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:
Aug. 21, 1990
Filed:
Nov. 17, 1989
Applicant:
Inventor:
John T Malito, Oswego, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 493 ; 72 42 ;
Abstract
Metal working lubricant compositions are provided in which a dry film of a lubricant is formed on the metal being worked. The lubricant comprises an ester having a melting point of at least 100.degree. F. and a solid surfactant having an HLB number in the range of about 7-12. The surfactant is solid at room temperature and will cause the lubricant to disperse in water at a temperature exceeding the lubricant's melting point. Consequently, the solid surfactant incorporated in the dry film lubricant allows lubricant removal by washing of the metal with just hot water. The invention also provides for metal working methods in which the lubricants are used.