Patent US2985631A successfully refreshed from Google Patents.
US2985631A
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US
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Cross-linked polymers and method for their preparation
Assignee: Goodrich Corp
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Filing: 1959-11-23
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Granted: 1961-05-23
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 John F Jones
- 👤 Alfred J Mital
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:11
CPC Classifications
C; C08; C08F; C08F10/00; C08F16/00; C08F16/12; C08F20/00; C08F20/62; C08F220/00; C08F220/02; C08F220/04; C08F220/42; C08F220/44; C08F230/00; C08F230/04; C08F30/00; C08F30/04; C08F230/08; C08F230/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A RESINOUS INTERPOLYMER OF (A) ONE HUNDRED PARTS BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) FROM 10 TO 100% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID AND FROM 0 TO 90% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-METHYL ACRYLAMIDE, ACRYLONITRILE, METHYL VINYL ETHER, ETHYL VINYL ETHER, ETHYLENE, ISOBUTYLENE AND STYRENE AND (2) SUBSTANTIALLY EQUIMOLAR QUANTITIES OF MALEIC ANHYDRIDE AND A MONOOLEFINICALLY UNSATURRATED MONOMER SELECTED FROM THE CLASS CONSISTING OF ETHYLENE, PROPYLENE, ISOBUTYLENE, STYRENE AND METHYL VINYL ETHER AND (B) FROM 0.0005 TO 6% BY WEIGHT BASED ON THE WEIGHT OF (A) OF A CROSS-LINKING AGENT CONFORMING TO THE STRUCTURE
Claim 2
Dependent Claim
118 words
A RESINOUS INTERPOLYMER OF (A) ONE HUNDRED PARTS BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) FROM 10 TO 100% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID AND FROM 0 TO 90% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-METHYL ACRYLAMIDE, ACRYLONITRILE, METHYL VINYL ETHER, ETHYL VINYL ETHER, ETHYLENE, ISOBUTYLENE AND STYRENE AND (2) SUBSTANTIALLY EQUIMOLAR QUANTITIES OF MALEIC ANHYDRIDE AND A MONOOLEFINICALLY UNSATURRATED MONOMER SELECTED FROM THE CLASS CONSISTING OF ETHYLENE, PROPYLENE, ISOBUTYLENE, STYRENE AND METHYL VINYL ETHER AND (B) FROM 0.0005 TO 6% BY WEIGHT BASED ON THE WEIGHT OF (A) OF A CROSS-LINKING AGENT CONFORMING TO THE STRUCTURE
References Cited (Backward Citations)
US2253128A
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US2258718A
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US2388161A
Cited
US2628246A
Cited
GB641268A
Cited
US2873288A
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |