发明名称 |
METHOD FOR PREPARING SILICON WITH HIGH PURITY ESTER FUNCTION |
摘要 |
The invention concerns a method for preparing polyorganosiloxanes with high purity ester function (acetoxyalkyl or acetoxyalkenyl), consisting in: hydrosilylation between a hydrogenopolyorganosiloxane oil and alpha-olefin alcohol; esterification of the resulting hydroxy-alkylated or polyorganosiloxane with an acetyl halide; elimination of alpha-olefin derivatives and the halohydric acid formed. The resulting polyorganosiloxanes with ester function (acetoxyalkyl) have global siloxane, alpha-olefin unit and/or alpha-olefin impurities contents corresponding to a number of alpha-olefin groups for 100 g of polyorganosiloxane, with ester function less than 10-3 mol. |
申请公布号 |
EP1042390(A1) |
申请公布日期 |
2000.10.11 |
申请号 |
EP19980964535 |
申请日期 |
1998.12.29 |
申请人 |
RHODIA CHIMIE |
发明人 |
JOST, PHILIPPE;MIGNANI, GERARD;OLIER, PHILIPPE |
分类号 |
C08G77/38;C08L83/05 |
主分类号 |
C08G77/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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