US2994690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenation of rubbery copolymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-01-02
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Granted: 1961-08-01
•
Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Kuntz Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:51
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A PROCESS FOR HALOGENATION, THE IMPROVEMENT WHICH COMPRISES REACTING A LOW UNSATURATION HYDROCARBON POLYMER MATERIAL OF A MAJOR PORTION OF A C4 TO C8 ISOOLEFIN AND A MINOR PORTION OF A C4 TO C14 MULTIOLEFIN AT AN ELEVATED TEMPERATURE WITH A HETEROCYCLIC N-HALOGENOCOMPOUND SELECTED FROM THE GROUP CONSISTING OF N-BROMOAND N-CHLORO-COMPOUNDS AS THE HALOGENATING AGENT IN THE PRESENCE OF A MINOR PROPORTION BASED ON HYDROCARBON POLYMER MATERIAL OF A GROUP 11-A METAL OXIDE.
Claim 2
Dependent Claim
74 words
IN A PROCESS FOR HALOGENATION, THE IMPROVEMENT WHICH COMPRISES REACTING A LOW UNSATURATION HYDROCARBON POLYMER MATERIAL OF A MAJOR PORTION OF A C4 TO C8 ISOOLEFIN AND A MINOR PORTION OF A C4 TO C14 MULTIOLEFIN AT AN ELEVATED TEMPERATURE WITH A HETEROCYCLIC N-HALOGENOCOMPOUND SELECTED FROM THE GROUP CONSISTING OF N-BROMOAND N-CHLORO-COMPOUNDS AS THE HALOGENATING AGENT IN THE PRESENCE OF A MINOR PROPORTION BASED ON HYDROCARBON POLYMER MATERIAL OF A GROUP 11-A METAL OXIDE.
References Cited (Backward Citations)
US2833734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |