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Radiation curable coating composition based on a silica/vinyl-functional silanol dispersion

  • US 4,822,828 A
  • Filed: 11/23/1987
  • Issued: 04/18/1989
  • Est. Priority Date: 11/23/1987
  • Status: Expired due to Term
First Claim
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1. A radiation curable composition comprising:

  • (a) from 50 to 85 percent, based on the total weight of the composition, of colloidal silica and the partial condensate of a silane, such that at least sixty percent of the silane is a vinyl-functional silane conforming to the formula
    
    
    space="preserve" listing-type="equation">(R).sub.a Si(R'"'"').sub.b (R").sub.c whereinR is allyl or vinyl-functional alkylR'"'"' is hydrolyzable alkoxy or phenoxyR" is non-hydrolyzable, saturated alkyl, phenyl, or siloxy such that a+b+c=4; and

    a≧

    1;

    b≧

    1;

    c≧

    0,(b) from 15 to 50 percent, based on the total weight of the composition, of one or more multifunctional acrylate or methacrylate monomers.

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