Patents by Inventor Okawa Kazunori

Okawa Kazunori 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).

  • Olefin polymerization catalyst and olefin polymerization
    Patent number: 5296565
    Abstract: A solid catalyst for olefin polymerization comprising[A] a particulate carrier composed of (i) an oxide of at least one element selected from among those belonging to the groups of II, III and IV of the periodic table, and containing (ii) at least 1.0 % by weight of water,[B] an organoaluminum oxy compound, and[C] a transition metal compound of a metal belonging to the group IV B of the periodic table containing a ligand having a cyclopentadienyl skeleton,wherein the organoaluminum oxy compound [B] and the transition metal compound [C] are supported on the particulate carrier [A].
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: March 22, 1994
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Takashi Ueda, Okawa Kazunori