CURABLE SILICONE COMPOSITION

A curable silicone composition comprising: (A-1) a linear polysiloxane having DP from 25 to 10,000 and comprising from 2-25 R' groups; (A-2) a resin type polysiloxane containing units having structures (R3SiO1/2)a, (RSiO3/2)b, and (R'SiO3/2)c where R is alkyl, and R' is alkenyl; where...

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Bibliographic Details
Main Authors YEAKLE, Craig, KADLEC, Donald, MCDONALD, Joel P
Format Patent
LanguageEnglish
French
Published 28.06.2018
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A curable silicone composition comprising: (A-1) a linear polysiloxane having DP from 25 to 10,000 and comprising from 2-25 R' groups; (A-2) a resin type polysiloxane containing units having structures (R3SiO1/2)a, (RSiO3/2)b, and (R'SiO3/2)c where R is alkyl, and R' is alkenyl; where a+b+c is from 0.90 to 1, and 0.2<a<0.5, 0.2<b<0.7, 0.02<c<0.3; (B) a crosslinker; and (C) 0.1-20 ppm of a hydrosilylation catalyst contained in a polysiloxane. L'invention concerne une composition de silicone durcissable comprenant : (A-1) un polysiloxane linéaire présentant un degré de polymérisation de 25 à 10 000 et comprenant de 2 à 25 groupes R' ; (A-2) un polysiloxane de type résine contenant des motifs présentant les structures (R3SiO1/2)a, (RSiO3/2)b et (R'SiO3/2)c où R est un alkyle et R' est un alcényle ; où a + b + c est égal à 0,90 à 1, et 0,2 < a < 0,5, 0,2 < b < 0,7, 0,02 < c < 0,3 ; (B) un agent de réticulation ; et (C) 0,1 à 20 ppm d'un catalyseur d'hydrosilylation contenu dans un polysiloxane.
Bibliography:Application Number: WO2017US63589