Patents by Inventor Irena B. Petsche

Irena B. Petsche 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 alpha-olefin polymers
    Patent number: 4634752
    Abstract: Alpha-olefin polymerization catalysts are prepared by heating a solid porous carrier having reactive OH groups in the atmosphere of an oxygen-containing gas. The resulting catalysts exhibit higher productivity and produce ethylene polymers or ethylene/C.sub.3 -C.sub.10 copolymers having higher bulk density than similar catalysts prepared with the carriers heated in an atmosphere of nitrogen.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: January 6, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Robert O. Hagerty, Irena B. Petsche, Kenneth G. Schurzky
  • Alpha-olefins polymerization catalyst of high productivity
    Patent number: 4562169
    Abstract: Alpha-olefin polymerization catalysts are prepared by heating a solid porous carrier having reactive OH groups in the atmosphere of an oxygen-containing gas. The resulting catalysts exhibit higher productivity and produce ethylene polymers of ethylene/C.sub.3 -C.sub.10 copolymers having higher bulk density than similar catalysts prepared with the carriers heated in an atmosphere of nitrogen.
    Type: Grant
    Filed: October 4, 1984
    Date of Patent: December 31, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Robert O. Hagerty, Irena B. Petsche, Kenneth G. Schurzky