US3036032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers of mixtures of monomeric bisacrylamides and monomeric organic sulfonic acid compounds upon polyvinyllactams, improved acrylonitrile polymer compositions obtainable therewith, and method of preparation
Assignee: Dow Chemical Co
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Filing: 1957-11-25
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Granted: 1962-05-22
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Murdock
- 👤 Clyde W Davis
- 👤 Forrest A Ehlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
C; C08; C08F; C08F271/00; C08F271/02; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
COMPOSITION COMPRISING A MAJOR PROPORTION OF AT LEAST ABOUT 80 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF (A) A FIBER FORMING POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL CONTAINING AT LEAST ABOUT 80 PERCENT BY WEIGHT OF ACRYLONITRILE AND (B) A MINOR PROPORTION OF UP TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF A GRAFT COPOLYMER OF (A) FROM ABOUT 10 TO 90 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE GRAFT COPOLYMER, OF A MIXTURE OF MONOMERS CONSISTING OF (1) FROM ABOUT 10 TO 90 MOLE PERCENT OF AN ACRYLAMIDE MONOMER OF THE FORMULA:
Claim 2
Dependent Claim
106 words
COMPOSITION COMPRISING A MAJOR PROPORTION OF AT LEAST ABOUT 80 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF (A) A FIBER FORMING POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL CONTAINING AT LEAST ABOUT 80 PERCENT BY WEIGHT OF ACRYLONITRILE AND (B) A MINOR PROPORTION OF UP TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF A GRAFT COPOLYMER OF (A) FROM ABOUT 10 TO 90 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE GRAFT COPOLYMER, OF A MIXTURE OF MONOMERS CONSISTING OF (1) FROM ABOUT 10 TO 90 MOLE PERCENT OF AN ACRYLAMIDE MONOMER OF THE FORMULA:
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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) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |