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:
Mar. 20, 2001
Filed:
Jan. 28, 1999
James G. MacNeil, New Philadelphia, OH (US);
Barbara A. Wade, Dalton, OH (US);
C. Joseph Fette, New Philadelphia, OH (US);
Dover Chemical Corp., Dover, OH (US);
Abstract
Extreme pressure lubricants, concentrates and greases. Disclosed herein are extreme pressure metal working lubricants which comprise a lubricant base material and a reaction product of (1) an amine containing from 1 to about 30 carbon atoms and (2) sulfamic acid or derivative thereof containing from 1 to about 30 carbon atoms. The reaction product or extreme pressure additive may be either water soluble or oil soluble. Amines containing from 1 to about 7 carbon atoms are generally used for making water soluble reaction products, and amines containing 8 or more (up to about 30) carbon atoms are generally used for making oil soluble reaction products. Water based lubricants comprise water and a water soluble reaction product. Oil based lubricants comprise an oil of lubricating viscosity and an oil soluble reaction product. Reaction products may be either addition products or sulfonamides.