The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2010
Filed:
Nov. 08, 2002
Applicants:
Gilles Darvaux-hubert, Franconville, FR;
Fabrice Domingues Dos Santos, Lyons, FR;
François Guillemet, Paris, FR;
Inventors:
Gilles Darvaux-Hubert, Franconville, FR;
Fabrice Domingues Dos Santos, Lyons, FR;
François Guillemet, Paris, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 17/00 (2006.01); B21B 45/02 (2006.01); C10M 159/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for working or forming metals which consists in usings an aqueous lubricant containing as water-soluble extreme pressure additive, methanesulphonic acid or water-soluble methanesulphonic acid salt. The water-soluble methane sulphonic acid salt is an alkali or alkaline-earth, ammonium, alkanol amine or ethoxylated fatty amine salt. The inventive aqueous lubricants have good extreme pressure properties and good properties with respect to corrosion.