The present disclosure relates to cooling apparatuses and associated compositions and, more specifically, to ice pack apparatuses and associated compositions.
Various apparatuses may be used for cooling objects (e.g., to contact an object in order to lower and/or maintain a temperature of the object). In addition, various compositions may be provided in such apparatuses in order to achieve such a cooling effect. However, such apparatuses and/or associated compositions do not achieve sufficient cooling in some instances. As such, new apparatuses and/or associated compositions may be desirable.
According to one or more embodiments, a composition includes a sodium acrylate polymer, antifreeze proteins, sodium chloride. and magnesium glycinate. According to one or more embodiments, an ice pack apparatus includes a body having one or more walls defining a cavity that holds a composition including a sodium acrylate polymer, antifreeze proteins, sodium chloride and magnesium glycinate.
The following detailed description of specific embodiments of the present disclosure can be best understood when read in conjunction with the following drawings, where like structure is indicated with like reference numerals and wherein:
These and other embodiments are described in more detail in the detailed description. It is to be understood that both the foregoing general description and the following detailed description describe present embodiments of the technology, and are intended to provide an overview or framework for understanding the nature and character of the technology as it is claimed. The accompanying drawings are included to provide a further understanding of the technology and are incorporated into and constitute a part of this specification. The drawings illustrate various embodiments and, together with the description, serve to explain the principles and operations of the technology. Additionally, the drawings and descriptions are meant to be merely illustrative, and are not intended to limit the scope of the claims in any manner.
The present disclosure is directed to ice pack apparatuses and/or compositions. The compositions may include a sodium acrylate polymer, antifreeze proteins, sodium chloride, and magnesium glycinate. The presence of the sodium acrylate polymer, antifreeze proteins, sodium chloride, and magnesium glycinate in the compositions may result in the ice pack apparatuses achieving a relatively lower cooling temperature when compared to conventional ice pack apparatuses and compositions. In addition, the presence of the sodium acrylate polymer, antifreeze proteins, sodium chloride, and magnesium glycinate in the compositions may result in the ice pack apparatuses remaining at this relatively lower cooling temperature for a longer time period when compared to conventional ice pack apparatuses and compositions. Further, the sodium acrylate polymer, antifreeze proteins, sodium chloride, and magnesium glycinate may result in the compositions in the ice pack apparatuses being more acceptable for use than those ice pack apparatuses that contain ammonium nitrate. The ice pack apparatuses may include a body having one or more walls, where the one or more walls define a cavity and wherein the cavity holds a composition therein (including, for example, the various compositions described herein).
While the present disclosure describes ice pack compositions as illustrative examples of the particular compositions shown and described herein, the present disclosure is not solely limited to ice pack compositions. That is, in some embodiments, the compositions described herein may be used for other purposes such as, for example, in medical equipment, medications, compression pads, cooling gels, plastic bags, food and beverage containers/apparatuses, shipping containers/apparatuses, etc. As such, it should be appreciated that the terms “composition” and “ice pack composition” may be used interchangeably herein, and the inclusion of the term “ice pack” is not meant to be limiting.
In one or more embodiments, the composition may include a sodium acrylate polymer. The sodium acrylate polymer may have long-chain copolymers consisting of alternating acrylic acid and sodium acrylate components, as shown below:
The dotted lines represent where the long-chain copolymers may include a plurality of additional alternating acrylic acid and sodium acrylate components. The sodium acrylate polymer may include a plurality of these long-chain copolymers, where one or more long-chain copolymers may cross-link with one or more other long-chain copolymers.
In one or more embodiments, the composition may include from about 50 wt. % to about 99 wt. % of the sodium acrylate polymer, based on the total weight of the composition. For example, in some embodiments, the composition may include from about 55 wt. % to about 99 wt. %, from about 60 wt. % to about 99 wt. %, from about 65 wt. % to about 99 wt. %, from about 70 wt. % to about 99 wt. %, from about 75 wt. % to about 99 wt. %, from about 80 wt. % to about 99 wt. %, from about 85 wt. % to about 99 wt. %, from about 90 wt. % to about 99 wt. %, from about 50 wt. % to about 95 wt. %, from about 50 wt. % to about 90 wt. %, from about 50 wt. % to about 85 wt. %, from about 50 wt. % to about 80 wt. %, from about 50 wt. % to about 75 wt. %, from about 50 wt. % to about 70 wt. %, from about 50 wt. % to about 65 wt. %, from about 50 wt. % to about 60 wt. %, from about 55 wt. % to about 95 wt. %, from about 65 wt. % to about 95 wt. %, or from about 75 wt. % to about 95 wt. % of the sodium acrylate polymer, based on the total weight of the composition.
In one or more embodiments, the composition may include one or more polymers in addition to the sodium acrylate polymer. In some embodiments, the composition may include the same long-chain copolymer structure with alternating acrylic acid and acrylate components having a different positively-charged ion, for example, potassium, lithium, ammonium, etc. In some embodiments, the composition may include one or more superabsorbent polymers with varying structures. The term “superabsorbent polymer” may generally be described as a water-absorbing, hydrophilic compound that may absorb and retain substantially large amounts of a liquid relative to its own mass. For example, the composition may further include one or more of a polyacrylamide copolymer, an ethylene maleic anhydride copolymer, cross-linked carboxymethylcellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymers of polyacrylonitrile.
Without being bound by a theory, it is believed that when the sodium acrylate polymer is contacted with water, the carboxyl groups of the sodium acrylate polymer are forced apart and create space for the present water molecules. As the carboxyl groups are forced apart and the water molecules move into these open spaces and bond with surrounding atoms in at least a portion of the sodium acrylate polymer, the sodium acrylate polymer increases in size and may form a composition having the consistency of a gel (which is sometimes referred to as a hydrogel). In some embodiments, the sodium acrylate polymer may absorb at least 2 times, at least 5 times, at least 20 times, at least 50 times, at least 100 times, or even at least 300 times its weight when contacted with the water.
In one or more embodiments, the composition may include antifreeze proteins. In some embodiments, the composition may include one or more types of antifreeze proteins. The term “antifreeze protein,” sometimes referred to as an “ice structuring protein,” refers to a class of proteins and/or polypeptides produced by certain animals, plants, fungi, and bacteria in order to survive at temperatures below the freezing point of water. The antifreeze proteins may bind to forming ice crystals and reduce the crystallization of these ice crystals that would otherwise form. Without being bound by a theory, it is believed that including one or more antifreeze proteins in the composition reduces the freezing point of a liquid, like water, that can be combined with the composition and results in the ice pack apparatuses achieving and maintaining a colder temperature.
In one or more embodiments, the composition may include from about 1 wt. % to about 15 wt. % of the antifreeze proteins, based on the total weight of the composition. For example, in some embodiments, the composition may include from about 2 wt. % to about 15 wt. %, from about 5 wt. % to about 15 wt. %, from about 10 wt. % to about 15 wt. %, from about 1 wt. % to about 10 wt. %, from about 1 wt. % to about 7.5 wt. %, from about 1 wt. % to about 5 wt. %, from about 2 wt. % to about 10 wt. %, or from about 3 wt. % to about 8 wt. % of the antifreeze proteins, based on the total weight of the composition.
In one or more embodiments, the antifreeze proteins may include any protein and/or polypeptide that is able to reduce the freezing point of a liquid by reducing the amount of crystallization that occurs when the liquid is introduced to normal freezing temperatures. For example, the antifreeze proteins may be a Type I antifreeze protein, a Type II antifreeze protein, a Type III antifreeze protein, a Type IV antifreeze protein, or a glycoprotein. The antifreeze proteins may have a primary structure of a (alanine-alanine-threonine) disaccharide structure, an alanine-rich alanine-alanine repeated structure, a cysteine-rich disulphide linked structure, or a glutamine, no disulphide bridge structure. The antifreeze proteins may have a secondary structure of an alpha helical amphihilic structure, a beta sheet structure, or an amphipathic alpha helical structure. The antifreeze proteins may have a tertiary structure of a 100% helix structure or a four-helix antiparallel bundle structure. In some embodiments, the antifreeze protein may originate from one or more of, and is not limited to, winter flounder (Pseudopleuronectes americanus), sculpin (Myoxocephalus Scorpius), herring (Clupea harengus), rainbow smelt (Osmerus mordax), Japanese smelt (Hypomesus nipponensis), sea raven (Hemitripterus americanus), longsnout poacher (Brachyopsis rostratus), the Zoarcoidei suborder, rye leaves (Secale cereale), wheat (Triticum aestivum), carrots (Daucus carota), ryegrass (Lolium perenne), potato (Solanum tuberosum), bittersweet (Solanum dulcamara), weeping forsythia (Forsythia suspense), Norway spruce (Picea abis), Blue spruce (Picea pungens), spruce budworm (Choristoneura fumiferana), beetles of the Dendroides, Tenebrio and Rhagium genuses, pale beauty moth (Campaea perlata), midges of the Chironomidae family, Typhula ishikariensis fungus, Lentinula edodes fungus, and/or Flammulina populicola fungus.
The antifreeze proteins may have a molecular mass of from about 1,000 Daltons to about 35,000 Daltons, such as from about 5,000 Daltons to about 35,000 Daltons, from about 10,000 Daltons to about 35,000 Daltons, from about 20,000 Daltons to about 35,000 Daltons, from about 1,000 Daltons to about 25,000 Daltons, from about 1,000 Daltons to about 20,000 Daltons, from about 1,000 Daltons to about 15,000 Daltons, from about 2,000 Daltons to about 20,000 Daltons, or from about 2,000 Daltons to about 10,000 Daltons.
In one or more embodiments, the composition may further include one or more antifreezing agents in addition to the antifreeze proteins that are able to assist in lowering the freezing point of a liquid. For example, in some embodiments, the composition may include one or more of, but is not limited to, methanol, propylene glycol, ethylene glycol, and/or glycerol.
In one or more embodiments, the composition may include sodium chloride. Without being bound by a theory, it is believed that including the sodium chloride in the composition that is contacted with water results in the Na+ ions of the dissolved sodium chloride bonding to negatively charged portions of the sodium acrylate polymer and/or additional superabsorbent polymers and Cl−ions of the dissolved sodium chloride bonding to positively-charged portions of the sodium acrylate polymer and/or additional superabsorbent polymers so that water molecules can no longer can bond to these areas. Hence, water molecules cannot sufficiently bind together at normal freezing temperatures and lower temperatures are needed in order to have enough bonding between the water molecules in order to form a solid.
In one or more embodiments, the composition may include from about 0.1 wt. % to about 10 wt. % of the sodium chloride, based on the total weight of the composition. For example, in some embodiments, the composition may include from about 0.1 wt. % to about 10 wt. %, from about 1 wt. % to about 10 wt. %, from about 2 wt. % to about 10 wt. %, from about 5 wt. % to about 10 wt. %, from about 0.1 wt. % to about 7.5 wt. %, from about 0.1 wt. % to about 5 wt. %, from about 0.1 wt. % to about 2.5 wt. %, from about 0.5 wt. % to about 7.5 wt. %, or from about 0.5 wt. % to about 5 wt. % of the sodium chloride, based on the total weight of the composition. In one or more embodiments, the composition may include sea salt. The sea salt may consist of at least 80 wt. % sodium chloride. The sea salt may consist of sodium chloride in addition to one or more of, but not limited to, calcium chloride, potassium sulfate, potassium chloride, and magnesium sulfate in addition to one or more ions including, but limited to, sodium, chloride, sulfate, magnesium, calcium, potassium, bicarbonate, bromide, borate, strontium, fluoride, and iodide.
In one or more embodiments, the composition may include one or more ionic salts in addition to the sodium chloride. Without being bound by a theory, it is believed that the ionic salt can assist the sodium chloride in reducing the freezing point of a liquid by having the positive ions from the dissolved ionic salt also bond to various negatively-charged portions of the sodium acrylate polymer and/or additional superabsorbent polymers and having the negative ions from the dissolved ionic salt also bond to various positively-charged portions of the sodium acrylate polymer and/or additional superabsorbent polymers so that water molecules cannot bind to these portions. Hence, water molecules cannot sufficiently bind together at normal freezing temperatures and lower temperatures are needed in order to have enough bonding between the water molecules in order to form a solid. For example, in some embodiments, the ionic salts may be one or more of, but are not limited to, ammonium fluoride, magnesium carbonate, iron (III) hydrogen phosphate, sodium hydroxide, sodium carbonate, sodium bicarbonate, calcium hypochlorite, potassium nitrate, boron trifluoride, copper sulfate, or calcium acetate.
In one or more embodiments, the composition may include magnesium glycinate. Without being bound by a theory, it is believed that including the magnesium glycinate in the composition that is contacted with water results in the Mg2+ ions of the dissolved magnesium glycinate bonding to negatively-charged portions of the sodium acrylate polymer and/or additional superabsorbent polymers and the C2H4NOO− components of the dissolved magnesium glycinate bonding to positively-charged portions of the sodium acrylate polymer and/or additional superabsorbent polymers so that water molecules can no longer can bond to these areas. Hence, water molecules cannot sufficiently bind together at normal freezing temperatures and lower temperatures are needed in order to have enough bonding between the water molecules in order to form a solid. In one or more embodiments, the composition may include from about 0.1 wt. % to about 10 wt. %, from about 1 wt. % to about 10 wt. %, from about 2 wt. % to about 10 wt. %, from about 5 wt. % to about 10 wt. %, from about 0.1 wt. % to about 7.5 wt. %, from about 0.1 wt. % to about 5 wt. %, from about 0.1 wt. % to about 2.5 wt. %, from about 0.5 wt. % to about 7.5 wt. %, or from about 0.5 wt. % to about 5 wt. % of the magnesium glycinate, based on the total weight of the composition.
In one or more embodiments, the composition may include one or more electrolytes. Without being bound by a theory, it is believed that the ions of the one or more electrolytes will assist the other components in the composition in reducing the contact between liquid molecules and assisting in preventing the formation of a solid. For example, in some embodiments, the one or more electrolytes may be, but are not limited to, lithium triflate (LiCF3SO3), lithium bis((trifluoromethyl)sulfonyl)amide (LiTFSI), sodium perchlorate (NaClO4), or 1-ethyl-3-methylimidazolium tetrafluoroborate.
In one or more embodiments, the composition may include from about 75 wt. % to about 95 wt. % of the sodium acrylate polymer, from about 2 wt. % to about 10 wt. % of the antifreeze proteins, from about 0.5 wt. % to about 5 wt. % of the sodium chloride, and from about 0.5 wt. % to about 5 wt. % of the magnesium glycinate, based on the total weight of the composition. In one embodiment, the composition may include 90 wt. % of the sodium acrylate polymer, 6 wt. % of the antifreeze proteins, 1 wt. % of the sodium chloride, 1 wt. % of the magnesium glycinate, and 2 wt. % of the sea salt, based on the total weight of the composition.
In some embodiments, the composition may include a colored ink or dye component that is able to change the color of at least a portion of the composition. For example, in some embodiments, the composition may include a thermochromic ink or dye that is able to change the color of the composition when a certain temperature range is met. In another example, the composition may include one or more substances that allow the composition to glow or produce photons of light. In another example, the composition may include an ink or dye that is able to allow the composition to produce one or more aesthetically pleasing colors in various hues and patterns. In one or more embodiments, the composition may include one or more substances that allow the composition to emanate a scent, such as scented dyes, scented liquids, scented powders, etc. In some embodiments, the composition may include one or more reacting agents that may facilitate additional bonding between the one or more polymers of the composition. In some embodiments, the contents of the composition may start as individual components and may be combined in whatever order in order to form the composition as described herein.
The present disclosure is also directed to ice pack apparatuses that may hold the composition as described throughout this application. According to one or more embodiments, the ice pack apparatuses may have a body that includes one or more walls, where the one or more walls define a cavity and the composition are included in the cavity of the ice pack apparatuses. The figures depicted and described herein are illustrative examples of ice pack apparatuses that may hold the composition described herein. However, it should be understood that the example ice pack apparatuses are not limiting, and other apparatuses are also contemplated and included within the scope of the present disclosure.
Referring to
Still referring to
According to one or more embodiments, the ice pack apparatus 100 may further include a nozzle 300 extending through the body 101, such as, for example, through at least one of either the front wall 102 or the back wall 202 of the body 101. The nozzle 300 may be fluidly coupled to the cavity 150 such that a substance within the cavity 150 can be removed through the nozzle 300 and/or a substance can be placed within the cavity 150 via the nozzle 300. Still referring to
According to one or more embodiments, an ice pack apparatus may have at least one light transmission section. For example,
According to one or more embodiments, the cavity of the body of an ice pack apparatus may be divided into a plurality of sections. For example, as shown in
According to one or more embodiments, the body of the ice pack apparatus may form a cylindrical structure having a hollow center portion. For example, as shown in
According to one or more embodiments, the ice pack apparatus may further include at least one internal capsule disposed within the cavity of the body. For example, as shown in
As described above, this application is directed to ice pack apparatuses and compositions. These compositions may include a sodium acrylate polymer that may absorb one or more liquids in order to form a hydrogel. The inclusion of one or more of antifreeze proteins, sodium chloride, magnesium glycinate, and sea salt in the compositions may result in lowering the freezing point of the compositions and allowing the compositions to cool an object for a longer period of time. Further, the compositions as described throughout this application may be placed in ice pack apparatuses. These ice pack apparatuses may include a body that contains a cavity that is able to hold the compositions as described herein. In addition, the ice pack apparatuses may be able to introduce one or more liquids into the cavity of the ice pack apparatuses and/or hold the compositions and the one or more liquids in the cavity of the ice pack apparatuses.
The present disclosure includes one or more non-limiting aspects. A first aspect includes a composition comprising a sodium acrylate polymer, antifreeze proteins, sodium chloride, and magnesium glycinate.
A second aspect includes any above aspect, further comprising sea salt.
A third aspect includes any above aspect, wherein the composition comprises from 50 wt. % to 99 wt. % of the sodium acrylate polymer.
A fourth aspect includes any above aspect, wherein the composition comprises from 75 wt. % to 95 wt. % of the sodium acrylate polymer.
A fifth aspect includes any above aspect, wherein the composition comprises from 1 wt. % to 15 wt. % of the antifreeze proteins.
A sixth aspect includes any above aspect, wherein the composition comprises from 1 wt. % to 15 wt. % of the antifreeze proteins.
A seventh aspect includes any above aspect, wherein the composition comprises from 0.1 wt. % to 10 wt. % of the magnesium glycinate.
An eighth aspect includes any above aspect, wherein the composition comprises from 0.5 wt. % to 5 wt. % of the magnesium glycinate.
A ninth aspect includes any above aspect, wherein the composition comprises from 0.1 wt. % to 10 wt. % of the sodium chloride.
A tenth aspect includes any above aspect, wherein the composition comprises from 0.5 wt. % to 5 wt. % of the sodium chloride.
An eleventh aspect includes any above aspect, wherein from 75 wt. % to 95 wt. % of the sodium acrylate polymer; from 2 wt. % to 10 wt. % of the antifreeze proteins; from 0.5 wt. % to 5 wt. % of the sodium chloride; and from 0.5 wt. % to 5 wt. % of the magnesium glycinate.
A twelfth aspect includes any above aspect, wherein the antifreeze proteins comprise one or more of a Type I antifreeze protein, a Type II antifreeze protein, a Type III antifreeze protein, a Type IV antifreeze protein, or a glycoprotein.
A thirteenth aspect includes a body comprising one or more walls, the one or more walls defining a cavity, wherein the cavity holds a composition comprising: a sodium acrylate polymer, antifreeze proteins, sodium chloride, and magnesium glycinate.
A fourteenth aspect includes any above aspect, wherein the one or more walls comprise a front wall and a back wall, wherein the front wall comprises an upper side, a lower side, a first side, and a second side and the back wall comprises an upper side, a lower side, a first side, and a second side; and at least a portion of the upper side of the front wall and at least a portion of the upper side of the back wall are joined together, at least a portion of the lower side of the front wall and at least a portion of the lower side of the back wall are joined together, at least a portion of the first side of the front wall and at least a portion of the first side of the back wall are joined together, and at least a portion of the second side of the front wall and at least a portion of the second side of the back wall are joined together to form the cavity.
A fifteenth aspect includes any above aspect, further comprising a nozzle extending through at least one of the one or more walls of the body, the nozzle fluidly coupled to the cavity.
A sixteenth aspect includes any above aspect, wherein at least one of the one or more walls of the body has at least one light transmission section.
A seventeenth aspect includes any above aspect, wherein the cavity is divided into a plurality of sections.
An eighteenth aspect includes any above aspect, further comprising at least one internal capsule disposed within the cavity of the body, the at least one internal capsule holding one or more components of the composition.
A nineteenth aspect includes any above aspect, wherein the body forms a cylindrical structure having a hollow center portion.
A twentieth aspect includes any above aspect, wherein at least one of the one or more walls of the body comprises aluminum and nylon.
The subject matter of the present disclosure has been described in detail and by reference to specific embodiments. It should be understood that any detailed description of a component or feature of an embodiment does not necessarily imply that the component or feature is essential to the particular embodiment or to any other embodiment. Further, it should be apparent to those skilled in the art that various modifications and variations can be made to the described embodiments without departing from the spirit and scope of the claimed subject matter.
It is noted that one or more of the following claims utilize the term “wherein” as a transitional phrase. For the purposes of defining the present technology, it is noted that this term is introduced in the claims as an open-ended transitional phrase that is used to introduce a recitation of a series of characteristics of the structure and should be interpreted in like manner as the more commonly used open-ended preamble term “comprising.”
It should be understood that where a first component is described as “comprising” a second component, it is contemplated that, in some embodiments, the first component “consists” or “consists essentially of” that second component. It should further be understood that where a first component is described as “comprising” a second component, it is contemplated that, in some embodiments, the first component comprises at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, or even at least 99% that second component (where percentages are disclosed in weight percent unless otherwise noted).
It is also noted that recitations herein of “at least one” component, element, etc., should not be used to create an inference that the alternative use of the articles “a” or “an” should be limited to a single component, element, etc.
For the purposes of describing and defining the present inventive technology it is noted that the terms “substantially” and “about” are utilized herein to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. The terms “substantially” and “about” are also utilized herein to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue.
Number | Date | Country | |
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63398572 | Aug 2022 | US |