Crosslinkable fluorinated aromatic ether composition

  • US 5,179,188 A
  • Filed: 04/22/1991
  • Issued: 01/12/1993
  • Est. Priority Date: 04/17/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. A composition (a) comprising 3 to 30 repeat units of the formula ##STR32## wherein --W-- is ##STR33## wherein each --A is independently --F, --Cl, --Br, --CF3, --CH3, --CH2 CH═

  • CH2, or --C6 H5 ;

    p is 0, 1, or 2;

    --Z-- is a direct bond, or Z is --C(CH3)2 --, --C(CF3)2 --, --O--, --S--, --SO2 --, --CO--, --P(C6 H5)--, --C(CH3)(C6 H5), --C(C6 H5)2 --, --(CF2)1-6 --, ##STR34## wherein --Y-- is --O-- or Y is a direct bond; and

    m is 0, 1, or 2;

    each --X is independently --H, --Cl, --Br, --CF3, --CH3, --CH2 CH═

    CH2, or --C6 H5 ;

    q is 0, 1, or 2;

    and n is 1 or 2;

    and (b) being terminated at each end with a reactive end group --L which is --CH2 --CH═

    CH2, --CH2 --C.tbd.CH, ##STR35## where --R1 is --H, C1 -C4 alkyl, or --C6 H5 ;

    --R2 is H, C1 -C4 alkyl, --CN, or --C6 H5 ;

    --R3 is --H, --C6 H5, or --Si(CH3)3 ; and

    --R4 is C1 -C4 alkyl or phenyl.

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