Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D02G-003/00
B32B-015/02
B32B-012/02
B32B-019/00
D04H-005/00
출원번호
US-0052232
(2002-01-15)
발명자
/ 주소
Magill, Monte C.
Hartmann, Mark H.
Haggard, Jeffrey S.
대리인 / 주소
Cooley Godward LLP
인용정보
피인용 횟수 :
71인용 특허 :
144
초록▼
The invention relates to a multi-component fiber having enhanced reversible thermal properties and methods of manufacturing thereof. The multi-component fiber comprises a fiber body formed from a plurality of elongated members, at least one of the elongated members comprising a temperature regulatin
The invention relates to a multi-component fiber having enhanced reversible thermal properties and methods of manufacturing thereof. The multi-component fiber comprises a fiber body formed from a plurality of elongated members, at least one of the elongated members comprising a temperature regulating material dispersed therein. The temperature regulating material comprises a phase change material. The multi-component fiber may be formed via a melt spinning process or a solution spinning process and may be used or incorporated in various products where a thermal regulating property is desired. For example, the multi-component fiber may be used in textiles, apparel, footwear, medical products, containers and packagings, buildings, appliances, and other products.
대표청구항▼
1. A multi-component fiber having enhanced reversible thermal properties, comprising:a fiber body formed from a plurality of elongated members, at least one of the elongated members comprising a polymeric phase change material having a transition temperature in the range of 22° C. to 40° C., wherein
1. A multi-component fiber having enhanced reversible thermal properties, comprising:a fiber body formed from a plurality of elongated members, at least one of the elongated members comprising a polymeric phase change material having a transition temperature in the range of 22° C. to 40° C., wherein the polymeric phase change material provides thermal regulation based on at least one of melting and crystallization of the polymeric chase change material at the transition temperature. 2. The multi-component fiber of claim 1, wherein the transition temperature of the polymeric phase change material is in the range of 22° C. to 28° C.3. The multi-component fiber of claim 1, wherein the polymeric phase change material is selected from the group consisting of polyethylene, polypropylene, polypropylene glycol, polytetramethylene glycol, polypropylene malonate, polyneopentyl glycol sebacate, polypentane glutarate, polyvinyl myristate, polyvinyl stearate, polyvinyl laurate, polyhexadecyl methacrylate, polyoctadecyl methacrylate, polyethylene glycol, polyethylene oxide, and polyesters.4. The multi-component fiber of claim 1, wherein the at least one of the elongated members comprises from 10 percent to 90 percent of a total weight of the multi-component fiber.5. The multi-component fiber of claim 1, wherein the at least one of the elongated members comprises from 5 percent to 70 percent by weight of the polymeric phase change material.6. The multi-component fiber of claim 1, wherein the elongated members are arranged in an island-in-sea configuration, a segmented-pie configuration, a core-sheath configuration, a side-by-side configuration, or a striped configuration.7. The multi-component fiber of claim 1, wherein a cross sectional shape of the fiber body is circular, multi-lobal, octagonal, oval, pentagonal, rectangular, square-shaped, trapezoidal, or triangular.8. The multi-component fiber of claim 1, wherein the fiber body is between 0.1 and 1000 denier.9. The multi-component fiber of claim 1, further comprising an additive dispersed within at least one of the elongated members, wherein the additive is selected from the group consisting of water, surfactants, dispersants, anti-foam agents, antioxidants, thermal stabilizers, light stabilizers, UV stabilizers, microwave absorbing additives, reinforcing fibers, conductive fibers, conductive particles, lubricants, process aids, fire retardants, anti-blocking additives, anti-fogging additives, anti-static additives, anti-microbials, crosslinkers, controlled degradation agents, colorants, pigments, dyes, fluorescent whitening agents, optical brighteners, fillers, coupling agents, reinforcement agents, crystallization agents, nucleation agents, and mixtures thereof.10. A multi-component fiber having enhanced reversible thermal properties, comprising:a first elongated member comprising a first polymeric material and a first temperature regulating material dispersed within the first polymeric material; and a second elongated member comprising a second polymeric material, wherein the second temperature regulating material dispersed with the second polymeric material, wherein the second elongated member is joined with the first elongated member. 11. The multi-component fiber of claim 10, wherein the temperature regulating material comprises a phase change material.12. The multi-component fiber of claim 11, wherein the phase change material is a hydrocarbon or a mixture of hydrocarbons.13. The multi-component fiber of claim 11, wherein the temperature regulating material further comprises a plurality of microcapsules that contain the phase change material.14. The multi-component fiber of claim 13, wherein the first polymeric material has an affinity for the microcapsules to facilitate dispersing the microcapsules within the first polymeric material.15. The multi-component fiber of claim 11, wherein the phase change material has a transition temperature in the range of 22° C. to 40° C.16. The multi-component fiber of claim 10, wherein the first temperature regulating material and the second temperature regulating material are different.17. The multi-component fiber of claim 10, wherein the first polymeric material and the second polymeric material are independently selected from the group consisting of polyamides, polyamines, polyimides, polyacrylics, polycarbonates, polydienes, polyepoxides, polyesters, polyethers, polyfluorocarbons, formaldehyde polymers, natural polymers, polyolefins, polyphenylenes, silicon containing polymers, polyurethanes, polyvinyls, polyacetals, polyarylates, copolymers, and mixtures thereof.18. The multi-component fiber of claim 10, wherein the first polymeric material comprises polyethylene-co-vinyl acetate having between 5 percent and 90 percent by weight of vinyl acetate.19. The multi-component fiber of claim 10, wherein the first elongated member is surrounded by the second elongated member.20. The multi-component fiber of claim 19, wherein the first elongated member is positioned within and completely surrounded by the second elongated member.21. The multi-component fiber of claim 10, wherein the first elongated member comprises from 10 percent to 90 percent of a total weight of the multi-component fiber.22. The multi-component fiber of claim 10, wherein the multi-component fiber is between 0.1 and 1000 denier.23. The multi-component fiber of claim 10, further comprising an additive dispersed within at least one of the first polymeric material and the second polymeric material, wherein the additive is selected from the group consisting of water, surfactants, dispersants, anti-foam agents, antioxidants, thermal stabilizers, light stabilizers, UV stabilizers, microwave absorbing additives, reinforcing fibers, conductive fibers, conductive particles, lubricants, process aids, fire retardants, anti-blocking additives, anti-fogging additives, anti-static additives, anti-microbials, crosslinkers, controlled degradation agents, colorants, pigments, dyes, fluorescent whitening agents, optical brighteners, fillers, coupling agents, reinforcement agents, crystallization agents, nucleation agents, and mixtures thereof.24. A multi-component fiber having enhanced reversible thermal properties, comprising:a core member comprising a first temperature regulating material dispersed therein, wherein the first temperature regulating material comprises a phase change material having a transition temperature in the range of ?50° C. to 125° C. and a plurality of microcapsules that contain the phase change material; and a sheath member surrounding the core member, wherein the sheath member comprises a second temperature regulating material dispersed therein. 25. The multi-component fiber of claim 24, wherein the transition temperature of the phase change material is in the range of 22° C. to 40° C.26. The multi-component fiber of claim 24, wherein the phase change material is selected from the group consisting of hydrocarbons, hydrated salts, waxes, oils, water, fatty acids, fatty acid esters, dibasic acids, dibasic esters, 1-halides, primary alcohols, aromatic compounds, clathrates, semi-clathrates, gas clathrates, stearic anhydride, ethylene carbonate, polyhydric alcohols, polymers, metals, and mixtures thereof.27. The multi-component fiber of claim 24, wherein the phase change material is a paraffinic hydrocarbon having from 13 to 28 carbon atoms.28. The multi-component fiber of claim 24, wherein the core member further comprises a first polymeric material, wherein the first temperature regulating material is dispersed within the first polymeric material, wherein the sheath member further comprises a second polymeric material, and wherein the second temperature regulating material is dispersed within the second polymeric material.29. The multi-component fiber of claim 28, wherein the core member comprises from 10 percent to 30 percent by weight of the first temperature regulating material.30. The multi-component fiber of claim 28, wherein the first polymeric material has an affinity for the microcapsules, and wherein the second polymeric material encloses the phase change material within the core member and provides a desired physical property to the multi-component fiber.31. The multi-component fiber of claim 28, wherein the phase change material is a first phase change material, wherein the plurality of microcapsules is a first plurality of microcapsules, and wherein the second temperature regulating material comprises a second phase change material having a transition temperature in the range of ?5° C. to 125° C. and a second plurality of microcapsules that contain the second phase change material.32. The multi-component fiber of claim 31, wherein the first phase change material and the second phase change material are different.33. The multi-component fiber of claim 28, wherein the first polymeric material and the second polymeric material are independently selected from the group consisting of polyamides, polyamines, polyimides, polyacrylics, polycarbonates, polydienes, polyepoxides, polyesters, polyethers, polyfluorocarbons, formaldehyde polymers, natural polymers, polyolefins, polyphenylenes, silicon containing polymers, polyurethanes, polyvinyls, polyacetals, polyarylates, copolymers, and mixtures thereof.34. The multi-component fiber of claim 24, wherein the core member is positioned within and completely surrounded by the sheath member.35. The multi-component fiber of claim 24, wherein the core member is concentrically positioned within the sheath member.36. The multi-component fiber of claim 24, wherein the core member is eccentrically positioned within the sheath member.37. The multi-component fiber of claim 24, wherein a cross sectional shape of the core member is circular, multi-lobal, octagonal, oval, pentagonal, rectangular, square-shaped, trapezoidal, triangular, or wedge-shaped.38. The multi-component fiber of claim 24, wherein the multi-component fiber is between 0.1 and 1000 denier.39. The multi-component fiber of claim 24, further comprising an additive dispersed within at least one of the core member and the sheath member, wherein the additive is selected from the group consisting of water, surfactants, dispersants, anti-foam agents, antioxidants, thermal stabilizers, light stabilizers, UV stabilizers, microwave absorbing additives, reinforcing fibers, conductive fibers, conductive particles, lubricants, process aids, fire retardants, anti-blocking additives, anti-fogging additives, anti-static additives, anti-microbials, crosslinkers, controlled degradation agents, colorants, pigments, dyes, fluorescent whitening agents, optical brighteners, fillers, coupling agents, reinforcement agents, crystallization agents, nucleation agents, and mixtures thereof.40. A fiber having enhanced reversible thermal properties, comprising:at least one inner member extending through substantially the length of the fiber and comprising a blend of a first polymeric material and a non-encapsulated phase change material having a transition temperature in the range of 22° C. to 40° C., wherein the non-encapsulated phase change material provides thermal regulation based on at least one of absorption and release of a latent heat at the transition temperature, and wherein the non-encapsulated phase change material is selected from the group consisting of solid/solid phase change materials and polymeric phase change materials; and an outer member surrounding the inner member and forming the exterior of the fiber, wherein the outer member comprises a second polymeric material. 41. The fiber of claim 40, wherein the first polymeric material and the second polymeric material are independently selected from the group consisting of polyolefins, polyamides, polyesters, elastomeric polymers, and mixtures thereof.42. The fiber of claim 41, wherein the first polymeric material and the second polymeric material are polyolefins independently selected from the group consisting of polyethylene, polypropylene, and mixtures thereof.43. The fiber of claim 40, wherein the inner member comprises from 10 percent to 90 percent of a total weight of the fiber.44. The fiber of claim 40, wherein the transition temperature of the non-encapsulated phase change material is in the range of 22° C. to 28° C.45. The fiber of claim 40, wherein the non-encapsulated phase change material is selected from the group consisting of polyethylene, polypropylene, polypropylene glycol, polytetramethylene glycol, polypropylene malonate, polyneopentyl glycol sebacate, polypentane glutarate, polyvinyl myristate, polyvinyl stearate, polyvinyl laurate, polyhexadecyl methacrylate, polyoctadecyl methacrylate, polyethylene oxides, polyethylene glycols, polyesters, and mixtures thereof.46. The fiber of claim 40, wherein the non-encapsulated phase change material is a polyhydric alcohol.47. The fiber of claim 40, wherein the inner member comprises at least two non-encapsulated phase change materials.48. The fiber of claim 40, wherein the inner member comprises up to 50 percent by weight of the non-encapsulated phase change material.49. The fiber of claim 40, wherein the inner member comprises up to 25 percent by weight of the non-encapsulated phase change material.50. The fiber of claim 40, wherein portions of the non-encapsulated phase change material are enclosed by the first polymeric material.51. The fiber of claim 40, wherein the inner member is a single inner member defining a core within the fiber.52. The fiber of claim 40, wherein the fiber comprises a plurality of inner members separated from each other and surrounded by the outer member.53. The fiber of claim 40, wherein the fiber is a continuous fiber or a staple fiber.54. A core/sheath fiber comprising:a core member positioned within and extending through substantially the length of the fiber, wherein the core member comprises a blend of a first polymeric material and a non-encapsulated phase change material, wherein the first polymeric material has a partial affinity for the non-encapsulated phase change material, such that the non-encapsulated phase change material forms a plurality of domains dispersed within the first polymeric material; and a sheath member forming the exterior of the fiber and surrounding the core member, wherein the sheath member comprises a second polymeric material. 55. The core/sheath fiber of claim 54, wherein the first polymeric material and the second polymeric material are independently selected from the group consisting of polyolefins, polyamides, polyesters, elastomeric polymers, and mixtures thereof.56. The core/sheath fiber of claim 55, wherein the first polymeric material and the second polymeric material are polyolefins independently selected from the group consisting of polyethylene, polypropylene, and mixtures thereof.57. The core/sheath fiber of claim 54, wherein the non-encapsulated phase change material is selected from the group consisting of C10-C44 paraffinic hydrocarbons, polyethylene oxides, polyethylene glycols, and mixtures thereof.58. The core/sheath fiber of claim 54, wherein the non-encapsulated phase change material has a transition temperature in the range of 22° C. to 40° C.59. The core/sheath fiber of claim 54, wherein the core member comprises a blend of the first polymeric material and at least two different non-encapsulated phase change materials.60. An island-in-sea fiber comprising:a plurality of island members positioned within and extending through substantially the length of the fiber, wherein each of the island members is separated from one another, and at least one of the island members comprises a blend of an island polymeric material and at least two different phase change materials; and a sea member forming the exterior of the fiber and surrounding each of the island members, wherein the sea member comprises a sea polymeric material. 61. The island-in-sea fiber of claim 60, wherein the island polymeric material and the sea polymeric material are independently selected from the group consisting of polyolefins, polyamides, polyesters, elastomeric polymers, and mixtures thereof.62. The island-in-sea fiber of claim 61, wherein the island polymeric material and the sea polymeric material are polyolefins independently selected from the group consisting of polyethylene, polypropylene, and mixtures thereof.63. The island-in-sea fiber of claim 60, wherein the phase change materials are selected from the group consisting of C10-C44 paraffinic hydrocarbons, polyethylene, polypropylene, polypropylene glycol, polytetramethylene glycol, polypropylene malonate, polyneopentyl glycol sebacate, polypentane glutarate, polyvinyl myristate, polyvinyl stearate, polyvinyl laurate, polyhexadecyl methacrylate, polyoctadecyl methacrylate, polyethylene oxides, polyethylene glycols, polyesters, and mixtures thereof.64. The island-in-sea fiber of claim 60, wherein at least one of the phase change materials is a solid/solid phase change material.65. The island-in-sea fiber of claim 60, wherein at least one of the phase change materials has a transition temperature in the range of 22° C. to 40° C.66. The island-in-sea fiber of claim 60, wherein at least two island members comprise different phase change materials.67. The island-in-sea fiber of claim 60, wherein at least two island members comprise different island polymeric materials.
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