Patent US2918446A successfully refreshed from Google Patents.
US2918446A
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US
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Rubber composition containing aromatic nitroso compound and diisocyanates and process of vulcanizing same
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-12-31
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Granted: 1959-12-22
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 George E Serniuk
- 👤 Francis P Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08K5/29; C08K5/36; C08K5/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN IMPROVED VULCANIZABLE COMPOSITION COMPRISING A RUBBERY COPOLYMER CONTAINING ABOUT 85-99.5 WEIGHT PERCENT OF A C4 TO C8 ISOOLEFIN AND ABOUT 0.5 TO 15.0 WEIGHT PERCENT OF A C4 TO C14 MULITOLEFIN MODIFIED WITH ABOUT 0.1 TO 10.0 WEIGHT PERCENT BASED, ON THE COPOLYMER, OF AN AROMATIC NITROSO COMPOUND CONTAINING NOT MORE THAN A SINGLE NITROSO GROUP DIRECTLY ATTACHED TO A CARBON ATOM OF THE AROMATIC NUCLEUS, AND ABOUT 0.1 TO 20.0 WEIGHT PERCENT, BASED ON THE NITROSO-MODIFIED COPOLYMER, OF A CYANO COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DISCOYANATAES, ALIPHATIC DISOTHIOCYANATES AROMATIC DIISOCYANATES, AROMATIC DIISOTHIOCYANATES, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
100 words
AN IMPROVED VULCANIZABLE COMPOSITION COMPRISING A RUBBERY COPOLYMER CONTAINING ABOUT 85-99.5 WEIGHT PERCENT OF A C4 TO C8 ISOOLEFIN AND ABOUT 0.5 TO 15.0 WEIGHT PERCENT OF A C4 TO C14 MULITOLEFIN MODIFIED WITH ABOUT 0.1 TO 10.0 WEIGHT PERCENT BASED, ON THE COPOLYMER, OF AN AROMATIC NITROSO COMPOUND CONTAINING NOT MORE THAN A SINGLE NITROSO GROUP DIRECTLY ATTACHED TO A CARBON ATOM OF THE AROMATIC NUCLEUS, AND ABOUT 0.1 TO 20.0 WEIGHT PERCENT, BASED ON THE NITROSO-MODIFIED COPOLYMER, OF A CYANO COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DISCOYANATAES, ALIPHATIC DISOTHIOCYANATES AROMATIC DIISOCYANATES, AROMATIC DIISOTHIOCYANATES, AND MIXTURES THEREOF.
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |