US4871615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-adaptable textile fibers and method of preparing same
Assignee: United States Department of Agriculture
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Filing: 1986-01-13
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Granted: 1989-10-03
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Expires: 2006-01-13
Abstract
Abstract Temperature adaptable textile fibers are provided in which phase-change or plastic crystalline materials are filled within hollow fibers or impregnated upon non-hollow fibers. The fibers are produced by applying solutions or melts of the phase-change or plastic crystalline materials to the fibers.
Inventors
- 👤 Tyrone L. Vigo
- 👤 Cynthia M. Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:00
CPC Classifications
D; D01; D01F; D01F1/00; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/155; D06M11/51; D06M11/55; D06M11/56; D06M11/58; D06M11/64; D06M13/00; D06M13/10; D06M13/144; D06M13/148; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T428/2933; Y10T428/2935; Y10T428/2973; Y10T428/2975
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
Temperature-adaptable hollow textile fibers which store heat when the temperature rises and release heat when the temperature decreases, the hollow of said fibers filled with a material consisting essentially of a phase-change or plastic crystalline material which stores heat when the temperature rises and releases heat when the temperature decreases and which is chemically and physically compatible with said fibers, wherein said fibers are selected from the group consisting of rayon, polyethylene, polyester and polyamide.
Claim 2
Dependent Claim
75 words
Temperature-adaptable hollow textile fibers which store heat when the temperature rises and release heat when the temperature decreases, the hollow of said fibers filled with a material consisting essentially of a phase-change or plastic crystalline material which stores heat when the temperature rises and releases heat when the temperature decreases and which is chemically and physically compatible with said fibers, wherein said fibers are selected from the group consisting of rayon, polyethylene, polyester and polyamide.
Claim 3
Dependent Claim
88 words
Temperature-adaptable hollow textile fibes which store heat when the temperature rises and release heat when the temperature decreases, the hollow of said fibers filled with a material consisting essentially of a phase-change or plastic crystalline material which stores heat when the temperature rises and releases heat when the temperature decreases and which is chemicaly and physically compatible with said fibers, wherein said phase-change materail is selected from the group consisting of congruent inorganic salt hydrates and polyethylene glycols, and wherein said plastic crystalline material is a polyhydric alcohol.
Claim 4
Dependent Claim
88 words
Temperature-adaptable hollow textile fibes which store heat when the temperature rises and release heat when the temperature decreases, the hollow of said fibers filled with a material consisting essentially of a phase-change or plastic crystalline material which stores heat when the temperature rises and releases heat when the temperature decreases and which is chemicaly and physically compatible with said fibers, wherein said phase-change materail is selected from the group consisting of congruent inorganic salt hydrates and polyethylene glycols, and wherein said plastic crystalline material is a polyhydric alcohol.
Claim 5
Dependent Claim
33 words
The fibers of claim 1 wherein said phase-change material is selected from the group consisting of congruent inorganic salt hydrates and polyethylene glycols, and wherein said plastic crystalline material is a polyhydric alcohol.
Claim 6
Dependent Claim
50 words
The fibers of claim 2 wherein said phase-change material is selected from the group consisting of calcium chloride hexahydrate in admixture with strontium chloride hexahydrate, lithium nitrate trihydrate, and zinc nitrate hexahydrate,and wherein said plastic crystalline material is selected from the group consisting of pentaerythritol, 2,2-dimethyl-1,3-propanediol, 2-hydroxymethyl-2-methyl-1,3-propanediol, and amino alcohols.
Claim 7
Dependent Claim
51 words
The fibers of claim 3 wherein said phase-change material is selected from the group consisting of calcium chloride hexahydrate in admixtue with strontium chloride hexahydrate, lithium nitrate trihydrate, and zinc nitrate hexahydrate, and wherein said plastic crystalline mterial is selected from the group consisting of pentaerythritol, 2,2-dimethyl-1,3-propanediol, 2-hydroxymethyl-1-methyl-1,3-propanediol, and amino alcohols.
Claim 8
Dependent Claim
14 words
The fibers of claim 3 wherein said fibers are filled with a polyhydric alcohol.
Claim 9
Dependent Claim
26 words
The fibers of claim 3 wherein said fibers are filled with a material selected from the group consisting of congruent inorganic salt hydrates, and polyethylene glycols.
References Cited (Backward Citations)
US3607591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |