发明名称 |
Method for obtaining polysulphide monoorganoxysilanes |
摘要 |
The invention concerns the preparation of sulphur-containing organosilicic compounds of general formula (I) wherein, for example: R1═C1-C15 alkyl; R2 and R3═C1-C6 alkyl; in a mean number ranging from 1.5±0.1 to 5±0.1. Said preparation is carried out by performing successively the following steps (a), (b) and (c): (a) hydrosilylation of the type: R2R3HSi-Hal+CH2═CH—CH2-Hal}Hal-R2R3Si—(CH2)3Hal; (b) alcoholysis of the type: Hal-R2R3Si—(CH2)3-Hal+R1—OH}R′O—R2R3Si—(CH2)3Hal; (c) sulphidization of the type: R′O—R2R3Si—(CH2)3Hal+M2Sx} compound of formula (I); with Hal=a halogen atom and M=alkali metal.
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申请公布号 |
US2011105780(A1) |
申请公布日期 |
2011.05.05 |
申请号 |
US20020497933 |
申请日期 |
2002.12.06 |
申请人 |
RHODIA CHIMIE |
发明人 |
GUENNOUNI NATHALIE;PEVERE VIRGINIE;VOGIN BERNARD |
分类号 |
C07B61/00;C07F7/04;C07F7/18 |
主分类号 |
C07B61/00 |
代理机构 |
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地址 |
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