Titanium and molybdenum compounds and complexes as additives in lubricants

Patent metadata

Field	Value
Publication number	US-10266786-B2
Application number	US-201615001587-A
Country	US
Kind code	B2
Filing date	Jan 20, 2016
Priority date	Mar 10, 2010
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.

First claim

What is claimed is:

1. A lubricating composition comprising:
(a) an oil of lubricating viscosity;
(b) about 5 to about 100 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material which comprises a titanium (IV) neodecanoate;
(c) about 50 to about 150 parts per million by weight molybdenum in the form of an oil-soluble molybdenum-containing material comprising a molybdenum hydrocarbyldithiocarbamate; and
(d) about 0.3 to about 3 percent by weight of a hindered phenolic antioxidant.

2. The lubricating composition of claim 1 wherein the amount of molybdenum is about 70 to about 150 parts per million by weight.

3. The lubricating composition of claim 1 wherein the hindered phenolic antioxidant comprises a hindered phenolic ester antioxidant.

4. The lubricating composition of claim 1 wherein the amount of the phenolic antioxidant is about 0.7 to about 2.0 percent by weight.

5. The lubricating composition of claim 1 wherein the amount of phosphorus in said composition is less than about 1000 parts per million by weight.

6. The lubricating composition of claim 1 further comprising at least one additive selected from the group consisting of
(e) anti-wear agents and
(f) dispersants.

7. The lubricating composition of claim 1 further comprising (g) a sodium-containing detergent in an amount to contribute about 100 to about 2000 parts per million weight sodium to the composition.

8. The lubricating composition of claim 1 further comprising (h) about 0.1 to about 2.0 weight percent of a component comprising a hydroxycarboxylic acid or an ester, amide, imide, or salt thereof, or a derivative thereof with multiple of the foregoing functionalities.

9. A lubricating composition comprising:
(a) an oil of lubricating viscosity;
(b) about 5 to about 100 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material which comprises a titanium (IV) neodecanoate; and
(h) about 0.1 to about 2.0 weight percent of a component comprising a hydroxycarboxylic acid or an ester, amide, imide, or salt thereof, or a derivative thereof with multiple of the foregoing functionalities.

10. The lubricating composition of claim 9 wherein the component of (h) comprises tartaric acid, malic acid, glycolic acid, or citric acid or an ester, amide, imide, or salt thereof.

11. The lubricating composition of claim 9 wherein the component of (h) comprises oleyl tartrimide or a diester of tartaric acid and one or more alcohols of about 8 to about 18 carbon atoms.

12. The lubricating composition of claim 9 further comprising (g) a metal-containing detergent other than a Ti-containing detergent.

13. The lubricating composition of claim 12 wherein the metal-containing detergent comprises a sodium-containing detergent.

14. The lubricating composition of claim 13 wherein the sodium-containing detergent contributes about 100 to about 2000 parts per million by weight sodium to the lubricating composition.

15. The lubricating composition of claim 9 further comprising: (c) about 50 to about 150 parts per million by weight molybdenum in the form of an oil-soluble molybdenum-containing material comprising a molybdenum hydrocarbyldithiocarbamate.

16. The lubricating composition of claim 1 wherein the oil-soluble titanium-containing material has a number average molecular weight of less than about 20,000.

17. A method for lubricating an internal combustion engine, comprising supplying to said engine the lubricating composition of claim 1 .

18. A method for lubricating an internal combustion engine, comprising supplying to said engine the lubricating composition of claim 9 .

Assignees

• Lubrizol Corp

Inventors

• Davies Mark C
• Carrick Virginia A
• Kocsis Jody A
• Mosier Patrick E
• Gieselman Matthew D
• Pudelski John K
• Dohner Brent R
• Vilardo Jonathan S

Classifications

• C10N2010/08

  Groups 4 or 14 · CPC title

• C10N2040/25

  Internal-combustion engines · CPC title

• C10N2030/04

  Detergent property or dispersant property · CPC title

• C10N2010/12

  Groups 6 or 16 · CPC title

• C10N2030/42

  Phosphor free or low phosphor content compositions · CPC title