Patents by Inventor Shouzi Takamizawa

Shouzi Takamizawa 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).

  • Resinous composition
    Patent number: 4224430
    Abstract: A resinous composition comprising(1) 40-90 parts by weight of one or more oligomers obtained by reacting a polyhydric alcohol or its derivative with a monobasic acid of the formula, ##STR1## wherein X is an .alpha.,.beta.-unsaturated hydrocarbon group having 2 or 3 carbon atoms, and(2) 10-60 parts by weight of one or more polymerizable monomers having at least one polymerizable double bond in the molecule, has high solid content and gives molded articles excellent in water resistance, chemical resistance and hardness rise in addition to excellent properties of conventional unsaturated polyester resins.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: September 23, 1980
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Iwao Maekawa, Isao Uchigasaki, Shouzi Takamizawa, Akira Kageyama