Patent US2964502A successfully refreshed from Google Patents.
US2964502A
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US
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Process for producing resins from liquid diene polymers and polythiols
Assignee: Phillips Petroleum Co
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Filing: 1957-08-26
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Granted: 1960-12-13
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Charles E Wheelock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:12
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/30; C08K3/28; C08K5/00; C08K5/36; C08K5/45; C08K5/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF CURING A LIQUID POLYMER OF 1,3-BUTADIENE, SAID LIQUID POLYMER HAVING A IVSEOSITY OF 100 TO 6000 SAYBOLT FUROL SECOND AT 100*E. COMPRISING INCORPORATING IN SAID LIQUID POLYMER 2,5-DIMERCAPTO-1,3,4THIADIAZOLE IN AN AMOUNT OF 2 TO 60 PARTS BY WEIGHT PER 100 PARTS OF SAID POLYMER, SAID 2,5-DIMERCAPTO-1,3,4THIADIZOLE BEING FORMED IN SITU BY MIXING WITH SAID POLYMER HYDRAZINE AND CARBON DISULFIDE, AND HEATING THE MIXTURE TO PRODUCE A SOLID PRODUCT.
Claim 2
Independent Claim
71 words
THE METHOD OF CURING A LIQUID POLYMER OF 1,3-BUTADIENE, SAID LIQUID POLYMER HAVING A IVSEOSITY OF 100 TO 6000 SAYBOLT FUROL SECOND AT 100*E. COMPRISING INCORPORATING IN SAID LIQUID POLYMER 2,5-DIMERCAPTO-1,3,4THIADIAZOLE IN AN AMOUNT OF 2 TO 60 PARTS BY WEIGHT PER 100 PARTS OF SAID POLYMER, SAID 2,5-DIMERCAPTO-1,3,4THIADIZOLE BEING FORMED IN SITU BY MIXING WITH SAID POLYMER HYDRAZINE AND CARBON DISULFIDE, AND HEATING THE MIXTURE TO PRODUCE A SOLID PRODUCT.
References Cited (Backward Citations)
US2396957A
Cited
US2631175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |