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. 23, 1990
Filed:
Jan. 27, 1988
Applicant:
Inventors:
William T Brannen, Westlake, OH (US);
Gerald D Burt, Moreland Hills, OH (US);
Randolph A McDonald, Berea, OH (US);
Assignee:
Elco Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 325 ; 252 496 ; 252 499 ;
Abstract
Lubricant additives are produced by reacting an alkoxylated amine, preferably a dialkoxy long chain alkyl amine, such as a propoxylated amine, with a disubstituted organic phosphite, preferably a dialkyl (C.sub.8 -C.sub.30) phosphite. The additives preferably also contain a boron moiety which is reacted with the phosphite and amine, preferably simultaneously in a one step reaction. The additives are particularly useful in metalworking oils and particularly as extreme pressure additives to replace the currently used chlorinated paraffin additives.