Patents Assigned to A.P.I. Asphalt Prilling Inc.
  • Encapsulation of asphalt prills
    Patent number: 5637350
    Abstract: An encapsulated asphalt prill having an impervious, water-insoluble shell, and a process for making same are disclosed. The encapsulating material are preferably composed primarily of materials such as molten fatty acids, low melt polymers, waxes, elastomers (synthetic rubbers) or plastomers many of which are also used as blending agents to enhance the final use properties of the commercial asphalt end products.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: June 10, 1997
    Assignee: A.P.I. Asphalt Prilling Inc.
    Inventor: Eugene A. Ross