Coupled phosphorus-containing amides, precursors thereof and lubricant compositions containing same

US4670169A · kind A · utility

Assignee

• The Lubrizol Corporation · US

Inventors

• Paul E. Adams · Willoughby Hills, US
• Carmen V. Luciani · Wickliffe, US

Key dates

• Filing date: Apr 18, 1986
• Grant date: Jun 2, 1987
• Expiry date: Apr 18, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/50
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A load-carrying agent and a lubricating composition containing such an agent is disclosed. The agent is preferably comprised of a statistical mixture of a plurality of different coupled phosphorus-containing amide compounds having the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3, independently, is O or S; wherein R.sup.1 and R.sup.2, independently, is a hydrocarbyl, a hydrocarbyl-based oxy, the hydrocarbyl portion of which contains 6 to 22 carbon atoms, or a hydrocarbyl-based thio having from 4 to about 34 carbon atoms; wherein R.sup.3, R.sup.4, R.sup.5 and R.sup.6, independently, is hydrogen, or an alkyl having from 1 to about 22 carbon atoms, a cycloalkyl having from about 4 to about 22 carbon atoms, or an aromatic, an alkyl-substituted aromatic or an aromatic-substituted alkyl having from 6 to about 34 carbon atoms; wherein n is 0 or 1; wherein n' is 1, 2 or 3; wherein R.sup.7 is hydrogen or an alkyl having from 1 to 22 carbon atoms; and wherein when n' is 1, R.sup.8 is selected from the group consisting of H, --ROH, --ROR, --RSR and ##STR2## and when n' is 2, R.sup.8 is selected from the group consisting of ##STR3## --R-- and --R'-- when n' is 3, R.sup.8 is ##STR4## wh…