Patents Represented by Attorney Yunazhang Han

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  • Monomer concentration prediction and control in a polymerization process
    Patent number: 7786227
    Abstract: A method for the control of a polymerization process, which method employs the combination of a densitometer measurement of the polymerization reaction mixture and a quadratic computer model.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: August 31, 2010
    Assignee: Equistar Chemicals, LP
    Inventors: Alberto Buchelli, Steven P. Haynie, Bruce A. Wicker, Jr.