Patents by Inventor Tatsuo Kimoto

Tatsuo Kimoto 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).

  • High activity supported catalytic components and method for homo- or co-polymerization of .alpha.-olefin
    Patent number: 4415713
    Abstract: A high activity supported catalytic component obtained by pulverizing together (a) an anhydrous magnesium halide and (b) a titanium compound in the concomitant presence of 0.1 to 20 wt. % of (c) a liquid aromatic hydrocarbon and/or a liquid aromatic hydrocarbon halide, within the supported catalytic component, at temperature between 0.degree. and 100.degree. C. at which the liquid aromatic hydrocarbon and/or the liquid aromatic hydrocarbon halide remains in a liquid state throughout the whole range of temperature during the pulverization; and a method in which .alpha.-olefin is homo- or co-polymerized in the presence of a catalytic system comprising the high activity supported catalytic component, an organo-aluminum compound and an electron donor.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: November 15, 1983
    Assignee: Toyo Stauffer Chemical Co., Ltd.
    Inventors: Shoichi Tokunaga, Atsumi Kato, Tatsuo Kimoto, Keikichi Baba