Patents by Inventor Michiya Araki

Michiya Araki 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 heat resistant materials
    Patent number: 3962398
    Abstract: A method for producing fibers and films comprising emulsion polymerizing a polyvinyl alcohol derivative having sulfone or sulfate group with a chlorine-containing vinyl monomer, adding the thus formed emulsion to a matrix of polyvinyl alcohol and then coagulating the mixture into a film or fiber. The resulting polymeric compositions are composed of polyvinyl alcohol, the sulfone or sulfate-containing polyvinyl alcohol and the chlorine containing vinyl polymer, in which a part of the chlorine-containing vinyl polymer is grafted onto the polyvinyl alcohol derivative. The emulsions used possess excellent stability and the films and fibers therefrom possess excellent heat resistance.
    Type: Grant
    Filed: August 21, 1974
    Date of Patent: June 8, 1976
    Assignee: Kohjin Co., Ltd.
    Inventors: Kazuto Matsuo, Michiya Araki, Tomoyuki Matsugu, Takahito Mikami