Method for accelerating the activity of a hydrosilation catalyst

Claim 3

The method of claim 1, wherein the ammonium platinum silicon complex is reacted with the compound containing olefinic unsaturation and thereafter the resultant composition is reacted with a basic compound.

Claim 4

The method of claim 1, wherein the ammonium platinum complex is reacted with a basic compound and thereafter the resultant composition is reacted with a compound containing olefinic unsaturation.

Claim 7

The method of claim 1, wherein the reaction is conducted at a temperature of from 0° to 150° C.

Claim 8

The method of claim 1, wherein the reaction is conducted in the presence of a solvent and at the reflux temperature of the solvent.

Claim 9

The catalyst obtained from the method of claim 1.

Claim 10

A method for preparing organosilicon compounds having carbon-silicon bonds which comprises contacting a silicon compound having at least one .tbd.SiH bond per molecule which is selected from the group consisting of silanes of the formula R.sub.e Si(H).sub.f X.sub.4-e-f and siloxanes of the formula PS R.sub.x Si(H).sub.y (O).sub.(4-x-y)/2 in which R is selected from the group consisting of a monovalent hydrocarbon radical and a halogenated monovalent hydrocarbon radical having from 1 to 18 carbon atoms, X is a hydrolyzable group, e is a number of from 0 to 3, f is a number of from 1 to 3 and the sum of e and f is from 1 to 4, x is a number of from 0.5 to 2.49, y is a number of from 0.001 to 1 and the sum of x+y is a number of from 1 to 2.5 with a compound having at least one aliphatically unsaturated carbon-to-carbon bond in the presence of the platinum catalyst of claim 1.

Claim 11

The method of claim 9, wherein the silicon compound is a silane of the formula R.sub.e Si(H).sub.f X.sub.4-e-f in which R is selected from the group consisting of a monovalent hydrocarbon radical and a halogenated monovalent hydrocarbon radical having from 1 to 18 carbon atoms, X is a radical selected from the class consisting of halogen, alkoxy radicals, aryloxy radicals and acyloxy radicals, e is a number of from 0 to 3, f is a number of from 1 to 3 and the sum of e+f is a number of from 1 to 4.

Claim 12

The method of claim 9, wherein the silicon compound is a siloxane of the formula Ti R x Si(H) y (O).sub.(4-x-y)/2 in which R is selected from the group consisting of a monovalent hydrocarbon radical and a halogenated monovalent hydrocarbon radical having from 1 to 18 carbon atoms, x is a number of from 0.5 to 2.49, y is a number of from 0.001 to 1.0 and the sum of x+y is a number of from 1.0 to 2.5.

Claim 13

The method of claim 9, wherein the organic compound is a silicon compound having at least one unsaturated carbon-to-carbon bond.

Claim 14

The method of claim 9, wherein the silicon compound having at least one .tbd.Si--H bond per molecule is reacted with the compound having at least one aliphatically unsaturated carbon-to-carbon bond in the presence of the platinum catalyst at a temperature of from 25° to about 150° C.

Claim 15

The method of claim 9, wherein from 0.5 to 20 silicon bonded hydrogen atoms are present for each aliphatically unsaturated carbon-to-carbon double bond present in the compound.

Claim 16

The method of claim 9, wherein the amount of ammonium platinum silicon complex ranges from about 0.1 to 500 parts per million of elemental platinum based on the weight of the silicon compound containing at least one .tbd.SiH bond per molecule and the compound containing at least one aliphatically unsaturated carbon-to-carbon bond.