Patents by Inventor Teruo Shibuya

Teruo Shibuya 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).

  • Tar-urethane composition
    Patent number: 4018739
    Abstract: A tar-urethane composition comprising (1) an isocyanate-reactive tar obtained by reacting a tar produced as a by-product in the phenol synthesis via hydroperoxides with a formaldehyde in the presence of a basic catalyst and in the presence or absence of at least one phenol compound and (2) a polyisocyanate, which is useful as coating agents, materials for pavement, floor linings, sealing materials and the like.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: April 19, 1977
    Assignees: Sumitomo Chemical Company, Limited, Nittetsu Chemical Industrial Co., Ltd.
    Inventors: Masahiro Okamoto, Morio Kimura, Teruo Shibuya, Shinji Yamamoto, Shinichi Hasegawa, Yutaka Terada, Teruho Adachi