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Patent US4596742A successfully refreshed from Google Patents.
US4596742A
Expired / Lapsed
US
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Partially oriented nylon yarn and process
Assignee: Monsanto Co
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Filing: 1985-04-22
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Granted: 1986-06-24
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Expires: 2005-04-22
Abstract
Abstract In a partially oriented nylon feed yarn for drawtexturing, the filaments have sheaths containing a branching agent while the cores do not. Exceptional crimp development is achieved in the resulting textured yarn.
Inventors
- 👤 Dror Selivansky
- 👤 John H. Southern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:14
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/34; D01F; D01F8/00; D01F8/04; D01F8/12; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2927; Y10T428/2929
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
62 words
An apparel yarn having an elongation between 45% and 150% and comprising a filament spun at a spinning speed of at least 2200 MPM, said filament having a nylon 66 sheath component surrounding a core component, said sheath component containing a larger effective amount of branching agent than said core component said branching agent having functional groups reactive with nylon 66 polymer.
Claim 2
Dependent Claim
62 words
An apparel yarn having an elongation between 45% and 150% and comprising a filament spun at a spinning speed of at least 2200 MPM, said filament having a nylon 66 sheath component surrounding a core component, said sheath component containing a larger effective amount of branching agent than said core component said branching agent having functional groups reactive with nylon 66 polymer.
Claim 3
Dependent Claim
13 words
The yarn defined in claim 1, wherein said core component is nylon 66.
Claim 4
Dependent Claim
21 words
The yarn defined in claim 2, wherein said branching agent constitutes between 0.01 and 1 mol percent of said sheath component.
Claim 5
Dependent Claim
20 words
The yarn defined in claim 2, wherein branching agent constitutes between 0.05 and 0.15 mol percent of said sheath component.
Claim 6
Dependent Claim
19 words
The yarn defined in claim 2, wherein said sheath component comprises less than 50% by weight of said filament.
Claim 7
Dependent Claim
19 words
The yarn defined in claim 5, wherein said sheath comprises between 10% and 40% by weight of said filament.
Claim 8
Dependent Claim
15 words
The yarn defined in claim 2, wherein said yarn has an elongation lower than 100%.
Claim 9
Dependent Claim
16 words
The yarn defined in claim 2, wherein said yarn has an elongation between 60% and 90%.
Claim 10
Dependent Claim
14 words
The yarn defined in claim 2, wherein said branching agent comprises a trifunctional amine.
Claim 11
Dependent Claim
12 words
The yarn defined in claim 9, wherein said branching agent comprises TAN.
Claim 12
Dependent Claim
12 words
The yarn defined in claim 9, wherein said branching agent comprises BHMT.
Claim 13
Dependent Claim
14 words
The yarn defined in claim 2, wherein said branching agent comprises a trifunctional acid.
Claim 14
Dependent Claim
13 words
The yarn defined in claim 12, wherein said branching agent comprises trimesic acid.
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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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |