Patents Examined by Jeseph L. Schofer
  • Water- and oil-repellent fluoro(meth)acrylate copolymers
    Patent number: 5344903
    Abstract: Lower homologue perfluoroalkylethyl (meth)acrylates copolymerized with vinylidene chloride and alkyl (meth)acrylates; optionally with N-methylolacrylamide, hydroxyalkyl (meth)acrylates, and/or alkyloxy (meth)acrylates, impart high levels of water-, alcohol- and oil-repellency to fabrics under mild conditions.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: September 6, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kimberly G. Raiford, Edward J. Greenwood, Robert H. Dettre