Patents by Inventor Satoshi Ueki

Satoshi Ueki 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 a catalyst component for polymerization of olefins
    Patent number: 4678767
    Abstract: A process for producing a catalyst component for polymerization of olefins which comprises contacting (a) a metal oxide with (b) an organomagnesium compound represented by the formula RMgR' wherein R denotes a hydrocarbyl group and R' denotes a hydrocarbyl group or a halogen atom, contacting the resulting contacting product with (c) carbon dioxide, and further contacting the resulting contact product with (d) a titanium compound. Optionally, the carbon dioxide contacted product can be treated with the halogen-containing compound prior to contact with the titanium compound.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: July 7, 1987
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Mamoru Tachikawa, Satoshi Ueki, Masato Sakuma, Chihiro Imai, Tokuo Makishima
  • Catalyst component for polymerization of olefins
    Patent number: 4647550
    Abstract: A catalyst component for the polymerization of olefins which is prepared by contacting a contact reaction product of (a) a metal oxide, (b) an organic magnesium compound, and (c) an alkoxy group-containing compound held in contact with (d) a titanium compound.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: March 3, 1987
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Tadanao Kohora, Satoshi Ueki, Mamoru Tachikawa, Chihiro Imai, Tokuo Makishima, deceased