US3770494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified acrylonitrile polymer fibers
Assignee: Asahi Kasei Corp
•
Filing: 1970-12-16
•
Granted: 1973-11-06
•
Expires: 1990-12-16
Abstract
Abstract Modified acrylonitrile polymer fibers having wash-resistant antistatic properties can be obtained by treating acrylonitrile polymer fibers containing at least 40 percent by weight of acrylonitrile with a copolymer consisting of 60 - 98 percent by weight of a vinyl compound having a general formula of (WHEREIN R1 is hydrogen or methyl group, n is an integer of 3 to 50 and R2 is alkyl group having one to 20 carbon atoms or alkylphenyl group having one to 20 carbon atoms in alkyl moiety) and 40 - 2 percent by weight of acrylonitrile.
Inventors
- 👤 Y Shichijo
- 👤 T Ueda
- 👤 Y Ichikawa
- 👤 Y Sugaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:29
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
57 words
A modified acrylonitrile polymer fiber according to claim 1 wherein the acrylonitrile polymer fiber contains, in addition to the acrylonitrile monomer units, units of at least one comonomer selected from the group consisting of lower alkyl acrylates, lower alkyl methacrylates, methacrylic acid, acrylic acid, methacrylonitrile, vinyl acetate, vinyl chloride, vinylidene chloride, acrylamide, methallyl sulfonates, and allyl sulfonates.
Claim 2
Dependent Claim
40 words
A modified acrylonitrile polymer fiber of claim 1 wherein said adhered copolymer contains 30-10 percent by weight of acrylonitrile monomer units and 70-90 percent by weight of said vinyl compound, and wherein n is an integer of 10 to 40.
Claim 3
Dependent Claim
12 words
A fibrous shaped article comprising modified acrylonitrile polymer fibers of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |