Patents by Inventor Kazutaka Mochizuki

Kazutaka Mochizuki 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).

  • Polyurethane composition for powder coating
    Patent number: 4404320
    Abstract: A polyurethane based composition for powder coating uses, which comprises a combination of an organic polyisocyanate compound and a hydroxyl-containing compound, the hydroxyl-containing compound being(A) A hydroxyl-containing polymer, or its carboxyl-modified product, obtained by hydrolyzing a copolymer of a vinyl ester of a saturated monocarboxylic acid and other polymerizable vinyl monomers, and(B) A polyester polyol of softening point of not lower than 40.degree. C. containing not less than 30 weight % of cyclohexylene or cyclohexenylene group or spiro rings.The composition provides coating film exhibiting exceedingly improved hardness, heat resistance, toughness and transparency as compared with the conventional polyolefin based powder coatings.
    Type: Grant
    Filed: August 12, 1981
    Date of Patent: September 13, 1983
    Assignee: Takeda Chemical Industries
    Inventors: Jugo Goto, Kazutaka Mochizuki, Tsutomu Kubota, Reiji Miyamoto
  • Powder coating comprising blocked isocyanate
    Patent number: 4247666
    Abstract: Substantially pure crystals of .epsilon.-caprolactam-diblocked .omega.,.omega.'-diisocyanato-1,3-dimethylbenzene melting at 110.degree. C. or higher are advantageously used as a hardener of powder coating composition.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: January 27, 1981
    Assignee: Takeda Chemical Industries, Ltd.
    Inventor: Kazutaka Mochizuki
  • Blocked isocyanate
    Patent number: 4171305
    Abstract: Substantially pure crystals of .epsilon.-caprolactam-diblocked .omega.,.omega.'-diisocyanato-1,3-dimethylbenzene melting at 110.degree. C. or higher are advantageously used as a hardener of powder coating composition.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: October 16, 1979
    Assignee: Takeda Chemical Industries, Ltd.
    Inventor: Kazutaka Mochizuki