Patents Represented by Attorney Gerald A. Barabcka

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  • Solid state modification of propylene polymers
    Patent number: 7750086
    Abstract: A process for improving the melt characteristics of propylene-ethylene random block and impact copolymers is provided. The process involves contacting a powder of the copolymer with a low level of free radical initiator followed by heating at a temperature below the melting point of the copolymer and above the free radical initiation temperature.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: July 6, 2010
    Assignee: Equistar Chemicals, LP
    Inventors: Andrew J. Scheie, Manivakkam J. Shankernarayanan