Patent ID: 7759434

Claim:
A crosslinkable silicone composition comprising A1) 100 parts by weight of at least one polydiorganosiloxane of the average formula (I) R 1 a R 2 b R 3 c R 4 d SiO (4-a-b-c-2d)/2 (I) where the radicals R 1 are, independently of one another, monovalent, unsubstituted or halogen-substituted hydrocarbon radicals which have from 1 to 20 carbon atoms, are free of aliphatically unsaturated groups, and optionally contain heteroatoms, the radicals R 2 are identical or different, monovalent, aliphatically unsaturated, unsubstituted or halogen-substituted hydrocarbon radicals which have from 2 to 20 carbon atoms, optionally contain heteroatoms, and are capable of undergoing free-radical crosslinking or a hydrosilylation reaction, the radicals R 3 are monovalent radicals containing a β-ketocarbonyl group, the radicals R 4 are divalent radicals of the formula (II) R 5 L x M L y R 5 (II) where the radicals R 5 are divalent, unsubstituted or substituted hydrocarbon radicals which are free of aliphatic carbon-carbon multiple bonds and have from 2 to 20 carbon atoms and optionally have an oxygen atom on one or both valences, the radicals L are functional groups selected from the group consisting of β-ketocarbonyl compounds, terpyridine compounds, catechol-functional compounds and cyclopentadienyls, which are bound covalently to R 5 and are bound ionically, organometallically or covalently to M, M is a metal atom, metal ion or an ionic group and x is 0 or 1, y is 0 or 1, with the proviso that when x=0 or y=0, R 5 is bound directly to M, a is from 1.6 to 2.0, b is ≧0 and up to 0.2, c is zero or from 0.001 to 0.2 and d is zero or from 0.001 to 0.2, with the proviso that in the absence of constituent A2, at least one of the indices c and d is not zero and c+d≧0.001, A2) 0 -60 parts by weight of at least one compound of the general formula (III) having ionic, organometallic or ionic and organometallic groups R 2 L x M L y R 2 (III) where R 2 , L, x, y and M are as defined above, B) 1-20 parts by weight of at least one crosslinker, C) optionally 0-200 parts by weight of reinforcing fillers or nonreinforcing fillers, D) optionally 0-100 parts by weight of catalyst and E) optionally 0-100 parts by weight of further constituents comprising color pigments, catalysts, inhibitors, plasticizers, solvents, stabilizers, flame-retardant additives, coupling agents, silicone resins, mold release agents, antistatics, hollow microspheres, blowing agents, antistick regulating additives, additives which increase the thermal or electrical conductivity, or mixtures thereof.