Patents Represented by Attorney James A. Cairnes

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  • Alpha-olefin polymers
    Patent number: 5210362
    Abstract: This invention deals with viscosity improvers which are obtained through the use of a mixed catalyst system comprising a primary and/or secondary organo halide and a Lewis acid catalyst.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: May 11, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Roger L. Sowerby, Curtis R. Scharf