Patents Assigned to H20 Barrier Technologies LLC
  • Method to render surfaces water repellent
    Patent number: 8221533
    Abstract: A method to render stone, ceramic, or cementitious structures water repellent is disclosed. The method includes the step of contacting the stone, ceramic, or cementitious structures with an alkylphosphonic acid. The alkylphosphonic acid can be dispersed in an aqueous medium and can be at least partially neutralized with ammonia, an amine, or a basic alkali salt.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: July 17, 2012
    Assignee: H20 Barrier Technologies LLC
    Inventors: Mark Rule, Harry Harshaw