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:
Jul. 19, 1988
Filed:
Mar. 18, 1986
Betsy J Butke, Mentor, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A phosphorus free or a low phosphorus containing lubricant composition is provided by formulating the composition with an additive of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkyl of 1 to about 7 carbons, aryl, aralkyl or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; X is O or S; a is 1 or 2; R.sub.3 and R.sub.4 are independently H, alkyl or aryl; and Z is ##STR2## wherein R.sub.5 is hydrogen, alkyl, or aralkyl, and ##STR3## wherein Y is H, OH, R.sub.6 where R.sub.6 is alkyl, aryl or aralkyl, OR.sub.6, OR.sub.7 --OH, where R.sub.7 is alkylene of 1 to about 7 carbon atoms, and NR.sub.8 R.sub.9 where R.sub.8 and R.sub.9 are independently hydrogen, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when a is 1, Y is not OR.sub.6. These additives impart improved extreme pressure and anti-wear properties to lubricant compositions.