Pt-catalyzed, addition-crosslinking silicone compositions self-adhesive at room temperature

摘要

Addition crosslinking silicone composition comprises: (a) at least one compound (A), (M) or (L), where (A) is an organosilicon compound containing at least two residues with aliphatic carbon-carbon multiple bonds, (M) is an organosilicon compound containing at least two silicon-bonded hydrogen atoms and (L) is an organosilicon compound containing silicon carbide-bonded residues having aliphatic carbon-carbon multiple bonds and a silicon-bonded hydrogen atom; (b) at least a platinum catalyst; and (c) at least one alpha -silane. Addition crosslinking silicone composition comprises: (a) at least one compound (A), (M) or (L), where (A) is an organosilicon compound containing at least two residues with aliphatic carbon-carbon multiple bonds, (M) is an organosilicon compound containing at least two silicon-bonded hydrogen atoms and (L) is an organosilicon compound containing silicon carbide-bonded residues having aliphatic carbon-carbon multiple bonds and silicon-bonded hydrogen atom, with a condition that the composition contains at least one compound with aliphatic carbon-carbon multiple bonds and at least one compound with silicon-bonded hydrogen atom; (b) at least one platinum catalyst in a catalytic amount; and (c) at least one alpha -silane of formula (Y1-CH 2-SiR 1> n(OR) 3 - n) (I) Y1 : glycidoxy, methacryloyloxy or vinyl; R : optionally substituted alkyl, acetoxy, 1-6C propionyloxy; R 1> : methyl; and n : 0 or 1. An independent claim is also included for preparing the addition cross-linking silicone, comprising evenly mixing all the components.