Patent US2997449A successfully refreshed from Google Patents.
US2997449A
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Acrylonitrile polymer compositions containing nu-vinyl-3-morpholinone polymer dye-assisting adjuvants, method of manufacturing same and resulting shaped articles
Assignee: Dow Chemical Co
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Filing: 1958-01-24
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Granted: 1961-08-22
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Expires: 1978-01-24
Abstract
No abstract record available.
Inventors
- 👤 Armen Ardy
- 👤 Forrest A Ehlers
- 👤 Stanley A Murdock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:03
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A DYE-RECEPTIVE COMPOSITION COMPRISING (1) A FIBERFORMING ACRYLONITRILE POLYMER WHICH IS A POLYMER OF POLYMERIZABLE, ACRYLONITRILE-CONTAINING, ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL THAT HAS IN THE POLYMER MOLECULE AT LEAST ABOUT 80 WEIGHT PERCENT OF POLYMERIZED ACRYLONITRILE, SAID COMPOSITION UNIFORMLY CONTAINING THEREIN (2) UP TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF AN N-VINYL-3-MORPHOLINONE POLYMER.
Claim 2
Dependent Claim
59 words
A DYE-RECEPTIVE COMPOSITION COMPRISING (1) A FIBERFORMING ACRYLONITRILE POLYMER WHICH IS A POLYMER OF POLYMERIZABLE, ACRYLONITRILE-CONTAINING, ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL THAT HAS IN THE POLYMER MOLECULE AT LEAST ABOUT 80 WEIGHT PERCENT OF POLYMERIZED ACRYLONITRILE, SAID COMPOSITION UNIFORMLY CONTAINING THEREIN (2) UP TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF AN N-VINYL-3-MORPHOLINONE POLYMER.
References Cited (Backward Citations)
US2818398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |