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:
Jan. 06, 1981
Filed:
Aug. 08, 1978
Applicant:
Inventors:
James E Knepp, Pittsburgh, PA (US);
William G Johnston, Pittsburgh, PA (US);
Myron J Jursich, Chicago, IL (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 493 ; 2525 / ;
Abstract
A synthetic metal working lubricant characterized by an absence of mineral oil and dispersible in water comprises an alkanolamine such as triethanolamine, a 12 to 18 carbon aliphatic acid, such as oleic acid, and a water-dispersible or miscible polyoxyalkylene alcohol. The lubricant may optionally also contain an aliphatic carboxylic acid ester or diester. The resulting lubricant can be disposed of in accordance with existing EPA regulations on amounts of effluent extractable with hexane in comparison with prior art mineral oil based lubricants.