US3160676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoset compositions based on vinyl pyrrolidone containing carboxy polymers-polyepoxide compositions
Assignee: Celanese Coatings Co
•
Filing: 1959-05-07
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Granted: 1964-12-08
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Expires: 1979-05-07
Abstract
No abstract record available.
Inventors
- 👤 David W Mabrey
- 👤 William P Altmiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:37
CPC Classifications
C; C09; C09D; C09D163/00; C08; C08L; C08L39/00; C08L39/04; C08L39/06; C09D157/00; C09D157/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A HEAT-CONVERTBLE, SOLVENT THINNED, ROOM TEMPERATURE STABLE, RESINOUS COMPOSITION OF MATTER COMPRISING, IN SOLUTION, A POLYEPOXIDE AND A CARBOXY COPOLYMER, COMBINED IN A RATIO OF 0.7 TO 2 EQUIVALENTS POLYEPOXIDE TO 1 EQUIVALENT OF A CARBOXY COPOLYMER, SAID POLYEPOXIDE BEING SELECTED FROM THE GROUP CONSISTING OF GLYCIDLY POLYETHERS OF POLYHYDRIC ALCOHOLS, GLYCIDYL POLYETHERS OF POLYHYDRIC PHENOLS, DICYCLOPENTADIENE DIEPOXIDE, BIS-EPOXYDICYCLOPENTYL ETHER OF ETHYLENE GLYCOL, AND 3,4-EPOXY-6METHYLCYCLOHEXYLMETHYL-3,4-EPOXY-6-METHYLCYCLOHEXANECARBOXYLATE, SAID CARBOXY COPOLYMER BEING A COPOLYMER OF 5 TO 25 WEIGHT PERCENT OF A SHORT CHAIN ALPHA-BETA MONOUNSATURATED MONOCARBOXYLIC ACID HAVING NOT MORE THAN FOUR CARBON ATOMS, 1 TO 5 WEIGHT PERCENT N-VINYL PYRROLIDONE AND A DIFFERENT MONOETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, THE TOTAL BEING 100 PERCENT, SAID SOLVENT THINNED COMPOSITION BEING DEVOID OF ADDED CATALYST BECAUSE OF THE PRESENCE OF N-VINYL PYRROLIDONE.
Claim 2
Dependent Claim
128 words
A HEAT-CONVERTBLE, SOLVENT THINNED, ROOM TEMPERATURE STABLE, RESINOUS COMPOSITION OF MATTER COMPRISING, IN SOLUTION, A POLYEPOXIDE AND A CARBOXY COPOLYMER, COMBINED IN A RATIO OF 0.7 TO 2 EQUIVALENTS POLYEPOXIDE TO 1 EQUIVALENT OF A CARBOXY COPOLYMER, SAID POLYEPOXIDE BEING SELECTED FROM THE GROUP CONSISTING OF GLYCIDLY POLYETHERS OF POLYHYDRIC ALCOHOLS, GLYCIDYL POLYETHERS OF POLYHYDRIC PHENOLS, DICYCLOPENTADIENE DIEPOXIDE, BIS-EPOXYDICYCLOPENTYL ETHER OF ETHYLENE GLYCOL, AND 3,4-EPOXY-6METHYLCYCLOHEXYLMETHYL-3,4-EPOXY-6-METHYLCYCLOHEXANECARBOXYLATE, SAID CARBOXY COPOLYMER BEING A COPOLYMER OF 5 TO 25 WEIGHT PERCENT OF A SHORT CHAIN ALPHA-BETA MONOUNSATURATED MONOCARBOXYLIC ACID HAVING NOT MORE THAN FOUR CARBON ATOMS, 1 TO 5 WEIGHT PERCENT N-VINYL PYRROLIDONE AND A DIFFERENT MONOETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, THE TOTAL BEING 100 PERCENT, SAID SOLVENT THINNED COMPOSITION BEING DEVOID OF ADDED CATALYST BECAUSE OF THE PRESENCE OF N-VINYL PYRROLIDONE.
References Cited (Backward Citations)
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US2798861A
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US2897174A
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US2910459A
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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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |