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:
Nov. 14, 1989
Filed:
Apr. 21, 1988
Applicant:
Inventors:
Patrice Guesnet, Pau, FR;
Tetsuchi Kawamura, Tokyo, JP;
Gerard Savin, Serre-Castet, FR;
Sabine Poncet, Pau, FR;
Charles Castera, Sainte-Suzanne, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 34 ; 252 39 ; 252 41 ; 252 486 ; 252 493 ; 252 495 ; 568 22 ; 72 42 ;
Abstract
This invention relates to the use of water-soluble 3-mercaptopropionic acid disulphide salts as extreme pressure additives for aqueous functional fluids. These salts may be prepared by the oxidation of 3-mercaptopropionic acid followed by bringing the disulphide obtained into contact with an organic or inorganic base. Functional fluids are used during industrial operations such as, for example, the machining of metals.
Guesnet, Patrice. (1989). Water-soluble additives having extreme pressure effect for aqueous (U.S. Patent No. 4880552). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4880552
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile