Patents Assigned to Isolatek International
  • Cement composition
    Patent number: 6475275
    Abstract: A cement composition contains 35-85% by weight of a cement, 3-15% by weight of a clay, 1-50% by weight of an aggregate and/or a fibrous material, and 0.2-5% by weight of a high efficiency retarder. A benefit of the present invention is that equipment used to apply cement compositions need not be cleaned every night when used on a construction site.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: November 5, 2002
    Assignee: Isolatek International
    Inventors: Edward Nebesnak, Robert Ostertog