Functional Polymeric Phase Change Materials and Methods of Manufacturing the Same

• US 20100016513A1
• Filed: 07/16/2008
• Published: 01/21/2010
• Est. Priority Date: 07/16/2008
• Status: Abandoned Application

• Current Assignee: Outlast Technologies, Incorporated
• Original Assignee: Outlast Technologies, Incorporated
• Inventors: Eyal, Aharon, Hartmann, Mark
• Application Number:
  US12/174,607
• Publication Number:
  US 20100016513A1
• Time in Patent Office: Days
• US Class Current: 525/327.300
• 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: C08L 101/02 characterised by the presence of specified groups , e.g. terminal or pendant functional groups
• CPC Class Codes: C08L 101/12 characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity liquid crystal materials or compositions C09K19/00
• CPC Class Codes: C08L 33/068 containing glycidyl groups
• CPC Class Codes: C08L 33/14 of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: C09K 5/063 Materials absorbing or liberating heat during crystallisation; Heat storage materials
• 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: F28D 20/02 using latent heat
• CPC Class Codes: Y02E 60/14 Thermal energy storage

Abstract

A composition comprising a functional polymeric phase change material, the functional polymeric phase change material carrying at least one reactive function, wherein the reactive function is capable of forming at least a first covalent bond. In certain embodiments, the reactive function is capable of forming at least a first covalent bond with a second material. In other embodiments, the functional polymeric phase change material comprises at least one crystallizable section and may also comprise a backbone chain and a plurality of side chains, wherein the plurality of side chains form the crystallizable section.

Claims

1. A composition, comprising:

a functional polymeric phase change material, the functional polymeric phase change material carrying at least one reactive function, wherein the reactive function is capable of forming at least a first covalent bond.

2. The composition of claim 1, wherein the reactive function is capable of forming at least a first covalent bond with a second material.

3. The composition of claim 1, wherein the functional polymeric phase change material comprises at least one crystallizable section.

4. The composition of claim 3 wherein the functional polymeric phase change material comprises a backbone chain and a plurality of side chains, wherein the plurality of side chains form the crystallizable section.

5. The composition of claim 4, wherein the at least one reactive function is carried on at least one of the side chains.

6. The composition of claim 4, wherein the at least one reactive function is carried on the backbone chain.

7. The composition of claim 6, comprising a plurality of reactive functions spread at substantially regular intervals along the backbone chain.

8. The composition of claim 6, comprising a plurality of reactive functions spread at random intervals along the backbone chain.

9. The composition of claim 4, wherein the at least one reactive function is carried at one end of the backbone chain.

10. The composition of claim 1, wherein the reactive function is selected from the group consisting of glycidyl, epoxy, anhydride, isocyanate, cyanate, amino, amido, imines, imides, azides, azo, amine-formaldehyde, silane, esters, ether, halogenated leaving groups, peroxide, salts, hydroxyl, carboxyl, carbonate, aldehyde, ketone, double bonds, triple bonds, sulfer, sulfite, sulfide, sulfate, sulfurous, phosphor, phosphite, phosphide, phosphate, phosphorous, and combinations of the foregoing.

11. The composition of claim 2, wherein the second material is selected from the group consisting of cotton, wool, fur leather, polyester, cellulosic materials, proteinaceous materials, natural materials, regenerated materials, synthetic materials, and textiles made from the foregoing materials.

12. The composition of claim 1, wherein the functional polymeric phase change material is a first phase change material, and the composition further comprises a second phase change material, wherein the first phase change material has a first phase change temperature and the second phase change material has a second phase change temperature.

13. The composition of claim 1, wherein the functional polymeric phase change material has a plurality of phase change temperatures.

14. The composition of claim 1, wherein the functional polymeric phase change material has a transition temperature in the range between −

10°

C. and 100°

C.

15. The composition of claim 1, wherein the functional polymeric phase material has a phase change enthalpy of at least 25 J/g.

16. The composition of claim 1, wherein the functional polymeric phase change material includes at least one reactive function per 10,000 molecular weight units.

17. The composition of claim 3, wherein the at least one crystallizable section is hydrophilic.

18. The composition of claim 3, wherein the at least one crystallizable section is hydrophobic.

19. The composition of claim 1 further comprising at least one crystallizable segment, the at least one crystallizable segment comprising a combination of hydrophilic and hydrophobic segments.

20. The composition of claim 1, wherein the reactive function is stereospecific.

21. The composition of claim 3, wherein the cyrstallizable section is stereospecific.

22. The composition of claim 1, wherein the functional polymeric phase change material has a polydispersity of between 1.0 and 100.

23. The composition of claim 1, wherein the functional polymeric phase change material has a polydispersity of between 1.0 and 5.0.

24. A functional polymeric phase change material characterized in carrying at least one reactive function, wherein the reactive function is capable of forming a covalent bond.

25. The functional polymeric phase change material of claim 24, wherein the reactive function is capable of forming at least a first covalent bond with a second material.

26. The functional polymeric phase change material of claim 24, wherein the functional polymeric phase change material comprises at least one crystallizable section.

27. The functional polymeric phase change material of claim 24 wherein the functional polymeric phase change material comprises a backbone chain and a plurality of side chains, wherein the plurality of side chains form the crystallizable section.

28. The functional polymeric phase change material of claim 24, comprising a plurality of reactive functions spread at random intervals along the backbone chain.

29. The functional polymeric phase change material of claim 24, wherein the reactive function is selected from the group consisting of glycidyl, epoxy, anhydride, isocyanate, cyanate, amino, amido, imines, imides, azides, azo, amine-formaldehyde, silane, esters, ether, halogenated leaving groups, peroxide, salts, hydroxyl, carboxyl, carbonate, aldehyde, ketone, double bonds, triple bonds, sulfer, sulfite, sulfide, sulfate, sulfurous, phosphor, phosphite, phosphide, phosphate, phosphorous, and combinations of the foregoing.

30. A preparation, comprising:

a functional polymeric phase change material, the functional polymeric phase change material carrying at least one reactive function, wherein the reactive function is capable of forming at least a first covalent bond.

31. A preparation according to claim 30, further comprising at least one of an organic solvent, an aqueous medium, a binder, a catalyst for the reaction of said reactive function and combinations thereof.

32. A method for the production of functional polymeric phase change material, comprising:

providing a reactive function carrying polymerizable monomer;

providing a side chain forming compound;

polymerizing the momoner; and

attaching the side chain forming compound.

33. The method of claim 32, further comprising forming a reactive functions carrying polymeric backbone and reacting the reactive functions on the polymeric backbone with the side chain forming compound.

34. The method of claim 32, further comprising

reacting the side chain forming compound with the reactive functions on said monomer to form a side-chain carrying monomer;

and

polymerizing the side-chain carrying monomer.

39. The method of claim 33, wherein polymerizing a reactive function carrying monomer forms a reactive functions carrying crystallizable backbone polymer.

40. The method of claim 32, wherein polymerizing the reactive carrying monomer comprises at least one of the methods selected from the group consisting of organic, aqueous or inorganic polymerizations, solid state, batch, continuous, gas phase, or plasma polymerizations, UV, sonic, thermal, pressure, or light initiated polymerizations, free radical, living, cationic, anionic, metallic, metallocene, Ziegler-Natta or group transfer polymerizations, Condensation, addition, ring-opening, or olefin metathesis polymerizations, Enzyme, bio-based, or natural polymerizations

35. The method of 34, wherein polymerizing the side-chain carrying monomer includes a mixture comprising at least the side-chain carrying monomer and the reactive function carrying polymerizable monomer.

36. The method of 33, wherein less than 100% of the reactive functions on said polymeric backbone are reacted with said side chain forming compound.

37. The method of 36, wherein a fraction of said reactive functions on said polymeric backbone are reacted with a protecting group before reacting at least part of the rest with said side chain forming compound.

38. The method of 37, further comprising a step of removing at least part of the protecting groups after said reacting at least part of the rest with said side chain forming compound.