US3081279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of vulcanizing butyl rubber, halosulfonated polyethylene, and nmethyl-n-nitroso-p-nitrosoaniline composition and resulting vulcanizate
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-07-31
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Granted: 1963-03-12
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Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 David R Hammel
- 👤 Conrad J Jankowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:28
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF PRODUCING A VULCANIZATE WITH INCREASED RESISTANCE TO WEAR AND IMPROVED RECOVERY AFTER INDENTATION WHICH COMPRISES: (A) COMPOUNDING 100 PARTS OF BUTYL RUBBER COPOLYMER SAID COPOLYMER COMPRISING 70 TO 99.5 PARTS BY WEIGHT OF A C4 TO C7 ISOOLEFIN AND 30 TO 0.5 PARTS BY WEIGHT OF A MULTIOFIN SELECTED FROM THE GROUP CONSULFONATED POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF CHLOROSULFONATED POLYETHYLENE AND BROMOSULFONATED POLYETHYLENE, AND 0.12 TO 4 PARTS OF NMETHYL-N-NITROSO-P-NITROSO ANILINE; AND (B) CURING SAID COMPOUNDED RUBBER COPOLYMER IN A MOLD AT A TEMPERATURE BETWEEN 137*C. AND 183*C. FOR ONE MINUTE TO FOUR HOURS.
Claim 2
Independent Claim
99 words
A METHOD OF PRODUCING A VULCANIZATE WITH INCREASED RESISTANCE TO WEAR AND IMPROVED RECOVERY AFTER INDENTATION WHICH COMPRISES: (A) COMPOUNDING 100 PARTS OF BUTYL RUBBER COPOLYMER SAID COPOLYMER COMPRISING 70 TO 99.5 PARTS BY WEIGHT OF A C4 TO C7 ISOOLEFIN AND 30 TO 0.5 PARTS BY WEIGHT OF A MULTIOFIN SELECTED FROM THE GROUP CONSULFONATED POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF CHLOROSULFONATED POLYETHYLENE AND BROMOSULFONATED POLYETHYLENE, AND 0.12 TO 4 PARTS OF NMETHYL-N-NITROSO-P-NITROSO ANILINE; AND (B) CURING SAID COMPOUNDED RUBBER COPOLYMER IN A MOLD AT A TEMPERATURE BETWEEN 137*C. AND 183*C. FOR ONE MINUTE TO FOUR HOURS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |