Patent US3097185A successfully refreshed from Google Patents.
US3097185A
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Graft copolymers comprised of certain acrylamide and methacrylamide monomers on polyvinyllactams and improved acrylonitrile polymer compositions obtainable therewith
Assignee: Dow Chemical Co
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Filing: 1958-07-29
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Granted: 1963-07-09
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Expires: 1978-07-29
Abstract
No abstract record available.
Inventors
- 👤 Armen Ardy
- 👤 Forrest A Ehlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:29
CPC Classifications
C; C08; C08F; C08F271/00; C08F271/02; D; D01; D01F; D01F6/00; D01F6/44; D01F6/54; D06; D06P; D06P3/00; D06P3/70; Y; Y10; Y10S; Y10S8/00; Y10S8/18; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
GRAFT COPOLYMER CONSISTING OF BETWEEN ABOUT 2 AND 50 WEIGHT PERCENT OF (A) AN ACRYLAMIDE MONOMER OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
20 words
GRAFT COPOLYMER CONSISTING OF BETWEEN ABOUT 2 AND 50 WEIGHT PERCENT OF (A) AN ACRYLAMIDE MONOMER OF THE GENERAL FORMULA:
Claim 3
Dependent Claim
71 words
COMPOSITION COMPRISING A MAJOR PROPORTON OF AT LEAST ABOUT 80 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF (A) A POLYMERIZED ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL CONTAINING AT LEAST ABOUT 80 PERCENT BY WEIGHT OF POLYMERIZED ACRYLONITRILE AND (B) A MINOR PROPORTON OF UP TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF A GRAFT COPOLYMER CONSISTING OF (A) A MONOMER OF THE FORMULA:
Claim 4
Dependent Claim
71 words
COMPOSITION COMPRISING A MAJOR PROPORTON OF AT LEAST ABOUT 80 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF (A) A POLYMERIZED ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL CONTAINING AT LEAST ABOUT 80 PERCENT BY WEIGHT OF POLYMERIZED ACRYLONITRILE AND (B) A MINOR PROPORTON OF UP TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF A GRAFT COPOLYMER CONSISTING OF (A) A MONOMER OF THE FORMULA:
References Cited (Backward Citations)
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |