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PLATINUM-VINYLSILOXANES

  • US 3,715,334 A
  • Filed: 11/27/1970
  • Issued: 02/06/1973
  • Est. Priority Date: 11/27/1970
  • Status: Expired due to Term
First Claim
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1. In an efficient process for the production of organosilicon adducts containing silicon-carbon bonds, comprising contacting (G) a silicon material containing per molecule, at least one hydrogen atom attached to silicon, there being not more than two hydrogen atoms attached to any one silicon atom, and (J) a material containing aliphatic carbon atoms linked by multiple bonds, there is provided by the present invention, the improvement of contacting (G) and (J) in the presence of the platinum-vinylsiloxane essentially free of chemically combined halogen having at least.01 percent by weight platinum of the formula, in which the ratio of the average gram atoms of halogen to gram atoms of platinum does not exceed 0.1, where R is selected from the group consisting of alkyl radicals, alkenyl radicals, cycloalkyl radicals, aryl radicals, aralkyl radicals and halogenated radicals of the afore-mentioned types, c is an integer equal to 1 to 3, inclusive, d is a whole number equal to 0 to 2 inclusive, e is a whole number equal to 0 to 3 inclusive, x is an integer equal to 1to 100 inclusive, y is a whole number equal to 0 to 198, inclusive, and the sum of x +y is equal to 1 to 199 inclusive, and f has a value between about 0.67 to about 67, while f/x has a value up to about 0.67.

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