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US4680365A
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Method for preparing acetoxysiloxanes and organo(poly)siloxanes having halogen bonded to silicon
Assignee: Wacker Chemie AG
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Filing: 1986-05-05
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Granted: 1987-07-14
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Expires: 2006-05-05
Abstract
Abstract Organo(poly)siloxanes having halogen bonded directly to silicon, or acetoxysiloxanes are prepared by reacting organo(poly)siloxanes having hydrogen bonded directly to silicon, with an allyl compound in the presence of metallic palladium, ruthenium or rhodium, or an acetylacetone or phosphine complex, or compound containing palladium, ruthenium or rhodium in which the allyl compound is an allyl halide having 3 carbon atoms per molecule or allyl acetate.
Inventors
- 👤 Johann Muller
- 👤 Christa Trieschmann
- 👤 Walter Doskocil
- 👤 Gerhard Preiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:53
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/385; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0876
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
117 words
A method for preparing acetoxysiloxanes or organo(poly)siloxanes having halogen bonded directly to silicon, which comprises reacting an organopolysiloxane having hydrogen bonded directly to silicon, with an allyl compound in the presence of a catalyst selected from the group consisting of metallic palladium, ruthenium, rhodium, an acetylacetone complex of a metal selected from palladium, ruthenium or rhodium, a phosphine complex of a metal selected from palladium, ruthenium or rhodium, an acetylacetone composition containing a metal selected from the group consisting of palladium, ruthenium and rhodium and a phosphine composition containing palladium, ruthenium or rhodium, in which the allyl compound is selected from the group consisting of an allylhalide having 3 carbon atoms per molecule and an allyl acetate.
Claim 2
Independent Claim
117 words
A method for preparing acetoxysiloxanes or organo(poly)siloxanes having halogen bonded directly to silicon, which comprises reacting an organopolysiloxane having hydrogen bonded directly to silicon, with an allyl compound in the presence of a catalyst selected from the group consisting of metallic palladium, ruthenium, rhodium, an acetylacetone complex of a metal selected from palladium, ruthenium or rhodium, a phosphine complex of a metal selected from palladium, ruthenium or rhodium, an acetylacetone composition containing a metal selected from the group consisting of palladium, ruthenium and rhodium and a phosphine composition containing palladium, ruthenium or rhodium, in which the allyl compound is selected from the group consisting of an allylhalide having 3 carbon atoms per molecule and an allyl acetate.
Claim 3
Dependent Claim
20 words
The method of claim 1, wherein the allylhalide is selected from the group consisting of an allylchloride, allylbromide or allyliodide.
Claim 4
Dependent Claim
10 words
The method of claim 2, wherein the allylhalide is allylbromide.
Claim 5
Dependent Claim
10 words
The method of claim 2, wherein the allylhalide is allyliodide.
Claim 6
Dependent Claim
47 words
The method of claim 1, wherein the organo(poly)siloxanes having halogen bonded directly to silicon are prepared by reacting an organo(poly)siloxane having hydrogen bonded directly to silicon with an allyl halide in the presence of a catalyst selected from the group consisting of metallic palladium, ruthenium and rhodium.
Claim 7
Dependent Claim
11 words
The method of claim 5, wherein the catalyst is metallic ruthenium.
Claim 8
Dependent Claim
11 words
The method of claim 5, wherein the catalyst is metallic rhodium.
Claim 9
Dependent Claim
75 words
The method of claim 1, wherein the organo(poly)siloxanes having halogen bonded directly to silicon are prepared by reacting an organo(poly)siloxane having hydrogen bonded directly to silicon with an allyl halide in the presence of a catalyst selected from the group consisting of an acetylacetone complex of a metal selected from the group consisting of palladium, ruthenium and rhodium and an acetylacetone composition containing a metal selected from the group consisting of palladium, ruthenium and rhodium.
Claim 10
Dependent Claim
75 words
The method of claim 1, wherein the organo(poly)siloxanes having halogen bonded directly to silicon are prepared by reacting an organo(poly)siloxane having hydrogen bonded directly to silicon with an allyl halide in the presence of a catalyst selected from the group consisting of a phosphine complex of a metal selected from the group consisting of palladium, ruthenium and rhodium and a phosphine composition containing a metal selected from the group consisting of palladium, ruthenium and rhodium.
Claim 11
Dependent Claim
41 words
The method of claim 1, wherein the acetoxysiloxanes are prepared by reacting an organo(poly)siloxane having hydrogen bonded directly to silicon with an allyl acetate in the presence of a catalyst selected from the group consisting of metallic palladium, ruthenium and rhodium.
Claim 12
Dependent Claim
69 words
The method of claim 1, wherein the acetoxysiloxanes are prepared by reacting an organo(poly)siloxane having hydrogen bonded directly to silicon with an allyl acetate in the presence of a catalyst selected from the group consisting of a phosphine complex of a metal selected from the group consisting of palladium, ruthenium and rhodium and a phosphine composition containing a metal selected from the group consisting of palladium, ruthenium and rhodium.
Claim 13
Dependent Claim
69 words
The method of claim 1, wherein the acetoxysiloxanes are prepared by reacting an organo(poly)siloxane having hydrogen bonded directly to silicon with an allyl acetate in the presence of a catalyst selected from the group consisting of a phosphine complex of a metal selected from the group consisting of palladium, ruthenium and rhodium and a phosphine composition containing a metal selected from the group consisting of palladium, ruthenium and rhodium.
Claim 14
Dependent Claim
39 words
The method of claim 1, wherein the catalyst is present in an amount of from 50 to 1000 parts per million based on the elemental metal and the combined weight of the organo(poly)siloxane and the allylhalide or allyl acetate.
Claim 15
Dependent Claim
32 words
The method of claim 1, wherein the allylhalide or allyl acetate is present in an amount of from 0.5 to 5 mols per gram per atom of hydrogen bonded directly to silicon.
References Cited (Backward Citations)
US4160775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |