Platinum complexes of unsaturated siloxanes and platinum containing organopolysiloxanes

摘要: PLATINUM COMPLEXES OF UNSATURATED SILOXANES ARE PROVIDED WHICH USEFUL AS HYDROSILATION CATALYSTS. THESE PLATINUM-SILOXANE MUST CONTAIN LESS THAN ABOUT 0.1 GRAM ATOM HALOGEN, PER PLATINUM, AND PREFERABLY SUBSTANTIALLY FREE HALOGEN INCLUDE INORGANIC HALOGEN. CAN BE MADE BY EFFECTING CONTACT BETWEEN A HALIDE AN SILOXANE, FOR EXAMPLE, 1,3-DIVINYLTETRAMETHYLDISILOXANE, REMOVING AVAILABLE FROM THE RESULTING MATERIAL. IN ADDITION, CURABLE ORGANOPOLYSILOXANE COMPOSITIONS COMPRISING POLYMER EFFECTIVE AMOUNT SUCH COMPLEX.