Patent ID: 7683198

Claim:
A process for preparing diorgano(poly)siloxanes of the formula (I) R 1 R 2 Si(OSiR 2 ) m (OSiR 2 2 ) n OH (I), comprising reacting hexaorganocyclotrisiloxane of the formula (II) (R 2 2 SiO) 3 (II) with sil(ox)anols of the formula (III) R 1 R 2 Si(OSiR 2 ) m OH (III) in the presence of a catalyst, and optionally driers, solvents, phase transfer catalysts, lithium compounds, or mixtures thereof, where R is a monovalent, unsubstituted or substituted C 1 -C 13 hydrocarbon radical, R 1 is a hydrogen atom or an unsubstituted or substituted C 1 -C 13 hydrocarbon radical, R 2 is a monovalent, unsubstituted or substituted C 1 -C 13 hydrocarbon radical, m is 0 or an integer of at least 1 to 3 and n is an integer of 3 to 1000, the sil(ox)anols of formula (III) have a water content of below 1% by weight and the catalyst comprises an alkaline earth metal carbonate, alkali metal carbonate, alkaline earth metal oxide, alkali metal oxide or a mixture of two or more of these compounds.