发明名称 Process for the manufacture of multifunctional polyorganosiloxanes (POSs) by dehydrocondensation and hydrosilylation, and device for carrying out this process
摘要 The invention concerns the manufacturing, on an industrial scale, of multifunctional polyorganosiloxanes. The process of the invention is a (semi) continuous method of manufacturing polyorganosiloxanes with Si-alkyl and SiOR (R-alkyl) functionality, in which: 1. A dehydrogenocondensation reactor A is continuously fed with one polyorganosiloxanes with SiH, a ROR alcohol and platinum; 2. The gas formed is evacuated and recuperated continuously by eliminating the hydrogen H2 it contains and by recycling the ROH by condensation; 3. The polyorganosiloxanes with SiH and with SiOR derived from 1., is immediately transferred in a hydrosilylation reactor B, to recuperate finally one polyorganosiloxanes with Si-alkyl and with SiOR.
申请公布号 US6472492(B2) 申请公布日期 2002.10.29
申请号 US20010861043 申请日期 2001.05.18
申请人 RHODIA CHIMIE 发明人 PRIOU CHRISTIAN;VIOLLAND ROBERT
分类号 C08G77/38;C08G77/392;(IPC1-7):C08G77/08 主分类号 C08G77/38
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