US3083242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of certain organomagnesium chlorides in ethylene polyethers
Assignee: M&T Chemicals Inc
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Filing: 1956-09-19
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Granted: 1963-03-26
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Expires: 1976-09-19
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Ramsden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:19
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/02; C08; C08G; C08G63/00; C08G63/78; C08G63/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR PRODUCING VINYLMAGNESIUM CHLORIDE WHICH COMPRISES REACTING MAGNESIUM WITH VINYL CHLORIDE, THE PROCESS BEING INITIATED BY ADDING TO THE MAGNESIUM A SMALL BUT SUFFICIENT AMOUNT OF AN ETHER SOLUTION OF A REACTIVE HYDROCARBON HALIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL HALIDES AND MONONUCLEAR ARYL HALIDES TO PRODUCE A REACTION BETWEEN THE REACTIVE HYDROCARBON HALIDE AND THE MAGNESIUM AND THEREAFTER ADDING TO THE MAGNESIUM A SOLUTION CONSISTING OF SAID VINYL CHLORIDE AND AT LAST AN EQUIMOLAR AMOUNT OF AN ETHYLENE POLYETHER HAVING UP TO 10 CARBON ATOMS AND CHARACTERIZED BY THE GENERAL FORMULA
Claim 2
Dependent Claim
96 words
A PROCESS FOR PRODUCING VINYLMAGNESIUM CHLORIDE WHICH COMPRISES REACTING MAGNESIUM WITH VINYL CHLORIDE, THE PROCESS BEING INITIATED BY ADDING TO THE MAGNESIUM A SMALL BUT SUFFICIENT AMOUNT OF AN ETHER SOLUTION OF A REACTIVE HYDROCARBON HALIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL HALIDES AND MONONUCLEAR ARYL HALIDES TO PRODUCE A REACTION BETWEEN THE REACTIVE HYDROCARBON HALIDE AND THE MAGNESIUM AND THEREAFTER ADDING TO THE MAGNESIUM A SOLUTION CONSISTING OF SAID VINYL CHLORIDE AND AT LAST AN EQUIMOLAR AMOUNT OF AN ETHYLENE POLYETHER HAVING UP TO 10 CARBON ATOMS AND CHARACTERIZED BY THE GENERAL FORMULA
References Cited (Backward Citations)
US2552676A
Cited
US2638474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |