Process for the production of poly(diorganosiloxanes) with...

Details Process for the production of poly(diorganosiloxanes) with... Process for the production of poly(diorganosiloxanes) with...

C - Chemistry, Metallurgy

08

G

C08G 77/08 (2006.01) C08G 77/18 (2006.01) C08L 83/06 (2006.01)

Patent

CA 2185189

In the production of a poly(diorganosiloxane) with diorganyloxyorganylsilyl or triorganyloxysilyl end groups wherein at least one .alpha.,.omega.- dihydroxypoly(diorga- nosiloxane) is reacted with at least one alkoxysilane in the presence of a catalyst, the improvement which comprises employing as the catalyst at least one phosphoric acid ester or salt thereof. The reaction proceeds rapidly and, when complete, the catalyst can easily be deactivated to prevent degradation and/or rearrangement.

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