Patents by Inventor Takeo Matuo

Takeo Matuo 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).

  • Process for the preparation of unsaturated polyurethane resins
    Patent number: 3966681
    Abstract: A process for preparing an unsaturated polyurethane resin containing two or more unsaturated monobasic acid residues in its molecular structure which comprises reacting, in the presence of a polymerizable vinyl monomer, (A) a diesterified product of an epoxy compound containing a hydroxyl group, said product obtained by reacting an epoxy compound having two epoxy groups in its molecular structure but not containing a hydroxyl group with unsaturated monobasic acid, with (B) a diisocyanate compound in the presence or absence of (C) oligopolyester glycol containing a saturated or unsaturated dibasic acid group, at the rate of 0.2 to 1.0 mole of the isocyanate group per each mole of said hydroxyl group.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: June 29, 1976
    Assignee: Dainippon Ink and Chemicals, Incorporated
    Inventors: Hiroshi Maeda, Nagao Ariga, Takeo Matuo