Patents Represented by Attorney Norwood Cheairs

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  • Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation
    Patent number: 5739220
    Abstract: An olefin polymerization process in which at least two introductions of hydrogen are made during the olefin polymerization reaction. Suitable catalysts include metallocenes of the general formula (Cp).sub.m TiX.sub.n, wherein Cp is a substituted or unsubstituted cyclopentadienyl ring, X is a halogen, m=1-2, n=2-3, and wherein m+n=4, and conventional Ziegler-Natta catalysts blended with or modified by such metallocenes.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: April 14, 1998
    Assignee: Fina Technology, Inc.
    Inventors: Edwar S. Shamshoum, David J. Rauscher