Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof
First Claim
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.
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Accused Products
Abstract
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.
295 Citations
67 Claims
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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.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multi-component fiber having enhanced reversible thermal properties, comprising:
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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. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A multi-component fiber having enhanced reversible thermal properties, comprising:
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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. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A fiber having enhanced reversible thermal properties, comprising:
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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. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A core/sheath fiber comprising:
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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. - View Dependent Claims (55, 56, 57, 58, 59)
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60. An island-in-sea fiber comprising:
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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. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67)
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Specification