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:
Sep. 20, 1994
Filed:
Feb. 04, 1993
Applicant:
Inventors:
Randolph A McDonald, Berea, OH (US);
Gerald D Burt, Moreland Hills, OH (US);
Assignee:
The Elco Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C07F / ;
U.S. Cl.
CPC ...
252 325 ; 252 499 ; 252 498 ; 252 50 ; 252 51 ; 252 / ; 558 81 ; 558108 ; 558170 ;
Abstract
Lubricant additives are disclosed which are produced by reacting an alkanolamine, a carboxylic acid and phosphorous acid. The reaction product may also include a boron compound and/or a monofunctional alcohol. The additives are useful in combination with metalworking oils, particularly in extreme pressure applications, to replace currently used chlorinated paraffin additives.