Process and apparatus for preparing a molded article

Abstract
A film is placed over a mold cavity and molten plastic deposited thereon to form a combination of a film with molten plastic thereon. The film-molten plastic combination is then formed in said mold cavity into a molded article in the shape of the mold cavity.
Description




BACKGROUND OF THE INVENTION




In accordance with U.S. Pat. No. 5,401,457 for PROCESS FOR FORMING A COLOR COATED ARTICLE, By Emery I. Valyi, Patented Mar. 28, 1995, a process is provided for forming a color coated article. In accordance with the '457 patent, a film is placed substantially flat over a mold cavity and deformed by a core mold half and by molten plastic entering through a sprue.




An alternate method consists of thermoforming the film to nest accurately in the mold cavity, with said operation being carried out independently of the mold. The formed film insert is then brought to the mold and placed into the cavity. This procedure is described by Ch. Fridley, Avery Dennison, in Product Finishing, Apr. 19, 1992, and European Patent 0,442,128 to Beyer, and other publications. The Avery procedure entails a forming process of the film that is well known and widely practiced for other uses. It is a low pressure process for shaping the film or sheet, in solid condition, at relatively low temperatures. This holds for all of the several variants of thermoforming, such as vacuum forming, whether the vacuum is to suck the film into the cavity, or onto the core, as well as thermoforming followed by a sizing operation.




The result of this is a product whose dimensional accuracy and shape conformance is not within the range of a high pressure forming process, such as injection molding or compression molding. Consequently, the thermoformed preform, while nesting in the mold cavity or slipped over the core, fails to conform to them fully. Thus, upon injecting or compressing plastic behind the preform, the preform will deform producing localized surface imperfections. These imperfections may be dimensionally insignificant but optically discernible and therefore may provide a product of insufficient quality for an automotive finish, for example. In addition, the cost of a separately made film insert is relatively high, considerable trim scrap is generated, and the handling (transport, destacking, insertion) become expensive.




The procedure of the '457 patent overcomes the above defects; however, it is difficult to control, particularly when molding parts with large surfaces and sharply varying curvature. The difficulties increase when the plastic is pressure molded at high enough temperatures to reduce the film strength substantially, as in the case of conventional injection molding.




In applying either of the above processes to large, panel-like structures, it was found, moreover, that the procedure of injection molding of the '457 patent and Avery Dennison procedure referred to above, is difficult to carry out, requiring extremely costly equipment, and prone to produce imperfections at the interface between the film layer and the injected plastic.




Accordingly, it is a principal object of the present invention to provide a process and apparatus which conveniently and expeditiously forms a molded article from molten plastic and a film insert, wherein the film is the outer layer of the molded article and wherein desirably the film is colored.




It is a further object of the present invention to provide a process and apparatus as aforesaid which overcomes the foregoing defects and provides a commercially feasible process and apparatus for forming a color coated article.




It is a still further object of the present invention to provide a process and apparatus as aforesaid which is operative under conditions that are sufficiently controllable and cost efficient to produce complex parts, particularly those of a size of major body components of passenger cars.




Further objects and advantages of the present invention will appear hereinbelow.




SUMMARY OF THE INVENTION




In accordance with the present invention, the foregoing objects and advantages are readily obtained.




The present invention includes a process for preparing a molded article, which comprises: providing a mold cavity; placing a film or blank over the mold cavity; depositing molten plastic on said film to form a combination of a film with molten plastic thereon; and subsequently forming said film-molten plastic combination in said mold cavity into a molded article having the shape of said mold cavity, wherein the film is an outer layer of the molded article. Desirably, the film is colored and is held over the mold cavity and molten plastic is deposited onto the film. Also, preferably the combination is formed into the shape of the mold cavity at least in part by a mold core which compresses the combination and forms the combination into the shape of the mold cavity. Thus, the resultant article is desirably a molded, color coated article having a desired shape, which may be a complex shape, as defined by the shape of mold cavity. Naturally, the mold may include other components, such as slides and lifters which are well known.




The present invention also includes an apparatus for preparing a molded plastic article, which comprises: a mold cavity; means for holding a film or blank, desirably a colored film, over the mold cavity; means for depositing molten plastic onto said film to form a combination of a film with molten plastic thereon; and means for forming said film-molten plastic combination subsequent to depositing molten plastic onto said film in said mold cavity into a molded article having the shape of the mold cavity, wherein the film is an outer layer of the molded article.




The present invention adheres to the principle of forming the film in uniformity with the plastic that backs same, and thereby to effect full shape conformance without optically discernable flaws of the exposed film surface, which may be a paint film, and to form the resultant molded article under closely controlled conditions of temperature distribution and pressure in an efficient manner.




Further specific features and advantages of the present invention will appear hereinbelow.











BRIEF DESCRIPTION OF THE DRAWINGS




The present invention will be more readily understood from a consideration of the following drawings wherein:





FIG. 1

is a partly schematic view of the apparatus and process of the present invention in an early stage of the preparation of the molded article;





FIGS. 2 and 3

are partial views showing variations in the process and apparatus of the present invention;





FIG. 4

is a partial view further variation of the process and apparatus of the present invention; and





FIGS. 5

,


6


,


7


and


8


show additional variations of the present invention.











DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS




Referring to

FIGS. 1-3

, a mold


10


consisting of cavity half


12


having a mold cavity


12




a


therein and core half


14


is mounted on respective platens


16


and


18


. Mold cavity


12




a


has a shape of the desired final molded article. At least one of cavity half and core half is reciprocable in the direction of the arrow


20


from an open to a closed position and from a closed to open position via motive means (not shown). An extruder/injection unit


22


having a nozzle


24


is arranged adjacent mold


10


to coact and couple with a hot plastic delivery means, as plate


26


. Plate


26


is relatively reciprocable in the direction of the horizontal arrow


28


from a position adjacent mold cavity


12




a


to a position spaced from mold cavity


12




a


and is supplied with hot, flowable plastic by extruder


22


and nozzle


24


. Depending on the nature of plate


26


, the extruder may be stationary or reciprocable with plate


26


. Naturally, other variations in the hot plastic delivery system may be used. For example, the extruder/injection system and hot plastic delivery means may be stationary externally to the press and the mold traversed reciprocably relative to the extruder/injection system. Other variations may be readily contemplated.




Plate


26


in

FIG. 1

is a hot runner having an elongated channel


30


which communicates with a multiplicity of openings


32


positioned over mold cavity


12




a.


Each opening is closeable by known means, as by valve means


34


. The openings


32


receive hot plastic under pressure from extruder


22


through extruder nozzle


24


and hot runner feed channel


30


. While the extruder


22


and hot runner delivery plate


26


are coupled, plastic is caused to flow from nozzle


24


into channel


30


. For the delivery plate to operate when the extruder is detached, a free end


36


of channel


30


contains a check valve


38


(shown schematically), and pressurized piston means


40


are added to engage the opposed end


42


of channel


30


to operate by conventional means, for example, a hydraulic cylinder (not shown) to apply force to hot runner channel


30


in the direction of the horizontal arrow


44


.




Alternatively, one could selectively close valve means


34


and apply pressure through piston means


40


, thereby obtaining a thicker coating in desired locations. Alternatively, one could use shooting pots or plastic reservoirs, for example, connected to each individual valve means, thereby obtaining additional resin thickness where desired.




In one method of operation, the extruder


22


is left in place spaced from mold


10


and the plate


26


alone is moved into position over mold cavity


12




a


as shown in

FIG. 1

, after having been charged with hot plastic by extruder


22


. To prevent drooling, check valve


38


is closed. In addition, piston means


40


may be retracted in engagement with channel end


42


, thereby creating suction in channel end


42


to better retain the hot plastic therein.




A hold down and spacer frame


46


is aligned with cavity half


12


, engageable therewith and detachable therefrom and coupled with means to move same (not shown) towards and away from cavity half


12


independently of the reciprocal movement of core half


14


. Thus, a pair of lift cylinders


48


may be mounted on either platens


16


or


18


with mounting on platen


16


being shown in FIG.


1


.




Thus, plate


26


is filled with hot plastic by extruder


22


. If the two are coupled, they are moved so as to place the hot runner into alignment with cavity half


12


. Before so placing the hot runner, spacer frame


46


is lifted away from cavity half


12


far enough to permit a precut film or blank


50


to be placed over the rim


52


(see

FIG. 2

) of the mold cavity


12


a of cavity half


12


by any desired means, as for example, shown in the '457 patent. With the blank


50


in place, frame


46


is moved towards cavity half


12


to hermetically clamp blank


50


over the mold cavity


12




a


as shown in

FIG. 2

, thereby rendering said cavity capable of retaining elevated fluid pressure. Optionally, the film may be offset from the cavity and supported by air jets. Alternatively, spacer frame


46


may include an upper half


46




a


and a lower half


46




b


with a space


47


therebetween as shown in FIG.


1


. This clamp may be a slip clamp to permit release of the film into mold cavity


12




a


during forming and thereby minimize edge scrap and reduce the amount of film thinning that may occur. If desired, scrap trim may be minimized by folding over excess film and heat sealing the excess film to inside edge portions of the molded article, as by ironing.




Fluid pressure may then be applied to mold cavity


12




a


under blank


50


, as through channels


54


connected through a joint manifold


56


with pressure control means


58


. The fluid usually used is air, but may also be an inert gas if the material of blank


50


so requires. Alternatively, fluid pressure may be applied through channel


55


in cavity half


12


directly beneath film blank or film


50


in order to properly hold the film in place. Preferably, a plurality of locations, or a continuous channel, are provided around the circumference of the film directly beneath the film. Also, these may be valved separately from channels


54


or used instead of channels


54


.




Nozzle valve means


34


are then withdrawn to allow hot plastic to flow freely from hot runner plate


26


through nozzle openings


32


onto blank


50


in the space between the hot runner plate


26


and blank


50


and within frame


46


. The space within frame


46


is not filled under substantial pressure, such as usual in injection molding. Rather, only an accurately metered amount


60


of hot plastic is deposited upon blank


50


from hot runner plate


26


, namely that which corresponds substantially to the molding cavity to be formed in mold cavity


12


a by cavity half


10


and core half


14


in the closed condition.




It is important to note that in consequence of introducing the hot plastic into the space within frame


46


, no more pressure is applied underneath the blank via fluid channels


54


and


55


than that sufficient to support the metered amount


60


of plastic being so deposited. Desirably, the air pressure is variable depending on product requirements. Indeed, vacuum may be used during forming. As schematically indicated in

FIG. 1

, that metered amount


60


will comprise a plastic layer that will conform to the flat surface of the blank on one side, while its opposite surface will have an uneven surface


62


as clearly shown in

FIG. 1

, showing traces of the viscous flow pattern that will have emerged from nozzles


32


. Naturally, the nozzles are spaced closely enough to permit the emerging plastic to form a continuous, homogeneous layer. Alternatively, one polymer could be deposited in a designed pattern, and a second or a plurality of second polymers deposited in a designed pattern. This could be done with one or more extruders feeding for example separate channels to deposit a predesigned pattern of multiple resins. As a further alternative, one could sequentially feed polymers of different characteristics to provide designed properties in the finished product.




Each of nozzles


32


may be independently temperature controlled, if desired, and hence capable of depositing the plastic in a pattern of predetermined temperature distribution.




Before releasing the hot plastic into the space above blank


50


, the mold cavity


12




a


is pressurized as described above, as by air pressure entering through channels


54


. Since the finished product is usually thin, while having a large surface area, the weight of metered plastic


60


is relatively low and the average static pressure it exerts upon the film or blank


50


is low as well. Hence, relatively low pressure in the mold cavity will suffice to keep the blank


50


from sagging under the weight of the metered plastic, even when blank


50


is heated by contact with the metered plastic. For example, a metered amount of plastic measuring 2′×4′×0.5″, made of plastic weighing 0.05 pounds per cubic inch, will exert a pressure of 0.025 psi over the said area. This amounts to very slight over pressure to support the blank, with the result that said blank will not bulge (balloon) upward excessively when pressure is first applied under it. In exceptional instances, the layer of hot plastic being applied over the blank may be of much greater depth. Even then, the above indicated pressure would not cause excessive bulging. Forming of a crease-like line at the edge of spacer frame


46


, may be prevented as shown by a curved clamping surface


64


thereof in

FIG. 2

with slight upward bulging of film


50


shown caused by pressurization of mold cavity


12




a.


Indeed, upward bulging may be desirable in some instances, as for feed draw parts.




After deposition of the plastic layer


60


on film


50


, plate


26


is moved from between cavity half


12


and core half


14


and mold


10


is closed, as by moving core half


14


into mold cavity


12




a.


This results in forming the film and deposited plastic into a composite laminate in the shape of the closed mold cavity in an expeditious and convenient manner.




DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS




The blank is preferably plastic, and any desired plastic material may be used for the blank or molten plastic material, for example, polyolefins, polyvinyl chloride, polystyrene, polycarbonates, etc. Any thermoplastic and/or thermoset material may be used for the molten material, such as for example, structural foam, rim, epoxy, polyurethanes, bulk molding compound, sheet molding compound, etc. The blank may be cut or stamped from a web and a supply of blanks having the size and shape to fit over mold cavity


12




a


maintained adjacent mold


10


for transfer to the mold as described above. The depth of color on the blank may naturally be varied depending on needs. One should naturally consider the thinning of the blank or film during processing and adjust the color depth to the amount of deformation any given portion of the blank or film is to undergo. Thus, for example, thicker paint coatings may be applied to selective blank or film locations that are to obtain greater deformation durinig processing in order to obtain uniformity of color in the final molded product. The blank may be applied to the mold with robot means or removably adhered to a carrier film





FIG. 3

shows an alternate method for applying the hot plastic. Instead of plate


26


being a hot runner as shown in

FIG. 1

, the extruder


22


is coupled with a so-called coat hanger die


70


, serving as a hot plastic delivery plate, i.e., die with a slit opening


72


for the plastic as normally used for the extrusion of wide sheets. The extruder


22


and die


70


are reciprocable in the direction of arrow


74


towards and away from mold


10


. In operation, the blank


50


having been placed over the mold cavity


12




a


and clamped down as by spacer frame


46


, as in

FIGS. 1-2

, the extruder


22


and die


70


are traversed over blank


50


, and the desired layer of hot plastic is deposited thereover. The thickness of the plastic layer is given by the speed of traverse, the output of the extruder and the dimensions of the die, all controlled in a conventional manner. At the end of the traverse, the extruder is shut off and returned to its starting position. One may provide an extruder with width and/or thickness control to control the thickness and/or width of the plastic layer. The speed of traverse and/or the output of the extruder could be variable. The positioning of the extruder in the X, Y and Z planes could be variable to vary the dimensions and/or configuration of the plastic layer.




The advantage of this procedure is in its lower tooling cost. However, it may only be used when progressive deposition, as against simultaneous, with a hot runner, is acceptable, e.g., for narrow parts requiring but a relatively short traverse of the extruder.




A significant feature of the present invention is the uniformity of heating of the film or blank without having to resort to external means, and the assurance that the forming operation is carried out simultaneously, film or blank and the backing layer, followed by the application of high enough molding pressures to provide mold conformance of both. The finish of the film is thereby preserved and optically detectable imperfections are avoided. Also, this procedure requires much lower clamping pressure than conventional procedures.




While the foregoing procedure is aimed primarily at application in the exterior of vehicles, it should be noted that there are many other types of components that would benefit from the subject process of compression molding with a colored finish and with an accurately molded article, particularly for large household appliances and architectural components.




Referring to the variation of

FIG. 4

, platen


80


is shown with an elastomeric forming mandrel


82


therein containing air slots


84


and pressure control means


86


connected thereto. Mold


88


is shown with mold cavity


90


therein, film


92


and clamping frame


94


to hold the film on the mold rim


96


. The hot plastic


98


is deposited on film


92


as in previous embodiments. As shown in the embodiment of

FIG. 4

, slots


84


intersect a manifold slot


100


which is connected to a source of fluid pressure, as air.




In operation, the elastomeric mandrel


82


enters the clamping frame


94


. Pressure air is applied to slots


84


expanding the slots into passages. Thereby, pressure is applied to the deposited plastic


98


and the film


92


. Pressure is present in the mold cavity


90


as in

FIGS. 1-3

and the pressure is controllably released at the same time, resulting in blow molding of plastic


98


and film


92


. The mandrel


82


moves simultaneously downward in the direction of arrow


102


. As the plastic and film reach the mold surface, the mandrel continues and due to its elastic nature conforms to the surface of the plastic away from the film, and continuing pressure by the platen exerts hydrostatic pressure on the plastic. That pressure may be much higher than would be economically available from a compressed fluid, e.g., over 1000 psi. The top or inner surface of the finished part will be substantially parallel to the mold surface. The mandrel is preferably cooled, as is the mold.




The foregoing process represents an improved method and apparatus for forming large, panel-like, thick parts because it overcomes the difficulty of heating a thick plate uniformly. It is useful, whether a colored or painted film is required or not. Any plastic film may be used as a support of the hot plastic so long as it is compatible with the plastic to be molded. The compatibility may be achieved by a variety of methods, such as melt bonding, use of adhesives or tie layers. Alternatively, in some cases one could use a non-compatible or removable film layer.




Alternatively, one may employ a second film layer


93


(see

FIG. 4

) under the main film layer


92


to provide further support for the main film layer


92


. For example, a second film layer may be secured over the mold cavity to support a thinner, fragile film or multiple films in position, or to support a logo or decal


93


′ on film


92


. Naturally, the second film may desirably be transparent, and naturally also the second film may be used with any embodiments of the present invention. The second film will desirably be secured to the mold in the same manner as the main film.





FIGS. 5

,


6


and


7


show detailed variations of the present invention.




As shown in

FIG. 5

, film


110


is held over mold cavity half


112


by frame


114


and molten plastic deposited thereon by manifold


116


via outlets


118


in the direction of arrows


120


. Mold cavity half


112


includes cooling channels


122


and compressed air or vacuum channels


124


to provide air pressure under film


110


or to aid in the forming procedure. The temperature of the film sheet is adjusted according to the extent of deformation it is to undergo. The film-molten plastic combination is compression molded in the mold cavity half after removal of manifold


116


from between the mold halves via core half


126


which contains cooling channels


128


. The finished molded article including the film and deposited plastic is then formed between the mold cavity and mold core.





FIG. 6

is similar to

FIG. 5

, with the use of traversing extruder


130


which extrudes a molten plastic layer


132


onto film


110


. Air cooling nozzles


134


may be provided to properly temperature condition the molten plastic layer


132


. Both the extruder


130


and cooling nozzles


134


are movable from a position above film


110


as shown in

FIG. 6

to a position spaced from film


110


to permit engagement of core half


126


with the film-molten plastic combination.





FIG. 7

shows film inserter


140


and film feed means


142


for feeding a film


144


to mold


146


above mold cavity half


148


. Reciprocable hot plastic delivery means


150


movable in the direction of arrow


152


is provided adjacent mold


146


to prepare a molded product


154


as in previous embodiments. In the embodiment of

FIG. 7

, a metal or plastic insert


156


may be fed to the mold to be made a part of molded product


154


as shown. Alternatively, a fiberglass mat or scrim may be used as a reinforcement, or any suitable and desired reinforcing or functional material, as random fiberglass material, textiles, metal, plastic, etc. One may reinforce the entire structure or selectively stiffen the structure as required. Product removal robot


158


is provided adjacent mold


146


to remove the molded product. The molded product, of course, may have a variety of uses, as for example, a side panel


160


for an automobile


162


.





FIG. 8

shows a closed mold


170


with cavity portion


172


and core portion


174


. The molded article includes film layer


176


, plastic layer


178


and reinforcement material or fasteners


180


. The reinforcement material or fasteners


180


may be applied to core portion


174


in order to provide exact location on the molded article. When the mold


170


is closed, the fastener or the like may be ejected via ejection passage


182


or any other desired means to become firmly bonded to or embedded in the plastic layer. Ejection may for example be by hydraulic or mechanical means. The reinforcements or fasteners may be selectively placed on the molded article as shown in

FIG. 8

, or may completely cover the molded article.




Alternatively, the assembly of the frame, film, plastic layer assembly may be prepared at an upstream location spaced from the mold, for example, on a removable board. All pre-conditioning operations can then be done before the assembly is deposited on the mold and the only step performed by the mold is the final forming operation. This will result in an assembly line type operation with the assembled and pre-conditioned film-plastic held on a frame transferred to the mold for final forming.




As a further alternative, one can use co-extrusion for the molten plastic. Plastic from a die may be extruded in co-layers or in multiple passes from two heads to deposit different polymers and/or compositions and/or fillers.




As a still further alternative, one may employ a variety of types of films, as a conductive film (EMI-RFI), a film with UV and/or infrared absorption characteristics, or any desired and convenient film with desired range of properties to achieve particular results.




Thus, in accordance with the present invention, a die cut film blank is placed over the mold cavity. It is cut to match the cavity edge with just enough overlap to permit clamping. The structural plastic is applied over the blank while the cavity under it is pressurized enough to support the weight of the plastic. It is dispensed either from a hot runner or a modified hot runner or from a traversing extruder. It is then conditioned as by cooling nozzles to acquire a point-by-point preset temperature distribution, including the film or blank. The mold is closed by a mold core, while the pressure in the cavity is released and the cavity is evacuated. The molded article may be provided with inserted elements of a structure made of metal or different plastics including for example scrim, fibers, woven and non-woven mats, etc. The core compresses the plastic which is coated on the core side of the film. If a paint film is used, the part can obtain a Class A finish, as molded. Because of the controlled deformation parameters or depth of color, the deformed film thickness can maintain uniform gloss and depth of color after molding. To finish the process, the part is cooled in the mold, which is temperature controlled. No mechanical ejectors are needed and no ejector marks are left: upon opening the mold, the part is separated from the mold surface by any desired means, as by air-ejectors, using the channels that were used at the outset to “float” the carrier film, and transferred by suction to the robot end of arm.




Unlike injection molding, this procedure is based on the following considerations. In the injection molding process, molten plastic is forced through a small orifice into a large space confined by walls that are intensively chilled. Mold filling occurs by coating the mold walls and filling the diminishing space between them progressively, under conditions of laminar flow. This phenomenon, called tunnel-flow, makes coinjection possible. The molten and then gradually solidifying plastic cools inward from the mold wall, through the first coat and the adjoining laminar structure, in a material that is a poor heat conductor. The rate and amount of shrinkage from melt to solid varies accordingly layer-by-layer, and depends on the changes in wall thickness spot-by-spot. Passing through the melt-transition temperature, T


M


, particularly in crystalline plastics, interferes severely with the conformance of the plastic to the mold. Hence, the sink-marks opposite the gate vestige and at the opposite of a thick rib, and waviness of larger surfaces. Another fatal consequence of volume change at T


M


in large, thin injection molded panels of varying curvature, can be the residual stresses that warp surfaces as they are relieved, e.g., by environment exposure, as temperature rises, or corrosive moisture is absorbed; this, in addition to other expected consequence of stress concentrations.




The solution of this nearly intractable problem is to bypass the T


M


—caused volume change in the molding process. This is precisely what the compression molding of the present invention accomplishes.




As an alternative embodiment, one may provide a plastic film, covered with molten plastic as above, covered in turn with a reinforcement material. The male mold would press the components together and embed the reinforcement material in the plastic. Alternatively, one may provide an additional layer of molten plastic material over the reinforcement material, effectively embedding the reinforcement material between the two plastic layers.




The present invention achieves significant advantages over injection molding procedures. Thus, the present invention results in lower equipment and tooling investments. Additionally, the use of paint films to produce finished structural panels eliminates the need for costly paint plant investments, and eliminates all the environmental issues related to painting since the film can be made in a closed, environmentally secure chamber.




In addition, no preforming of the film is required to produce Class A structural components. Cycle times are faster than injection molding. Forming pressures are lower than conventional injection molding. Further, the open mold nature of the subject process and apparatus permits selective insertion of reinforcements or additional components, such as fasteners, logos, indicias, designs, or the like.




It is to be understood that the invention is not limited to the illustrations described and shown herein, which are deemed to be merely illustrative of the best modes of carrying out the invention, and which are susceptible of modification of form, size, arrangement of parts and details of operation. The invention rather is intended to encompass all such modifications which are within its spirit and scope as defined by the claims.



Claims
  • 1. A compression molded article which comprises: a plastic layer; an outer film layer over said plastic layer and forming a composite laminate therewith, wherein said outer film layer is the outermost layer; at least one insert selected from the group consisting of fiberglass, textile and fibers bonded to said plastic layer; wherein said outer film layer, plastic layer and insert are a compression molded article having a desired compression molded shape, and wherein said insert is a reinforcing material and wherein said insert is embedded in said plastic layer, wherein said plastic layer has a first surface directly bonded to said outer film layer and a second surface opposed to said first surface, with said insert embedded in said second surface, and wherein said insert is smaller than both the plastic layer and the outer film layer.
  • 2. Article according to claim 1, wherein the outer film layer is plastic.
  • 3. Article according to claim 2, wherein the plastic outer film layer is colored.
  • 4. Article according to claim 1, wherein said outer film layer is selected from the group consisting of a conductive film, a film with UV absorption characteristics, and a film with infrared absorption characteristics.
  • 5. Article according to claim 1, including a second plastic layer adjacent said plastic layer.
  • 6. Article according to claim 5, wherein said insert is embedded in the two plastic layers.
  • 7. Article according to claim 1, wherein said outer film layer includes a second outer film layer.
  • 8. Article according to claim 7, wherein said second outer film layer is transparent.
  • 9. Article according to claim 1, wherein said plastic layer is an extruded layer.
  • 10. Article according to claim 1, wherein said plastic layer is a co-extruded layer.
  • 11. Article according to claim 1, wherein said insert is spaced from said outer film layer.
  • 12. Article according to claim 1, wherein substantially the entire first surface of said plastic layer is bonded to said outer film layer.
  • 13. Article according to claim 1, wherein the plastic layer is formed from a molten plastic layer deposited on the outer film layer, and wherein the insert is ejected onto said molten plastic layer.
  • 14. Article according to claim 1, including greater than one insert bonded to said plastic layer, wherein said inserts are spaced from each other.
  • 15. Article according to claim 1, wherein said plastic layer is a continuous solid plastic layer.
  • 16. Article according to claim 15, wherein said plastic is selected from the group consisting of polyolefins, polyvinyl chloride, polystyrene and polycarbonates.
  • 17. Article according to claim 15, wherein said plastic is a thermoplastic material.
  • 18. Article according to claim 15, wherein said plastic is a thermoset material.
  • 19. Article according to claim 1, wherein said first surface of said plastic layer is directly bonded to and in contacting relationship with said outer film layer along the entire first surface thereof.
CROSS-REFERENCE TO RELATED APPLICATION

This is a Continuation of application Ser. No. 09/525,971, filed Mar. 15, 2000, abandoned which in turn is a Divisional of application Ser. No. 09/130,864, filed Aug. 7, 1998, now U.S. Pat. No. 6,132,669. This application claims the benefit of Provisional Application Serial No. 60/055,652, filed Aug. 14, 1997 for COMPRESSION MOLDED ARTICLE THAT MAY BE COLOR COATED, By Emery I. Valyi.

US Referenced Citations (2)
Number Name Date Kind
4717302 Adams et al. Jan 1988 A
5804262 Stevens et al. Sep 1998 A
Provisional Applications (1)
Number Date Country
60/055652 Aug 1997 US
Continuations (1)
Number Date Country
Parent 09/525971 Mar 2000 US
Child 09/909516 US