Patents by Inventor Frank T. Kiff

Frank T. Kiff 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).

  • Transition metal composition
    Patent number: 4892852
    Abstract: A transition metal composition is obtained by reacting the magnesium salt of a cycloalkyl carboxylic acid with a transition metal compound, and optionally a Lewis Base compound. The product may be used to produce an olefin polymerization catalyst by addition of for example an aluminium trialkyl and the resulting catalyst has a high activity and stereospecificity in an olefin polymerization process.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: January 9, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Roy J. Sampson, John W. Kelland, Frank T. Kiff