US2983706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing brominated rubbery polymers
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-06-20
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Granted: 1961-05-09
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Expires: 1977-06-20
Abstract
No abstract record available.
Inventors
- 👤 Francis P Baldwin
- 👤 Robert M Thomas
- 👤 Kuntz Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A COMPOSITION STABILIZED AGAINST THERMAL DEGRADATION COMPRISING A BROMINATED RUBBERY COPOLYMER OF 85 TO 99.5 WEIGHT PERCENT OF A C4 TO ISOOLEFIN AND 15 TO 0.5 WEIGHT PERCENT OF A C4 TO C14 MULTIOLEFIN, SAID BROMINATED COPOLYMER HAVING A STAUDINGER MOLECULAR WEIGHT ABOVE ABOUT 10,000 AND A MOLE PERCENT UNSATURATION OF FROM ABOUT 0.1 TO 15.0 AND CONTAINING AT LEAST ABOUT 0.5 WEIGHT PERCENT BROMINE BUT NOT MORE THAN ABOUT 3 COMBINED ATOMS OF BROMIDE PER DOUBLE BOND IN SAID COPOLYMER AND ABOUT 0.1 TO 20.0 PARTS BY WEIGHT PER 100 PARTS OF BROMINATED COPOLYMER OF A STABILIZER SELECTED FROM THE CLASS CONSISTING OF 2,6-DI-TERT-BUTYL-4-METHYL PHENOL, 2,2''-METHYLENEBIS(4-METHYL-6-TERT-BUTYL PHENOL), PHENYL-BETA-NAPHTHYLAMINE AND N,N''-DI-BETA-NAPHTHYL-P, PHENYLENE DIAMINE.
Claim 2
Dependent Claim
113 words
A COMPOSITION STABILIZED AGAINST THERMAL DEGRADATION COMPRISING A BROMINATED RUBBERY COPOLYMER OF 85 TO 99.5 WEIGHT PERCENT OF A C4 TO ISOOLEFIN AND 15 TO 0.5 WEIGHT PERCENT OF A C4 TO C14 MULTIOLEFIN, SAID BROMINATED COPOLYMER HAVING A STAUDINGER MOLECULAR WEIGHT ABOVE ABOUT 10,000 AND A MOLE PERCENT UNSATURATION OF FROM ABOUT 0.1 TO 15.0 AND CONTAINING AT LEAST ABOUT 0.5 WEIGHT PERCENT BROMINE BUT NOT MORE THAN ABOUT 3 COMBINED ATOMS OF BROMIDE PER DOUBLE BOND IN SAID COPOLYMER AND ABOUT 0.1 TO 20.0 PARTS BY WEIGHT PER 100 PARTS OF BROMINATED COPOLYMER OF A STABILIZER SELECTED FROM THE CLASS CONSISTING OF 2,6-DI-TERT-BUTYL-4-METHYL PHENOL, 2,2''-METHYLENEBIS(4-METHYL-6-TERT-BUTYL PHENOL), PHENYL-BETA-NAPHTHYLAMINE AND N,N''-DI-BETA-NAPHTHYL-P, PHENYLENE DIAMINE.
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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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |