Multifunctional molybdenum containing compounds, method of making and using, and lubricating oil compositions containing same

Patent metadata

Field	Value
Publication number	US-10227546-B2
Application number	US-201615348070-A
Country	US
Kind code	B2
Filing date	Nov 10, 2016
Priority date	Jun 17, 2015
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

Disclosed is a lubricating oil composition comprising the reaction product of a nitrogen containing reactant wherein the nitrogen containing reactant comprises an alkyl di-alkanolamide, an alkyl di-alkanolamine, or mixtures thereof; an acidic molybdenum compound; and a salicylate compound.
Also disclosed is a method for operating an internal combustion engine comprising said lubricating composition and a method for preparing a molybdenum containing friction modifier.

First claim

What is claimed is:

1. A method for preparing a molybdenum containing friction modifier comprising, forming a aqueous reaction mixture comprising:
(a) a nitrogen containing reactant comprising a compound having the formula (I) and/or formula (III),

wherein each R individually comprises 1 to 30 carbon atoms and Q is a C 1 to C 4 linear or branched alkylene group,
(b) an acidic molybdenum compound; and
(c) a salicylate compound having the formula (V);

wherein R 1 , R 2 , R 3 , and R 4 are each independently selected from the group consisting of: hydrogen atom, C 1 -C 40 alkyl group, carbocyclic group, heterocyclic group, nitro group, alkoxy group, hydroxy group, nitrile group, thiol group, amide group, amino group, keto group, and ester group; R 5 is a hydrogen atom or C 1 -C 18 alkyl group; for a time and temperature sufficient to form said molybdenum containing friction modifier.

2. The method of claim 1 , wherein the reaction temperature to form the molybdenum containing friction modifier is about 70° C. to about 150° C.

3. The method of claim 2 , wherein the ratio of the nitrogen containing reactant to the acidic molybdenum compound to the salicylate compound is from about 1:0.1:0.1 to about 1:2.5:2.5 respectively.

4. The method of claim 2 , wherein the acidic molybdenum compound is selected from the group consisting of molybdic acid, ammonium molybdate, sodium molybdate, potassium molybdates, hydrogen sodium molybdate, MoOCl 4 , MoO 2 Br 2 , Mo 2 O 3 Cl 6 , molybdenum trioxide, and mixtures thereof.

5. The method of claim 2 , wherein the amount of molybdenum atoms in the molybdenum containing friction modifier is 0.1% to 20%.

6. The method of claim 2 , wherein the amount of molybdenum atoms in the molybdenum containing friction modifier is about 3.0% to about 9.0%.

7. The method of claim 2 , wherein the amount of molybdenum atoms in the molybdenum containing friction modifier is about 4.0% to about 6.0%.

Assignees

• Chevron Oronite Co

Inventors

• Suen Yat Fan
• Mclain Julian H

Classifications

• C10N2040/25

  Internal-combustion engines · CPC title

• C10M2201/062

  Oxides; Hydroxides; Carbonates or bicarbonates · CPC title

• C10M159/12 Primary

  Reaction products · CPC title

• C10M2227/066

  derived from Mo or W · CPC title

• C10M159/18 Primary

  Complexes with metals · CPC title