| 摘要 |
The invention concerns the manufacturing, on an industrial scale, of multifunctional POS. The aim of the invention is to improve the method of multifunctionalising POS described in WO 96/16 125 to turn it into an industrial method for manufacturing multifunctional POS. This aim is achieved by the invention which concerns a (semi)continuous method of manufacturing POS with Si-alkyl and SiOR (R = alkyl) functionality, in which: 1. a dehydrgenocondensation reactor A is continuously fed with one POS with SiH, a ROH alcohol and platinum; 2. the gas formed is evacuated and recuperated continuously by eliminating the H2 it contains and by recycling the ROH by condensation; 3. the POS with SiH and with SiOR derived from 1., is immediately transferred in a hydrosilylation reactor B, to recuperate finally one POS with Si-alkyl and with SiOR. The invention also concerns a device for implementing this method. The reactor of this device is a multistage one. The invention is applicable to the continuous synthesis of multifunctional POS. |
