US2948709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyzed halogenation of rubbery copolymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-12-27
•
Granted: 1960-08-09
•
Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 Kuntz Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08F; C08F8/00; C08F8/18; C08F8/20; C08K3/02; C08K3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN A PROCESS FOR HALOGENATING RUBBERY ISOLEFINMULTIOLEFIN COPOLYMERS, THE IMPROVEMENT WHICH COMPRISES DISSOLVEING THE COPOLYMER IN AN INERT SOLVENT, REACTING SAID COPOLYMER WITH A CYCLIC N-HALOGENO COMPOUND AS THE HALOGENATING AGENT AT A TEMPERATURE LEVEL OF BETWEEN ABOUT 10* AND 75*C. IN THE PRESENCE OF ABOUT 0.01 TO 25 WEIGHT PERCENT BASED ON COPOLYMER OF A PEROXIDE CATALYST, SAID CYCLIC N-HALOGENO COMPOUND HAVING A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
71 words
IN A PROCESS FOR HALOGENATING RUBBERY ISOLEFINMULTIOLEFIN COPOLYMERS, THE IMPROVEMENT WHICH COMPRISES DISSOLVEING THE COPOLYMER IN AN INERT SOLVENT, REACTING SAID COPOLYMER WITH A CYCLIC N-HALOGENO COMPOUND AS THE HALOGENATING AGENT AT A TEMPERATURE LEVEL OF BETWEEN ABOUT 10* AND 75*C. IN THE PRESENCE OF ABOUT 0.01 TO 25 WEIGHT PERCENT BASED ON COPOLYMER OF A PEROXIDE CATALYST, SAID CYCLIC N-HALOGENO COMPOUND HAVING A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF:
References Cited (Backward Citations)
US2291574A
Cited
US2327517A
Cited
US2631984A
Cited
US2681899A
Cited
US2732354A
Cited
US2816098A
Cited
US2804448A
Cited
US2779764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |