Patent US4789592A successfully refreshed from Google Patents.
US4789592A
Expired / Lapsed
US
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Hot-melt-adhesive composite fiber
Assignee: JNC Corp
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Filing: 1986-09-17
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Granted: 1988-12-06
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Expires: 2006-09-17
Abstract
Abstract A hot-melt-adhesive composite fiber having a broad temperature range of hot-melt adhesion, exhibiting a low heat-shrinkage over the whole temperature range thereof, having a high tenacity and suitable to production of a non-woven fabric having superior restoring properties, bulkiness, draping properties and feeling is provided, which composite fiber comprising a fiber-forming component and an adhesive component, the fiber-forming component comprising 0.5 to 30% by weight of a copolymer of a carboxyl group containing modified polyolefin with a polyamide, and the adhesive component comprising a carboxyl group-containing modified polyolefin, an unmodified polyolefin or a mixture thereof.
Inventors
- 👤 Masahiko Taniguchi
- 👤 Shigeru Goi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:13
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; C; C09; C09J; C09J167/00; D01; D01F; D01F8/00; D01F8/04; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
80 words
A hot-melt-adhesive composite fiber comprising a fiber-forming component and an adhesive component, said fiber-forming component comprising 0.5 to 30% by weight of a copolymer of a carboxyl group-containing modified polyolefin with a polyamide and 70 to 99.5% by weight of a polyester, the proportion of said carboxyl group-containing modified polyolefin in said copolymer is in the range of 0.5 to 60% by weight, and said adhesive component comprising a carboxyl group-containing modified polyolefin, an unmodified polyolefin or a mixture thereof.
Claim 2
Dependent Claim
80 words
A hot-melt-adhesive composite fiber comprising a fiber-forming component and an adhesive component, said fiber-forming component comprising 0.5 to 30% by weight of a copolymer of a carboxyl group-containing modified polyolefin with a polyamide and 70 to 99.5% by weight of a polyester, the proportion of said carboxyl group-containing modified polyolefin in said copolymer is in the range of 0.5 to 60% by weight, and said adhesive component comprising a carboxyl group-containing modified polyolefin, an unmodified polyolefin or a mixture thereof.
Claim 3
Dependent Claim
28 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said carboxyl group-containing modified polyolefin is at least one of maleic anhydride modified polyethylene and maleic anhydride modified polypropylene.
Claim 4
Dependent Claim
21 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said polyamide is at least one of nylon 6 and/or nylon 66.
Claim 5
Dependent Claim
20 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said unmodified polyolefin is at least one of polyethylene and polypropylene.
Claim 6
Dependent Claim
39 words
A hot-melt-adhesive composite fiber according to claim 1 wherein the proportion of said carboxyl group-containing modified polyolefin in said copolymer of a carboxyl group-containing modified polyolefin with a polyamide is in the range of 2 to 50% by weight.
Claim 7
Dependent Claim
14 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said adhesive component is polyethylene.
Claim 8
Dependent Claim
14 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said adhesive component is polypropylene.
Claim 9
Dependent Claim
31 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said fiber-forming component and said adhesive component of said hot-melt-adhesive composite fiber are arranged in the form of side by side type.
Claim 10
Dependent Claim
46 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said fiber-forming component and said adhesive component of said hot-melt-adhesive composite fiber are arranged in the form of sheath and core type, said fiber-forming component forming a core component and said adhesive component forming a sheath component.
Claim 11
Dependent Claim
18 words
A hot-melt-adhesive composite fiber according to claim 2 wherein said fiber-forming component comprises said carboxyl group-containing modified polyolefin.
Claim 12
Dependent Claim
18 words
A hot-melt-adhesive composite fiber according to claim 2 wherein said adhesive component comprises said carboxyl group-containing modified polyolefin.
Claim 13
Dependent Claim
23 words
A hot-melt-adhesive composite fiber according to claim 2 wherein said fiber-forming component and said adhesive component both comprise said carboxyl group-containing modified polyolefin.
Claim 14
Dependent Claim
20 words
A hot-melt-adhesive composite fiber according to claim 1 wherein said adhesive component comprises a mixture of modified and unmodified polyolefin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |