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Photocurable organopolysiloxane compositions

  • US 4,293,397 A
  • Filed: 02/08/1980
  • Issued: 10/06/1981
  • Est. Priority Date: 02/23/1979
  • Status: Expired due to Term
First Claim
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1. A photocurable organopolysiloxane composition which comprises (a) 100 parts by weight of an acryloyloxy-containing organopolysiloxane represented by the general formula ##STR13## where R1 is a divalent hydrocarbon group, R2 is a monovalent hydrocarbon group, X is a hydroxy group or a hydrolyzable group, k is zero or a positive integer not exceeding 4, m is a positive integer from 50 to 10,000, a is zero, 1 or 2 and at least two of the groups denoted by A in a molecule are each an acryloyloxy-containing group represented by the formula ##STR14## R3 being a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms and n being a positive integer from 1 to 10, the remainder of A being each a hydrogen atom, and (b) from 0.1 to 30 parts by weight of a photosensitizer.

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