Patents by Inventor Dave Syme

Dave Syme 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 the preparation of isoolefin polymers with controlled free-radical curability
    Patent number: 6844411
    Abstract: The present invention is relates to a process for the preparation of an isoolefin polymer containing repeating units derived from at least one isoolefin, at least one divinyl aromatic monomer and, optionally, additional copolymerizable monomers, wherein the content of unreacted vinyl groups from the aromatic monomer is predicted by means of FTIR measurements. The present invention is related to a process for the preparation of an isoolefin polymer comprising repeating units derived from at least one isoolefin, at least one divinyl aromatic monomer and, optionally, further copolymerizable monomers, wherein the content of unreacted vinyl groups from the aromatic monomer is predicted by means of FTIR measurements and said prediction is subsequently used to alter at least one process parameter.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: January 18, 2005
    Assignee: Bayer Inc.
    Inventors: Dave Syme, Adam Gronowski, Gabor Kaszas, Kenneth Norman Watson
  • Process for the preparation of isoolefin polymers with controlled free-radical curability
    Publication number: 20040132944
    Abstract: The present invention is relates to a process for the preparation of an isoolefin polymer containing repeating units derived from at least one isoolefin, at least one divinyl aromatic monomer and, optionally, additional copolymerizable monomers, wherein the content of unreacted vinyl groups from the aromatic monomer is predicted by means of FTIR measurements.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 8, 2004
    Inventors: Dave Syme, Adam Gronowski, Gabor Kaszas, Kenneth Norman Watson