Patents by Inventor Hugues Hornain

Hugues Hornain has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hydraulic binder resulting from mixing a sulfate binder and a binder comprising the mineral compound C4A3{overscore (S)}
    Patent number: 6730162
    Abstract: The present invention relates to a method of preparing a hydraulic binder wherein at least the following two binders are mixed together: a) a first hydraulic binder having as one of its main components the mineral compound C4A3{overscore (S)}; and b) a sulfate second binder based on calcium sulfate hemihydrate and/or anhydrite obtained by applying heat treatment to gypsum. The present invention also provides a binder comprising amongst its main components: a) a mineral compound C4A3{overscore (S)}; and b) a compound comprising a hemihydrate of calcium sulfate of &agr; or &bgr; form and of general formula CaSO4, ½H2O and/or an anhydrite of III form of general formula CaSO4, &egr;H2O with &egr; lying in the range 0 to 0.5, preferably in the range 0.06 to 0.11, or an anhydrite of II form of formula CaSO4.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: May 4, 2004
    Inventors: Guanshu Li, Hugues Hornain, Jean Couturier