Patents Represented by Attorney E. K. Batts

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  • Silicon-bridged transition metal compounds
    Patent number: 5314973
    Abstract: Silicon-bridged transition metal compounds and their use as .alpha.-olefin polymerization catalysts are disclosed. A chiral silicon-bridged metallocene catalyst polymerizes .alpha.-olefins to high isotacity with a minimum of inversions at high rates of catalyst activity. The catalyst is easily made in high yields and readily separated from atactic meso forms.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: May 24, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Howard C. Welborn, Jr.