Method for the manufacture of branched polysiloxane

Details Method for the manufacture of branched polysiloxane Method for the manufacture of branched polysiloxane

C - Chemistry, Metallurgy

08

G

C08G 77/44 (2006.01) C08G 77/04 (2006.01) C08G 81/00 (2006.01)

Patent

CA 2090180

The present invention is a novel method for the manufacture of branched polysiloxanes having the polysiloxane SiO4/2 unit as the branch center precisely bonded to one end of a diorganopolysiloxane. The present invention concerns a method for the manufacture of a branched polysiloxane characterized by reacting a linear polysiloxane with a reactive polysiloxane having halogen substitution.

Nouvelle méthode pour la production de polysiloxanes ramifiés, dont l'unité SiO4/2 de polysiloxane est le centre de ramification spécifiquement lié à une extrémité d'un diorganopolysiloxane. La présente invention concerne une méthode pour la production d'un polysiloxane ramifié par réaction du polysiloxane linéaire et d'un polysiloxane réactif avec substitution par un halogène.

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