Patents Examined by N. Sarofima
  • Vinyl ethers and fluorine-containing copolymers prepared therefrom
    Patent number: 5066747
    Abstract: Vinyl ethers having a carboxyl group in a form of salt are stable and is usable as materials for fluorine-containing copolymers. The vinyl ethers can provide stable monomer compositions by mixing with vinyl ethers having a free carboxyl group when the former vinyl ethers are present in an amount of not less than 1% by mole of the latter vinyl ethers. The fluorine-containing copolymer prepared by copolymerizing fluoroolefins with the vinyl ethers are useful as aqueous coatings particularly electro dip coatings.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 19, 1991
    Assignee: Daikin Industries, Ltd.
    Inventors: Tatsushiro Yoshimura, Nobuyuki Tomihashi, Tsutomu Terada, Masayuki Yamana, Kazuhiro Nakai, Takayuki Araki