US4966808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micro-fibers-generating conjugate fibers and woven or non-woven fabric thereof
Assignee: JNC Corp
•
Filing: 1990-01-23
•
Granted: 1990-10-30
•
Expires: 2010-01-23
Abstract
Abstract Micro-fibers-generating conjugate fibers having a practically sufficient tenacity, a broad tolerance of spinning conditions and a stabilized spinnability, and a woven fabric or non-woven fabric prepared from the same are provided, which micro-fibers-generating conjugate fibers comprises one conjugate component of island-in-sea structure and the other conjugate component of a normal structure, the former component being exposed on the surface of the conjugate fiber and the sea part of the island-in-sea structure being removed by a solvent treatment at a later stage after or before forming into a woven or non-woven fabric to generate micro-fibers along with the fibers of the other component.
Inventors
- 👤 Michinori Kawano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:09
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/36; D01F; D01F8/00; D01F8/04; D03; D03D; D03D15/00; D03D15/20; D03D15/283; D03D15/292; D03D15/30; D03D15/33; D03D15/50; D03D15/573; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4382; D04H1/43825; D04H1/43828; D04H1/4383; D04H1/43832; D04H1/43835; D04H1/43838; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931; Y10T442/00; Y10T442/30; Y10T442/3146; Y10T442/3163; Y10T442/60; Y10T442/637; Y10T442/64
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
Micro-fibers-generating conjugate fibers, wherein at least one conjugate component of said fibers has an island-in-sea structure, said micro-fibers-generating conjugate fibers has a fineness of one denier or more, the other conjugate component of said micro-fibers-generating conjugate fibers has a fineness of 0.5 denier or more, said at least one conjugate component having an island-in-sea structure is exposed on the surface of said micro-fibers-generating conjugate fibers, the sea part of said conjugate component is removable by a solvent treatment, the island part of said conjugate component after removing the sea part has a fineness of 0.1 denier or less.
Claim 2
Dependent Claim
98 words
Micro-fibers-generating conjugate fibers, wherein at least one conjugate component of said fibers has an island-in-sea structure, said micro-fibers-generating conjugate fibers has a fineness of one denier or more, the other conjugate component of said micro-fibers-generating conjugate fibers has a fineness of 0.5 denier or more, said at least one conjugate component having an island-in-sea structure is exposed on the surface of said micro-fibers-generating conjugate fibers, the sea part of said conjugate component is removable by a solvent treatment, the island part of said conjugate component after removing the sea part has a fineness of 0.1 denier or less.
Claim 3
Dependent Claim
35 words
A woven or non-woven fabric having micro-fibers obtained by removing from a woven or non-woven fabric prepared by using micro-fibers-generating conjugate fibers as set forth in claim 1, the sea part contained in said fibers.
Claim 4
Dependent Claim
51 words
A woven or non-woven fabric having micro-fibers, obtained by removing from a woven or non-woven fabric prepared by using micro-fibers-generating conjugate fibers as set forth in claim 1 and hot-melt adhesive fibers, the sea part contained therein, before or after subjecting said woven fabric or non-woven fabric to hot-melt adhesive treatment.
Claim 5
Dependent Claim
35 words
A woven or non-woven fabric obtained by removing from a woven or non-woven fabric prepared by applying a binder to the micro-fibers-generating conjugate fibers as set forth in claim 1, the sea part contained therein.
Claim 6
Dependent Claim
22 words
Micro-fibers obtained by removing the sea part of the conjugate component of the micro-fibers-generating conjugate fibers as set forth in claim 1.
References Cited (Backward Citations)
US3681189A
Cited
US4117194A
Cited
US4127696A
Cited
US4243713A
Cited
US4381335A
Cited
US4496619A
Cited
US4627950A
Cited
US4789592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |