Patent US3033813A successfully refreshed from Google Patents.
US3033813A
Expired / Lapsed
US
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Mixtures of acrylonitrile polymers with polypyrrolidone and fiber made from same
Assignee: GAF Chemicals Corp
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Filing: 1959-06-22
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Granted: 1962-05-08
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Werner Jesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:20
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A RESINOUS COMPOSITION COMPRISING A MIXTURE OF FROM 50 TO 99 PARTS BY WEIGHT OF AN ACRYLONTRILE POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERIC ACRYLONTRILE AND COPOLYMERS, INTERPOLYMERS, TERPOLYMERS AND GRAFT COPOLYMERS CONTAINING AT LEAST 60% BY WEIGHT OF ACRYLONTRILE AND THE REMAINDER ANOTHER POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER, AND FROM 1 TO 50 PARTS BY WEIGHT OF POLYPYRROLIDONE, THE ACRYLONTRILE CONTENT OF THE MIXTURE BEING NO LESS THAN 50% BY WEIGHT.
Claim 2
Dependent Claim
72 words
A RESINOUS COMPOSITION COMPRISING A MIXTURE OF FROM 50 TO 99 PARTS BY WEIGHT OF AN ACRYLONTRILE POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERIC ACRYLONTRILE AND COPOLYMERS, INTERPOLYMERS, TERPOLYMERS AND GRAFT COPOLYMERS CONTAINING AT LEAST 60% BY WEIGHT OF ACRYLONTRILE AND THE REMAINDER ANOTHER POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER, AND FROM 1 TO 50 PARTS BY WEIGHT OF POLYPYRROLIDONE, THE ACRYLONTRILE CONTENT OF THE MIXTURE BEING NO LESS THAN 50% BY WEIGHT.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |