Molybdenum-containing aminated sulfurized olefin lubricating oil additives

• US 4,362,633 A
• Filed: 10/10/1980
• Issued: 12/07/1982
• Est. Priority Date: 10/10/1980
• Status: Expired due to Term

• Current Assignee: Ethyl Corporation (Newmarket Corporation)
• Original Assignee: Standard Oil Company (BP PLC)
• Inventors: Spence, J. Ronald, West, C. Thomas
• Primary Examiner(s): Metz, Andrew
• Application Number:
  US06/196,055
• Time in Patent Office: 788 Days
• Field of Search: 252/46.4, 252/49.7, 252/46.7, 260/132, 260/125
• US Class Current: 508/334
• CPC Class Codes: C07F 11/005 compounds without a metal-carbon linkage
• CPC Class Codes: C08F 10/00 Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• CPC Class Codes: C08F 8/42 Introducing metal atoms or metal-containing groups
• CPC Class Codes: C10M 159/18 Complexes with metals
• CPC Class Codes: C10M 2207/027 Neutral salts thereof
• CPC Class Codes: C10M 2209/084 Acrylate; Methacrylate
• CPC Class Codes: C10M 2219/024 of esters, e.g. fats
• CPC Class Codes: C10M 2219/046 Overbasedsulfonic acid salts
• CPC Class Codes: C10M 2221/00 Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
• CPC Class Codes: C10M 2221/041 involving sulfurisation of macromolecular compounds, e.g. polyolefins
• CPC Class Codes: C10M 2223/045 Metal containing thio derivatives
• CPC Class Codes: C10M 2229/02 Unspecified siloxanes; Silicones
• CPC Class Codes: C10M 2229/05 containing atoms other than silicon, hydrogen, oxygen or carbon
• CPC Class Codes: C10N 2010/04 Groups 2 or 12
• CPC Class Codes: C10N 2010/12 Groups 6 or 16

Abstract

The reaction product of an olefin, sulfur or sulfur-yielding compound, an amine and a molybdenum compound is a highly effective lubricant additive providing friction modification, antioxidant activity and dispersancy.

Claims

1. A multifunctional lubricant additive composition providing friction reduction, oxidation resistance and dispersancy, which comprises the product of the process of reacting at a temperature of from 50°

-500°

C. an olefin having 10-10,000 carbon atoms with about 0.1 to about 20 moles of sulfur or a sulfur-yielding compound per mole of the olefin to form a sulfurized olefin;

reacting the sulfurized olefin at a temperature of from 50°

-400°

C. with 0.1 to 20.0 moles of a polyamine to form an aminated sulfurized olefin and reacting the aminated sulfurized olefin at a temperature of from 50°

-300°

C. with about 0.1 to 10.0 moles of a molybdenum compound per mole of the olefin to form the additive composition.

2. The multifunctional lubricant additive composition of claim 1 further comprising reacting the sulfurized olefin with the polyamine in the presence of a reaction promoting amount of an alkaline earth metal.

11. A lubricant comprising a major portion of a lubricating oil and about 0.01 to 10.0 wt% based on the oil of the product of claim 1 or 3.

3. A multifunctional lubricant additive composition providing friction reduction, oxidation resistance, and dispersancy, which comprises the reaction product of (a) an olefin having from 10 to 10,000 carbon atoms;

(b) a polyamine having the formula NH₂ [(CH₂)_z NH]_x H, wherein z is an integer from 2 to 12 and x is an integer from 1 to 10, and wherein z is from 2 to 6 when x is from 2 to 10;

(c) sulfur or a sulfur-yielding compound and (d) a molybdenum compound;

wherein the olefin is reacted with said sulfur or sulfur-yielding compound at a temperature of from 50°

-500°

C. to form a sulfurized olefin, the sulfurized olefin is reacted with the polyamine at a temperature of from 50°

-400°

C. to form an aminated sulfurized olefin, and the aminated sulfurized olefin is reacted with the molybdenum compound at a temperature of from 50°

-300°

C.

4. The lubricant additive composition of claim 3 wherein the amount of said molybdenum compound is about 0.1 to 10.0 moles per mole of olefin.

5. The composition of claim 3 wherein the olefin comprises a substantially amorphous or viscous polyolefin.

6. The composition of claim 5 wherein the viscous polyolefin is polyisobutylene, an ethylene-propylene copolymer, an ethylene-propylene-diene terpolymer, or mixtures thereof.

7. The composition of claim 3 wherein the polyamine comprises a polyalkylenepolyamine.

8. The composition of claim 7 wherein the polyalkylenepolyamine is ethylenediamine, diethylenetriamine, tetraethylenepentamine, triethylenetetramine, hexamethylenediamine or mixtures thereof.

9. The composition of claim 3 wherein the molybdenum compound is molybdic oxide, ammonium molybdate, molybdenum halide, or mixtures thereof.

10. The composition of claim 8 wherein the molybdenum compound comprises an aqueous solution of a molybdenum compound.