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Water and oil repellent compositon

  • US 6,177,531 B1
  • Filed: 07/23/1998
  • Issued: 01/23/2001
  • Est. Priority Date: 07/23/1997
  • Status: Expired due to Term
First Claim
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1. A water and oil repellent composition containing, as an effective component, a copolymer comprising the following polymeric units (a), (b), and at least one member selected from (c) and (d):

  • polymeric units (a) of a (meth)acrylate having a polyfluoroalkyl group;

    polymeric units (b) of 2-isocyanate ethyl (meth)acrylate with the isocyanate group blocked;

    polymeric units (c) of vinyl chloride; and

    polymeric units (d) of an alkyl (meth)acrylate with the proviso that said copolymer does not contain a polymeric unit of a (meth)acrylate having a polyoxyalkylene chain.

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