Patents by Inventor Akihito Iida

Akihito Iida 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).

  • Patent number: 6465589
    Abstract: A paint composition is provided, which comprises a copolymer comprising the following constitutional units (A), (B), and (C) as essential components: (A) a (meth)acrylate monomer unit having a straight-chain, branched-chain, or cyclic alkyl group; (B) at least one monomer unit selected from the group consisting of a monomer unit having an unsaturated double bond and a hydroxyalkyl group, a monomer unit having an unsaturated double bond and an epoxy group, and a monomer unit having an unsaturated double bond and an alkoxysilyl group; and (C) a monomer unit having an unsaturated double bond and a maleimide group. The paint composition is excellent in weatherability and coating gloss. The composition may be contained in an organic solvent such as cyclic ethers, aromatic hydrocarbons, esters, and ketones. The organic solvent may be one that comprises 40% or more of a saturated hydrocarbon.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: October 15, 2002
    Assignee: Toagosei Co., Ltd.
    Inventors: Hiroshi Inukai, Eiichi Okazaki, Kunihiko Mizutani, Akihito Iida
  • Publication number: 20010003764
    Abstract: A paint composition is provided, which comprises a copolymer comprising the following constitutional units (A), (B), and (C) as essential components: (A) a (meth)acrylate monomer unit having a straight-chain, branched-chain, or cyclic alkyl group; (B) at least one monomer unit selected from the group consisting of a monomer unit having an unsaturated double bond and a hydroxyalkyl group, a monomer unit having an unsaturated double bond and an epoxy group, and a monomer unit having an unsaturated double bond and an alkoxysilyl group; and (C) a monomer unit having an unsaturated double bond and a maleimide group. The paint composition is excellent in weatherability and coating gloss. The composition may be contained in an organic solvent such as cyclic ethers, aromatic hydrocarbons, esters, and ketones. The organic solvent may be one that comprises 40% or more of a saturated hydrocarbon.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 14, 2001
    Inventors: Hiroshi Inukai, Eiichi Okazaki, Kunihiko Mizutani, Akihito Iida
  • Patent number: 5973090
    Abstract: A cold-setting coating composition comprising: a fulorocopolymer comprising (a) a fluoroolefin monomer unit, (b) a (meth)acrylic ester monomer unit, (c) an organosilicon monomer unit represented by a specific formula, (d) other radically polymerizable monomer unit, proportions of said units (a), (b), (c) and (d) being 5 to 70 mole %, 20 to 80 mole %, 1 to 20 mole % and 0 to 30 mole %, respectively, based on the total mole of the units (a), (b), (c) and (d), and the fluoropolymer having a glass transition (Tg) of 15 to 60.degree. C. a curing catalyst; and an organic solvent. The cold-setting coating composition has excellent weather resistance and stain resistance.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: October 26, 1999
    Assignee: Toagosei Co., Ltd.
    Inventors: Yasuomi Maruyama, Akihito Iida, Hiroshi Inukai
  • 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
  • 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