Patents by Inventor Peter L. Barlow

Peter L. Barlow 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 manufacture of a cutback of a mixture of bitumen and rubber
    Patent number: 4503176
    Abstract: A cutback of a mixture of bitumen and rubber is prepared by treating a mixture of bitumen and rubber with a peroxide at 100.degree.-240.degree. C. and adding a volatile solvent. The obtained cutback can easily be sprayed on roads and shows a good retention for chippings.
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: March 5, 1985
    Assignee: Shell Oil Company
    Inventors: Peter L. Barlow, Kenneth M. Riches
  • Preformed membrane
    Patent number: 4464427
    Abstract: A preformed membrane, suitable for road surfacing, comprises a layer of a mixture of bitumen, a linear monoalkenyl arene/conjugated diene block copolymer and a branched monoalkenyl arene/conjugated diene block copolymer.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: August 7, 1984
    Assignee: Shell Oil Company
    Inventor: Peter L. Barlow