Patent ID: 8710254
Filing Date: 2014-04-29
Classification: C07F

Abstract:
1. A method for producing organooligosilsesquioxanes of the formula (I) where R represents moieties of general formula (II) by reacting of silicates of formula (III) with not more than 1.3×50×z mol of disiloxane compounds of general formula (IV), per 100 mol of the silicates of the formula (III), wherein R Y independently are hydrogen or a halogenated or nonhalogenated C W is a C z is 6, 8 or 10, reacting taking place in the presence of a precipitant which is liquid at at 25° C. and 0.1 Mpa and in which at a reaction temperature of 0° C. to 60° C., at most 1 g of organooligosilsesquioxanes of formula (I) are soluble in 100 ml of precipitant, wherein the resultant organooligosilsesquioxane of formula (I) crystallizes out in the reaction medium at a purity of 95-100%, measured via 1 H NMR, during the reaction or directly after the reaction.