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

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. Die Erfindung betrifft bei Raumtemperatur selbsthaftende Ptkatalysierte additionsvernetzende Siliconzusammensetzungen, ihre Herstellung sowie die durch Vernetzung erhaltenden Materialien. Die erfindungsgemäßen Siliconzusammensetzungen bauen dabei auf nicht-vorbehandelten Substraten rasch Haftung auf.