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:
Oct. 22, 1991
Filed:
Feb. 08, 1989
Syed Q Rizvi, Painesville, OH (US);
Stephen A Di Biase, Euclid, OH (US);
Joseph W Pialet, Euclid, OH (US);
Frederick W Koch, Willoughby Hills, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
This invention relates to lubricating compositions containing hydroxyalkane phosphonic acids and derivatives thereof. Hydroxyalkane phosponic acids in the present invention can be reacted to form salts with basic materials, including detergents, dispersants and amines. These materials can be particularly useful in lubricating compositions to improve anti-wear and extreme pressure properties of lubricating formulations. The hydroxyalkane phosphonic acid is represented by the following formula: ##STR1## wherein Y is a phosphonic acid group or hydrogen, and R is alkyl from 1 to about 100 carbon atoms.