Patents Examined by J. M. Reddic
  • Stable chlorinated resin latex
    Patent number: 5234989
    Abstract: Self-stabilized resin latexes are provided which contain carboxylate salts of post-chlorinated ethylene copolymers having chlorine contents of 20-60 weight percent. The ethylene copolymer salts are derived from ethylene/acrylic acid or ethylene/methacrylic acid copolymers containing 1.5-12 mole percent copolymerized units of acrylic or methacrylic acid. The latexes are particularly useful for preparing resorcinol formaldehyde adhesives.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: August 10, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John C. Chen, Royce E. Ennis