US2696476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizable copolymers of diolefins with a thiophene
Assignee: United Shoe Machinery Corp
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Filing: 1951-05-29
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Granted: 1954-12-07
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Expires: 1971-05-29
Abstract
No abstract record available.
Inventors
- 👤 Wilson M Kleibacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:31
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A SOFT DEFORMABLE COMPOSITION CONVERTIBLE BY HEAT TO RESILIENT CONDITION WHICH COMPRISES AN INTIMATE MIXTURE OF A RUBBERY HYDROCARBON POLYMER, A VISCOUS LIQUID COPOLYMER FORMED IN THE PRESENCE OF A CATALYST FROM THE GROUP CONSISTING OF ORGANIC PEROXIDES AND DIAZOAMINOBENZENE OF 100 PARTS BY WEIGHT OF A CONJUGATED DIENE HAVING FROM 4 TO 6 CARBON ATOMS AND FROM 60 TO 140 PARTS BY WEIGHT OF A THIOPHENE FROM THE GROUP CONSISTING OF THIOPHENE, 3-METHYL THIOPHENE AND 4-ACETYL THIOPHENE, SULFUR AND A VULCANIZATION ASSISTANT, THE LIQUID COPOLYMER CONSTITUTING FROM 25% TO 50% BY WEIGHT OF THE COMBINED WEIGHTS OF SAID RUBBER POLYMER AND SAID LIQUID COPOLYMER.
References Cited (Backward Citations)
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Cited
US2337681A
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Cited
US2469326A
Cited
US2490270A
Cited
US2489674A
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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) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |