C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/18, 260/442.
C08G 77/385 (2006.01) C08G 77/04 (2006.01)
Patent
CA 2035549
There is disclosed an organopolysiloxane having a molecular weight of 200 to 100,000 which contains at least one silicon-bonded, chloroformyl group-containing organic group, said organopolysiloxane being prepared by reacting (I) the corresponding organopolysiloxane which contains at least one silicon-bonded, triorganosiloxycarbonyl group-containing organic group; and (II) an inorganic halide, such as thionyl chloride. By virtue of its highly reactive chloroformyl group, the organopolysiloxane of the invention find utility as modifiers for polyamide resins, polyester resins, and the like.
L'invention porte sur un organopolysiloxane de 200 à 100 000 de masse molaire, renfermant au moins un groupe organique, contenant lui-même un groupe chloroformyle et lié au silicium. Cet organopolysiloxane est préparé par réaction (I) de l'organopolysiloxane correspondant renfermant au moins un groupe organique, contenant lui-même un groupe triorganosiloxycarbonyle et lié au silicium, et (II) d'un halogénure minéral, comme le chlorure de thionyle. Grâce à son groupe chloroformyle hautement réactif, l'organopolysiloxane de l'invention permet de modifier les résines de polyamide, les résines de polyester et d'autres encore.
Dow Corning Toray Silicone Company Ltd.
Gowling Lafleur Henderson Llp
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