Patents by Inventor Syuichi Moriizumi

Syuichi Moriizumi 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 preparing open-cell structure of vinyl chloride resin
    Patent number: 4430136
    Abstract: A process for preparing an open-cell structure from a vinyl chloride resin. The process includes mixing a vinyl chloride resin, stabilizer, plasticizer, surface active agent, azodicarbonamide and 4,4'-oxybisbenzenesulfonyl hydrazide to form a vinyl chloride resin paste. The vinyl chloride resin paste of step (a) is rendered alkaline, and mixed to form a uniformly-mixed paste. The paste is permitted to expand, and then heated to cause gelation.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: February 7, 1984
    Assignee: Lonseal Corporation
    Inventors: Toshio Tsuchiya, Syuichi Moriizumi, Hisashi Takeda, Akinori Arai