Patents by Inventor Rene L. A. Brouard

Rene L. A. Brouard 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).

  • Cation-active compositions and their application to bituminous emulsions
    Patent number: 5098604
    Abstract: New cation-active amine compositions, liquid at ambient temperature, which do not form concretions by prolonged maintenance at temperatures in the region of 0.degree. C., nor by exposure to the open air, and which do not contain solvents, comprising from 20 to 80% branched-chain alkyletheramines and 80 to 20% oxyalkylated alkylpolyamines. Application of their acid liquid solutions as emulsifying phases of road bitumen, and improved manufacturing process for road bitumen emulsions.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: March 24, 1992
    Assignee: Ceca, S.A.
    Inventors: Rene L. A. Brouard, Luc E. A. Navascues