US2977344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butyl rubber cured in the presence of a combination of accelerators
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-09-06
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Granted: 1961-03-28
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Expires: 1977-09-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Powers
- 👤 Samuel B Robison
- 👤 James V Fusco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39; C08K3/00; C08K3/02; C08K3/06; C08K5/45; C08K5/46; C08K5/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
A FAST-CURING VULCANIZABLE COMPOSITION COMPRISING 100 PARTS BY WEIGHT OF A COPOLYMER OF 85 TO 99.5 WT. PERCENT OF A C4 TO C7 ISOOLEFIN AND 0.5 TO 15 WT. PERCENT OF A C4 TO C14 MULTIOLEFIN COMPOUNDED WITH 1 TO 5 PARTS BY WEIGHT OF SULFUR AND ABOUT 0.5 TO 8 PARTS BY WEIGHT OF AN ACCELERATOR COMBINATION CONSISTING ESSENTIALLY OF 0.117 TO 5.93 PARTS BY WEIGHT OF A DI-C1 TO C4 ALKYL DITHIOCARBAMATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TELLURIUM AND COPPER, AND ABOUT 0.25 TO 1.25 PARTS BY WEIGHT OF BENZYL THIAZYL DISULFIDE PER PART OF TOTAL DITHIOCARBAMATE, AND ABOUT 0.1 TO 2 PARTS BY WEIGHT OF TETRAMETHYL THIURAM DISULFIDE PER PART OF TOTAL DITHIOCARBAMATE.
References Cited (Backward Citations)
US2775537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |