US3342789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising chlorinated butyl rubber and a curing system
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1962-07-31
•
Granted: 1967-09-19
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Expires: 1982-07-31
Abstract
No abstract record available.
Inventors
- 👤 Bannister Eric
- 👤 Biggs John
- 👤 Coulson Samuel Howard
- 👤 Greenwood John
- 👤 Robert L Zapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K3/00; C08K3/16; C08K3/18; C08K3/20; C08K3/22; C08K5/36; C08K5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A COMPOSITION COMPRISING A MAJOR PROPORTION OF A RUBBERY CHLORINATED COPOLYMER OF ABOUT 90 TO 99.5 WT. PERCENT OF A C1 TO C7 ISOOLEFIN AND ABOUT 10 TO 0.5 WT. PERCENT OF A C4 TO C8 MULTIOLEFIN, SAID COPOLYMER HAVING A MOONEY VISCOSITY OF FROM 10 TO 20, AND A MINOR PROPORTION OF A COMBINATION OF (1) A GROUP II METAL OXIDE, (2) AN ALKYLENE TRITHIOCARBONATE, (3) SALICYCLIC ACID AND (4) A METAL HALIDE SELECTED FROM THE GROUP CONSISTING OF ZINC CHLORIDE AND STANNOUS CHLORIDE.
Claim 2
Dependent Claim
85 words
A COMPOSITION COMPRISING A MAJOR PROPORTION OF A RUBBERY CHLORINATED COPOLYMER OF ABOUT 90 TO 99.5 WT. PERCENT OF A C1 TO C7 ISOOLEFIN AND ABOUT 10 TO 0.5 WT. PERCENT OF A C4 TO C8 MULTIOLEFIN, SAID COPOLYMER HAVING A MOONEY VISCOSITY OF FROM 10 TO 20, AND A MINOR PROPORTION OF A COMBINATION OF (1) A GROUP II METAL OXIDE, (2) AN ALKYLENE TRITHIOCARBONATE, (3) SALICYCLIC ACID AND (4) A METAL HALIDE SELECTED FROM THE GROUP CONSISTING OF ZINC CHLORIDE AND STANNOUS CHLORIDE.
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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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |