Patents by Inventor Reginald K. Ungar

Reginald K. Ungar 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).

  • Activation of catalyst in ethylene polymerization at high temperatures
    Patent number: 5519098
    Abstract: The present invention relates to a method for activating coordination catalysts suitable for the polymerization of alpha olefins using a alkoxy aluminum alkyl compound prepared by mixing an alcohol and an alkyl aluminum. The activator retains its activity and is easy to prepare simplifying the polymerization process.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: May 21, 1996
    Assignee: Novacor Chemicals (International) SA
    Inventors: Stephen J. Brown, Reginald K. Ungar, Vaclav G. Zboril