Patents by Inventor Olivier Letailleur

Olivier Letailleur 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).

  • Process for the stabilization of alkylbenzenesulphonates
    Patent number: 6087529
    Abstract: To improve color and odor characteristics of sulfonic acids and their derivatives while maintaining sludge and sulfuric acid reduction and good thermal stability, they are treated with at least one unsaturated hydrocarbon, each having at most 36 carbon atoms and having defined substitution characteristics.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: July 11, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Edouard Mathieu, Dominique Moulin, Jean Michel Legac, Olivier Letailleur
  • 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
  • Overbased carboxylates
    Patent number: 5501807
    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 C.sub.15 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: July 12, 1994
    Date of Patent: March 26, 1996
    Inventors: Rainer Benda, Edouard M. Mathieu, Olivier Letailleur