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1. WO2020222997 - PHASE CHANGE MATERIAL FOR MEDICAL AND COSMETIC APPLICATIONS

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

1 A garment for treatment of an anatomical surface comprising:

A thermoformable retainer layer, R;

a thermoplastic elastomer gel matrix layer, G, further comprising:

a styrenic triblock copolymer;

a phase change material;

a plasticizing oil; and

a securing fabric layer, F;

wherein the garment is configured to be heated to a transition temperature of the thermoformable retainer layer such that the treatment garment can be shaped to conform to contours of the surface;

wherein said garment is formed into a composite.

2. The garment of claim 1 wherein the triblock copolymer is present in an amount between 2-30% by weight.

3. The garment of claim 1 wherein the phase change material has a phase change temperature between 45° C and 65° C and is selected from the group consisting of paraffins, linear alpha olefins having a carbon number of 24 to 30, lipid-soluble alcohols, lipid-soluble esters, hydrogenated vegetable oils, and non-hydrogenated vegetable oils.

4. The garment of claim 3 wherein the phase change material is present in an amount between 20-70% by weight.

5. The garment of claim 3 wherein the plasticizing oil is present in an amount

between 30-80% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature,

hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

6. The garment of claim 3 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

7. The garment of claim 3 wherein the thermoplastic elastomeric gel matrix layer further comprises a lipid soluble additive in an amount between 0-10% by weight.

8. The garment of claim 1 wherein the phase change material has a phase change temperature between -10° C and 20° C and is selected from the group consisting of N-alkanes, N-alkenes, linear alpha olefins having a carbon number of 14 to 18, lipid-soluble alcohols, lipid-soluble esters, and vegetable oils.

9. The garment of claim 8 wherein the plasticizing oil is present in an amount

between 0-70% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

10. The garment of claim 8 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

11. The garment of claim 8 wherein the thermoplastic elastomeric gel matrix layer further comprises a lipid soluble additive in an amount between 0-10% by weight.

12. The garment of claim 1 wherein the composite is structured FRG.

13. The garment of claim 1 where the composite is structured FRFG.

14. The garment of claim 1 wherein the retainer comprises a polymer able to be thermoformed at a temperature of 60 degrees Celsius or less.

15. The garment of claim 12 wherein the retainer comprises ethyl vinyl acetate.

16. The garment of claim 12 wherein the retainer comprises polycaprolactone.

17. The garment of claim 1 wherein the styrenic triblock copolymer is a selected amount of one or more of a poly(styrene-butadiene-styrene), poly(styrene- isoprene- styrene), poly(styrene-isoprene-butadiene-styrene), poly(styrene- ethylene-butylene-styrene), poly(styrene-ethylene-propylene-styrene), or poly(styrene-ethylene-ethylene-propylene-styrene).

18. A garment for treatment of a biological surface comprising:

a thermoplastic elastomer gel layer, G, comprising:

a styrenic triblock copolymer;

an alkane;

a phase change material; and

a plasticizing agent;

a fabric layer, F; and

wherein said garment is formed into a composite, FG.

19. The garment of claim 18 wherein the triblock copolymer is present in an amount between 2-30% by weight.

20. The garment of claim 18 wherein the phase change material has a phase change temperature between 45° C and 65° C and is selected from the group consisting of paraffins, linear alpha olefins having a carbon number of 24 to 30, lipid-soluble alcohols, lipid-soluble esters, hydrogenated vegetable oils, and non-hydrogenated vegetable oils.

21. The garment of claim 20 wherein the phase change material is present in an

amount between 20-70% by weight.

22. The garment of claim 20 wherein the plasticizing oil is present in an amount between 30-80% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

23. The garment of claim 20 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

24. The garment of claim 18 wherein the wherein the thermoplastic elastomer gel layer further comprises a lipid soluble additive in an amount between 0-10% by weight.

25. The garment of claim 18 wherein the phase change material has a phase change temperature between -10° C and 20° C and is selected from the group consisting of N-alkanes, N-alkenes, linear alpha olefins having a carbon number of 14 to 18, lipid-soluble alcohols, lipid-soluble esters, and vegetable oils.

26. The garment of claim 25 wherein the plasticizing oil is present in an amount between 0-70% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

27. The garment of claim 18 further comprising a thermoformable retainer layer, R, included between the fabric layer and the thermoplastic elastomer gel layer forming a composite FRG.

28. The garment of claim 27 wherein the thermoformable retainer layer comprises a polymer able to be molded at a temperature of 60 degrees Celsius or less.

29. The garment of claim 28 wherein the polymer comprises ethyl vinyl acetate.

30. The garment of claim 28 wherein the polymer comprises polycaprolactone.

31. The garment of claim 18 wherein the triblock copolymer is a selected amount of one or more of a poly(styrene-butadiene-styrene), poly(styrene-isoprene-styrene), poly(styrene-isoprene-butadiene-styrene), poly(styrene-ethylene-butylene- styrene), poly(styrene-ethylene-propylene-styrene), or poly(styrene-ethylene- ethy 1 ene-propy lene- styrene) .

32. A garment for treatment of a biological surface comprising:

a thermoplastic elastomer gel matrix further comprising:

a styrenic triblock copolymer where the triblock copolymer is a selected amount of one or more of a poly(styrene-butadiene- styrene), poly(styrene-isoprene-styrene), poly(styrene-isoprene- butadiene-styrene), poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-propylene-styrene), or polystyrene- ethyl ene-ethy 1 ene-propy 1 ene- styrene) ;

a phase change material; and

a plasticizing oil.

33. The garment of claim 32 wherein the triblock copolymer is present in an amount between 2-30% by weight.

34. The garment of claim 32 wherein the phase change material has a phase change temperature between 45° C and 65° C and is selected from the group consisting of paraffins, linear alpha olefins having a carbon number of 24 to 30, lipid-soluble alcohols, lipid-soluble esters, hydrogenated vegetable oils, and non-hydrogenated vegetable oils.

35. The garment of claim 34 wherein the phase change material is present in an

amount between 20-70% by weight.

36. The garment of claim 34 wherein the plasticizing oil and is present in an amount between 30-80% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

37. The garment of claim 34 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

38. The garment of claim 34 wherein the thermoplastic elastomeric gel matrix further comprises a lipid soluble additive in an amount between 0-10% by weight.

39. The garment of claim 32 wherein the phase change material has a phase change temperature between -10° C and 20° C and is selected from the group consisting of N-alkanes, N-alkenes, linear alpha olefins having a carbon number of 14 to 18, lipid-soluble alcohols, lipid-soluble esters, and vegetable oils.

40. The garment of claim 39 wherein the plasticizing oil is present in an amount between 0-70% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

41. The garment of claim 39 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

42. The garment of claim 39 wherein the thermoplastic elastomer gel matrix further comprises a lipid soluble additive in an amount between 0-10% by weight.

43. The garment of claim 39 further comprising a thermoformable retainer layer, R, attached to the thermoplastic elastomer gel, G, forming a composite RG.

44. The garment of claim 43 wherein the thermoformable retainer layer comprises a polymer able to be thermoformable at a temperature of 60 degrees Celsius or less.

45. The garment of claim 44 wherein the retainer comprises ethyl vinyl acetate.

46. The garment of claim 44 wherein the retainer comprises polycaprolactone.

47. The garment of claim 32 further comprising a fabric layer, F, attached to the

thermoplastic elastomer gel, G, forming a composite FG.

48. The garment of claim 44 further comprising a fabric layer, F, attached to the

thermoformable retainer layer forming a composite FRG.

49. A method of applying a garment to a user to assist in wound treatment or

cosmetic care comprising:

preparing a garment further comprising:

a thermoformable retainer layer, R;

a thermoplastic elastomer gel matrix layer, G, further comprising: a styrenic triblock copolymer;

a phase change material;

a plasticizing oil; and

a securing fabric layer, F;

wherein the garment is configured to be heated to a transition temperature of the thermoformable retainer such that the garment can be shaped to conform to contours of a surface;

heating the treatment garment such that the thermoformable retainer reaches a transition temperature;

applying the treatment garment to the surface; and

securing the garment to the surface.

50. The method of claim 49 wherein the triblock copolymer is present in an amount between 2-30% by weight.

51. The method of claim 49 wherein the phase change material has a phase change temperature between 45° C and 65° C and is selected from the group consisting of paraffins, linear alpha olefins having a carbon number of 24 to 30, lipid-soluble alcohols, lipid-soluble esters, hydrogenated vegetable oils, and non-hydrogenated vegetable oils.

52. The method of claim 51 wherein the phase change material is present in an

amount between 20-70% by weight.

53. The method of claim 51 wherein the plasticizing oil is present in an amount between 30-80% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, and hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

54. The garment of claim 51 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

55. The method of claim 51 wherein the thermoplastic elastomeric gel matrix layer further comprises a lipid soluble additive in an amount between 0-10% by weight.

56. The method of claim 49 wherein the phase change material has a phase change temperature between -10° C and 20° C and is selected from the group consisting of N-alkanes, N-alkenes, linear alpha olefins having a carbon number of 14 to 18, lipid-soluble alcohols, lipid-soluble esters, and vegetable oils.

57. The method of claim 56 wherein the plasticizing oil is present in an amount

between 0-70% by weight and is selected from the group consisting essentially of mineral oils that are liquid at room temperature, vegetable oils that are liquid at room temperature, normal alpha olefins that are liquid at room temperature, hydrocarbon mixtures that are liquid at room temperature, and synthetic oils that are liquid at room temperature.

58. The garment of claim 57 wherein the plasticizing oil has a viscosity between 50 and 300 centi stokes.

59. The method of claim 57 wherein the thermoplastic elastomeric gel matrix layer

further comprises a lipid soluble additive in an amount between 0-10% by weight.

60. The method of claim 57 further comprising the steps of allowing the garment to cool after securing the garment to the surface, lowering the temperature of the garment to between -10° C and 20° C, and then re-securing the garment to the surface.

61. The method of claim 57 wherein the thermoformable retainer layer comprises a polymer able to be thermoformable at a temperature of 60 degrees Celsius or less.

62. The method of claim 61 wherein the retainer comprises ethyl vinyl acetate.

63. The method of claim 61 wherein the retainer comprises polycaprolactone.

64. The method of claim 57 wherein the composite has the structure FRG.

65. The method of claim 57 wherein the composite has the structure FRFG.

66. The method of claim 57 wherein the triblock copolymer is a selected amount of one or more of a poly(styrene-butadiene-styrene), poly(styrene-isoprene-styrene), poly(styrene-isoprene-butadiene-styrene), poly(styrene-ethylene-butylene- styrene), poly(styrene-ethylene-propylene-styrene), or poly(styrene-ethylene- ethy 1 ene-propy lene- styrene) .