Patents by Inventor Naomi Inabe

Naomi Inabe 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).

  • Catalyst component for use in the polymerization of .alpha.-olefins and a method of using the same
    Patent number: 4242231
    Abstract: A supported titanium catalyst is produced by cogrinding, in combination, a magnesium halide, tetravalent titanium halide, organic acid ester, and an organic halogen compound. The resulting supported titanium catalyst, when employed as a titanium component with an organo aluminum catalyst component for the catalyst system in a process for stereoregular polymerization of .alpha.-olefins, produces high polymerization activity and unexpectedly high stereoregular polymer yielding ratios.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: December 30, 1980
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ueno, Masafumi Imai, Naomi Inabe, Makoto Yoda, Shozo Wada