US2927099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing system for vinylpyridine rubbers
Assignee: Phillips Petroleum Co
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Filing: 1956-08-02
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Granted: 1960-03-01
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Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Henry E Railsback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C08K5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A VULCANIZED RUBBER PREPARED BY INCORPORATING INTO A RUBBERY COPOLYMER OF BUTADIENE AND 2-METHYL-5-VINYLPYRIDINE PREPARED FROM A MONOMER MIXTURE CONTAINING FROM ABOUT 25 TO 5 PARTS OF 2-METHYL-5-VINYLPRIDINE AND FROM ABOUT 75 TO ABOUT 95 PARTS BYTADIENE, BETWEEN ABOUT 0.4 AND ABOUT 2.25 PARTS OF SULFUR, BETWEEN ABOUT 0.5 AND ABOUT 4 PARTS OF 4,4 DITHIODIMORPHOLINE AND BETWEEN ABOUT 0.25 AND ABOUT 2 PARTS OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF N-OXDIETHYLENE-2BENZETHIAZYSULFENAMIDE AND N-CYCLOHEXYL-2-BENZOTHIAZYLSULFENAMIDE, BASED ON 100 PARTS OF RUBBER AND VULCANIZING THE RUBBER.
Claim 2
Dependent Claim
86 words
A VULCANIZED RUBBER PREPARED BY INCORPORATING INTO A RUBBERY COPOLYMER OF BUTADIENE AND 2-METHYL-5-VINYLPYRIDINE PREPARED FROM A MONOMER MIXTURE CONTAINING FROM ABOUT 25 TO 5 PARTS OF 2-METHYL-5-VINYLPRIDINE AND FROM ABOUT 75 TO ABOUT 95 PARTS BYTADIENE, BETWEEN ABOUT 0.4 AND ABOUT 2.25 PARTS OF SULFUR, BETWEEN ABOUT 0.5 AND ABOUT 4 PARTS OF 4,4 DITHIODIMORPHOLINE AND BETWEEN ABOUT 0.25 AND ABOUT 2 PARTS OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF N-OXDIETHYLENE-2BENZETHIAZYSULFENAMIDE AND N-CYCLOHEXYL-2-BENZOTHIAZYLSULFENAMIDE, BASED ON 100 PARTS OF RUBBER AND VULCANIZING THE RUBBER.
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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |