Patent JPH02180367A successfully refreshed from Google Patents.
Patent EP0496597A1 successfully refreshed from Google Patents.
EP0496597A1
Expired / Lapsed
EP
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Preparation of hydrogensiloxanes
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1992-01-22
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Granted: —
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Expires: 2012-01-22
Abstract
Abstract There is provided a process for preparing a hydrogensiloxane of the following general formula (2): wherein Rf is a perfluoropolyether or perfluoroalkylene group, n is equal to 1, 2 or 3, and p is equal to 0 or 1, said process comprising the step of hydrolyzing a chlorosilane of the following general formula (1): wherein Rf, n and p are as defined above, along with 1,1,3,3-tetramethyldisiloxane.
Inventors
- 👤 Yasushi Yamamoto
- 👤 Hideki Fujii
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 07:35
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0801
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A process for preparing a hydrogensiloxane of the following general formula (2): wherein Rf is a perfluoropolyether or perfluoroalkylene group, n is equal to 1, 2 or 3, and p is equal to 0 or 1, said process comprising the step of hydrolyzing a chlorosilane of the following general formula (1): wherein Rf, n and p are as defined above, along with 1,1,3,3 - tetramethyldisiloxane.
Claim 2
Dependent Claim
15 words
The process of claim 1 wherein the hydrolysis is carried out in aqueous hydrochloric acid.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein Rf is a perfluoropolyether group having 4 to 15 carbon atoms.
Claim 4
Dependent Claim
17 words
The process of claim 1 wherein Rf is a perfluoroalkylene group having 2 to 10 carbon atoms.
References Cited (Backward Citations)
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