Patents by Inventor Yoshihiro Kusumoto

Yoshihiro Kusumoto 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 producing a chloromethylated polymer
    Patent number: 4636554
    Abstract: A process for producing a chloromethylated polymer by reacting styrene polymer particles with chloromethyl methyl ether in the presence of a catalyst, characterized in that hydrogen chloride is added to the reaction product mixture, followed by distillation to recover a distillate mixture containing chloromethyl methyl ether.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: January 13, 1987
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Akira Tada, Takamitsu Morita, Takeshi Teraue, Yoshihiro Kusumoto