Patents by Inventor Andrew B. Donnalley

Andrew B. Donnalley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for polymerizing cationically polymerizable monomers
    Patent number: 6939933
    Abstract: The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of random copolymers of one or more isoolefin monomers and one or more conjugated diene monomers in continuous slurry polymerization processes. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar diluent along with a Lewis acid and a C5 or greater initiator having a tertiary halide.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: September 6, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Robert N. Webb, David Y. Chung, Andrew B. Donnalley, Michael F. McDonald, Kenneth W. Powers, Ralph Howard Schatz
  • Process for polymerizing cationically polymerizable monomers
    Publication number: 20040054103
    Abstract: The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of random copolymers of one or more isoolefin monomers and one or more conjugated diene monomers in continuous slurry polymerization processes. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar diluent along with a Lewis acid and a C5 or greater initiator having a tertiary halide.
    Type: Application
    Filed: June 2, 2003
    Publication date: March 18, 2004
    Inventors: Robert N. Webb, David Y. Chung, Andrew B. Donnalley, Michael E. McDonald, Kenneth W. Powers, Ralph Howard Schatz