm (about the longitudinal axis 80′). The one or more pockets 29 may have a portion positioned on the longitudinal axis 80′ and may be positioned in the front waist region 5, the rear waist region 6, and/or the crotch region 7. In another embodiment, a pocket may extend into two or more regions. Although FIGS. 9, 12 and 14-20 only show an absorbent core 28, it will be understood that the front waist region 5, the rear waist region 6, and the crotch region 7 will generally correspond with such regions on the absorbent article as illustrated in FIG. 1. A portion of the one or more pockets 29 may not be positioned on the longitudinal axis 80′. In an embodiment, the one or more pockets 29 may have a portion positioned on the lateral axis 90′. The pocket 29 has lateral widths measured parallel to the lateral axis 90′ and longitudinal lengths measured parallel to the longitudinal axis 80′. A profile of the sum of the lateral widths of the first and second channels 26 and 26′ and the lateral widths of the pocket 29 over a longitudinal length of 50 mm taken along the longitudinal axis 80′ may have two separate, constant, or substantially constant portions, as illustrated in representative form in FIG. 13. FIG. 13 is the sum of the lateral widths of the superabsorbent polymer free, or substantially superabsorbent polymer free, areas of the channels 26 and 26′ and the pocket 29 taken from line C to line D in FIG. 12. The longitudinal length along the longitudinal axis 80′ between lines C and D may be at least 50 mm or less or more. As can be seen from FIG. 13, the profile has two constant, or substantially constant portions, representing the sum of the lateral widths of the channels alone, and one portion larger than the constant, or substantially constant portions, representing the sum of the lateral widths of the channels 26 and 26′ and the lateral widths of the pocket 29. The sum of the lateral widths of the first channel 26, the second channel 26′, and the pocket 29 at a point intermediate lines C and D may be in the range of about 20 mm to about 100 mm, for example. The lateral widths should be measured every 5 mm along the longitudinal axis 80′ as discussed above and between lines C and D. The pocket 29 may be a bowel movement “BM” pocket configured to retain BM. In another embodiment, referring to FIG. 14, the pocket 29′ may be positioned at least partially in the front waist region 5 and may be a urine management or retention pocket. In still another embodiment, referring to FIG. 15, the pocket 29″ may be positioned at least partially in the crotch region 7 and may be a urine management or retention pocket and/or a BM pocket. The pocket 29″ may have longitudinal side edges formed by the laterally inboard sides of the channels 26 and 26′ or may have longitudinal side edges formed independently of the laterally inboard side edges of the channels 26 and 26′. The pockets 29, 29′, or 29″ may have lateral widths measured parallel to the lateral axis 90′ every 5 mm along the longitudinal axis 80′ in the range of 10 mm to 110 mm, 20 mm to 100 mm, or 30 mm to 95 mm, specifically reciting all 1 mm increments within the above-specified ranges and any ranges formed therein or thereby.


In yet another embodiment, referring to FIG. 16, the absorbent core 28 may comprise the first channel 26 and/or the second channel 26′ and a third channel 26″ (sometimes referred to in the claims as a second channel if one of the first and second channels 26 and 26′ are not recited). The third channel 26″ may be free of, or substantially free of, superabsorbent polymers and may be positioned in the rear waist region 6, the crotch region 7, and/or the front waist region 5. The third channel 26″ may be positioned within 0-50 mm from the rear waist edge 12 or the rear side 282 or within 0-50 mm from the front waist edge 10 or the front side 280. All 1 mm increments within the above-specified ranges are specifically recited herein including any ranges formed therein or thereby. A sum of the lateral widths of the first channel 26 and the third channel 26″ or the first channel 26, the second channel 26′, and the third channel 26″ at a point along the longitudinal axis (for example, point E of FIG. 16) that is 50 mm, or 30 mm, or 20 mm, or 15 mm, or 10 mm, or 5 mm, or 1 mm, or less from the rear side 282 or the rear waist edge 12 or the front side 280 or front waist edge 10 may be greater than zero. FIG. 17 illustrates an absorbent core 28 comprising a first channel 26, a second channel 26′, a third channel 31, and a fourth channel 31′. Any of these channels may be optional. The sum of the lateral widths of the third channel 31 and the fourth channel 31′ at a point along the longitudinal axis 80′ (for example, point F of FIG. 17) that is 50 mm, or 30 mm, or 20 mm, or 15 mm, or 10 mm, or 5 mm, or 3 mm, or 1 mm, or less from the rear waist edge 12, the rear side 282, the front waist edge 10, or the front side 280 may be greater than zero.


In an embodiment, referring to FIG. 18, the first channel 26 and the second channel 26′ may each have a first arcuate portion 33 in the front waist region 5 and a second arcuate portion 33′ in the rear waist region 6. The arcuate portions 33 and 33′ may face the longitudinal axis 80′. The first channel 26 and the second channel 26′ may also have a third arcuate portion 33″ in the crotch region 7 or a non-arcuate portion in 33″ the crotch region 7. The arcuate portions 33″ or the portions 33″ may also face the longitudinal axis 80′. Tangent lines 35 of the arcuate portions 33 may intersect the longitudinal axis 80′ to create angle A1. The angle of intersection A1 between the tangent lines 35 and the longitudinal axis 80′ may be in the range of 10 degrees to 80 degrees, 20 degrees to 75 degrees, 30 degrees to 60 degrees, or 45 degrees. Tangent lines 35′ of the arcuate portions 33′ may intersect the longitudinal axis 80′ to create angle A2. The angle of intersection A2 between the tangent lines 35′ and the longitudinal axis 80′ may be in the range of 10 degrees to 80 degrees, 20 degrees to 75 degrees, 30 degrees to 60 degrees, or 45 degrees. Tangent lines 35″ of the arcuate portions 33″ may intersect the longitudinal axis 80′ to create angle A3. The angle of intersection A3 between the tangent lines 35″ and the longitudinal axis 80′ may be in the range of 0.1 degrees to 35 degrees or 1 degree to 20 degrees. In an embodiment, tangent lines may extend from the non-arcuate portions 33″ in the crotch region 7. The tangent lines may not intersect the longitudinal axis 80′ and may instead extend in directions parallel to the longitudinal axis 80′. All 0.5 degree increments within the ranges specified in this paragraph are recited herein including any ranges formed therein or thereby.


As can be seen in FIG. 18, the first tangent line 35 taken from the first arcuate portion 33 on a first side of the longitudinal axis 80′ may have a positive slope (rise/run) and the first tangent line 35 taken from the first arcuate portion 33 on the second side of the longitudinal axis 80′ may have a negative slope. The second tangent line 35′ taken from the second arcuate portion 33′ on a first side of the longitudinal axis 80′ may have a negative slope and the second tangent line 35′ taken from the second arcuate portion 33′ on the second side of the longitudinal axis 80′ may have a positive slope. The tangent lines 35″ may also have a positive or a negative slope. The slopes of the various tangent lines may be different if the configuration of the channels is different.


Again referring to FIG. 18, angles A1, A2, and A3 on a first side of the longitudinal axis 80′ may be different than, the same as, or substantially the same as angles A1, A2, and A3, respectively, on a second side of the longitudinal axis 80′. In an embodiment, with respect to angles on one side of the longitudinal axis 80′, angle A1 may be greater than angles A2 and A3 and angle A2 may be greater than angle A3. In other embodiments, with respect to angles on one side of the longitudinal axis 80′, angle A1 and angle A2 may be the same or substantially the same, while angle A3 may be less than angles A1 and A2. In still other embodiments, any of the angles on one side of the longitudinal axis 80′ may be the same or different.


The tangent lines 35 are taken from portions of the arcuate portions 33 in the front waist region 5. The tangent lines 35′ are taken from portions of the arcuate portions 33′ in the rear waist region 6. The tangent lines 35″ are taken from portions of the arcuate portions 33″ in the crotch region 7.


The longitudinal axis 80 or 80′ can be drawn on an absorbent article or the absorbent core, respectively, by connecting the midpoints of the first waist edge 10 or first side 280 and the second waist edge 12 or second side 282, respectively. The tangent lines can be drawn on the absorbent article or the absorbent core using a straight edge. Multiple tangent lines may be drawn on an arcuate portion in the front waist region 5, the rear waist region 6, and/or the crotch region 7. The tangent lines should be drawn long enough to intersect the longitudinal axis 80 or 80′ unless they are positioned parallel to the longitudinal axis 80 or 80′. A protractor, graduated in 1 degree increments, may then be used to measure the angles (A1, A2, and A3) between the tangent lines and the longitudinal axis 80 or 80′. If additional channels are present in the absorbent core 28, additional tangent lines may be drawn on those channels in the same or a similar fashion.


In an embodiment, referring to FIG. 19, in additional to the first and second channels 26 and 26′ discussed above, an absorbent core may comprise a channel or pocket 37 that is free of, or substantially free of, superabsorbent polymers. A portion of the channel or pocket 37 may be located on the longitudinal axis 80′. The channel or pocket 37 may comprise an arcuate portion 39 facing the side 284 or the second side edge 4 and another arcuate portion 39′ facing the side 282 or the first side edge 3. An angle, A4, between a tangent line 41′ (or 41) of the arcuate portion 39′ (or 39) and the longitudinal axis 80′ may be in the range of about 0.1 degrees to 40 degrees, 0.1 degrees to 20 degrees, 0.1 degrees to 15 degrees, 0.1 degrees to 10 degrees, or 0.1 degrees to five degrees, specifically reciting all 0.1 degree increments within the above-specified ranges and any ranges formed therein or thereby. In an embodiment, the tangent line 41 (or 41′) may extend parallel to the longitudinal axis 80′ and never intersect the longitudinal axis 80′. The channel or pocket 37 may be positioned at least partially within the front waist region 5, the rear waist region 6, and/or the crotch region 7.


In an embodiment, referring to FIG. 20, in addition to the first and second channels 26 and 26′, an absorbent core 28 may comprise a channel or a pocket 43 having a portion positioned on the longitudinal axis 80′. The channel or pocket 43 may have a longitudinal length in the range of 10 mm to 150 mm and a lateral width of 10 mm to about 150 mm, specifically reciting all 1 mm increments within the specified ranges and all ranges formed therein or thereby. Other dimensions are also within the scope of the present disclosure. The channel or the pocket 43 may be located in the front waist region 5 or the rear waist region 6, or both. The channel or pocket 43 may have an arcuate portion 45 facing the front side 280 or the front waist edge 10 if the channel or pocket 43 is located in the front waist region 5 and an arcuate portion 45 facing the rear side 282 or the rear waist region 12 if the channel or pocket 43 is located in the rear waist region 6. The channel or pocket 43 may extend into the crotch region 7 in some instances. A tangent line 47 of the arcuate portion 45 may create an angle with the longitudinal axis 80′ in the range of 70 degrees to 110 degrees, 80 degrees to 100 degrees, 85 degrees to 85 degrees, about 90 degrees, or 90 degrees, specifically reciting all 0.5 degree increments within the specified ranges and any ranges formed therein or thereby.


In an embodiment, referring to FIG. 21, in addition to the first and second channels 26 and 26′, an absorbent core 28 may comprise a pocket 53 in the crotch region 7 and/or the rear waist region 6 and one or more channels 55 in the rear waist region 6 and/or the crotch region 7. In another embodiment, the pocket 53 may be in the crotch region 7 and/or the front waist region 5 and the one or more channels 55 may be in the crotch region 7 and/or the front waist region 5. The pocket 53 and the one or more channels 55 may be BM pockets or channels and/or urine management pockets and/or channels. The channels 55 may extend generally in the lateral direction about the lateral axis 90′. The various parameters discussed herein may apply to FIG. 21, if suitable. For instance, at least one, or all of, the channels 55 may have a tangent line 59 extending from an arcuate portion 57 thereof. The angle formed between the tangent line 59 and the longitudinal axis 80′ may be 80 degrees to 100 degrees, about 90 degrees, or 90 degrees, for example.


In an embodiment, referring to FIG. 23, in addition to the first and second channels 26 and 26′, an absorbent core 28 may comprise a perimeter channel 126 and one or more channels 55 in the front region 5, the rear waist region 6 and/or the crotch region 7. As shown in FIG. 23, five channels 55 are located in the crotch region 7. The one or more channels 55 may be BM pockets or channels and/or urine management pockets and/or channels. The channels 55 may extend generally in the lateral direction about the lateral axis 90′. The lateral channels 55 serve as lateral connecting channels 55 between the first channel 26 and the second channel 26 or between the perimeter channel 126 and the perimeter channel 126. The lateral channels 55 may be perpendicular to the longitudinal axis, concave to the transverse axis, convex to the transverse axis, or a combination thereof. The lateral connecting channels 55 may have a width of between 2.5 mm and 15 mm, such as, for example, between 3 mm and 10 mm, between 4 mm and 7 mm, or 5 mm. In an embodiment, the absorbent core 28 may have between 1 and 15 connecting lateral channels 55. The various parameters discussed herein may apply to FIG. 23, if suitable. For instance, at least one, or all of, the channels 55 may have a tangent line 59 extending from an arcuate portion 57 thereof. The angle formed between the tangent line 59 and the longitudinal axis 80′ may be 80 degrees to 100 degrees, about 90 degrees, or 90 degrees, for example. The channels 55 may be free of, or substantially free of, superabsorbent polymers. The channels 55 may have a lateral length of between 20 mm to 50 mm. The channels 55 may connect the first and second channels 26 and 26′ or the perimeter channel 126 to the perimeter channel 126. The perimeter channel 126 may connect one of or both the first and second channels 26 and 26′. Combined, the perimeter channel 126, the first channel 26, the second channel 26′, and one or more lateral connecting channels 55 create a channel network. The first channel 26 and the second channel 26′ may be between 50 and 200 mm in longitudinal length. The lateral connecting channels 55, the first channel 26, and the second channel 26′ frame one or more lateral struts 128 within the absorbent core 28. The perimeter channel 126, the first channel 26 and the second channel 26′ frame one or more longitudinal struts 130.


The embodiments above address the challenge of delivering shape stability in a thin and flexible product. As fluid is applied to the pad and the superabsorbent between the channels swell, thereby causing the substrate layers to be moved out of plane until the forces imparted by the swelling superabsorbents and substrates are equivalent. In essence, the superabsorbents trapped between the two substrate layers and the transverse and longitudinal channels, or between the longitudinal and perimeter channels create reinforcing struts when wet, and resist lateral compression forces. As a result of the formation of these lateral and longitudinal struts, the cross-section of the pad develops an increased bunch compression resistance across the transverse axis, thereby improving the ability of the pad to recover from in-use deformation, and subsequently, maintaining area coverage of the pad on the panty so as to improve product performance.


It should be noted that the transverse struts 128 need to be within 20 mm to 50 mm in length so as to fit the normal gap between thighs in the crotch region for most women, such as, for example, between 30 mm and 400 mm. If the transverse struts are greater than 50 mm, women will feel the pressure of the struts as the superabsorbents swells and the product will be uncomfortable to wear. If the transverse struts are less than 20 mm, the pads will not recover adequately from compression forces to provide adequate area coverage of the panty for ideal performance. The lateral struts 128 have a width between 5 mm and 25 mm such as, for example, between 10 mm and 20 mm, or about 15 mm.


Channel width is important for durability of the bonds and performance of the product. Narrower channels are less likely to resist the shearing forces seen in use while wider channels will detract from the absorbent capacity and/or recovery performance of the core. A range of between 2.5 mm and 15 mm is sufficient for durability of the bonds and overall performance of the product for transverse and longitudinal channels.


The longitudinal struts 130 are important to make sure the product does not fold over on itself in use. The transverse channels also provide natural fold lines which have the potential for allowing the pad to fold over onto itself in the longitudinal direction. The longitudinal struts provide resistance to this tendency to fold over by providing increased longitudinal strength and rigidity when the product is wet. A range of longitudinal strut lengths between 50 mm and 200 mm is sufficient for longitudinal strength and rigidity when the product is wet, and to accommodate a broad range of leg and body sizes. The longitudinal struts 130 have a width between 3 mm and 15 mm such as, for example, between 6 mm and 12 mm, or about 9 mm.


Barrier Leg Cuffs


The absorbent article may comprise a pair of barrier leg cuffs 34. Each barrier leg cuff may be formed by a piece of material which is bonded to the article so it can extend upwards from the inner surface of the article and provide improved containment of liquids and other body exudates approximately at the junction of the torso and legs of the wearer. The barrier leg cuffs are delimited by a proximal edge 64 joined directly or indirectly to the topsheet 24 and/or the backsheet 25 and a free terminal edge 66, which is intended to contact and form a seal with the wearer's skin. The barrier leg cuffs extend at least partially between the front waist edge 10 and the rear waist edge 12 of the absorbent article on opposite sides of the longitudinal axis 80 and are at least present at the level of the crotch point (C) or crotch region. The barrier leg cuffs may be joined at the proximal edge 64 with the chassis of the article by a bond 65 which may be made by gluing, fusion bonding, or combination of other suitable bonding processes. The bond 65 at the proximal edge 64 may be continuous or intermittent. The bond 65 closest to the raised section of the leg cuffs delimits the proximal edge 64 of the standing up section of the leg cuffs.


The barrier leg cuffs may be integral with the topsheet 24 or the backsheet 25 or may be a separate material joined to the article's chassis. The material of the barrier leg cuffs may extend through the whole length of the diapers but may be “tack bonded” to the topsheet 24 towards the front waist edge 10 and rear waist edge 12 of the article so that in these sections the barrier leg cuff material remains flush with the topsheet 24.


Each barrier leg cuff 34 may comprise one, two or more elastic strings 35 close to this free terminal edge 66 to provide a better seal.


In addition to the barrier leg cuffs 34, the article may comprise gasketing cuffs 32, which are joined to the chassis of the absorbent article, in particular to the topsheet 24 and/or the backsheet 25 and are placed externally relative to the barrier leg cuffs. The gasketing cuffs 32 may provide a better seal around the thighs of the wearer. Each gasketing leg cuff may comprise one or more elastic strings or elastic elements in the chassis of the absorbent article between the topsheet 24 and backsheet 25 in the area of the leg openings.


U.S. Pat. No. 3,860,003 describes a disposable diaper which provides a contractible leg opening having a side flap and one or more elastic members to provide an elasticized leg cuff (a gasketing cuff). U.S. Pat. Nos. 4,808,178 and 4,909,803 issued to Aziz et al. describes disposable diapers having “stand-up” elasticized flaps (barrier leg cuffs) which improve the containment of the leg regions. U.S. Pat. Nos. 4,695,278 and 4,795,454 issued to Lawson and to Dragoo respectively, describe disposable diapers having dual cuffs, including gasketing cuffs and barrier leg cuffs. All or a portion of the barrier leg and/or gasketing cuffs may be treated with a lotion.


Acquisition-Distribution System


The absorbent articles of the present disclosure may comprise an acquisition-distribution layer or system 50 (herein “ADS”). One function of the ADS is to quickly acquire the fluid and distribute it to the absorbent core in an efficient manner. The ADS may comprise one, two or more layers, which may form a unitary layer or may remain as discrete layers which may be attached to each other. In an embodiment, the ADS may comprise two layers: a distribution layer 54 and an acquisition layer 52 disposed between the absorbent core and the topsheet, but the present disclosure is not limited to this embodiment.


The ADS may comprise SAP as this may slow the acquisition and distribution of the fluid. Suitable ADS are described in WO 2000/59430 (Daley), WO 95/10996 (Richards), U.S. Pat. No. 5,700,254 (McDowall), and WO 02/067809 (Grad), for example.


Distribution Layer


The distribution layer of the ADS may comprise at least 50% by weight of cross-linked cellulose fibers. The cross-linked cellulosic fibers may be crimped, twisted, or curled, or a combination thereof including crimped, twisted, and curled. This type of material is disclosed in U.S. Pat. Publ. No. 2008/0312622 A1 (Hundorf). The cross-linked cellulosic fibers provide higher resilience and therefore higher resistance to the first absorbent layer against the compression in the product packaging or in use conditions, e.g., under baby weight. This provides the core with a higher void volume, permeability, and liquid absorption, and hence reduced leakage and improved dryness.


Example chemically cross-linked cellulosic fibers suitable for a distribution layer are disclosed in U.S. Pat. Nos. 5,549,791, 5,137,537, WO 9534329, or U.S. Pat. Publ. No. 2007/118087. Example cross-linking agents include polycarboxylic acids such as citric acid and/or polyacrylic acids such as acrylic acid and maleic acid copolymers.


The distribution layer comprising cross-linked cellulose fibers of the present disclosure may comprise other fibers, but this layer may advantageously comprise at least 50%, or 60%, or 70%, or 80%, or 90%, or even up to 100%, by weight of the layer, of cross-linked cellulose fibers (including the cross-linking agents). Examples of such mixed layer of cross-linked cellulose fibers may comprise about 70% by weight of chemically cross-linked cellulose fibers, about 10% by weight polyester (PET) fibers, and about 20% by weight untreated pulp fibers. In another example, the layer of cross-linked cellulose fibers may comprise about 70% by weight chemically cross-linked cellulose fibers, about 20% by weight lyocell fibers, and about 10% by weight PET fibers. In another example, the layer may comprise about 68% by weight chemically cross-linked cellulose fibers, about 16% by weight untreated pulp fibers, and about 16% by weight PET fibers. In another example, the layer of cross-linked cellulose fibers may comprise from about 90-100% by weight chemically cross-linked cellulose fibers.


The distribution layer 54 may be a material having a water retention value of from 25 to 60 or from 30 to 45, measured as indicated in the procedure disclosed in U.S. Pat. No. 5,137,537.


The distribution layer may typically have an average basis weight of from 30 to 400 g/m2 or from 100 to 300 g/m2, specifically reciting all 1.0 g/m2 increments within the above-specified ranges and any ranges formed therein or thereby. The density of the distribution layer may vary depending on the compression of the article, but may be between 0.03 to 0.15 g/cm3 or 0.08 to 0.10 g/cm3, specifically reciting all 1.0 g/cm3 increments within the above-specified ranges and any ranges formed therein or thereby, measured at 0.30 psi (2.07 kPa).


Acquisition Layer


The ADS may comprise an acquisition layer 52. The acquisition layer may be disposed between the distribution layer 54 and the topsheet 24. The acquisition layer 52 may be or may comprise a non-woven material, such as an SMS or SMMS material, comprising a spunbonded, a melt-blown and a further spunbonded layer or alternatively a carded chemical-bonded nonwoven. The nonwoven material may be latex bonded. Example upper acquisition layers 52 are disclosed in U.S. Pat. No. 7,786,341. Carded, resin-bonded nonwovens may be used, in particular where the fibers used are solid round or round hollow PET staple fibers (50/50 or 40/60 mix of 6 denier and 9 denier fibers). An example binder is a butadiene/styrene latex. Nonwovens have the advantage that they can be manufactured outside the converting line and stored and used as a roll of material.


The acquisition layer 52 may be stabilized by a latex binder, for example a styrene-butadiene latex binder (SB latex).


A further acquisition layer may be used in addition to a first acquisition layer described above. For example, a tissue layer may be placed between the first acquisition layer and the distribution layer. The tissue may have enhanced capillarity distribution properties compared to the acquisition layer described above. The tissue and the first acquisition layer may be of the same size or may be of a different size. For example, the tissue layer may extend further in the rear of the absorbent article than the first acquisition layer. An example of hydrophilic tissue is a 13-15 gsm high wet strength made of cellulose fibers from supplier Havix.


Fastening System


The absorbent article may include a fastening system. The fastening system may be used to provide lateral tensions about the circumference of the absorbent article to hold the absorbent article on the wearer as is typical for taped diapers. This fastening system may not be necessary for training pant articles since the waist region of these articles is already bonded. The fastening system may comprise a fastener such as tape tabs, hook and loop fastening components, interlocking fasteners such as tabs & slots, buckles, buttons, snaps, and/or hermaphroditic fastening components, although any other suitable fastening mechanisms are also within the scope of the present disclosure. A landing zone 44 is normally provided on the garment-facing surface of the front waist region 5 for the fastener to be releasably attached thereto. Some example surface fastening systems are disclosed in U.S. Pat. Nos. 3,848,594, 4,662,875, 4,846,815, 4,894,060, 4,946,527, 5,151,092, and 5,221,274. An example interlocking fastening system is disclosed in U.S. Pat. No. 6,432,098. The fastening system may also provide a mechanism for holding the article in a disposal configuration as disclosed in U.S. Pat. No. 4,963,140 issued to Robertson et al.


The fastening system may also include primary and secondary fastening systems, as disclosed in U.S. Pat. No. 4,699,622 to reduce shifting of overlapped portions or to improve fit as disclosed in U.S. Pat. Nos. 5,242,436, 5,499,978, 5,507,736, and 5,591,152.


Front and Rear Ears


In an embodiment, the absorbent article may comprise front ears 46 and rear ears 40. The ears may be an integral part of the chassis, such as formed from the topsheet 24 and/or backsheet 26 as side panel. Alternatively, as represented on FIG. 1, the ears may be separate elements attached by gluing, heat embossing, and/or pressure bonding. The rear ears 40 may be stretchable to facilitate the attachment of the tabs 42 to the landing zone 44 and maintain the taped diapers in place around the wearer's waist. The rear ears 40 may also be elastic or extensible to provide a more comfortable and contouring fit by initially conformably fitting the absorbent article to the wearer and sustaining this fit throughout the time of wear well past when absorbent article has been loaded with exudates since the elasticized ears allow the sides of the absorbent article to expand and contract.


Elastic Waist Feature


The absorbent article may also comprise at least one elastic waist feature (not represented) that helps to provide improved fit and containment. The elastic waist feature is generally intended to elastically expand and contract to dynamically fit the wearer's waist. The elastic waist feature may extend at least longitudinally outwardly from at least one waist edge of the absorbent core 28 and generally forms at least a portion of the end edge of the absorbent article. Disposable diapers may be constructed so as to have two elastic waist features, one positioned in the front waist region and one positioned in the rear waist region. The elastic waist feature may be constructed in a number of different configurations including those described in U.S. Pat. Nos. 4,515,595, 4,710,189, 5,151,092, and 5,221,274.


Relations Between the Layers


Typically, adjacent layers and components may be joined together using conventional bonding methods, such as adhesive coating via slot coating or spraying on the whole or part of the surface of the layer, thermo-bonding, pressure bonding, or combinations thereof. This bonding is not represented in the Figures (except for the bonding between the raised element of the leg cuffs 65 with the topsheet 24) for clarity and readability, but bonding between the layers of the article should be considered to be present unless specifically excluded. Adhesives may be used to improve the adhesion of the different layers between the backsheet 25 and the core wrap. The glue may be any suitable hotmelt glue known in the art.


If an acquisition layer 52 is present, it may be desired that this acquisition layer is larger than or least as large as the distribution layer 54 in the longitudinal and/or transversal dimension. Thus, the distribution layer 52 may be deposited on the acquisition layer. This simplifies handling, in particular if the acquisition layer is a nonwoven which may be unrolled from a roll of stock material. The distribution layer may also be deposited directly on the absorbent core's upper side of the core wrap or another layer of the article. Also, having an acquisition layer 52 that is larger than the distribution layer allows for direct gluing of the acquisition layer to the storage core (at the larger areas). This may provide increased patch integrity and better liquid communication.


The absorbent core and in particular its absorbent material deposition area 8 may be at least as large and long and at least partially larger and/or longer than the acquisition-distribution system (ADS). This is because the absorbent material in the core may more effectively retain fluid and provide dryness benefits across a larger area than the ADS. The absorbent article may have a rectangular SAP layer and a non-rectangular (shaped) ADS. The absorbent article may also have a rectangular (non-shaped) ADS and a rectangular layer of SAP.


Sanitary Napkin Features


In an embodiment, referring to FIG. 22, the absorbent article may be a sanitary napkin 3010. The sanitary napkin 3010 may comprise a liquid permeable topsheet 3014, a liquid impermeable, or substantially liquid impermeable, backsheet 3016, and an absorbent core 3018. The absorbent core 3018 may have any or all of the features described herein with respect to the absorbent cores 28 and, in some embodiments, may have a secondary topsheet instead of the acquisition-distribution system disclosed above. The sanitary napkin 3010 may also comprise wings 3020 extending outwardly with respect to a longitudinal axis 3080 of the sanitary napkin 3010. The sanitary napkin 3010 may also comprise a lateral axis 3090. The wings 3020 may be joined to the topsheet 3014, the backsheet 3016, and/or the absorbent core 3018. The sanitary napkin 3010 may also comprise a front edge 3022, a rear edge 3024 longitudinally opposing the front edge 3022, a first side edge 3026, and a second side edge 3028 longitudinally opposing the first side edge 3026. The longitudinal axis 3080 may extend from a midpoint of the front edge 3022 to a midpoint of the rear edge 3024. The lateral axis 3090 may extend from a midpoint of the first side edge 3028 to a midpoint of the second side edge 3028. The sanitary napkin 3010 may also be provided with additional features commonly found in sanitary napkins as is known in the art.


Method of Making the Article


The absorbent articles and sanitary napkins of the present disclosure may be made by any suitable methods known in the art. In particular, the articles may be hand-made or industrially produced at high speed.


The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm.”


Every document cited herein, including any cross referenced or related patent or application, is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any embodiment disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such embodiment. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.


While particular embodiments of the present disclosure have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications may be made without departing from the spirit and scope of the present disclosure. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this disclosure.

Claims
  • 1. An absorbent article comprising: a front waist edge defining an edge of a front waist region;a rear waist edge longitudinally opposing the front waist edge, the rear waist edge defining an edge of a rear waist region;a crotch region disposed between the front waist region and the rear waist region;a longitudinal axis extending from a midpoint of the front waist edge to a midpoint of the rear waist edge and a lateral axis generally perpendicular to the longitudinal axis;a liquid permeable topsheet;a liquid impermeable backsheet; andan absorbent core disposed at least partially intermediate the topsheet and the backsheet and comprising superabsorbent polymers, wherein the absorbent core comprises a channel network substantially free of the superabsorbent polymers wherein the channel network comprises a perimeter channel, a first longitudinal channel inboard of the perimeter channel, a second longitudinal channel inboard of the perimeter channel, and a plurality of connecting lateral channels wherein the plurality of connecting lateral channels connect one of the first longitudinal channel to the second longitudinal channel or the perimeter channel to the perimeter channel; andwherein the plurality of connecting lateral connecting channels, the first longitudinal channel, and the longitudinal second channel frame one or more lateral struts within the absorbent core and wherein the one or more lateral struts each comprise a lateral length within 20 mm to 50 mm and a longitudinal width of between 5 mm and 25 mm, wherein the plurality of lateral connecting channels is disposed in the crotch region, and wherein the one or more connecting lateral channels comprise a length of 20 mm to 50 mm.
  • 2. The absorbent article of claim 1, wherein the absorbent core comprises less than 15 connecting lateral channels distributed equally along the length of the absorbent core.
  • 3. The absorbent article of claim 1, wherein the first longitudinal channel and the second longitudinal channel comprise a longitudinal length of between 50 mm to 200 mm.
  • 4. The absorbent article of claim 1, wherein one of the first longitudinal channel or the second longitudinal channel comprises an arcuate portion facing the longitudinal axis, wherein an angle between a tangent line of the arcuate portion and the longitudinal axis is greater than or equal to 20 degrees.
  • 5. The absorbent article of claim 1, wherein at least one of the lateral connecting channels are perpendicular to the longitudinal axis.
  • 6. The absorbent article of claim 1, wherein the lateral connecting channels have a longitudinal width of between 2.5 mm and 15 mm.
  • 7. The absorbent article of claim 1, wherein the lateral connecting channels have a longitudinal width of between 3 mm and 10 mm.
  • 8. The absorbent article of claim 1, wherein the lateral connecting channels have a longitudinal width of between 4 mm and 7 mm.
  • 9. The absorbent article of claim 1, wherein the lateral connecting channels have a longitudinal width of about 5 mm.
  • 10. The absorbent article of claim 1, wherein the lateral struts have a longitudinal width of between 10 mm and 20 mm.
  • 11. The absorbent article of claim 1, wherein the lateral struts have a longitudinal width of about 15 mm.
  • 12. The absorbent article of claim 1, wherein the perimeter channel, the first longitudinal channel and the second longitudinal channel frame one or more longitudinal struts and wherein the longitudinal struts have a maximum lateral width of between 3 mm and 15 mm.
  • 13. The absorbent article of claim 12, wherein the longitudinal struts have a maximum lateral width of between 6 and 12 mm.
  • 14. The absorbent article of claim 13, wherein the longitudinal struts have a maximum lateral width of about 9 mm.
CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation-in-part of, and claims priority to U.S. patent application Ser. No. 14/938,093, filed Nov. 11, 2015 which is a continuation of, and claims priority under 35 U.S.C. § 120 to, U.S. patent application Ser. No. 13/709,244, filed on Dec. 10, 2012, and to U.S. patent application Ser. No. 13/709,254, filed on Dec. 10, 2012, the entire disclosures of which are hereby incorporated by reference.

US Referenced Citations (1093)
Number Name Date Kind
1733997 Marr Oct 1929 A
1734499 Marinsky Nov 1929 A
1989283 Limacher Jan 1935 A
2058509 Rose Oct 1936 A
2271676 Bjornbak Feb 1942 A
2450789 Frieman Oct 1948 A
2508811 Best et al. May 1950 A
2568910 Condylis Sep 1951 A
2570796 Gross Oct 1951 A
2570963 Mesmer Oct 1951 A
2583553 Faure Jan 1952 A
2705957 Mauro Apr 1955 A
2788003 Morin Apr 1957 A
2788786 Dexter Apr 1957 A
2798489 Behrman Jul 1957 A
2807263 Newton Sep 1957 A
2830589 Doner Apr 1958 A
2890700 Lönberg-Holm Jun 1959 A
2890701 Weinman Jun 1959 A
2898912 Adams Aug 1959 A
2931361 Sostsrin Apr 1960 A
2977957 Clyne Apr 1961 A
3071138 Gustavo Jan 1963 A
3180335 Duncan et al. Apr 1965 A
3207158 Yoshitake et al. Sep 1965 A
3227160 Joy Jan 1966 A
3386442 Sabee Jun 1968 A
3561446 Jones Feb 1971 A
3572342 Lindquist et al. Mar 1971 A
3572432 Burton Mar 1971 A
3575174 Mogor Apr 1971 A
3578155 Small et al. May 1971 A
3606887 Roeder Sep 1971 A
3610244 Jones Oct 1971 A
3618608 Brink Nov 1971 A
3642001 Sabee Feb 1972 A
3653381 Warnken Apr 1972 A
3670731 Harmon Jun 1972 A
3688767 Goldstein Sep 1972 A
3710797 Marsan Jan 1973 A
3731688 Litt et al. May 1973 A
3756878 Willot Sep 1973 A
3774241 Zerkle Nov 1973 A
3776233 Schaar Dec 1973 A
3814100 Nystrand et al. Jun 1974 A
3828784 Sabee Oct 1974 A
3840418 Sabee Oct 1974 A
3847702 Jones Nov 1974 A
3848594 Buell Nov 1974 A
3848595 Endres Nov 1974 A
3848597 Endres Nov 1974 A
3860003 Buell Jan 1975 A
3863637 MacDonald et al. Feb 1975 A
3882870 Hathaway May 1975 A
3884234 Taylor May 1975 A
3900032 Heurlen Aug 1975 A
3911173 Sprague, Jr. Oct 1975 A
3920017 Karami Nov 1975 A
3924626 Lee et al. Dec 1975 A
3926189 Taylor Dec 1975 A
3929134 Karami Dec 1975 A
3929135 Thompson Dec 1975 A
3930501 Schaar Jan 1976 A
3938523 Gilliland et al. Feb 1976 A
3968799 Schrading Jul 1976 A
3978861 Schaar Sep 1976 A
3981306 Krusko Sep 1976 A
3987794 Schaar Oct 1976 A
3995637 Schaar Dec 1976 A
3995640 Schaar Dec 1976 A
3999547 Hernandez Dec 1976 A
4014338 Schaar Mar 1977 A
4034760 Amirsakis Jul 1977 A
4055180 Karami Oct 1977 A
4074508 Reid Feb 1978 A
4079739 Whitehead Mar 1978 A
4084592 Tritsch Apr 1978 A
4100922 Hernandez Jul 1978 A
4232674 Melican Nov 1980 A
4257418 Hessner Mar 1981 A
4259220 Bunnelle et al. Mar 1981 A
4296750 Woon et al. Oct 1981 A
4315508 Bolick Feb 1982 A
4324246 Mullane et al. Apr 1982 A
4340706 Obayashi et al. Jul 1982 A
4341216 Obenour Jul 1982 A
4342314 Radel et al. Aug 1982 A
4360021 Stima Nov 1982 A
4381783 Elias May 1983 A
4388075 Mesek et al. Jun 1983 A
4410571 Korpman Oct 1983 A
4461621 Karami et al. Jul 1984 A
4463045 Ahr et al. Jul 1984 A
4469710 Rielley et al. Sep 1984 A
4475912 Coates Oct 1984 A
4490148 Beckeström Dec 1984 A
4507438 Obayashi et al. Mar 1985 A
4515595 Kievet et al. May 1985 A
4527990 Sigl Jul 1985 A
4541871 Obayashi et al. Sep 1985 A
4551191 Kock et al. Nov 1985 A
4573986 Minetola et al. Mar 1986 A
4578072 Lancaster Mar 1986 A
4578702 Campbell Mar 1986 A
4585448 Enloe Apr 1986 A
4585450 Rosch et al. Apr 1986 A
4589878 Mitrani May 1986 A
4596568 Flug Jun 1986 A
4601717 Blevins Jul 1986 A
4606964 Wideman Aug 1986 A
4609518 Curro et al. Sep 1986 A
4610678 Weisman et al. Sep 1986 A
4623342 Ito et al. Nov 1986 A
4624666 Derossett Nov 1986 A
4629643 Curro et al. Dec 1986 A
4636207 Buell Jan 1987 A
4641381 Heran et al. Feb 1987 A
4646510 McIntyre Mar 1987 A
4662875 Hirotsu et al. May 1987 A
4666983 Tsubakimoto et al. May 1987 A
4670011 Mesek Jun 1987 A
4670012 Johnson Jun 1987 A
4680030 Coates et al. Jul 1987 A
4681579 Toussant et al. Jul 1987 A
4681581 Coates Jul 1987 A
4681793 Linman et al. Jul 1987 A
4690680 Higgins Sep 1987 A
4695278 Lawson Sep 1987 A
4699622 Toussant et al. Oct 1987 A
4704115 Buell Nov 1987 A
4704116 Enloe Nov 1987 A
4710189 Lash Dec 1987 A
4720321 Smith Jan 1988 A
4731066 Korpman Mar 1988 A
4731070 Koci Mar 1988 A
RE32649 Brandt et al. Apr 1988 E
4741941 Englebert et al. May 1988 A
4747846 Boland et al. May 1988 A
4753648 Jackson Jun 1988 A
4773905 Molee Sep 1988 A
4784892 Storey et al. Nov 1988 A
4785996 Ziecker et al. Nov 1988 A
4787896 Houghton et al. Nov 1988 A
4795454 Dragoo Jan 1989 A
4800102 Takada Jan 1989 A
4802884 Fröidh et al. Feb 1989 A
4806408 Pierre et al. Feb 1989 A
4806598 Morman Feb 1989 A
4808176 Kielpikowski Feb 1989 A
4808178 Aziz Feb 1989 A
4826880 Lesniak et al. May 1989 A
4834735 Alemany et al. May 1989 A
4834740 Suzuki et al. May 1989 A
4834742 Wilson et al. May 1989 A
4838886 Kent Jun 1989 A
4842666 Werenicz Jun 1989 A
4846815 Scripps Jul 1989 A
4846825 Enloe et al. Jul 1989 A
4848815 Molloy Jul 1989 A
4861652 Lippert et al. Aug 1989 A
4869724 Scripps Sep 1989 A
4886697 Perdelwitz, Jr. et al. Dec 1989 A
4888231 Angstadt Dec 1989 A
4892528 Suzuki et al. Jan 1990 A
4892535 Bjornberg Jan 1990 A
4892536 DesMarais et al. Jan 1990 A
4894060 Nestegard Jan 1990 A
4894277 Akasaki Jan 1990 A
4904251 Igaue et al. Feb 1990 A
4900317 Buell Mar 1990 A
4909802 Ahr et al. Mar 1990 A
4909803 Aziz et al. Mar 1990 A
4936839 Molee Jun 1990 A
4940463 Leathers et al. Jul 1990 A
4940464 Van Gompel et al. Jul 1990 A
4946527 Battrell Aug 1990 A
4950264 Osborn Aug 1990 A
4960477 Mesek Oct 1990 A
4963140 Robertson et al. Oct 1990 A
4966809 Tanaka et al. Oct 1990 A
4968313 Sabee Nov 1990 A
4990147 Freeland Feb 1991 A
4994053 Lang Feb 1991 A
5006394 Baird Apr 1991 A
5019063 Marsan et al. May 1991 A
5019072 Polski May 1991 A
5021051 Hiuke Jun 1991 A
5030314 Lang Jul 1991 A
5032120 Freeland et al. Jul 1991 A
5034008 Breitkopf Jul 1991 A
5037416 Allen et al. Aug 1991 A
5071414 Elliott Aug 1991 A
5072687 Mitchell Dec 1991 A
5085654 Buell Feb 1992 A
5087255 Sims et al. Feb 1992 A
5092861 Nomura et al. Mar 1992 A
5102597 Roe et al. Apr 1992 A
5114420 Igaue et al. May 1992 A
5124188 Roe et al. Jun 1992 A
5135522 Fahrenkrug et al. Aug 1992 A
5137537 Herron et al. Aug 1992 A
D329697 Fahrenkrug et al. Sep 1992 S
5143679 Weber et al. Sep 1992 A
5147343 Kellenberger Sep 1992 A
5147345 Young et al. Sep 1992 A
5149334 Roe et al. Sep 1992 A
5149335 Kellenberger et al. Sep 1992 A
5151091 Glaug Sep 1992 A
5151092 Buell et al. Sep 1992 A
5156793 Buell et al. Oct 1992 A
5167653 Igaue et al. Dec 1992 A
5167897 Weber et al. Dec 1992 A
5175046 Nguyen Dec 1992 A
5180622 Berg et al. Jan 1993 A
5190563 Herron et al. Mar 1993 A
5190606 Merkatoris et al. Mar 1993 A
5204997 Suzuki et al. Apr 1993 A
5213817 Pelley May 1993 A
5221274 Buell et al. Jun 1993 A
5235515 Ungpiyakul et al. Aug 1993 A
5242436 Weil et al. Sep 1993 A
5246431 Minetola et al. Sep 1993 A
5246432 Suzuki et al. Sep 1993 A
5246433 Hasse et al. Sep 1993 A
5248309 Serbiak et al. Sep 1993 A
5260345 Desmarais et al. Nov 1993 A
5269775 Freeland et al. Dec 1993 A
5281683 Yano et al. Jan 1994 A
H1298 Ahr Apr 1994 H
5300565 Berg et al. Apr 1994 A
5312386 Correa et al. May 1994 A
5331059 Engelhardt et al. Jul 1994 A
5336552 Strack et al. Aug 1994 A
5348547 Payne et al. Sep 1994 A
5358500 LaVon et al. Oct 1994 A
5366782 Curro et al. Nov 1994 A
5382610 Harada et al. Jan 1995 A
5387207 Dyer et al. Feb 1995 A
5387208 Ashton et al. Feb 1995 A
5387209 Yamamoto et al. Feb 1995 A
5389095 Suzuki Feb 1995 A
5397316 Lavon et al. Mar 1995 A
5397317 Thomas Mar 1995 A
5399175 Glaug Mar 1995 A
5401792 Babu et al. Mar 1995 A
5409771 Dahmen et al. Apr 1995 A
H1440 New et al. May 1995 H
5411497 Tanzer et al. May 1995 A
5415644 Enloe May 1995 A
5425725 Tanzer et al. Jun 1995 A
5429630 Beal et al. Jul 1995 A
5433715 Tanzer et al. Jul 1995 A
5451219 Suzuki Sep 1995 A
5451442 Pieniak Sep 1995 A
5460622 Dragoo et al. Oct 1995 A
5460623 Emenaker et al. Oct 1995 A
5462541 Bruemmer et al. Oct 1995 A
5476458 Glaug et al. Dec 1995 A
5486166 Bishop et al. Jan 1996 A
5486167 Dragoo et al. Jan 1996 A
5490846 Ellis et al. Feb 1996 A
5492962 Lahrman et al. Feb 1996 A
5494622 Heath et al. Feb 1996 A
5499978 Buell et al. Mar 1996 A
5507736 Clear et al. Apr 1996 A
5507895 Suekane Apr 1996 A
5509915 Hanson et al. Apr 1996 A
5514104 Cole May 1996 A
5518801 Chappell et al. May 1996 A
5520674 Hines et al. May 1996 A
5522810 Allen, Jr. Jun 1996 A
5527300 Sauer Jun 1996 A
5531730 Dreier Jul 1996 A
5532323 Yano et al. Jul 1996 A
5542943 Sageser Aug 1996 A
5549592 Fries et al. Aug 1996 A
5549593 Ygge et al. Aug 1996 A
5549791 Herron et al. Aug 1996 A
5554145 Roe et al. Sep 1996 A
5559335 Zing et al. Sep 1996 A
5560878 Dragoo et al. Oct 1996 A
5562634 Flumene et al. Oct 1996 A
5562646 Goldman et al. Oct 1996 A
5569234 Buell et al. Oct 1996 A
5571096 Dobrin et al. Nov 1996 A
5574121 Irie et al. Nov 1996 A
5575783 Clear et al. Nov 1996 A
5580411 Nease et al. Dec 1996 A
5584829 Lavash et al. Dec 1996 A
5586979 Thomas Dec 1996 A
5591152 Buell et al. Jan 1997 A
5591155 Nishikawa et al. Jan 1997 A
5593399 Tanzer et al. Jan 1997 A
5599335 Goldman et al. Feb 1997 A
5601542 Melius et al. Feb 1997 A
5607414 Richards et al. Mar 1997 A
5607537 Johnson et al. Mar 1997 A
5607760 Roe Mar 1997 A
5609587 Roe Mar 1997 A
5609588 DiPalma et al. Mar 1997 A
5611879 Morman Mar 1997 A
5613959 Roessler et al. Mar 1997 A
5613960 Mizutani Mar 1997 A
5614283 Potnis et al. Mar 1997 A
5622589 Johnson et al. Apr 1997 A
5624423 Anjur Apr 1997 A
5624424 Saisaka et al. Apr 1997 A
5625222 Yoneda et al. Apr 1997 A
5607416 Yamamoto et al. May 1997 A
5626571 Young et al. May 1997 A
5628741 Buell et al. May 1997 A
5628845 Murray et al. May 1997 A
5635191 Roe et al. Jun 1997 A
5635271 Zafiroglu Jun 1997 A
5637106 Mitchell Jun 1997 A
5643238 Baker Jul 1997 A
5643243 Klemp Jul 1997 A
5643588 Roe et al. Jul 1997 A
5649914 Glaug Jul 1997 A
5650214 Anderson Jul 1997 A
H1674 Ames et al. Aug 1997 H
5658268 Johns et al. Aug 1997 A
5662634 Yamamoto et al. Sep 1997 A
5662638 Johnson et al. Sep 1997 A
5662758 Hamilton et al. Sep 1997 A
5669894 Goldman et al. Sep 1997 A
5674215 Ronnberg Oct 1997 A
5681300 Ahr Oct 1997 A
5683374 Yamamoto Nov 1997 A
5685874 Buell et al. Nov 1997 A
5690627 Clear et al. Nov 1997 A
5691035 Chappell et al. Nov 1997 A
5691036 Chappell et al. Nov 1997 A
5695488 Sosalla Dec 1997 A
5700254 McDowall et al. Dec 1997 A
5702376 Glaug Dec 1997 A
5714156 Schmidt et al. Feb 1998 A
5723087 Chappell et al. Mar 1998 A
5733275 Davis et al. Mar 1998 A
5749866 Roe et al. May 1998 A
5752947 Awolin May 1998 A
5756039 McFall et al. May 1998 A
H1732 Johnson Jun 1998 H
5762641 Bewick Sonntag et al. Jun 1998 A
5766388 Pelley Jun 1998 A
5766389 Brandon et al. Jun 1998 A
5772825 Schmitz Jun 1998 A
5776121 Roe et al. Jul 1998 A
5779831 Schmitz Jul 1998 A
5788684 Abuto et al. Aug 1998 A
5795345 Mizutani Aug 1998 A
5797892 Glaug Aug 1998 A
5797894 Cadieux et al. Aug 1998 A
5807365 Luceri Sep 1998 A
5810796 Kimura et al. Sep 1998 A
5810800 Hunter et al. Sep 1998 A
5814035 Gryskiewicz et al. Sep 1998 A
5820618 Roberts et al. Oct 1998 A
5827257 Fujioka Oct 1998 A
5830202 Bogdanski et al. Nov 1998 A
5833678 Ashton et al. Nov 1998 A
5837789 Stockhausen et al. Nov 1998 A
5840404 Graff Nov 1998 A
5843059 Niemeyer et al. Dec 1998 A
5846231 Fujioka et al. Dec 1998 A
5846232 Serbiak et al. Dec 1998 A
5849816 Suskind et al. Dec 1998 A
5851204 Mitzutani Dec 1998 A
5855572 Schmidt Jan 1999 A
5858013 Kling Jan 1999 A
5865823 Curro Feb 1999 A
5865824 Chen Feb 1999 A
5873868 Nakahata Feb 1999 A
5876391 Roe et al. Mar 1999 A
5879751 Bogdanski Mar 1999 A
5891118 Toyoshima Apr 1999 A
5891544 Chappell et al. Apr 1999 A
5897545 Kline et al. Apr 1999 A
5904673 Roe et al. May 1999 A
5925439 Haubach Jul 1999 A
5928184 Etheredge Jul 1999 A
5931825 Kuen et al. Aug 1999 A
5938648 Lavon et al. Aug 1999 A
5938650 Baer et al. Aug 1999 A
5941862 Haynes et al. Aug 1999 A
5944706 Palumbo et al. Aug 1999 A
5947949 Inoue et al. Sep 1999 A
5951536 Osborn, III et al. Sep 1999 A
5957908 Kline et al. Sep 1999 A
5968025 Roe et al. Oct 1999 A
5968029 Chappell et al. Oct 1999 A
5980500 Shimizu et al. Nov 1999 A
5981824 Luceri Nov 1999 A
5989236 Roe et al. Nov 1999 A
6004306 Robles et al. Dec 1999 A
6022430 Blenke et al. Feb 2000 A
6022431 Blenke et al. Feb 2000 A
6042673 Johnson et al. Mar 2000 A
6050984 Fujioka Apr 2000 A
6054631 Gent Apr 2000 A
6056732 Fujioka et al. May 2000 A
6060115 Borowski et al. May 2000 A
6068620 Chmielewski May 2000 A
6080909 Osterdahl et al. Jun 2000 A
6083210 Young et al. Jul 2000 A
6090994 Chen Jul 2000 A
6091336 Zand Jul 2000 A
6093474 Sironi Jul 2000 A
6099515 Sugito Aug 2000 A
6102892 Putzer et al. Aug 2000 A
6103814 Van Drongelen et al. Aug 2000 A
6107537 Elder et al. Aug 2000 A
6110157 Schmidt Aug 2000 A
6117121 Faulks et al. Sep 2000 A
6117803 Morman et al. Sep 2000 A
6120486 Toyoda et al. Sep 2000 A
6120487 Ashton Sep 2000 A
6120489 Johnson et al. Sep 2000 A
6120866 Arakawa et al. Sep 2000 A
6121509 Ashraf et al. Sep 2000 A
6129717 Fujioka et al. Oct 2000 A
6129720 Blenke et al. Oct 2000 A
6132411 Huber et al. Oct 2000 A
6139912 Onuschak Oct 2000 A
6143821 Houben Nov 2000 A
6152908 Widlund Nov 2000 A
6156023 Yoshioka Dec 2000 A
6156424 Taylor Dec 2000 A
6160197 Lassen Dec 2000 A
6165160 Suzuki et al. Dec 2000 A
6174302 Kumasaka Jan 2001 B1
6177606 Etheredge Jan 2001 B1
6177607 Blaney et al. Jan 2001 B1
6186996 Martin Feb 2001 B1
6210386 Inoue Apr 2001 B1
6210390 Karlsson Apr 2001 B1
6231556 Osborn, III May 2001 B1
6231566 Lai May 2001 B1
6238380 Sasaki May 2001 B1
6241716 Rönnberg Jun 2001 B1
6254294 Muhar Jul 2001 B1
6258996 Goldman Jul 2001 B1
6265488 Fujino et al. Jul 2001 B1
6290686 Tanzer et al. Sep 2001 B1
6306122 Narawa et al. Oct 2001 B1
6315765 Datta Nov 2001 B1
6319239 Daniels et al. Nov 2001 B1
6322552 Blenke et al. Nov 2001 B1
6325787 Roe et al. Dec 2001 B1
6326525 Hamajima Dec 2001 B1
6330735 Hahn et al. Dec 2001 B1
6334858 Rönnberg et al. Jan 2002 B1
6336922 Van Gompel et al. Jan 2002 B1
6340611 Shimizu Jan 2002 B1
6342715 Shimizu Jan 2002 B1
6402731 Suprise et al. Jan 2002 B1
6350332 Thomas et al. Feb 2002 B1
6368687 Joseph et al. Apr 2002 B1
6371948 Mizutani Apr 2002 B1
6372952 Lash et al. Apr 2002 B1
6375644 Mizutani Apr 2002 B2
6376034 Brander Apr 2002 B1
6383431 Dobrin et al. May 2002 B1
6383960 Everett et al. May 2002 B1
6394989 Mizutani May 2002 B2
6403857 Gross et al. Jun 2002 B1
6409883 Makolin Jun 2002 B1
6410820 McFall et al. Jun 2002 B1
6410822 Mizutani Jun 2002 B1
6402729 Boberg et al. Jul 2002 B1
6413248 Mizutani Jul 2002 B1
6413249 Turi et al. Jul 2002 B1
6414214 Engelhardt et al. Jul 2002 B1
6416502 Connelly et al. Jul 2002 B1
6416697 Venturino et al. Jul 2002 B1
6419667 Avalon et al. Jul 2002 B1
6423046 Fujioka et al. Jul 2002 B1
6423048 Suzuki et al. Jul 2002 B1
6423884 Oehmen Jul 2002 B1
6429350 Tanzer et al. Aug 2002 B1
6432094 Fujioka et al. Aug 2002 B1
6432098 Kline et al. Aug 2002 B1
6432099 Rönnberg Aug 2002 B2
6437214 Everett et al. Aug 2002 B1
6441268 Edwardsson Aug 2002 B1
6443933 Suzuki et al. Sep 2002 B1
6444064 Henry et al. Sep 2002 B1
6447496 Mizutani Sep 2002 B1
6458111 Onishi et al. Oct 2002 B1
6458877 Ahmed et al. Oct 2002 B1
6459016 Rosenfeld et al. Oct 2002 B1
6461034 Schaefer et al. Oct 2002 B1
6461342 Tanji et al. Oct 2002 B2
6461343 Schaefer et al. Oct 2002 B1
6472478 Funk et al. Oct 2002 B1
6475201 Saito et al. Nov 2002 B2
6494872 Suzuki et al. Dec 2002 B1
6494873 Karlsson et al. Dec 2002 B2
6500159 Carvalho Dec 2002 B1
6503233 Chen Jan 2003 B1
6503979 Funk et al. Jan 2003 B1
6506186 Roessler Jan 2003 B1
6506961 Levy Jan 2003 B1
6515195 Lariviere Feb 2003 B1
6517525 Berthou Feb 2003 B1
6518479 Graef Feb 2003 B1
6520947 Tilly et al. Feb 2003 B1
6521811 Lassen Feb 2003 B1
6521812 Graef Feb 2003 B1
6524294 Hilston et al. Feb 2003 B1
6525240 Graef Feb 2003 B1
6528698 Mizutani et al. Mar 2003 B2
6529860 Strumolo et al. Mar 2003 B1
6531025 Lender et al. Mar 2003 B1
6531027 Lender et al. Mar 2003 B1
6534149 Daley et al. Mar 2003 B1
6559081 Erspamer May 2003 B1
6559239 Riegel et al. May 2003 B1
6562168 Schmitt et al. May 2003 B1
6562192 Hamilton May 2003 B1
6569137 Suzuki et al. May 2003 B2
6573422 Rosenfeld Jun 2003 B1
6585713 LaMahieu et al. Jul 2003 B1
6585858 Otto et al. Jul 2003 B1
6602234 Klemp et al. Aug 2003 B2
6605070 Ludwig et al. Aug 2003 B2
6605172 Anderson et al. Aug 2003 B1
6605752 Magnusson et al. Aug 2003 B2
6610900 Tanzer Aug 2003 B1
6630054 Graef Oct 2003 B1
6632209 Chmielewski Oct 2003 B1
6632504 Gillespie et al. Oct 2003 B1
6645569 Cramer et al. Nov 2003 B2
6646180 Chmielewski Nov 2003 B1
6648869 Gillies et al. Nov 2003 B1
6648870 Itoh et al. Nov 2003 B2
6648871 Kusibojoska et al. Nov 2003 B2
6649807 Mizutani Nov 2003 B2
6649810 Minato et al. Nov 2003 B1
6652498 Glasgow Nov 2003 B1
6657015 Riegel et al. Dec 2003 B1
6657102 Furuya Dec 2003 B2
6667424 Hamilton Dec 2003 B1
6670522 Graef Dec 2003 B1
6673982 Chen Jan 2004 B1
6673983 Graef Jan 2004 B1
6673985 Mizutani Jan 2004 B2
6682515 Mizutani et al. Jan 2004 B1
6682516 Johnston Jan 2004 B2
6689115 Popp et al. Feb 2004 B1
6689934 Dodge, II et al. Feb 2004 B2
6695827 Chen Feb 2004 B2
6700034 Lindsay et al. Mar 2004 B1
6703538 Lassen Mar 2004 B2
6705465 Ling et al. Mar 2004 B2
6706129 Ando et al. Mar 2004 B2
6706943 Onishi Mar 2004 B2
6710224 Chmielewski et al. Mar 2004 B2
6710225 Everett et al. Mar 2004 B1
6716205 Popp et al. Apr 2004 B2
6716441 Roe et al. Apr 2004 B1
6717029 Baker Apr 2004 B2
6726668 Underhill et al. Apr 2004 B2
6726792 Johnson et al. Apr 2004 B1
6730387 Rezai et al. May 2004 B2
6734335 Graef May 2004 B1
6790798 Suzuki et al. Sep 2004 B1
6802834 Melius et al. Oct 2004 B2
6809158 Ikeuchi et al. Oct 2004 B2
6811642 Ochi Nov 2004 B2
6818083 Mcamish et al. Nov 2004 B2
6818166 Edwardson et al. Nov 2004 B2
6830800 Curro et al. Dec 2004 B2
6832905 Delzer et al. Dec 2004 B2
6840929 Kurata Jan 2005 B2
6846374 Popp Jan 2005 B2
6858771 Yoshimasa Feb 2005 B2
6863933 Cramer et al. Mar 2005 B2
6863960 Curro et al. Mar 2005 B2
6867345 Shimoe et al. Mar 2005 B2
6867346 Dopps Mar 2005 B1
6878433 Curro et al. Apr 2005 B2
6878647 Rezai Apr 2005 B1
6880211 Jackson et al. Apr 2005 B2
6891080 Minato May 2005 B2
6904865 Klofta Jun 2005 B2
6911574 Mizutani Jun 2005 B1
6923797 Shinohara et al. Aug 2005 B2
6923926 Walter et al. Aug 2005 B2
6926703 Sugito Aug 2005 B2
6929629 Drevik et al. Aug 2005 B2
6939914 Qin et al. Sep 2005 B2
6946585 Brown Sep 2005 B2
6953451 Berba Oct 2005 B2
6955733 Henry et al. Oct 2005 B2
6962578 Lavon Nov 2005 B1
6962645 Graef Nov 2005 B2
6965058 Raidel Nov 2005 B1
6969781 Graef Nov 2005 B2
6972010 Pesce et al. Dec 2005 B2
6972011 Maeda et al. Dec 2005 B2
6979564 Glucksmann et al. Dec 2005 B2
6982052 Daniels et al. Jan 2006 B2
7001167 Venturino Feb 2006 B2
7014632 Takino et al. Mar 2006 B2
7015370 Watanabe Mar 2006 B2
7037299 Turi et al. May 2006 B2
7037571 Fish et al. May 2006 B2
7048726 Kusagawa et al. May 2006 B2
7056311 Kinoshita Jun 2006 B2
7067711 Kinoshita et al. Jun 2006 B2
7073373 La Fortune Jul 2006 B2
7078583 Kudo Jul 2006 B2
7090665 Ohashi Aug 2006 B2
7108759 You Sep 2006 B2
7108916 Ehrnsperger et al. Sep 2006 B2
7112621 Rohrbaugh et al. Sep 2006 B2
7122713 Komatsu Oct 2006 B2
7125470 Graef Oct 2006 B2
7132585 Kudo Nov 2006 B2
7147628 Drevik Dec 2006 B2
7150729 Shimada Dec 2006 B2
7154019 Mishima et al. Dec 2006 B2
7160281 Leminh et al. Jan 2007 B2
7163528 Christon et al. Jan 2007 B2
7166190 Graef Jan 2007 B2
7169136 Otsubo Jan 2007 B2
7183360 Daniel et al. Feb 2007 B2
7189888 Wang et al. Mar 2007 B2
7196241 Kinoshita Mar 2007 B2
7199211 Popp et al. Apr 2007 B2
7204830 Mishima Apr 2007 B2
7207978 Takino Apr 2007 B2
7219403 Miyamoto et al. May 2007 B2
7220251 Otsubo et al. May 2007 B2
7241280 Christen et al. Jul 2007 B2
7250481 Jaworek et al. Jul 2007 B2
7252657 Mishima Aug 2007 B2
7265258 Hamilton Sep 2007 B2
7270651 Adams et al. Sep 2007 B2
7285178 Mischler et al. Oct 2007 B2
RE39919 Dodge, II et al. Nov 2007 E
7306582 Adams et al. Dec 2007 B2
7311696 Christen et al. Dec 2007 B2
7311968 Ehrnsperger et al. Dec 2007 B2
7312372 Miyama Dec 2007 B2
7318820 LaVon et al. Jan 2008 B2
7329244 Otsubo Feb 2008 B2
7329246 Kinoshita Feb 2008 B2
7335810 Yoshimasa et al. Feb 2008 B2
7377914 LaVon May 2008 B2
7429689 Chen Sep 2008 B2
7435244 Schroer et al. Oct 2008 B2
7465373 Graef Dec 2008 B2
7500969 Mishima Mar 2009 B2
7504552 Tamura Mar 2009 B2
7521109 Suzuki et al. Apr 2009 B2
7521587 Busam et al. Apr 2009 B2
7537832 Carlucci et al. May 2009 B2
7547815 Ohashi Jun 2009 B2
7550646 Tamura Jun 2009 B2
7563257 Nakajima Jul 2009 B2
7588561 Kenmochi Sep 2009 B2
7594904 Rosenfeld Sep 2009 B2
7598428 Gustavsson et al. Oct 2009 B2
7625363 Yoshimasa Dec 2009 B2
7641642 Murai et al. Jan 2010 B2
7648490 Kuroda Jan 2010 B2
7652111 Hermeling et al. Jan 2010 B2
7666173 Mishima Feb 2010 B2
7666174 Kawakami et al. Feb 2010 B2
7686790 Rasmussen et al. Mar 2010 B2
7687596 Hermeling et al. Mar 2010 B2
7695461 Rosenfeld Apr 2010 B2
7696402 Nishikawa Apr 2010 B2
7708725 Tamagawa May 2010 B2
7717150 Manabe May 2010 B2
7718844 Olson May 2010 B2
7722587 Suzuki et al. May 2010 B2
7722590 Tsuji May 2010 B2
7727217 Hancock-Cooke Jun 2010 B2
7736351 Nigam Jun 2010 B2
7737324 LaVon et al. Jun 2010 B2
7744576 Busam et al. Jun 2010 B2
7744578 Tanio et al. Jun 2010 B2
7750203 Busam et al. Jul 2010 B2
7754822 Daniel et al. Jul 2010 B2
7754940 Brisebois Jul 2010 B2
7759540 Litvay et al. Jul 2010 B2
7763004 Beck Jul 2010 B2
7767875 Olson Aug 2010 B2
7767876 Davis et al. Aug 2010 B2
7767878 Suzuki Aug 2010 B2
7772420 Hermeling et al. Aug 2010 B2
7786341 Schneider et al. Aug 2010 B2
7795492 Vartiainen Sep 2010 B2
7803145 Rosenfeld Sep 2010 B2
7825291 Elfsberg et al. Nov 2010 B2
7838722 Blessing et al. Nov 2010 B2
7850672 Guidotti et al. Dec 2010 B2
7851667 Becker et al. Dec 2010 B2
7855314 Hanao Dec 2010 B2
7857797 Kudo Dec 2010 B2
7858842 Komatsu Dec 2010 B2
7884259 Hanao Feb 2011 B2
7888549 Jansson et al. Feb 2011 B2
7910797 Nandrea Mar 2011 B2
7931636 LaVon et al. Apr 2011 B2
7935207 Zhao May 2011 B2
7935861 Suzuki May 2011 B2
7938813 Wang et al. May 2011 B2
7942858 Francoeur May 2011 B2
7951126 Nanjyo May 2011 B2
7959620 Miura et al. Jun 2011 B2
7982091 Konawa Jul 2011 B2
7993319 Sperl Aug 2011 B2
8017827 Hundorf et al. Sep 2011 B2
8029486 Nakajima Oct 2011 B2
8034991 Bruzadin et al. Oct 2011 B2
8039684 Guidotti et al. Oct 2011 B2
8052454 Polnyi Nov 2011 B2
8057620 Perego et al. Nov 2011 B2
8109915 Shimoe Feb 2012 B2
8124828 Kline et al. Feb 2012 B2
8133212 Takada Mar 2012 B2
8148598 Tsang et al. Apr 2012 B2
8163124 Moriura et al. Apr 2012 B2
8167862 Digiacomantonio et al. May 2012 B2
8173858 Kuroda May 2012 B2
8178747 Venturino et al. May 2012 B2
8183430 Hakansson et al. May 2012 B2
8186296 Brown et al. May 2012 B2
8187239 LaVon et al. May 2012 B2
8187240 Busam et al. May 2012 B2
8198506 Venturino et al. Jun 2012 B2
8211815 Baker Jul 2012 B2
8236715 Schmidt et al. Aug 2012 B2
8237012 Miyama Aug 2012 B2
8246594 Sperl Aug 2012 B2
8258367 Lawson et al. Sep 2012 B2
8268424 Suzuki Sep 2012 B1
8273943 Noda Sep 2012 B2
8282617 Kaneda Oct 2012 B2
8283516 Litvay Oct 2012 B2
8317766 Naoto Nov 2012 B2
8317768 Larsson Nov 2012 B2
8319005 Becker et al. Nov 2012 B2
8343123 Noda Jan 2013 B2
8343296 Blessing et al. Jan 2013 B2
8360977 Marttila Jan 2013 B2
8361047 Mukai Jan 2013 B2
8377025 Nakajima Feb 2013 B2
8450555 Nahn et al. May 2013 B2
8496637 Hundorf et al. Jul 2013 B2
8519213 Venturino et al. Aug 2013 B2
8524355 Nakaoka Sep 2013 B2
8552252 Hundorf et al. Oct 2013 B2
8568566 Jackels et al. Oct 2013 B2
8569571 Kline et al. Oct 2013 B2
8581019 Carlucci et al. Nov 2013 B2
8603058 Sprerl et al. Dec 2013 B2
8604270 Venturino et al. Dec 2013 B2
8633347 Bianco et al. Jan 2014 B2
8664468 Lawson et al. Mar 2014 B2
8674170 Busam et al. Mar 2014 B2
8734417 LaVon et al. May 2014 B2
8766031 Becker et al. Jul 2014 B2
8772570 Kawakami et al. Jul 2014 B2
8784594 Blessing et al. Jul 2014 B2
8785715 Wright et al. Jul 2014 B2
8791318 Becker et al. Jul 2014 B2
8936584 Zander et al. Jan 2015 B2
9056034 Akiyama Jun 2015 B2
20010007065 Blanchard Jul 2001 A1
20010008964 Kurata et al. Jul 2001 A1
20010016548 Kugler et al. Aug 2001 A1
20010020157 Mizutani Sep 2001 A1
20010037101 Allan et al. Nov 2001 A1
20010044610 Kim Nov 2001 A1
20020007167 Dan Jan 2002 A1
20020007169 Graef Jan 2002 A1
20020016122 Curro et al. Feb 2002 A1
20020016579 Stenberg Feb 2002 A1
20020045881 Kusibojoska et al. Apr 2002 A1
20020056516 Ochi May 2002 A1
20020058919 Hamilton et al. May 2002 A1
20020062112 Mizutani May 2002 A1
20020062115 Wada et al. May 2002 A1
20020062116 Mizutani et al. May 2002 A1
20020065498 Ohashi May 2002 A1
20020072471 Ikeuchi et al. Jun 2002 A1
20020082575 Dan Jun 2002 A1
20020087139 Popp et al. Jul 2002 A1
20020095127 Fish et al. Jul 2002 A1
20020102392 Fish Aug 2002 A1
20020115969 Maeda et al. Aug 2002 A1
20020123728 Graef et al. Sep 2002 A1
20020123848 Schneiderman et al. Sep 2002 A1
20020151634 Rohrbaugh et al. Oct 2002 A1
20020151861 Klemp et al. Oct 2002 A1
20020173767 Popp et al. Nov 2002 A1
20020192366 Cramer et al. Dec 2002 A1
20020197695 Glucksmann et al. Dec 2002 A1
20030036741 Abba et al. Feb 2003 A1
20030078553 Wada et al. Apr 2003 A1
20030084983 Rangachari et al. May 2003 A1
20030088223 Vogt et al. May 2003 A1
20030105190 Diehl et al. Jun 2003 A1
20030109839 Costae et al. Jun 2003 A1
20030114811 Christen et al. Jun 2003 A1
20030114816 Underhill Jun 2003 A1
20030114818 Benecke et al. Jun 2003 A1
20030115969 Koyano et al. Jun 2003 A1
20030120235 Boulanger Jun 2003 A1
20030120249 Wulz et al. Jun 2003 A1
20030135176 Delzer et al. Jul 2003 A1
20030135181 Chen et al. Jul 2003 A1
20030135182 Woon et al. Jul 2003 A1
20030139712 Dodge Jul 2003 A1
20030139715 Dodge Jul 2003 A1
20030139718 Graef Jul 2003 A1
20030144642 Dopps Jul 2003 A1
20030144644 Murai et al. Jul 2003 A1
20030148684 Cramer et al. Aug 2003 A1
20030148694 Ghiam Aug 2003 A1
20030158530 Diehl et al. Aug 2003 A1
20030158531 Chmielewski Aug 2003 A1
20030158532 Magee et al. Aug 2003 A1
20030167045 Graef Sep 2003 A1
20030171727 Graef Sep 2003 A1
20030208175 Gross Nov 2003 A1
20030225385 Glaug Dec 2003 A1
20030233082 Kline et al. Dec 2003 A1
20030236512 Baker Dec 2003 A1
20040019338 Litvay et al. Jan 2004 A1
20040022998 Miyamoto et al. Feb 2004 A1
20040033750 Everett Feb 2004 A1
20040059018 Gagliardi Mar 2004 A1
20040063367 Dodge Apr 2004 A1
20040064113 Erdman Apr 2004 A1
20040064115 Arora Apr 2004 A1
20040064116 Arora Apr 2004 A1
20040064125 Justmann et al. Apr 2004 A1
20040065420 Graef Apr 2004 A1
20040082928 Pesce et al. Apr 2004 A1
20040097895 Busam et al. May 2004 A1
20040122411 Hancock-Cooke Jun 2004 A1
20040127131 Potnis Jul 2004 A1
20040127871 Odorzynski Jul 2004 A1
20040127872 Petryk Jul 2004 A1
20040134596 Rosati et al. Jul 2004 A1
20040138633 Mishima et al. Jul 2004 A1
20040147890 Nakahata et al. Jul 2004 A1
20040158212 Ponomarenko et al. Aug 2004 A1
20040162536 Becker et al. Aug 2004 A1
20040167486 Busam et al. Aug 2004 A1
20040167489 Kellenberger et al. Aug 2004 A1
20040170813 Digiacomantonio et al. Sep 2004 A1
20040193127 Hansson Sep 2004 A1
20040215160 Chmielewski Oct 2004 A1
20040220541 Suzuki et al. Nov 2004 A1
20040225271 Datta et al. Nov 2004 A1
20040231065 Daniel et al. Nov 2004 A1
20040236299 Tsang et al. Nov 2004 A1
20040236455 Woltman et al. Nov 2004 A1
20040249355 Tanio et al. Dec 2004 A1
20040260259 Baker Dec 2004 A1
20050001929 Ochial et al. Jan 2005 A1
20050004543 Schroer et al. Jan 2005 A1
20050004548 Otsubo et al. Jan 2005 A1
20050008839 Cramer et al. Jan 2005 A1
20050018258 Miyagi Jan 2005 A1
20050038401 Suzuki et al. Feb 2005 A1
20050070867 Beruda et al. Mar 2005 A1
20050085784 LeMinh et al. Apr 2005 A1
20050090789 Graef Apr 2005 A1
20050101929 Waksmundzki et al. May 2005 A1
20050137543 Underhill et al. Jun 2005 A1
20050148258 Chakravarty Jul 2005 A1
20050148961 Sosalla et al. Jul 2005 A1
20050148990 Shimoe Jul 2005 A1
20050154363 Minato Jul 2005 A1
20050159720 Gentilcore Jul 2005 A1
20050165208 Popp et al. Jul 2005 A1
20050171499 Nigam et al. Aug 2005 A1
20050176910 Jaworek et al. Aug 2005 A1
20050203475 LaVon et al. Sep 2005 A1
20050215752 Popp et al. Sep 2005 A1
20050217791 Costello et al. Oct 2005 A1
20050229543 Tippey Oct 2005 A1
20050234414 Liu et al. Oct 2005 A1
20050245684 Daniel et al. Nov 2005 A1
20050288645 LaVon Dec 2005 A1
20050288646 LaVon Dec 2005 A1
20060004334 Schlinz Jan 2006 A1
20060021695 Blessing et al. Feb 2006 A1
20060024433 Blessing et al. Feb 2006 A1
20060069367 Waksmundzki et al. Mar 2006 A1
20060069371 Ohashi et al. Mar 2006 A1
20060073969 Torli et al. Apr 2006 A1
20060081348 Graef Apr 2006 A1
20060129114 Mason et al. Jun 2006 A1
20060142724 Watanabe Jun 2006 A1
20060155057 Hermeling et al. Jul 2006 A1
20060155254 Sanz et al. Jul 2006 A1
20060167215 Hermeling et al. Jul 2006 A1
20060177647 Schmidt et al. Aug 2006 A1
20060178071 Schmidt et al. Aug 2006 A1
20060184146 Suzuki Aug 2006 A1
20060184149 Kasai et al. Aug 2006 A1
20060189954 Kudo Aug 2006 A1
20060202380 Bentley Sep 2006 A1
20060206091 Cole Sep 2006 A1
20060211828 Daniel et al. Sep 2006 A1
20060240229 Ehrnsperger et al. Oct 2006 A1
20060264860 Beck Nov 2006 A1
20060264861 Lavon et al. Nov 2006 A1
20060271010 LaVon et al. Nov 2006 A1
20070027436 Nakagawa et al. Feb 2007 A1
20070032770 Lavon et al. Feb 2007 A1
20070043191 Hermeling et al. Feb 2007 A1
20070043330 Lankhof et al. Feb 2007 A1
20070049892 Lord et al. Mar 2007 A1
20070049897 LaVon et al. Mar 2007 A1
20070073253 Miyama Mar 2007 A1
20070078422 Glaug Apr 2007 A1
20070088308 Ehrnsperger et al. Apr 2007 A1
20070093164 Nakaoka Apr 2007 A1
20070093767 Carlucci et al. Apr 2007 A1
20070100307 Nomoto May 2007 A1
20070118087 Flohr et al. May 2007 A1
20070123834 McDowall et al. May 2007 A1
20070156108 Becker et al. Jul 2007 A1
20070156110 Thyfault Jul 2007 A1
20070167928 Becker et al. Jul 2007 A1
20070179464 Becker et al. Aug 2007 A1
20070179469 Takahashi et al. Aug 2007 A1
20070191798 Glaug Aug 2007 A1
20070219521 Hird et al. Sep 2007 A1
20070219523 Bruun Sep 2007 A1
20070244455 Hansson Oct 2007 A1
20070246147 Venturino et al. Oct 2007 A1
20070255245 Asp et al. Nov 2007 A1
20070282288 Noda Dec 2007 A1
20070282290 Cole Dec 2007 A1
20070282291 Cole Dec 2007 A1
20080027402 Schmidt et al. Jan 2008 A1
20080032035 Schmidt et al. Feb 2008 A1
20080091159 Carlucci et al. Apr 2008 A1
20080119810 Kuroda May 2008 A1
20080125735 Busam et al. May 2008 A1
20080132864 Lawson et al. Jun 2008 A1
20080208154 Oetjen et al. Aug 2008 A1
20080221538 Zhao Sep 2008 A1
20080221539 Zhao Sep 2008 A1
20080228158 Sue et al. Sep 2008 A1
20080262459 Kamoto Oct 2008 A1
20080268194 Kim et al. Oct 2008 A1
20080274227 Boatman et al. Nov 2008 A1
20080281287 Marcelo Nov 2008 A1
20080294140 Ecker et al. Nov 2008 A1
20080312617 Hundorf et al. Dec 2008 A1
20080312618 Hundorf et al. Dec 2008 A1
20080312619 Hudorf et al. Dec 2008 A1
20080312620 Ashton et al. Dec 2008 A1
20080312621 Hundorf et al. Dec 2008 A1
20080312622 Hundorf et al. Dec 2008 A1
20080312623 Hundorf et al. Dec 2008 A1
20080312624 Hundorf et al. Dec 2008 A1
20080312625 Hundorf et al. Dec 2008 A1
20080312627 Takeuchi Dec 2008 A1
20080312628 Hundorf et al. Dec 2008 A1
20090023848 Ahmed et al. Jan 2009 A1
20090056867 Moriura et al. Mar 2009 A1
20090062760 Wright Mar 2009 A1
20090112173 Bissah Apr 2009 A1
20090112175 Bissah Apr 2009 A1
20090157022 Macdonald Jun 2009 A1
20090192035 Stueven et al. Jul 2009 A1
20090240220 Macdonald Sep 2009 A1
20090247977 Takeuchi Oct 2009 A1
20090258994 Stueven et al. Oct 2009 A1
20090270825 Wciorka et al. Oct 2009 A1
20090298963 Matsumoto et al. Dec 2009 A1
20090299312 Macdonald Dec 2009 A1
20090306618 Kudo Dec 2009 A1
20090318884 Meyer et al. Dec 2009 A1
20090326494 Uchida et al. Dec 2009 A1
20100051166 Hundorf et al. Mar 2010 A1
20100062165 Suzuki Mar 2010 A1
20100062934 Suzuki Mar 2010 A1
20100063470 Suzuki Mar 2010 A1
20100068520 Stueven et al. Mar 2010 A1
20100100065 Bianco Apr 2010 A1
20100115237 Brewer et al. May 2010 A1
20100121296 Noda May 2010 A1
20100137773 Gross Jun 2010 A1
20100137823 Corneliusson Jun 2010 A1
20100198179 Noda Aug 2010 A1
20100228210 Busam et al. Sep 2010 A1
20100241096 LaVon et al. Sep 2010 A1
20100241097 Nigam et al. Sep 2010 A1
20100262099 Klofta Oct 2010 A1
20100262104 Carlucci et al. Oct 2010 A1
20100274208 Gabrielii Oct 2010 A1
20100274210 Noda Oct 2010 A1
20100312208 Bond et al. Dec 2010 A1
20100324521 Mukai Dec 2010 A1
20100324523 Mukai Dec 2010 A1
20110041999 Hundorf et al. Feb 2011 A1
20110060301 Nishikawa et al. Mar 2011 A1
20110060303 Bissah Mar 2011 A1
20110066127 Kuwano Mar 2011 A1
20110071486 Harada Mar 2011 A1
20110092944 Sagisaka Apr 2011 A1
20110112498 Nhan et al. May 2011 A1
20110125120 Nishitani May 2011 A1
20110130732 Jackels et al. Jun 2011 A1
20110130737 Sagisaka Jun 2011 A1
20110137276 Yoshikawa Jun 2011 A1
20110144602 Long Jun 2011 A1
20110144604 Noda Jun 2011 A1
20110144606 Nandrea Jun 2011 A1
20110152813 Ellingson Jun 2011 A1
20110166540 Yang et al. Jul 2011 A1
20110172630 Nomoto Jul 2011 A1
20110174430 Zhao Jul 2011 A1
20110208147 Kawakami et al. Aug 2011 A1
20110250413 Lu et al. Oct 2011 A1
20110268932 Catalan et al. Nov 2011 A1
20110274834 Brown et al. Nov 2011 A1
20110288513 Hundorf et al. Nov 2011 A1
20110288514 Kuroda Nov 2011 A1
20110295222 Becker et al. Dec 2011 A1
20110319846 Rinnert et al. Dec 2011 A1
20110319848 McKiernan et al. Dec 2011 A1
20110319851 Kudo Dec 2011 A1
20120004633 R Marcelo Jan 2012 A1
20120016326 Brennan et al. Jan 2012 A1
20120022479 Cotton Jan 2012 A1
20120035566 Sagisaka Feb 2012 A1
20120035576 Ichikawa Feb 2012 A1
20120064792 Bauduin Mar 2012 A1
20120071848 Zhang Mar 2012 A1
20120165771 Ruman et al. Jun 2012 A1
20120165776 McGregor et al. Jun 2012 A1
20120175056 Tsang Jul 2012 A1
20120184934 Venturino Jul 2012 A1
20120232514 Baker Sep 2012 A1
20120238977 Oku Sep 2012 A1
20120253306 Otsubo Oct 2012 A1
20120256750 Novak Oct 2012 A1
20120271262 Venturino Oct 2012 A1
20120312491 Jackels et al. Dec 2012 A1
20120316046 Jackels et al. Dec 2012 A1
20120316523 Hippe et al. Dec 2012 A1
20120316526 Rosati et al. Dec 2012 A1
20120316527 Rosati Dec 2012 A1
20120316528 Kreuzer et al. Dec 2012 A1
20120316529 Kreuzer et al. Dec 2012 A1
20120323195 Ehrnsperger et al. Dec 2012 A1
20120323201 Bissah Dec 2012 A1
20120323202 Bissah Dec 2012 A1
20130035656 Moriya Feb 2013 A1
20130041334 Prioleau Feb 2013 A1
20130178811 Kikuchi et al. Jul 2013 A1
20130211354 Tsuji et al. Aug 2013 A1
20130211358 Kikkawa et al. Aug 2013 A1
20130218115 Katsuragawa et al. Aug 2013 A1
20130226119 Katsuragawa et al. Aug 2013 A1
20130226120 Van De Maele Aug 2013 A1
20130310784 Bryant et al. Nov 2013 A1
20140005622 Wirtz et al. Jan 2014 A1
20140005623 Wirtz et al. Jan 2014 A1
20140027066 Jackels et al. Jan 2014 A1
20140039437 Van De Maele Feb 2014 A1
20140045683 Loick et al. Feb 2014 A1
20140135726 Busam et al. May 2014 A1
20140142531 Sasayama et al. May 2014 A1
20140163500 Roe et al. Jun 2014 A1
20140163501 Ehrnsperger et al. Jun 2014 A1
20140163502 Arizti et al. Jun 2014 A1
20140163503 Arizti et al. Jun 2014 A1
20140163506 Roe et al. Jun 2014 A1
20140163511 Roe et al. Jun 2014 A1
20140171893 Lawson et al. Jun 2014 A1
20140318694 Blessing et al. Oct 2014 A1
20140324007 Hundorf et al. Oct 2014 A1
20140324008 Hundorf et al. Oct 2014 A1
20150065986 Blessing et al. Mar 2015 A1
20150080837 Rosati et al. Mar 2015 A1
20150080839 Tapp et al. Mar 2015 A1
20150250662 Isele et al. Sep 2015 A1
Foreign Referenced Citations (539)
Number Date Country
2001370 Apr 1990 CA
2291997 Jun 2000 CA
2308961 Nov 2000 CA
2487027 Dec 2003 CA
2561521 Mar 2007 CA
2630713 Nov 2008 CA
2636673 Jan 2009 CA
2712563 Aug 2010 CA
2702001 Oct 2010 CA
1238171 Dec 1999 CN
2362468 Feb 2000 CN
1371671 Feb 2001 CN
2527254 Dec 2002 CN
2535020 Feb 2003 CN
2548609 May 2003 CN
1539391 Oct 2004 CN
1939242 Apr 2007 CN
101292930 Oct 2008 CN
201263750 Jul 2009 CN
201591689 Sep 2010 CN
201855366 Jun 2011 CN
3205931 Sep 1983 DE
3608114 Sep 1987 DE
19732499 Feb 1999 DE
10204937 Aug 2003 DE
083022 Jul 1983 EP
149880 Jul 1985 EP
0149880 Jul 1985 EP
203289 Dec 1986 EP
0203289 Dec 1986 EP
0206208 Dec 1986 EP
209561 Jan 1987 EP
297411 Jan 1989 EP
304957 Mar 1989 EP
374542 Jun 1990 EP
394274 Oct 1990 EP
0403832 Dec 1990 EP
481322 Apr 1992 EP
530438 Mar 1993 EP
547847 Jun 1993 EP
555346 Aug 1993 EP
559476 Sep 1993 EP
591647 Apr 1994 EP
597273 May 1994 EP
601610 Jun 1994 EP
632068 Jan 1995 EP
0640330 Mar 1995 EP
0668066 Sep 1995 EP
685214 Dec 1995 EP
687453 Dec 1995 EP
0689817 Jan 1996 EP
0691133 Jan 1996 EP
0700673 Mar 1996 EP
0394274 Jul 1996 EP
724418 Aug 1996 EP
725613 Aug 1996 EP
725615 Aug 1996 EP
725616 Aug 1996 EP
758543 Feb 1997 EP
0761194 Mar 1997 EP
769284 Apr 1997 EP
0781537 Jul 1997 EP
783877 Jul 1997 EP
787472 Aug 1997 EP
788874 Aug 1997 EP
796068 Sep 1997 EP
799004 Oct 1997 EP
822794 Feb 1998 EP
826351 Mar 1998 EP
844861 Jun 1998 EP
0737055 Aug 1998 EP
863733 Sep 1998 EP
971751 Sep 1998 EP
0875224 Nov 1998 EP
875224 Nov 1998 EP
880955 Dec 1998 EP
891758 Jan 1999 EP
0893115 Jan 1999 EP
0724418 Mar 1999 EP
0725613 Mar 1999 EP
0725616 Mar 1999 EP
904755 Mar 1999 EP
0916327 May 1999 EP
925769 Jun 1999 EP
933074 Aug 1999 EP
937736 Aug 1999 EP
941157 Sep 1999 EP
947549 Oct 1999 EP
951887 Oct 1999 EP
0951890 Oct 1999 EP
2295493 Oct 1999 EP
2305749 Oct 1999 EP
2330152 Oct 1999 EP
953326 Nov 1999 EP
0978263 Feb 2000 EP
985397 Mar 2000 EP
0778762 Apr 2000 EP
1005847 Jun 2000 EP
1008333 Jun 2000 EP
1013252 Jun 2000 EP
1018999 Jul 2000 EP
1019002 Jul 2000 EP
1019003 Jul 2000 EP
1022008 Jul 2000 EP
1023884 Aug 2000 EP
1053729 Nov 2000 EP
1059072 Dec 2000 EP
1063954 Jan 2001 EP
1071388 Jan 2001 EP
1078618 Feb 2001 EP
1088537 Apr 2001 EP
0796068 May 2001 EP
752892 Jul 2001 EP
1116479 Jul 2001 EP
0790839 Aug 2001 EP
1132069 Sep 2001 EP
1173128 Jan 2002 EP
1175194 Jan 2002 EP
1184018 Mar 2002 EP
1192312 Apr 2002 EP
1196122 Apr 2002 EP
1199059 Apr 2002 EP
1199327 Apr 2002 EP
1208824 May 2002 EP
0793469 Jun 2002 EP
1210925 Jun 2002 EP
1224922 Jul 2002 EP
1225857 Jul 2002 EP
1253231 Oct 2002 EP
1262531 Dec 2002 EP
1263374 Dec 2002 EP
0737056 Jan 2003 EP
1275358 Jan 2003 EP
1275361 Jan 2003 EP
1293187 Mar 2003 EP
1304986 May 2003 EP
1332742 Aug 2003 EP
1339368 Sep 2003 EP
1374817 Jan 2004 EP
1388334 Feb 2004 EP
1402863 Mar 2004 EP
962208 Aug 2004 EP
1447066 Aug 2004 EP
1447067 Aug 2004 EP
1460987 Sep 2004 EP
963749 Nov 2004 EP
1495739 Jan 2005 EP
1524955 Apr 2005 EP
1920743 Apr 2005 EP
1541103 Jun 2005 EP
1551344 Jul 2005 EP
1586289 Oct 2005 EP
1588723 Oct 2005 EP
1605882 Dec 2005 EP
1609448 Dec 2005 EP
1621166 Feb 2006 EP
1621167 Feb 2006 EP
1632206 Mar 2006 EP
1642556 Apr 2006 EP
1403419 May 2006 EP
1656162 May 2006 EP
1669046 Jun 2006 EP
1688114 Aug 2006 EP
2314265 Aug 2006 EP
1723939 Nov 2006 EP
1738727 Jan 2007 EP
1754461 Feb 2007 EP
1787611 May 2007 EP
1813238 Aug 2007 EP
2008626 Dec 2008 EP
2055279 May 2009 EP
2093049 Aug 2009 EP
2130522 Dec 2009 EP
1621165 Apr 2010 EP
2444046 Apr 2012 EP
2532328 Dec 2012 EP
2532329 Dec 2012 EP
2532332 Dec 2012 EP
2679210 Jan 2014 EP
2740449 Jun 2014 EP
2740450 Jun 2014 EP
2740452 Jun 2014 EP
2213491 Aug 2004 ES
2566631 Jan 1986 FR
2583377 Dec 1986 FR
2612770 Sep 1988 FR
2810234 Dec 2001 FR
1333081 Aug 1971 GB
1307441 Feb 1973 GB
1513055 Jun 1978 GB
2101468 Jan 1983 GB
2170108 Jul 1986 GB
2262873 Jul 1993 GB
2288540 Jun 1994 GB
2354449 Mar 2001 GB
2452260 Oct 2007 GB
851769 Nov 1985 GR
0984KOL1999 Oct 2005 IN
212479 Mar 2007 IN
208543 Aug 2007 IN
0980MUM2009 Jun 2009 IN
5572928 May 1980 JP
598322 Jan 1984 JP
630148323 Sep 1988 JP
2107250 Apr 1990 JP
03224481 Oct 1991 JP
04122256 Apr 1992 JP
04341368 Nov 1992 JP
06191505 Jul 1994 JP
06269475 Sep 1994 JP
07124193 May 1995 JP
08215629 Aug 1996 JP
10328232 Dec 1998 JP
11033056 Feb 1999 JP
11318980 Nov 1999 JP
11320742 Nov 1999 JP
2000232985 Aug 2000 JP
2000238161 Sep 2000 JP
2001037810 Feb 2001 JP
2001046435 Feb 2001 JP
2001120597 May 2001 JP
2001158074 Jun 2001 JP
2001178768 Jul 2001 JP
2001198157 Jul 2001 JP
2001224626 Aug 2001 JP
2001277394 Oct 2001 JP
03420481 Nov 2001 JP
2001321397 Nov 2001 JP
2001353174 Dec 2001 JP
2002052042 Feb 2002 JP
2002065718 Mar 2002 JP
2002113800 Apr 2002 JP
2002165832 Jun 2002 JP
2002165836 Jun 2002 JP
2002178429 Jun 2002 JP
2002272769 Sep 2002 JP
2002320641 Nov 2002 JP
2002325792 Nov 2002 JP
2002325799 Nov 2002 JP
2002369841 Dec 2002 JP
2003126140 May 2003 JP
2003153955 May 2003 JP
2003265523 Sep 2003 JP
2003265524 Sep 2003 JP
2003275237 Sep 2003 JP
2004089269 Mar 2004 JP
03566012 Jun 2004 JP
03568146 Jun 2004 JP
03616077 Nov 2004 JP
2004337314 Dec 2004 JP
2004337385 Dec 2004 JP
2004350864 Dec 2004 JP
03640475 Jan 2005 JP
2005000312 Jan 2005 JP
03660816 Mar 2005 JP
03676219 May 2005 JP
03688403 Jun 2005 JP
03705943 Aug 2005 JP
03719819 Sep 2005 JP
03724963 Sep 2005 JP
03725008 Sep 2005 JP
03737376 Nov 2005 JP
2006014792 Jan 2006 JP
03781617 Mar 2006 JP
2006110329 Apr 2006 JP
2006513824 Apr 2006 JP
03801449 May 2006 JP
2006116036 May 2006 JP
03850102 Sep 2006 JP
03850207 Sep 2006 JP
03856941 Sep 2006 JP
03868628 Oct 2006 JP
03874499 Nov 2006 JP
03877702 Nov 2006 JP
2006325639 Dec 2006 JP
2006346021 Dec 2006 JP
03904356 Jan 2007 JP
2007007455 Jan 2007 JP
2007007456 Jan 2007 JP
03926042 Mar 2007 JP
03934855 Mar 2007 JP
2007089906 Apr 2007 JP
2007105198 Apr 2007 JP
2007152033 Jun 2007 JP
03986210 Jul 2007 JP
03986222 Jul 2007 JP
2007167453 Jul 2007 JP
2007175515 Jul 2007 JP
2007195665 Aug 2007 JP
2007267763 Oct 2007 JP
2007275491 Oct 2007 JP
04035341 Nov 2007 JP
04058281 Dec 2007 JP
04061086 Dec 2007 JP
04092319 Mar 2008 JP
2008080150 Apr 2008 JP
2008093289 Apr 2008 JP
04124322 May 2008 JP
2008119081 May 2008 JP
2008136739 Jun 2008 JP
2008136877 Jun 2008 JP
04148594 Jul 2008 JP
04148620 Jul 2008 JP
2008154606 Jul 2008 JP
04162609 Aug 2008 JP
04162637 Aug 2008 JP
04166923 Aug 2008 JP
04167406 Aug 2008 JP
04173723 Aug 2008 JP
04190675 Sep 2008 JP
04190693 Sep 2008 JP
04208338 Oct 2008 JP
2008246089 Oct 2008 JP
4177770 Nov 2008 JP
04230971 Dec 2008 JP
2008295475 Dec 2008 JP
2008295713 Dec 2008 JP
04261593 Feb 2009 JP
2009112590 May 2009 JP
04322228 Jun 2009 JP
2009136601 Jun 2009 JP
2009142401 Jul 2009 JP
2009201878 Sep 2009 JP
04392936 Oct 2009 JP
2009232987 Oct 2009 JP
2009261777 Nov 2009 JP
2009291473 Dec 2009 JP
2009297048 Dec 2009 JP
2010017342 Jan 2010 JP
04458702 Feb 2010 JP
04459013 Feb 2010 JP
2010022560 Feb 2010 JP
04481325 Mar 2010 JP
2010051654 Mar 2010 JP
2010063814 Mar 2010 JP
2010063944 Mar 2010 JP
04492957 Apr 2010 JP
2010068954 Apr 2010 JP
2010075462 Apr 2010 JP
2010082059 Apr 2010 JP
2010104545 May 2010 JP
2010104547 May 2010 JP
2010110535 May 2010 JP
2010119454 Jun 2010 JP
2010119605 Jun 2010 JP
2010119743 Jun 2010 JP
2010131131 Jun 2010 JP
2010131132 Jun 2010 JP
2010131206 Jun 2010 JP
2010131297 Jun 2010 JP
2010136917 Jun 2010 JP
2010136973 Jun 2010 JP
04540563 Jul 2010 JP
04587947 Sep 2010 JP
2010194124 Sep 2010 JP
2010201093 Sep 2010 JP
2010221067 Oct 2010 JP
4577766 Nov 2010 JP
04620299 Nov 2010 JP
04627472 Nov 2010 JP
04627473 Nov 2010 JP
04638087 Dec 2010 JP
04652626 Dec 2010 JP
2010273842 Dec 2010 JP
2010284418 Dec 2010 JP
2011000480 Jan 2011 JP
2011030700 Feb 2011 JP
04693574 Mar 2011 JP
2011067484 Apr 2011 JP
2011072720 Apr 2011 JP
2011104014 Jun 2011 JP
2011104122 Jun 2011 JP
2011120661 Jun 2011 JP
2011125360 Jun 2011 JP
2011125537 Jun 2011 JP
04776516 Jul 2011 JP
2011130797 Jul 2011 JP
2011130799 Jul 2011 JP
2011156032 Aug 2011 JP
2011156070 Aug 2011 JP
2011156254 Aug 2011 JP
04824882 Sep 2011 JP
4850272 Oct 2011 JP
04855533 Nov 2011 JP
2011239858 Dec 2011 JP
04931572 Feb 2012 JP
04937225 Mar 2012 JP
04953618 Mar 2012 JP
04969437 Apr 2012 JP
04969640 Apr 2012 JP
4971491 Apr 2012 JP
04974524 Apr 2012 JP
04979780 Apr 2012 JP
05016020 Jun 2012 JP
05027364 Jun 2012 JP
2012115378 Jun 2012 JP
05031082 Jul 2012 JP
05042351 Jul 2012 JP
05043569 Jul 2012 JP
05043591 Jul 2012 JP
05046488 Jul 2012 JP
2012125452 Jul 2012 JP
2012125625 Jul 2012 JP
05053765 Aug 2012 JP
05070275 Aug 2012 JP
05079931 Sep 2012 JP
05080189 Sep 2012 JP
05084442 Sep 2012 JP
05084476 Sep 2012 JP
5085770 Sep 2012 JP
05089269 Sep 2012 JP
05113146 Oct 2012 JP
05129536 Nov 2012 JP
05105884 Dec 2012 JP
5715806 May 2015 JP
20010005620 Jan 2001 KR
20020035634 May 2002 KR
20080028771 Apr 2008 KR
9400916 Mar 1994 SE
9704893 Dec 1997 SE
WO9015830 Dec 1990 WO
WO9219198 Nov 1992 WO
WO9321237 Oct 1993 WO
WO9321879 Nov 1993 WO
WO9510996 Apr 1995 WO
WO9511652 May 1995 WO
WO9514453 Jun 1995 WO
WO9515139 Jun 1995 WO
WO9516424 Jun 1995 WO
WO9516746 Jun 1995 WO
WO9519753 Jul 1995 WO
WO9521596 Aug 1995 WO
WO9524173 Sep 1995 WO
WO9526209 Oct 1995 WO
WO9529657 Nov 1995 WO
WO9532698 Dec 1995 WO
WO9534329 Dec 1995 WO
WO9616624 Jun 1996 WO
WO9619173 Jun 1996 WO
WO96029967 Oct 1996 WO
WO9711659 Apr 1997 WO
WO9717922 May 1997 WO
WO9816179 Apr 1998 WO
WO9816180 Apr 1998 WO
WO9843684 Oct 1998 WO
WO9913813 Mar 1999 WO
WO9934841 Jul 1999 WO
WO9951178 Oct 1999 WO
WO200000235 Jan 2000 WO
WO200032145 Jun 2000 WO
WO200059430 Oct 2000 WO
WO200115647 Mar 2001 WO
WO200126596 Apr 2001 WO
WO200207663 Jan 2002 WO
WO200232962 Apr 2002 WO
WO2002064877 Aug 2002 WO
WO2002067809 Sep 2002 WO
WO2003009794 Feb 2003 WO
WO2003039402 May 2003 WO
WO2003053297 Jul 2003 WO
WO03079946 Oct 2003 WO
WO03101622 Dec 2003 WO
WO2003105738 Dec 2003 WO
WO2004021946 Mar 2004 WO
WO2004049995 Jun 2004 WO
WO2004071539 Aug 2004 WO
WO2004084784 Oct 2004 WO
WO2004105664 Dec 2004 WO
WO2005018694 Mar 2005 WO
WO2005087164 Sep 2005 WO
WO 2005102237 Nov 2005 WO
WO2006104024 May 2006 WO
WO2006059922 Jun 2006 WO
WO2006062258 Jun 2006 WO
WO2006066029 Jun 2006 WO
WO2006083584 Aug 2006 WO
WO2006134904 Dec 2006 WO
WO2006134906 Dec 2006 WO
WO2007000315 Jan 2007 WO
WO2007046052 Apr 2007 WO
WO2007047598 Apr 2007 WO
WO2007049725 May 2007 WO
WO2007061035 May 2007 WO
WO2007142145 Dec 2007 WO
WO2007148502 Dec 2007 WO
WO2008018922 Feb 2008 WO
WO2008065945 Jun 2008 WO
WO2008146749 Dec 2008 WO
WO2008155699 Dec 2008 WO
WO2009004941 Jan 2009 WO
WO2009005431 Jan 2009 WO
WO2009139248 Jan 2009 WO
WO2009139255 Jan 2009 WO
WO2009041223 Apr 2009 WO
WO2009096108 Aug 2009 WO
WO2009107435 Sep 2009 WO
WO2009122830 Oct 2009 WO
WO2009152018 Dec 2009 WO
WO2009155264 Dec 2009 WO
WO2009155265 Dec 2009 WO
WO2010071508 Jun 2010 WO
WO2010074319 Jul 2010 WO
WO2010107096 Sep 2010 WO
WO2010114052 Oct 2010 WO
WO2010117015 Oct 2010 WO
WO2010118272 Oct 2010 WO
WO201153044 May 2011 WO
WO2011118725 Sep 2011 WO
WO2011118842 Sep 2011 WO
WO2011145653 Nov 2011 WO
WO2011150955 Dec 2011 WO
WO2011163582 Dec 2011 WO
WO2012002252 Jan 2012 WO
WO2012014436 Feb 2012 WO
WO2012042908 Apr 2012 WO
WO2012043077 Apr 2012 WO
WO2012043078 Apr 2012 WO
WO2012052172 Apr 2012 WO
WO2012043082 May 2012 WO
WO2012067216 May 2012 WO
WO2012073499 Jun 2012 WO
WO2012074466 Jun 2012 WO
WO201291016 Jul 2012 WO
WO2012090508 Jul 2012 WO
WO2012101934 Aug 2012 WO
WO2012102034 Aug 2012 WO
WO 2012117764 Sep 2012 WO
WO2012117824 Sep 2012 WO
WO2012132460 Oct 2012 WO
WO2012170778 Dec 2012 WO
WO2012170779 Dec 2012 WO
WO2012170781 Dec 2012 WO
WO2012170808 Dec 2012 WO
WO2012174026 Dec 2012 WO
WO2013001788 Jan 2013 WO
WO2013046701 Apr 2013 WO
WO2013060733 May 2013 WO
WO2014073636 May 2014 WO
WO2014078247 May 2014 WO
Non-Patent Literature Citations (5)
Entry
International Search Report and Written Opinion, PCT/2013/073351, dated Mar. 4, 2014.
International Search Report and Written Opinion, PCT/2013/073353, dated Mar. 4, 2014.
All Office Actions, Responses, and Claims, U.S. Appl. No. 13/709,244.
All Office Actions, Responses, and Claims, U.S. Appl. No. 13/709,169.
All Office Actions, Responses and Claims, U.S. Appl. No. 13/709,254.
Related Publications (1)
Number Date Country
20160354260 A1 Dec 2016 US
Continuations (2)
Number Date Country
Parent 13709254 Dec 2012 US
Child 14938093 US
Parent 13709244 Dec 2012 US
Child 13709254 US
Continuation in Parts (1)
Number Date Country
Parent 14938093 Nov 2015 US
Child 15238401 US