Method for preparing organopolysiloxanes

Details Method for preparing organopolysiloxanes Method for preparing organopolysiloxanes

C - Chemistry, Metallurgy

08

G

C08G 77/08 (2006.01)

Patent

CA 2058496

DOC PATENT DEPT.- G.S & H:#16/16 METHOD OF PREPARING ORGANOPOLYSILOXANES Abstract of the Disclosure Highly thermally stable, highly transparent straight-chain organopolysiloxanes are described which are prepared according to a method for the preparation of straight-chain organopolysiloxanes by the polymerization of low-molecular-weight organopolysiloxane cyclics in the presence of a tetramethylammonium hydroxide-type catalyst. The method for the preparation of straight-chain organopolysiloxanes is characterized by the use of a tetramethylammonium hydroxide-type catalyst which contains no more than 0.005 weight% of chlorine atom and no more than 0.0005 weight% of alkali metal atom.

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