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US4450283A
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Platinum-styrene complexes which promote hydrosilation reactions
Assignee: Wacker Chemical Corp
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Filing: 1983-02-18
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Granted: 1984-05-22
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Expires: 2003-02-18
Abstract
Abstract Platinum-styrene complexes are prepared by reacting a platinum halide with styrene or substituted styrenes in the presence of a basic material for a sufficient amount of time to form a complex having more than one and less than four gram atoms of halogen per gram atom of platinum. These platinum-styrene complexes may be used to promote the addition of organosilicon compounds having at least one .tbd.SiH group per molecule to a compound containing aliphatic unsaturation.
Inventors
- 👤 Richard C. McAfee
- 👤 James Adkins
- 👤 Richard L. Miskowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:58
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2282; B01J31/2291; A; A61; A61K; A61K6/00; A61K6/60; A61K6/61; A61K6/90; C; C07; C07F; C07F15/00; C07F15/0006; C07F15/0086; C07F7/00; C07F7/02; C07F7/08; C07F7/0801; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/828; B01J31/26; B01J31/28; B01J31/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
A process for the addition of an organosilicon compound containing silicon-bonded hydrogen to an organic compound having carbon-carbon unsaturation which comprises mixing an organosilicon compound having silicon-bonded hydrogen with an organic compound having carbon-carbon unsaturation in the presence of a platinum-olefinic hydrocarbon complex containing more than one but less than 4 gram atoms of halogen per gram atom of platinum, said platinum-olefinic hydrocarbon complex is obtained from the reaction of a platinum halide and an olefinic hydrocarbon selected from the group consisting of styrene and ring substituted styrenes in the presence of a basic material.
Claim 2
Dependent Claim
95 words
A process for the addition of an organosilicon compound containing silicon-bonded hydrogen to an organic compound having carbon-carbon unsaturation which comprises mixing an organosilicon compound having silicon-bonded hydrogen with an organic compound having carbon-carbon unsaturation in the presence of a platinum-olefinic hydrocarbon complex containing more than one but less than 4 gram atoms of halogen per gram atom of platinum, said platinum-olefinic hydrocarbon complex is obtained from the reaction of a platinum halide and an olefinic hydrocarbon selected from the group consisting of styrene and ring substituted styrenes in the presence of a basic material.
Claim 3
Dependent Claim
71 words
The process of claim 1, wherein the organosilicon compound containing silicon-bonded hydrogen is represented by the formula ##STR2## where R is selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, haloalkyl and haloaryl radicals, X is a hydrolyzable radical, c is a number of from 0 to 3, d is a number of from 1 to 3 and the sum of c and d is from 1 to 4.
Claim 4
Dependent Claim
78 words
The process of claim 1, wherein the organosilicon compound containing silicon-bonded hydrogen is an organopolysiloxane represented by the formula R.sub.y SiH.sub.z O.sub.4-y-z, where R is selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl, aralkyl, haloalkyl and haloaryl radicals, X is a hydrolyzable radical, y is a number of from 0.5 to 2.49, z is a number of from 0.001 to 1 and the sum of y and z is a number of from 1 to 2.5.
Claim 5
Dependent Claim
21 words
The process of claim 1, wherein from 0.5 to 20 silicon-bonded hydrogen groups are present for each unsaturated carbon-carbon double bond.
Claim 6
Dependent Claim
37 words
The process of claim 1, wherein the mixture containing the organosilicon compound having silicon-bonded hydrogen and the organic compound having carbon-carbon unsaturation and platinum-olefinic hydrocarbon complex is reacted at a temperature of from 10° to 200° C.
Claim 7
Dependent Claim
33 words
The process of claim 1, wherein the platinum-olefinic hydrocarbon complex is present in an amount of from 0.5 to 500 ppm by weight of elemental platinum based on the weight of the mixture.
Claim 8
Dependent Claim
25 words
The process of claim 1, wherein the platinum-olefinic hydrocarbon complex is prepared in the presence of an alcohol having from 1 to 6 carbon atoms.
Claim 9
Dependent Claim
26 words
The process of claim 1, wherein the platinum-olefinic hydrocarbon complex is reacted at a temperature up to 150° C. in the presence of a basic material.
Claim 10
Dependent Claim
23 words
The process of claim 1, wherein the basic material is selected from the group consisting of alkali metal carbonates and alkali metal bicarbonates.
Claim 11
Dependent Claim
14 words
The process of claim 1, wherein the platinum-olefinic hydrocarbon complex is a platinum-styrene complex.
References Cited (Backward Citations)
US4398010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |