Patents by Inventor Edouard Manuel Mathieu

Edouard Manuel Mathieu 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).

  • Overbased carboxlates
    Patent number: 5830832
    Abstract: High basicity calcium carboxylates useful as lubricant and fuel additives and in paints are obtained by carbonating a mixture of a C.sub.7 to C1.sub.5 carboxylic preferably branched chain oxo-acid and excess calcium at from 15.degree. to 60.degree. C. in the presence of a volatile solvent. Products with a basicity of from 4 to 8 may be obtained.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: November 3, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Rainer Benda, Edouard Manuel Mathieu, Olivier Letailleur