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Release coating compositions

  • US 5,578,381 A
  • Filed: 08/30/1995
  • Issued: 11/26/1996
  • Est. Priority Date: 08/31/1994
  • Status: Expired due to Term
First Claim
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1. A curable silicone release coating composition comprising:

  • (A) 100 parts by weight of an organosilicon compound having its unit formula selected from;

    ##STR8## wherein R is a monovalent hydrocarbon group having from 1 to 10 carbon atoms and free of aliphatic unsaturation or a haloalkyl group, R1 is a fluorine-containing monovalent organic group having from 6 to 16 carbon atoms and having at least 4 --CF2 -- groups, R2 is selected from R or an alkenyl group having from 2 to 10 carbon atoms, R3 is an alkylene group having from 2 to 10 carbon atoms, a, b, c, and d are positive numbers, m has a value of 0 or 1, n is an integer having a value of 0 to 2, and wherein the organosilicon compound has a weight average molecular weight of at least 1,000, with the proviso that there is at least two silicon-bonded alkenyl groups per molecule;

    (B) 0.3 to 40 parts by weight of an organohydrogenpolysiloxane having at least 3 silicon-bonded hydrogen atoms per molecule; and

    (C) 0.1 to 1,000 parts by weight of a platinum-containing catalyst, said weight being based on the parts by weight of platinum per one million parts by weight of the total of (A) and (B).

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