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Method for the production of acryloxy-containing organopolysiloxane and the acryloxy cyclohexyl organopolysiloxanes

  • US 4,777,233 A
  • Filed: 11/25/1987
  • Issued: 10/11/1988
  • Est. Priority Date: 11/27/1986
  • Status: Expired due to Fees
First Claim
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1. A method for the production of acryloxy-containing organopolysiloxane having in each molecule at least one unit with the general formula


  • space="preserve" listing-type="equation">R.sup.1.sub.a R.sup.2 SiO.sub.(3-a)/2
in which R1 is a monovalent organic group lacking aliphatically unsaturated bonds, R2 is a group having the general formula


space="preserve" listing-type="equation">--(CH.sub.2).sub.3 OCH.sub.2 C(R.sup.3)HCH.sub.2 R.sup.3or the general formula ##STR23## in which R3 is a group with the general formula


space="preserve" listing-type="equation">--OC(O)C(R.sup.4)═

CH.sub.2,in which R4 is the hydrogen atom or methyl and a is 1 or 2, which method comprises reacting an epoxy group-containing organopolysiloxane having in each molecule at least one unit of the general formula ##STR24## in which R1 and a are defined above, is reacted with acrylic acid or methacrylic acid, followed by a reaction with acryloyl chloride or methacryloyl chloride in the presence of a hydrogen chloride acceptor.

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