US3082056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming textile fibers from plasticized acrylonitrile polymers
Assignee: Eastman Kodak Co
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Filing: 1961-04-12
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Granted: 1963-03-19
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Expires: 1981-04-12
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:24
CPC Classifications
D; D01; D01F; D01F1/00; D01F1/02; D01F1/10; C; C08; C08K; C08K5/00; C08K5/16; C08K5/315; D01F6/00; D01F6/28; D01F6/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD FOR FORMING TEXTILE FIBERS WHICH COMPRISES EXTRUDING AT 190-195* C. A FIBER-FORMING COMPOSITION COMPRISING A POLYMER OF 88% ACRYLONITRILE AND 12% ISOPROPENYL ACETATE PLASTICIZED WITH 4-CYANO-4 PHENOL-PIMELONITRILE THROUGH A MULTI-HOLE SPINNERETTE, DRAFTING THE FIBERS 300-400% AT AN ELEVATED TEMPERATURE AND EXTRACTING THE PLASTICIZER FROM THE FIBER BY PASSING THEM THROUGH A BATH OF ISOPROPYL ALCOHOL TO GIVE FIBERS HAVING A TENSILE STRENGTH OF 3.2 GRAMS PER DENIER, AN ELONGATION OF 20% AND A HOT-BAR STICKING TEMPERATURE OF 230-240* C.
Claim 2
Independent Claim
81 words
A METHOD FOR FORMING TEXTILE FIBERS WHICH COMPRISES EXTRUDING AT 190-195* C. A FIBER-FORMING COMPOSITION COMPRISING A POLYMER OF 88% ACRYLONITRILE AND 12% ISOPROPENYL ACETATE PLASTICIZED WITH 4-CYANO-4 PHENOL-PIMELONITRILE THROUGH A MULTI-HOLE SPINNERETTE, DRAFTING THE FIBERS 300-400% AT AN ELEVATED TEMPERATURE AND EXTRACTING THE PLASTICIZER FROM THE FIBER BY PASSING THEM THROUGH A BATH OF ISOPROPYL ALCOHOL TO GIVE FIBERS HAVING A TENSILE STRENGTH OF 3.2 GRAMS PER DENIER, AN ELONGATION OF 20% AND A HOT-BAR STICKING TEMPERATURE OF 230-240* C.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |