Patent ID: 7737292
Filing Date: 2010-06-15
Classification: C08G

Abstract:
1. A process for the continuous preparation of organopolysiloxanes, comprising: in a first step, continuously reacting a silane component consisting essentially of one or more chlorosilanes with from 0.01 to 0.7 mol of water per mole of hydrolyzable chlorine and with from 0.2 to 1.7 mol of alcohol per mole of hydrolyzable chlorine, the molar ratio of water to alcohol being from 0.005 to 3.5, in a second step, continuously metering the reaction mixture from the first step into water, in amounts of from 0.2 to 100 mol of water per mole of silicon component, the reaction mixture from the first step mixed with a water-insoluble organic solvent having a density of less than 0.9 kg/l, and in a third step, separating an aqueous alcoholic phase from a phase comprising organopolysiloxane and water-insoluble organic solvent.