Patents Assigned to Cer-Con, Inc.
  • Patent number: 5275655
    Abstract: These and other objects are satisfied by the present invention, which as a first aspect provides a cementitious composition with non-stick properties. The composition comprises a calcium aluminate cement matrix, a mineral filler, a polymer binding agent, and a fluoropolymer. The composition may optionally include other components which enhance certain mechanical, chemical, or processing characteristics of the composition, such as hardeners, defoamers, lubricants, accelerators, reaction inhibitors, suspension agents, and heat transfer enhancers.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: January 4, 1994
    Assignee: Cer-Con, Inc.
    Inventors: Klaus F. Grunau, William W. Hamilton
  • Patent number: 5269845
    Abstract: A novel cementitious composition based on calcium aluminate and suitable for use in molds is provided. The composition comprises a calcium aluminate powder base, at least one particulate inorganic filler, a latex binding agent chemically compatible with said calcium aluminate powder, at least one dispersing agent, an initiator which initiates the binding of said calcium aluminate powder to said inorganic filler at pH values between 6.5 and 8.0, at least one surface hardness agent comprising an alkyl-aryl sulfonate compound or salt thereof or an aryl sulfonate compound or salt thereof, a polymer salt surface gloss agent, and at least one metal or non-metal oxide wetting agent. A process for producing the composition and a process of applying the composition to form it into a desired shape are also provided.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: December 14, 1993
    Assignee: Cer-Con, Inc.
    Inventors: Klaus F. Grunau, William W. Hamilton