Patent US3085074A successfully refreshed from Google Patents.
US3085074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersions of halogenated, polymer modified butyl rubber, process of makingsame, and vulcanization thereof
Assignee: BURKE
•
Filing: 1959-11-16
•
Granted: 1963-04-09
•
Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Oliver W Burke
- 👤 Oscar M Grace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:40
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR THE PREPARATION OF A MODIFIED POLYMER WHICH CONSISTS IN HALOGENATING A POLYMER MODIFIER INTERPOLYMER MATERIAL; SAID INTERPOLYMER MATERIAL COMPRISING POLYMERIZED C4 TO C8 ISOOLEFIN IN MAJOR PROPORTION AND POLYMERIZED C4 TO C18 MULTIOLEFIN IN MINOR PROPORTION; SAID INTERPOLYMER MATERIAL HAVING BEEN POLYMER MODIFIED BY THE POLYMERIZATION, IN ITS PRESENCE, OF MONOMER MATERIAL CONTAINING AT LEAST ONE ETHYLENIC DOUBLE BOND AND POLYMERIZABLE THERETHROUGH WITH THE AID OF A FREE RADICAL GENERATING CATALYST; AND SAID HALOGENATING BEING EFFECTED BY REACTING SAID POLYMER MODIFIED INTERPOLYMER MATERIAL WITH A HALOGENATING AGENT.
Claim 2
Dependent Claim
90 words
A PROCESS FOR THE PREPARATION OF A MODIFIED POLYMER WHICH CONSISTS IN HALOGENATING A POLYMER MODIFIER INTERPOLYMER MATERIAL; SAID INTERPOLYMER MATERIAL COMPRISING POLYMERIZED C4 TO C8 ISOOLEFIN IN MAJOR PROPORTION AND POLYMERIZED C4 TO C18 MULTIOLEFIN IN MINOR PROPORTION; SAID INTERPOLYMER MATERIAL HAVING BEEN POLYMER MODIFIED BY THE POLYMERIZATION, IN ITS PRESENCE, OF MONOMER MATERIAL CONTAINING AT LEAST ONE ETHYLENIC DOUBLE BOND AND POLYMERIZABLE THERETHROUGH WITH THE AID OF A FREE RADICAL GENERATING CATALYST; AND SAID HALOGENATING BEING EFFECTED BY REACTING SAID POLYMER MODIFIED INTERPOLYMER MATERIAL WITH A HALOGENATING AGENT.
References Cited (Backward Citations)
US2476430A
Cited
US2586124A
Cited
US2595797A
Cited
US2609365A
Cited
US2631984A
Cited
US2732354A
Cited
GB746692A
Cited
US2799662A
Cited
US2883351A
Cited
FR1145258A
Cited
GB793581A
Cited
US2901458A
Cited
US2943664A
Cited
US2965620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |