Patents by Inventor Takashi Mizui

Takashi Mizui 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).

  • Isocyanuric acid adduct of 2-vinyl-4,6-diamino-S-triazine, process for synthesis of said adduct and process for hardening polyepoxy resin with said adduct
    Patent number: 4614774
    Abstract: Disclosed is an isocyanuric acid adduct of 2-vinyl-4,6-diamino-S-triazine represented by the following structural formula: ##STR1## This adduct is prepared by heating 2-vinyl-4,6-diamino-S-triazine and isocyanuric acid in the presence of water, preferably by using sodium sulfide as a polymerization inhibitor. This adduct is valuable as a hardening agent for an epoxy resin.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: September 30, 1986
    Assignee: Shikoku Chemicals Corporation
    Inventors: Natsuo Sawa, Takeshi Masuda, Takashi Mizui
  • Epoxy resin composition
    Patent number: 4593069
    Abstract: An epoxy resin composition comprising an epoxy resin, either 2-vinyl-4,6-diamino-s-triazine or 2-vinyl-4,6-diamino-s-triazine/isocyanuric acid adduct, and at least one compound selected from dicyandiamide, polyvinyl-p-phenol and specific imidazole compounds. The composition is useful, for example, in inks, insulating paints and adhesives for printed circuit base boards and in copper-clad laminated boards.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: June 3, 1986
    Assignees: Shikoku Chemicals Corp., Shikoku Finechemicals Corp.
    Inventors: Kazuo Kamagata, Toshiaki Yamada, Shunichi Kawata, Takashi Mizui
  • Isocyanuric acid adduct of 2-vinyl-4,6-diamino-S-triazine
    Patent number: 4567259
    Abstract: Disclosed is an isocyanuric acid adduct of 2-vinyl-4,6-diamino-S-triazine represented by the following structural formula: ##STR1## This adduct is prepared by heating 2-vinyl-4,6-diamino-S-triazine and isocyanuric acid in the presence of water, preferably by using sodium sulfide as a polymerization inhibitor. This adduct is valuable as a hardening agent for an epoxy resin.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: January 28, 1986
    Assignee: Shikoku Chemicals Corp.
    Inventors: Natsuo Sawa, Takeshi Masuda, Takashi Mizui