| abstract |
The present invention relates to a composition comprising: a) from 30 to 99.799989% by weight of at least a straight chain or branched polyorganosiloxane as component A comprising at least two alkenyl or alkynyl groups; b) from 0.1 to 30% by weight At least a straight chain or branched polyorganosiloxane as component B comprising at least three Si-H groups; c) 0.000001 to 1% by weight of a ruthenium hydrogenation catalyst as component C selected from platinum-1,3- Divinyl-1,1,3,3-tetramethyldioxane complex (Karstedt complex), platinum-1,3-diallyl-1,1,3,3-tetra Dioxazane complex, platinum-1,3-divinyl-1,3-dimethyl-1,3-diphenyldioxane complex, platinum-1,1,3, a group consisting of 3-tetraphenyldioxane complex and platinum-1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetraoxane complex Group; d) 0.00001 to 5% by weight of tris(2,4-di-tert-butylphenyl)phosphite as component D; e) 0 to 69.899989% by weight of at least one selectively coated filler as component E; 0 to 69.899989% by weight of one or more linear or branched polyorganosiloxanes as component F, which comprises a di-Si-H terminal group or a Si-H terminal group and a terminal alkenyl group; g) 0 to 69.799989 weight 5% by weight of one or more other linear or branched polyorganosiloxanesnIngredient G;nh) 0 to 10% by weight of one or more additives as component H;nThe components A-H in total are 100% by weight. |