Patents by Inventor Michael Christopher Phillips

Michael Christopher Phillips 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).

  • Bitumen compositions and a process for their preparation
    Patent number: 6060542
    Abstract: The invention provides a process for preparing a bitumen composition comprising blowing a mixture with an oxygen-containing gas which mixture comprises a bitumen having a penetration of less than 300 dmm (as measured by ASTM D 5 at 25.degree. C.), a thermoplastic rubber which is present in an amount of less than 10% w, and a bitumen blowing catalyst which is present in an amount of more than 0.5% w and up to 3% w, both based on total mixture; and bitumen compositions obtainable by such process.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: May 9, 2000
    Assignee: Shell Oil Company
    Inventors: Gerrit Van Gooswilligen, Michael Christopher Phillips, Koen Steernberg
  • Bitumen compositions and a process for their preparation
    Patent number: 5939474
    Abstract: The invention provides a process for preparing a bitumen composition comprising blowing a mixture with an oxygen-containing gas which mixture comprises a bitumen having a penetration of at least 300 dmm (as measured by ASTM D 5 at 25.degree. C.), a thermoplastic rubber which is present in an amount of less than 10% w, and a bitumen blowing catalyst which is present in an amount in the range of from 1 to 3% w, both based on total mixture; and bitumen compositions obtainable by such process.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: August 17, 1999
    Assignee: Shell Oil Company
    Inventors: Gerrit Van Gooswilligen, Michael Christopher Phillips, Koen Steernberg