Patents by Inventor Clement Robert

Clement Robert 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).

  • Admixtures for mineral binders based on hydrogenated disaccharide, admixture-containing mineral binders, and a process for the preparation thereof
    Patent number: 6648964
    Abstract: A novel admixture for mineral binders is composed of a polyol composition with a high hydrogenated disaccharide content (≧40%). The hydrogenated disaccharide is advantageously chosen from maltitol, lactitol and mixtures thereof. Within the admixture, the polyol composition (for example, maltitol powder, a maltitol syrup or a hydrogenated starch hydrolysate) may be combined with conventional admixtures for mineral binders, particularly lignosulfonates. The hydrogenated disaccharides make it possible to obtain an excellent compromise between retardation, plasticity and the mechanical properties of the mineral binder. They may be used equally well for admixing with cements and raw materials for cements as for admixing with mortars, slurries and concretes.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: November 18, 2003
    Assignee: Roquette Freres
    Inventors: Leon Mentink, Jean-Pierre Graux, Clement Robert
  • Admixtures for mineral binders based on hydrogenated disaccharide, admixture-containing mineral binders, and a process for the preparation thereof
    Publication number: 20010029872
    Abstract: A novel admixture for mineral binders is composed of a polyol composition with a high hydrogenated disaccharide content (≧40%). The hydrogenated disaccharide is advantageously chosen from maltitol, lactitol and mixtures thereof. Within the admixture, the polyol composition (for example, maltitol powder, a maltitol syrup or a hydrogenated starch hydrolysate) may be combined with conventional admixtures for mineral binders, particularly lignosulfonates. The hydrogenated disaccharides make it possible to obtain an excellent compromise between retardation, plasticity and the mechanical properties of the mineral binder. They may be used equally well for admixing with cements and raw materials for cements as for admixing with mortars, slurries and concretes.
    Type: Application
    Filed: May 3, 2001
    Publication date: October 18, 2001
    Inventors: Leon Mentink, Jean-Pierre Graux, Clement Robert
  • Plaster composition containing an amylaceous compound
    Patent number: 5932001
    Abstract: The present invention relates to a new plaster, coating or adhesive composition based on plaster, containing an amylaceous compound. The amylaceous compound used according to the invention consists of a cationic amylaceous compound having, characteristically, a fixed nitrogen content at least equal to about 0.15% and a solubility in water at least equal to about 50%.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: August 3, 1999
    Assignee: Roquette Freres
    Inventors: Jean-Pierre Graux, Clement Robert