Neutralization of catalyst in polymerization of...

C - Chemistry – Metallurgy – 08 – G

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C08G 77/32 (2006.01) C08G 77/06 (2006.01)

Patent

CA 1285687

NEUTRALIZATION OF CATALYST IN POLYMERIZATION OF POLYDIORGANOSILOXANE Abstract A high molecular weight polydiorganosiloxane, produced by the alkaline catalysis of dialkylcyclotetra- siloxane, has a lower -SiOH content when the catalyst is neutralized with a composition of the formula R'3SiOC(O)R" where R' is a hydrocarbon radical of from 1 to 6 carbon atoms inclusive and R" is a hydrocarbon radical of from 1 to 8 carbon atoms inclusive.

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