US2944927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cure of chlorofluorocarbon elastomer
Assignee: Uniroyal Inc
•
Filing: 1959-05-15
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Granted: 1960-07-12
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Expires: 1979-05-15
Abstract
No abstract record available.
Inventors
- 👤 Lucian P Dosmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:32
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
A METHOD OF MAKING A LAMINATED ARTICLE HAVING A LAYER MADE OF UNSATURATED, VULCANIZABLE RUBBER AND A LAYER MADE OF A SATURATED ELASTOMER WHICH IS A COPOLYMER OF MONOCHLOROTRIFLUOROETHYLENE AND VINYLIDENE FLUORIDE, CONTAINING FROM 5% TO 70% OF VINYLIDENE FLUORIDE, COMPRISING OCMPOUNDING SAID UNSATURATED, VULCANIZABLE RUBBER FOR SULFUR VULCANIZATION, COMPOUNDING 100 PARTS OF SAID SATURATED ELASTEMER WITH FROM 1 TO 5 PARTS OF A PEROZIDE AS A CURING AGENT AND FROM 1 TO 20 PARTS OF N,N''-METHYLENEBISACRYLAMIDE AS AN ACCELERATOR, WHEREBY THE COMPOUNDED UNSATURATED, VULCANIZABLE RUBBER HAS A CURING RATE SUBSTANTIALLY SIMILAR TO THE CURING RATE OF THE COMPOUNDED SATURATED ELASTOMER, LAMINATING THE RESULTING TWO COMPOUNDED STOCKS, AND CURING THE LAMINATE AT A TEMPERATURE OF FROM 150* TO 350*F. FOR A PERIOD OF FROM 5 MINUTES TO 24 HOURS.
References Cited (Backward Citations)
US2475846A
Cited
US2833752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |