Articles Containing Functional Polymeric Phase Change Materials and Methods of Manufacturing the Same

• US 20100015869A1
• Filed: 08/05/2008
• Published: 01/21/2010
• Est. Priority Date: 07/16/2008
• Status: Active Grant

• Current Assignee: Outlast Technologies GmbH
• Original Assignee: Outlast Technologies, Incorporated
• Inventors: Eyal, Aharon, Hartmann, Mark
• Granted Patent: US 9,234,059 B2
• Time in Patent Office: Days
• US Class Current: 442/59
• CPC Class Codes: C08F 120/32 containing epoxy radicals
• CPC Class Codes: C08F 220/1818 C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
• CPC Class Codes: C08F 220/325 containing glycidyl radical, e.g. glycidyl (meth)acrylate
• CPC Class Codes: C08F 8/14 Esterification
• CPC Class Codes: C09K 5/063 Materials absorbing or liberating heat during crystallisation; Heat storage materials
• CPC Class Codes: D01F 1/10 Other agents for modifying properties
• CPC Class Codes: D01F 2/28 from organic cellulose esters or ethers, e.g. cellulose acetate
• CPC Class Codes: D01F 6/38 comprising unsaturated nitriles as the major constituent
• CPC Class Codes: D06M 15/263 of unsaturated carboxylic acids; Salts or esters thereof
• CPC Class Codes: D06M 15/273 of unsaturated carboxylic esters having epoxy groups
• CPC Class Codes: D06M 2101/06 cellulosic
• CPC Class Codes: D06M 2400/01 Creating covalent bondings between the treating agent and the fibre
• CPC Class Codes: Y10T 428/249921 Web or sheet containing structurally defined element or component
• CPC Class Codes: Y10T 428/249953 Composite having voids in a component [e.g., porous, cellular, etc.]
• CPC Class Codes: Y10T 428/2933 Coated or with bond, impregnation or core
• CPC Class Codes: Y10T 428/2964 Artificial fiber or filament
• CPC Class Codes: Y10T 428/31743 Next to addition polymer from unsaturated monomer[s]
• CPC Class Codes: Y10T 428/31855 Of addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/3188 Next to cellulosic
• CPC Class Codes: Y10T 442/20 Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer

Abstract

An article comprises a substrate and a functional polymeric phase change material bound to the substrate. In some aspects the functional polymeric phase change material is chemically bound to the substrate and can be accomplished by at least one of covalent bonding or electrovalent bonding. The functional polymeric phase change material can comprise a reactive function selected from the group consisting of an acid anhydride group, an alkenyl group, an alkynyl group, an alkyl group, an aldehyde group, an amide group, an amino group and their salts, a N-substituted amino group, an aziridine, an aryl group, a carbonyl group, a carboxy group and their salts, an epoxy group, an ester group, an ether group, a glycidyl group, a halo group, a hydride group, a hydroxy group, an isocyanate group, a thiol group, a disulfide group, a silyl or silane group, an urea group, and an urethane group, and wherein the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon. Methods of producing the articles are also disclosed.

Claims

1. An article comprising:

a substrate; and

a functional polymeric phase change material bound to the substrate.

2. An article according to claim 1, wherein the functional polymeric phase change material is chemically bound to the substrate.

3. An article according to claim 2, wherein the chemical bonding is at least one of covalent bonding or electrovalent bonding.

4. An article according to claim 2, wherein the bonding is accomplished through direct bonding.

5. An article according to claim 2, wherein the bonding is accomplished by a connecting compound.

6. An article according to claim 1, further comprising at least one ingredient selected from a group consisting of an additional functional polymeric phase change material, an additional phase change material, encapsulated phase change materials, a binder, a formulation, an additive, crosslinkers, blending polymers, compatibilizers, wetting agents, and combinations of the foregoing.

7. An article according to claim 1, wherein the substrate is selected from the group consisting of textiles, natural fibers, fur, synthetic fibers, regenerated fibers, woven fabric, knit fabric, nonwoven fabric, foams, paper, leather, plastic, polymeric layers, plastic films, plastic sheets, laminates or combinations of the foregoing.

8. An article according to claim 1, wherein the functional polymeric phase change material comprises a reactive function selected from the group consisting of an acid anhydride group, an alkenyl group, an alkynyl group, an alkyl group, an aldehyde group, an amide group, an amino group and their salts, a N-substituted amino group, an aziridine, an aryl group, a carbonyl group, a carboxy group and their salts, an epoxy group, an ester group, an ether group, a glycidyl group, a halo group, a hydride group, a hydroxy group, an isocyanate group, a thiol group, a disulfide group, a silyl or silane group, an urea group, and an urethane group, and wherein the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon.

9. An article according to claim 2, wherein the functional polymeric phase change material comprises an anhydride function and the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon.

10. An article according to claim 2, wherein the functional polymeric phase change material comprises an isocyanate function and the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon.

11. An article according to 2, wherein the functional polymeric phase change material comprises a reactive function selected from a group consisting of an amine function and an amide function and the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon.

12. An article according to claim 2, wherein the functional polymeric phase change material comprises a silane function and the substrate comprises at least one of cellulose, wool, fur, leather, polyester and nylon.

13. An article according to claim 2, wherein the functional polymeric phase change material comprises a double bond.

14. An article according to claim 1, characterized in having at least one phase change temperature in the range between −

10°

C. and 100°

C.

15. An article according to claim 1, characterized in having phase change enthalpy of at least 2.0 Joules per gram.

16. An article according to claim 1, wherein the functional polymeric phase change material comprises a hydrophilic crystallizable section.

17. An article according to claim 1, wherein the functional polymeric phase change material comprises a hydrophobic crystallizable section.

18. An article according to claim 1 wherein the substrate comprises at least one of starch and modified starch.

19. The article of claim 18 wherein the modified starch is selected from the group consisting of hydroxyethyl starch, hydroxypropyl starch, starch acetate, starch phosphate, starch, cationic starches, anionic starches and combinations of the foregoing.

20. A method of producing an article, comprising

providing a functional polymeric phase change material,

providing a substrate;

and

combining the functional polymeric phase change material with the substrate.

21. A method according to claim 20, wherein the substrate carries at least one reactive function and wherein combining the functional polymeric phase change material with the substrate comprises chemically reacting a functional group of the functional polymeric phase change material with a functional group of the substrate.

22. A precursor for the production of an article, wherein the precursor comprises a functional polymeric phase change material and at least one other ingredient.

23. A precursor according to claim 22, wherein the at least one other ingredient is selected from the group consisting of an organic solvent, an aqueous solvent, another functional polymeric phase change material, another phase change material, microcapsules comprising phase change material, binders, crosslinkers, blending polymers, compatibilizers, wetting agents, additives, and combinations of the foregoing.

24. A method of producing an article comprising:

providing a precursor comprising a functional polymeric phase change material,

providing a substrate, and

combining the functional polymeric phase change material of the precursor with the substrate.

25. A method according to claim 24, wherein the substrate carries at least one reactive function and combining the functional polymeric phase change material of the precursor with the substrate comprises chemically reacting a functional group of the functional polymeric phase change material with a functional group of the substrate.