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Siloxane macromonomers

  • US 5,336,797 A
  • Filed: 12/30/1992
  • Issued: 08/09/1994
  • Est. Priority Date: 12/30/1992
  • Status: Expired due to Term
First Claim
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1. An oil soluble, non-surface active siloxane macromonomer represented by the following structural formula:

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    space="preserve" listing-type="equation">B--E--(T).sub.mwherein each B is a polymerizable end group containing at least one ethylenically unsaturated group and a functional group which reacts to form an ester, amide, urea, urethane, carbonate or epoxy type linkage with the rest of the macromonomer;

    E is a functionalized chain transfer agent;

    T has the following structural formula;

    ##STR13## wherein n is an integer from 1 to 6, A is O, ##STR14## NH or ##STR15## R1 is H or CH3 ; and

    each R2 is independently selected from a C1 -C8 alkyl group, a phenyl group and a group of the following structural formula;

    ##STR16## wherein each Y is independently selected from a C1 -C8 alkyl group, a phenyl group and a (R)3 OSi-group wherein each R is independently a lower alkyl group; and

    m is an integer from 1 to 120.

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