Patents by Inventor Tadamasa Yoshida

Tadamasa Yoshida 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).

  • Adhesive comprising post-chlorinated polyethylene and polyvinyl chloride
    Patent number: 4089726
    Abstract: An adhesive composition particularly suitable for adhering polyvinyl chloride and an olefinic polymer comprising 1 to 99% by weight of post-chlorinated polyethylene having a mean molecular weight of about 20,000 to 200,000, a specific gravity of 1.00 to 1.35 and a chlorine content of 5 to 50% by weight and 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of about 300 to 2,500.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: May 16, 1978
    Assignee: Sumitomo Bakelite Company, Limited
    Inventors: Ko Ishii, Tadamasa Yoshida
  • Adhesive comprising post-chlorinated polyethylene and polyvinyl chloride
    Patent number: 4037020
    Abstract: An adhesive composition particularly suitable for adhering polyvinyl chloride and an olefinic polymer comprising 1 to 99% by weight of post-chlorinated polyethylene having a mean molecular weight of about 20,000 to 200,000, a specific gravity of 1.00 to 1.35 and a chlorine content of 5 to 50% by weight and 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of about 300 to 2,500.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: July 19, 1977
    Assignee: Sumitomo Bakelite Company, Limited
    Inventors: Ko Ishii, Tadamasa Yoshida
  • Adhesive comprising post-chlorinated polyethylene and polyvinyl chloride
    Patent number: 4029850
    Abstract: An adhesive composition particularly suitable for adhering polyvinyl chloride and an olefinic polymer comprising 1 to 99% by weight of post-chlorinated polyethylene having a mean molecular weight of about 20,000 to 200,000, a specific gravity of 1.00 to 1.35 and a chlorine content of 5 to 50% by weight and 99 to 1% by weight of polyvinyl chloride having a mean degree of polymerization of about 300 to 2,500.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: June 14, 1977
    Assignee: Sumitomo Bakelite Company, Limited
    Inventors: Ko Ishii, Tadamasa Yoshida