Patents by Inventor Etsuzo Marumoto

Etsuzo Marumoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aqueous fluororesin coating composition and process for producing same
    Patent number: 5898042
    Abstract: An aqueous fluororesin coating composition and a process for producing the same, the coating composition comprising a core/shell fluorine-containing copolymer dispersed in an aqueous medium, the core/shell fluorine-containing copolymer comprising a core comprising a fluorine-containing copolymer comprising a repeating unit derived from a fluoroolefin monomer and a repeating unit derived from a vinyl carboxylate monomer and having a glass transition point Tg of 40.degree. C. or more, and a shell comprising a fluorine-containing copolymer comprising a repeating unit derived from a fluoroolefin monomer and a repeating unit derived from a vinyl carboxylate monomer and having a glass transition point Tg of from -10 to 30.degree. C., the weight ratio of the core to the shell being from 20/1 to 1/2.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 27, 1999
    Assignee: Toagosei Co., Ltd.
    Inventors: Hiroyuki Sawada, Etsuzo Marumoto, Akihito Iida, Tatsuo Nishio, Hiroshi Inukai
  • Fluorine-containing copolymer and coating composition containing the copolymer
    Patent number: 5064920
    Abstract: The present invention provides a fluorine-containing copolymer which comprises the following monomers as essential components:(a) a fluoroolefin,(b) a hydroxyalkyl crotonate, and(c) a vinyl monomer other than the above monomers (a) and (b). The present invention further provides a coating composition comprising the above fluorine-containing copolymer and a crosslinking agent having a functional group which reacts with hydroxyl group.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: November 12, 1991
    Assignee: Toagosei Chemical Industry Co., Ltd.
    Inventors: Etsuzo Marumoto, Masanobu Koyama, Akihito Iida, Yukiya Sakamoto, Makoto Aoyama, Mamoru Takahashi