Patents by Inventor Ludovic Neel

Ludovic Neel 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).

  • Inorganic resins, process for their preparation and materials for heat protection
    Patent number: 5532196
    Abstract: The invention relates to new curable inorganic resins based on alkali metal boroaluminosilicates, which, before curing, include inorganic elements in the reactive state, in the following proportions, expressed as their molar ratio of oxides:2.ltoreq.SiO.sub.2 /Al.sub.2 O.sub.3 .ltoreq.41.3.ltoreq.X.sub.2 O/Al.sub.2 O.sub.3 .ltoreq.3.810.ltoreq.H.sub.2 O/Al.sub.2 O.sub.3 .ltoreq.280.5<B.sub.2 O.sub.3 /Al.sub.2 O.sub.3 .ltoreq.2.0X.sub.2 O denoting one or more alkali metal oxides chosen from Na.sub.2 O, K.sub.2 O, Li.sub.2 O, and optionally fillers.The invention also relates to the process for the preparation of these new inorganic resins.The cured resins obtained are very useful for manufacturing heat protection materials.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: July 2, 1996
    Assignee: Societe National Des Poudres et Explosifs
    Inventors: Claude L'Hernault, Ludovic Neel