US3178464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of organosilicon compounds
Assignee: Imperial Chemical Industries Ltd
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Filing: 1961-11-01
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Granted: 1965-04-13
•
Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Pierpoint Edward Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:25
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0801; C08; C08G; C08G77/00; C08G77/04; C08G77/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A PROCESS OF REACTING A COMPOUND HAVING ALIPHATIC UNSATURATION AND BEING FREE FROM AMINO, ALDEHYDO AND RADICALS HAVING A CYANO GROUP ON AN UNSATURATED CARBON ATOM WITH A SILICON COMPOUND CONTAINING AT LEST ONE SILICON-BONDED HYDROGEN ATOM AND HAVING NOT MORE THAN TWO HYDROGEN ATOMS ATTACHED TO ANY ONE SILICON ATOM, IN THE PRESENCE OF A PLATINUM CATALYST, SAID SILICON COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF A SILANE OF THE GENERAL FORMULA RASIHBX4-A-B WHERE R IS A HYDROCARBON GROUP; X IS SELCTED FROM THE GROUP CONSISTING OF HALOGEN, ALKOXY AND ARYLOXY; A IS SELECTED FROM THE GROUP CONSISTING OF 0, 1 AND 2; B IS SELECTED FROM THE GROUP CONSISTING OF 1 AND 2 AND A+B IS NOT GREATER THAN 4, A HYDROLYSIS PRODUCT OF SUCH A SILANE AND A COHYDROLYSIS PRODUCT OF SUCH A SILANE WITH ANOTHER HYDROLYZABLE SILANE, THE IMPROVEMENT WHICH COMPRIES USING AS THE PLATINUM CATALYST, A COMPLEX OF A PLATINOU HALIDE SELECTED FROM THE GROUP CONSISTING OF PLATINUM CHLORIDE AND PLATINOUS BROMIDE WITH AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, BUTYLENE, CYCLOHEXENE AND STYRENE.
Claim 2
Dependent Claim
184 words
IN A PROCESS OF REACTING A COMPOUND HAVING ALIPHATIC UNSATURATION AND BEING FREE FROM AMINO, ALDEHYDO AND RADICALS HAVING A CYANO GROUP ON AN UNSATURATED CARBON ATOM WITH A SILICON COMPOUND CONTAINING AT LEST ONE SILICON-BONDED HYDROGEN ATOM AND HAVING NOT MORE THAN TWO HYDROGEN ATOMS ATTACHED TO ANY ONE SILICON ATOM, IN THE PRESENCE OF A PLATINUM CATALYST, SAID SILICON COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF A SILANE OF THE GENERAL FORMULA RASIHBX4-A-B WHERE R IS A HYDROCARBON GROUP; X IS SELCTED FROM THE GROUP CONSISTING OF HALOGEN, ALKOXY AND ARYLOXY; A IS SELECTED FROM THE GROUP CONSISTING OF 0, 1 AND 2; B IS SELECTED FROM THE GROUP CONSISTING OF 1 AND 2 AND A+B IS NOT GREATER THAN 4, A HYDROLYSIS PRODUCT OF SUCH A SILANE AND A COHYDROLYSIS PRODUCT OF SUCH A SILANE WITH ANOTHER HYDROLYZABLE SILANE, THE IMPROVEMENT WHICH COMPRIES USING AS THE PLATINUM CATALYST, A COMPLEX OF A PLATINOU HALIDE SELECTED FROM THE GROUP CONSISTING OF PLATINUM CHLORIDE AND PLATINOUS BROMIDE WITH AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE, BUTYLENE, CYCLOHEXENE AND STYRENE.
References Cited (Backward Citations)
US2823218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |