Patent US280150A successfully refreshed from Google Patents.
Patent US3085986A successfully refreshed from Google Patents.
US3085986A
Expired / Lapsed
US
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Composition comprising a low viscosity styrene-maleic anhydride copolymer and a polyhydric alcohol
Assignee: Sinclair Research Inc
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Filing: 1959-10-30
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Granted: 1963-04-16
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Expires: 1979-10-30
Abstract
No abstract record available.
Inventors
- 👤 Irving E Muskat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A COMPOSITION COMPRISING A MIXTURE OF SEPARATE REACTIVE COMPONENTS CONTAINING AS THE ESSENTIAL RESIN INGREDIENT, A NORMALLY SOLID COPOLYMER OF STYRENE AND MALEIC ANHYDRIDE COPOLYMERIZED IN MOLAR PROPORTIONS OF FROM 1:2 TO 2:1 HAVING A SOLUTION VISCOSITY IN 10% SOLUTION IN ACETONE OF UP TO 7 CENTISTOKES AND AS THE CROSS-LINKING AGENT FOR SAID COPOLYMER AND ALIPHATIC POLYHYDRIC ALCOHOL WHICH IS REACTIVE IN SITU WITH SAID COPOLYMER AT A TEMPERATURE ABOVE ABOUT 130*C.
Claim 2
Dependent Claim
73 words
A COMPOSITION COMPRISING A MIXTURE OF SEPARATE REACTIVE COMPONENTS CONTAINING AS THE ESSENTIAL RESIN INGREDIENT, A NORMALLY SOLID COPOLYMER OF STYRENE AND MALEIC ANHYDRIDE COPOLYMERIZED IN MOLAR PROPORTIONS OF FROM 1:2 TO 2:1 HAVING A SOLUTION VISCOSITY IN 10% SOLUTION IN ACETONE OF UP TO 7 CENTISTOKES AND AS THE CROSS-LINKING AGENT FOR SAID COPOLYMER AND ALIPHATIC POLYHYDRIC ALCOHOL WHICH IS REACTIVE IN SITU WITH SAID COPOLYMER AT A TEMPERATURE ABOVE ABOUT 130*C.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |