Patents by Inventor Takeshi Awata

Takeshi Awata 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 dispersed resin composition
    Patent number: 5472996
    Abstract: An aqueous dispersed resin composition comprising (A) an aqueous dispersion of carbonyl-containing resin particles having an inner layer and an outermost layer, which is obtained by emulsion polymerization of a monomer mixture comprising (a) not less than 0.5% by weight of a carbonyl-containing monomer containing at least one aldo group or keto group and one polymerizable unsaturated double bond in the molecule thereof, (b) not less than 0.5% by weight of an ethylenically unsaturated carboxylic acid, (c) not more than 99% by weight of a monomer having a water-solubility of not more than 8 g/100 ml at 20.degree. C.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: December 5, 1995
    Assignee: Mitsubishi Yuka Badische Co., Ltd.
    Inventors: Ryutaro Hayashi, Masahiro Aoki, Toyoji Tomita, Yoshinori Kato, Takeo Tsukamoto, Takeshi Awata
  • Aqueous dispersed resin composition
    Patent number: 5447970
    Abstract: An aqueous dispersed resin composition is disclosed, comprising (A) an aqueous dispersion of carbonyl-containing resin particles having an inner layer and an outermost layer, which is obtained by emulsion polymerization of a monomer mixture comprising (a) not less than 0.5% by weight of a carbonyl-containing monomer containing at least one aldo group or keto group and one polymerizable unsaturated double bond in the molecule thereof, (b) not less than 0.5% by weight of an ethylenically unsaturated carboxylic acid, (c) not more than 99% by weight of a monomer having a water-solubility of not more than 8 g/100 ml at 20.degree. C.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: September 5, 1995
    Assignee: Mitsubishi Yuka Badische Co., Ltd.
    Inventors: Toyoji Tomita, Masahiro Aoki, Takeo Tsukamoto, Takeshi Awata, Ryutaro Hayashi
  • Aqueous crosslinkable resin composition
    Patent number: 5432229
    Abstract: An aqueous crosslinking resin composition comprising (I) an aqueous resin dispersion obtained by emulsion polymerization of a monomer mixture consisting of (a) 2 to 50% by weight of an unsaturated carboxylic acid monomer, (b) 0.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: July 11, 1995
    Assignee: Mitsubishi Yuka Badische Co., Ltd.
    Inventors: Masahiro Aoki, Takeo Tsukamoto, Ryutaro Hayashi, Yoshinori Kato, Takeshi Awata
  • Process for producing aqueous copolymer dispersion from a vinyl monomer mixture
    Patent number: 5008329
    Abstract: A process for producing an aqueous copolymer dispersion is disclosed, which comprises emulsion polymerizing 100 parts by weight of a vinyl monomer mixture comprising (A) from 60 to 99.8% by weight of an acrylic ester of an aliphatic saturated alcohol having from 4 to 8 carbon atoms, (B) from 0.2 to 10% by weight of a monomer selected from the group consisting of an .alpha.,.beta.-unsaturated carboxylic acid, an .alpha.,.beta.-unsaturated carboxylic acid anhydride, a 2-hydroxyalkyl acrylate, a 2-hydroxyalkyl methacrylate, acrylamide, methacrylamide, methylolacrylamide, and methylolmethacrylamide, and (C) up to 30% by weight of a vinyl monomer other than the monomers (A) and (B) in the presence of from 0.01 to 10 parts by weight of a compound having an allyl hydrogen atom, with a total amount of the monomers (A), (B) and (C) being 100% by weight.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: April 16, 1991
    Assignee: Mitsubishi Yuka Badische Co., Ltd.
    Inventors: Tadashi Abe, Masahiro Aoki, Tsunenori Takahashi, Takeshi Awata