Patent US3925434A successfully refreshed from Google Patents.
US3925434A
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The reaction of chlorosilanes with unsaturated organic compounds
Assignee: Union Carbide Corp
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Filing: 1975-01-22
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Granted: 1975-12-09
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Expires: 1995-01-22
Abstract
Abstract In the platinum catalyzed reaction of a chlorosilane with an olefinically unsaturated hydrocarbon other than acrylonitrile, promoters, such as, phenothiazine, diphenylamine, N,N-diphenyl-pphenylenediamine and phenoxazine increase the rate of reaction.
Inventors
- 👤 Vincent T Chuang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:39
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
68 words
IN THE PLATINUM CATALYZED ADDITION REACTION OF A CHLOROSILANE, CONTAINING AT LEAST ONE HYDROGEN BONDED TO SILICON, WITH AN OLEFINICALLY UNSATURATED HYDROCARBON OTHER THAN ACRYLONITRILE, AN IMPROVED METHOD WHICH COMPRISES CARRYING OUT SAID ADDITION REACTION IN THE PRESENCE OF ABOUT 0.001 TO ABOUT 10 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF REACTANTS OF A PROMOTER SELECTED FROM THE GROUP CONSISTING OF PHENOTHIAZINE, DIPEHNYLAMINE, N,N-DIPHENYL-P-PHENYLENEDIAMINE OR PHENOXAZINE.
Claim 2
Dependent Claim
68 words
IN THE PLATINUM CATALYZED ADDITION REACTION OF A CHLOROSILANE, CONTAINING AT LEAST ONE HYDROGEN BONDED TO SILICON, WITH AN OLEFINICALLY UNSATURATED HYDROCARBON OTHER THAN ACRYLONITRILE, AN IMPROVED METHOD WHICH COMPRISES CARRYING OUT SAID ADDITION REACTION IN THE PRESENCE OF ABOUT 0.001 TO ABOUT 10 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF REACTANTS OF A PROMOTER SELECTED FROM THE GROUP CONSISTING OF PHENOTHIAZINE, DIPEHNYLAMINE, N,N-DIPHENYL-P-PHENYLENEDIAMINE OR PHENOXAZINE.
Claim 3
Dependent Claim
10 words
Method claimed in claim 1 wherein the promoter is phenothiazine.
Claim 4
Dependent Claim
10 words
Method claimed in claim 1 wherein the promoter is diphenylamine.
Claim 5
Dependent Claim
10 words
Method claimed in claim 1 wherein the promoter is N,N-diphenyl-p-phenylenediamine.
Claim 6
Dependent Claim
10 words
Method claimed in claim 1 wherein the promoter is phenoxazine.
Claim 7
Dependent Claim
13 words
Method claimed in claim 1 wherein the olefinically unsaturated hydrocarbon is vinylbenzyl chloride.
Claim 8
Dependent Claim
13 words
Method claimed in claim 1 wherein the olefinically unsaturated hydrocarbon is allyl chloride.
Claim 9
Dependent Claim
12 words
Method claimed in claim 1 wherein the olefinically unsaturated hydrocarbon is styrene.
Claim 10
Dependent Claim
12 words
Method claimed in claim 1 wherein the olefinically unsaturated hydrocarbon is vinyltoluene.
Claim 11
Dependent Claim
12 words
Method claimed in claim 1 wherein the olefinically unsaturated hydrocarbon is ethylene.
Claim 12
Dependent Claim
13 words
Method claimed in claim 1 wherein the olefinically unsaturated hydrocarbon is allyl cyanide.
Claim 13
Dependent Claim
10 words
Method claimed in claim 1 wherein the chlorosilane is trichlorosilane.
Claim 14
Dependent Claim
10 words
Method claimed in claim 1 wherein the chlorosilane is methyldichlorosilane.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |