Process for preparing organo(poly)siloxanes having...

Details Process for preparing organo(poly)siloxanes having... Process for preparing organo(poly)siloxanes having...

C - Chemistry, Metallurgy

08

G

402/16

C08G 77/20 (2006.01) C08G 77/38 (2006.01)

Patent

CA 2022076

Docket No. Wa 8920-S Paper No. 1 A PROCESS FOR PREPARING ORGANO(POLY)SILOXANES HAVING Si-LINKED, CONJUGATED DIENYL GROUPS Abstract of the Disclosure Organo(poly)siloxanes having Si-linked, conjugated dienyl groups are prepared by adding a secondary or tertiary acetylenic alcohol (1) to an organo(poly)siloxane (2) having at least one Si-linked hydrogen atom in the presence of a catalyst (3) which promotes the addition of Si-linked hydro- gen to an aliphatic multiple bond, and then eliminating water by an intramolecular reaction in the presence of an acid catalyst (4) from the alkenol groups of the organo(poly)si- loxane thus obtained.

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