Patents Assigned to Vinzoyl Petroleum Co.
  • Asphalt compositions with improved cross-linking agent
    Patent number: 5496400
    Abstract: An improved, substantially anhydrous, cross-linking agent is disclosed for use in asphalt compositions of the type used for roofing and paving materials. The cross-linking agent comprises a blend of tall oil, a strong base, an anhydrous organic solvent, and fatty amines and is substantially free of water.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: March 5, 1996
    Assignee: Vinzoyl Petroleum Co.
    Inventors: Michael P. Doyle, Jimmy L. Stevens
  • Asphalt compositions with improved cross-linking agent
    Patent number: 5437717
    Abstract: An improved, substantially anhydrous, cross-linking agent is disclosed for use in asphalt compositions of the type used for roofing and paving materials. The cross-linking agent comprises a blend of tall oil, a strong base, n-methyl fatty acid taurate, and fatty amines and is substantially free of water.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: August 1, 1995
    Assignee: Vinzoyl Petroleum Co.
    Inventors: Michael P. Doyle, Jimmy L. Stevens