Patents by Inventor Cesar Alvarez Ortiz

Cesar Alvarez Ortiz 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).

  • Production of bituminous emulsion and liquid amine emulsifier therefor
    Patent number: 6013681
    Abstract: A liquid amine compound which can be applied to various uses such as emulsification for bitumens since it has as high surface activity as those of solid amines and is more excellent in workability as compared with the solid amines, and an emulsifier for bitumens produced by using the amine compound. Furthermore, a process for producing an emulsifier a bituminous emulsion by reacting an aliphatic amine having at least one hydrocarbon group having not less than 8 carbon atoms with a carbonyl compound and adding an acid thereto to adjust the pH of the amine compound so as to be not more than 5, and a process for producing a bituminous emulsion composition by using the amine compound.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: January 11, 2000
    Assignee: Kao Corporation
    Inventors: Katsuhiko Asamori, Ryoichi Tamaki, Hitoshi Funada, Takao Taniguchi, Francisco Castaneda Juarez, Cesar Alvarez Ortiz, Alvaro Gutierrez Muniz, Humberto Ramirez Hernandez