US3041304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for curing halogenated butyl rubber with a bivalent metal oxide and an organic polythiol compound, and product obtained thereby
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-10-23
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Granted: 1962-06-26
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Expires: 1978-10-23
Abstract
No abstract record available.
Inventors
- 👤 Irwin J Gardner
- 👤 Samuel B Robison
- 👤 Henry S Makowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:10
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
PROCESS FOR CURING HALOGENATED RUBBERY COPOLYMERS OF 85 TO 99.5 WT. PERCENT OF ISOBUTYLENE AND 15 TO 0.5 WT. PERCENT OF ISOPRENE, SAID HALOGENATED COPOLYMER BEING CHOSEN FROM THE GROUP CONSISTING OF BROMINATED AND CHLORINATED COPOLYMERS WHIHC COMPRISES MIXING SAID RUBBER WITH 0.5 TO 10 PARTS BY WEIGHT PER 100 PARTS OF RUBBER OF A BIVALENT METAL OXIDE AND 0.1 TO 15 PARTS BY WEIGHT PER 100 PARTS OF RUBBER OF AN ORGANIC THIOL COMPOUND SELECTED FROM THE GROUP CONSISTING OF 1,2 ETHANE DITHIOL; 1,3 PROPANE DITHIOL; 1,4 BUTANE DITHIOL; 1,5 PENTANE DITHIOL; 1,6 HEXANE DITHIOL; GLYCOL DIMERCAPTOACETATE; BISMERCAPTOMETHYL-M-BENZENE; BISMERCAPTOMETHYL-M-XYLENE; BISMERCAPTOMETHYL DURENE; 2,4,6 MERCAPTOMETHYL OHENOL; AND 1,2,3 PROPANE TRITHIOL; AND HEATING THE MIXTURE AT 520 TO 400*F. FOR FROM A FEW MINUTES TO SEVERAL HOURS.
References Cited (Backward Citations)
US2598407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |