Patent US5064382A successfully refreshed from Google Patents.
Patent US3639658A successfully refreshed from Google Patents.
US3639658A
Expired / Lapsed
US
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Phenolic resin compositions modified with an epsilon caprolactone
Assignee: Union Carbide Corp
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Filing: 1969-04-01
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Granted: 1972-02-01
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Expires: 1989-04-01
Abstract
Abstract THIS INVENTION RELATES TO PHENOLIC RESIN COMPOSITIONS, CONTAINING AN EPSILON CAPROLACTONE, WHICH ARE CHARACTERIZED BY AN EXCELLENT BALANCE OF PROPERTIES, THAT IS, BY EXCELLENT FLOW CHARACTERISTICS AND BY EXCELLENT CURE SPEED AND ARE PARTICULARLY SUITED FOR USE IN MOLDING APPLICATIONS TO FORM THERMOSET PRODUCTS HAVING EXCELLENT CHEMICAL AND PHYSICAL PROPERTIES AND ARE ALSO PARTICULARLY SUITED FOR USE AS BINDERS IN THE PRODUCTION OF FIBER REINFORCED LAMINATES AND COMPOSITE STRUCTURES.
Inventors
- 👤 Anthony C Soldatos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; Y; Y10; Y10S; Y10S525/00; Y10S525/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |