US2829123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of butyl rubber by 2, 6-di-(alkoxymethyl)-4-hydrocarbyl phenols
Assignee: Uniroyal Inc
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Filing: 1955-09-27
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Granted: 1958-04-01
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Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Pliny O Tawney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF VULCANIZING A SYNTHETIC RUBBERY COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH FROM 0.5 TO 10% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS, COMPRISING HEATING 100 PARTS BY WEIGHT OF THE SAID RUBBER AT A TEMPERATURE OF FROM 100*C. TO 250*C. FOR FROM 5 MINUTES TO 3 HOURS, IN ADMIXTURE WITH (A) FROM 2 TO 12 PARTS OF A 2,6-DI(ALKOXYMETHYL)-4-HYDROCARBYLPHENO, WHEREIN THE SAID HYDROCARBYL IS SELECTED FROM THE GROUP CONSISTING OF ALKYYL, ARYL. ARALKYL AND CYCLOALKYL RADICALS, AND WHEREIN EACH ALKOXY GROUP CONTAINS NO MORE THAN FOUR CARBON ATOMS, AND (B) FROM 0.5 TO 10 PARTS OF A HEAVY METAL HALIDE.
Claim 2
Independent Claim
112 words
A METHOD OF VULCANIZING A SYNTHETIC RUBBERY COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH FROM 0.5 TO 10% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS, COMPRISING HEATING 100 PARTS BY WEIGHT OF THE SAID RUBBER AT A TEMPERATURE OF FROM 100*C. TO 250*C. FOR FROM 5 MINUTES TO 3 HOURS, IN ADMIXTURE WITH (A) FROM 2 TO 12 PARTS OF A 2,6-DI(ALKOXYMETHYL)-4-HYDROCARBYLPHENO, WHEREIN THE SAID HYDROCARBYL IS SELECTED FROM THE GROUP CONSISTING OF ALKYYL, ARYL. ARALKYL AND CYCLOALKYL RADICALS, AND WHEREIN EACH ALKOXY GROUP CONTAINS NO MORE THAN FOUR CARBON ATOMS, AND (B) FROM 0.5 TO 10 PARTS OF A HEAVY METAL HALIDE.
References Cited (Backward Citations)
US2726224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |