PASSENGER CAR LUBRICATING OIL COMPOSITIONS FOR FUEL ECONOMY

• US 20190106651A1
• Filed: 10/06/2017
• Published: 04/11/2019
• Est. Priority Date: 10/06/2017
• Status: Abandoned Application

• Current Assignee: Chevron Oronite Company LLC (Chevron Corp.)
• Original Assignee: Chevron Japan Ltd. (Chevron Corp.), Chevron Oronite Company LLC (Chevron Corp.)
• Inventors: Kubo, Koichi, Takeuchi, Yoshitaka, Kanauchi, Masaya, Sone, Chihiro, Suen, Yat Fan, Miller, Trevor W.
• Application Number:
  US15/726,652
• Publication Number:
  US 20190106651A1
• Time in Patent Office: Days
• CPC Class Codes: C10M 125/26 Compounds containing silicon or boron, e.g. silica, sand
• CPC Class Codes: C10M 129/10 having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
• CPC Class Codes: C10M 129/54 containing hydroxy groups
• CPC Class Codes: C10M 129/68 Esters epoxidised C10M129/66
• CPC Class Codes: C10M 133/12 having amino groups bound to a carbon atom of a six-membered aromatic ring
• CPC Class Codes: C10M 133/16 Amides; Imides
• CPC Class Codes: C10M 133/44 Five-membered ring containing nitrogen and carbon only
• CPC Class Codes: C10M 135/10 Sulfonic acids or derivatives thereof
• CPC Class Codes: C10M 137/10 Thio derivatives
• CPC Class Codes: C10M 159/12 Reaction products
• CPC Class Codes: C10M 163/00 Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
• CPC Class Codes: C10M 169/04 Mixtures of base-materials and additives
• CPC Class Codes: C10M 2201/087 Boron oxides, acids or salts
• CPC Class Codes: C10M 2203/1006 used as base material
• CPC Class Codes: C10M 2203/1025 used as base material
• CPC Class Codes: C10M 2207/023 having hydroxy groups bound to carbon atoms of six-membered aromatic rings
• CPC Class Codes: C10M 2207/026 with tertiary alkyl groups
• CPC Class Codes: C10M 2207/028 Overbased salts thereof
• CPC Class Codes: C10M 2207/262 derived from hydroxy substituted aromatic acids, e.g. salicylates
• CPC Class Codes: C10M 2207/28 Esters epoxidised esters C10M2207/24
• CPC Class Codes: C10M 2207/282 : of (cyclo)aliphatic oolycarboxylic acids
• CPC Class Codes: C10M 2215/06 : having amino groups bound to carbon atoms of six-membered aromatic rings
• CPC Class Codes: C10M 2215/064 : Di- and triaryl amines
• CPC Class Codes: C10M 2215/08 : Amides
• CPC Class Codes: C10M 2215/223 : Five-membered rings containing nitrogen and carbon only
• CPC Class Codes: C10M 2215/28 : Amides; Imides
• CPC Class Codes: C10M 2219/046 : Overbasedsulfonic acid salts
• CPC Class Codes: C10M 2223/045 : Metal containing thio derivatives
• CPC Class Codes: C10M 2227/066 : derived from Mo or W
• CPC Class Codes: C10N 2020/02 : Viscosity; Viscosity index
• CPC Class Codes: C10N 2030/02 : Pour-point; Viscosity index
• CPC Class Codes: C10N 2030/04 : Detergent property or dispersant property
• CPC Class Codes: C10N 2030/10 : Inhibition of oxidation, e.g. anti-oxidants
• CPC Class Codes: C10N 2030/18 : Anti-foaming property
• CPC Class Codes: C10N 2030/42 : Phosphor free or low phosphor content compositions
• CPC Class Codes: C10N 2030/45 : Ash-less or low ash content
• CPC Class Codes: C10N 2030/54 : Fuel economy
• CPC Class Codes: C10N 2030/56 : Boundary lubrication or thin film lubrication
• CPC Class Codes: C10N 2040/252 : Diesel engines
• CPC Class Codes: C10N 2040/255 : Gasoline engines
• CPC Class Codes: C10N 2060/09 : Treatment with nitrogen containing compounds
• CPC Class Codes: C10N 2060/10 : by sulfur or a compound containing sulfur
• CPC Class Codes: C10N 2060/14 : by boron or a compound containing boron
• CPC Class Codes: C10N 2070/00 : Specific manufacturing methods for lubricant compositions
• CPC Class Codes: C10N 2070/02 : Concentrating of additives
• CPC Class Codes: F02M 37/22 : Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

Abstract

The present disclosure generally relates to an internal combustion engine lubricating oil composition comprising: (a) a major amount of a base oil of lubricating viscosity; (b) a nitrogen-containing dispersant; (c) an alkaline earth metal containing detergent; (d) a compound comprising the reaction product of: (i) a nitrogen-containing reactant, wherein the nitrogen-containing reactant comprises an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof, (ii) a source of boron, and (iii) a hydrocarbyl polyol, having at least three hydroxyl groups.

Also provided is a method for improving fresh oil or used oil fuel economy in an internal combustion engine comprising lubricating said engine with said lubricating oil composition.

Claims

1. A passenger car internal combustion engine lubricating oil composition comprising:

(a) a major amount of a base oil of lubricating viscosity, said base oil having a kinematic viscosity (Kv) at 100°

C. of about 2.0 to about 12 centistokes (cSt);

(b) a nitrogen-containing dispersant;

(c) an alkaline earth metal non-borated containing detergent providing from about 0.03 to about 0.7 wt. % based on the metal content to the lubricating oil composition;

(d) about 0.01 wt. % to about 2.0 wt. % of a compound comprising the reaction product of;

(i) a nitrogen-containing reactant, wherein the nitrogen-containing reactant comprises an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof,

(ii) a source of boron, and

(iii) a hydrocarbyl polyol, having at least three hydroxyl groups.

2. The lubricating oil composition of claim 1, wherein the nitrogen-containing reactant is an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof comprises a bis-ethoxy alkylamine or a bis-ethoxy alkylamide.

3. The lubricating oil composition of claim 2, wherein the alkyl group in the bis-ethoxy alkylamine comprises oleyl, dodecyl, or 2-ethylhexyl.

4. The lubricating oil composition of claim 2, wherein the alkyl group in the bis-ethoxy alkylamide is derived from coconut oil.

5. The lubricating oil composition of claim 1, wherein the source of boron is boric acid.

6. The lubricating oil composition of claim 1, wherein the hydrocarbyl polyol comprises glycerol or pentaerythritol.

7. The lubricating oil composition of claim 1, wherein the lubricating oil composition has a HTHS viscosity at 150°

C. in a range of about 1.3 to about 3.5 cP.

8. The lubricating oil composition of claim 1, wherein the alkaline earth metal detergent is selected from the group consisting of a calcium or magnesium containing salicylate, carboxylate, phenate, sulfonate, or combination thereof.

9. The lubricating oil composition of claim 1, wherein the lubricating oil composition further comprises a organomolybdenum compound.

10. The lubricating oil composition of claim 1, further comprising a ZnDTP compound.

11. The lubricating oil composition of claim 1, wherein the phosphorus content of the lubricating oil composition is less than 0.08 wt. %.

12. The lubricating oil composition of claim 1, wherein the lubricating oil composition has a sulfated ash level of less than 1.6 wt. %.

13. A method for improving fresh oil or used oil fuel economy in a passenger car internal combustion engine comprising lubricating said engine with a lubricating oil composition comprising:

(a) a major amount of a base oil of lubricating viscosity, said base oil having a kinematic viscosity (Kv) at 100°

C. of about 2.0 to about 12 centistokes (cSt);

(b) a nitrogen-containing dispersant;

(c) an alkaline earth metal non-borated containing detergent providing from about 0.03 to about 0.7 wt. % based on the metal content to the lubricating oil composition;

(d) about 0.01 wt. % to about 2.0 wt. % of a compound comprising the reaction product of;

(i) a nitrogen-containing reactant, wherein the nitrogen-containing reactant comprises an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof,

(ii) a source of boron, and

(iii) a hydrocarbyl polyol, having at least three hydroxyl groups.

14. The method of claim 13 wherein the internal combustion engine is selected from a direct injection spark ignition engine and a port fuel injection spark ignition engine coupled to an electric motor/battery system in a hybrid vehicle.

15. The method of claim 13, wherein engine is equipped with a gasoline particulate filter.

16. A heavy-duty diesel internal combustion engine lubricating oil additive composition comprising:

(a) a major amount of a base oil of lubricating viscosity, said base oil having a kinematic viscosity (Kv) at 100°

C. of about 2.0 to about 12 centistokes (cSt);

(b) a nitrogen-containing dispersant;

(c) an alkaline earth metal non-borated containing detergent providing from about 0.03 to about 0.7 wt. % based on the metal content to the lubricating oil composition;

(d) greater than 0.30 wt. % to about 2.0 wt. % of a compound comprising the reaction product of;

(i) a nitrogen-containing reactant, wherein the nitrogen-containing reactant comprises an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof,

(ii) a source of boron, and

(iii) a hydrocarbyl polyol, having at least three hydroxyl groups.

17. The lubricating oil composition of claim 16, wherein the nitrogen-containing reactant is an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof comprises a bis-ethoxy alkylamine or a bis-ethoxy alkylamide.

18. The lubricating oil composition of claim 17, wherein the alkyl group in the bis-ethoxy alkyl amine comprises oleyl, dodecyl, or 2-ethylhexyl.

19. The lubricating oil composition of claim 17, wherein the alkyl group in the bis-ethoxy alkyl amide is derived from coconut oil.

20. The lubricating oil composition of claim 16, wherein the source of boron is boric acid.

21. The lubricating oil composition of claim 16, wherein the hydrocarbyl polyol comprises glycerol or pentaerythritol.

22. The lubricating oil composition of claim 16, wherein the lubricating oil composition has a HTHS viscosity at 150°

C. in a range of about 2.5 to about 3.5 cP.

23. The lubricating oil composition of claim 16, wherein the alkaline earth metal detergent is selected from the group consisting of a calcium or magnesium containing salicylate, carboxylate, phenate, sulfonate, or combination thereof.

24. The lubricating oil composition of claim 16, wherein the lubricating oil composition further comprises a organomolybdenum compound.

25. The lubricating oil composition of claim 16, further comprising a ZnDTP compound.

26. The lubricating oil composition of claim 16, wherein the phosphorus content of the lubricating oil composition is less than 0.08 wt. %.

27. The lubricating oil composition of claim 16, wherein the lubricating oil composition is substantially free of phosphorus containing additives.

28. The lubricating oil composition of claim 16, wherein the lubricating oil composition is substantially free of zinc containing additives.

29. The lubricating oil composition of claim 16, wherein the lubricating oil composition has a sulfated ash level of less than 1.6 wt. %.

30. A method for improving fresh oil or used oil fuel fuel economy in a heavy-duty diesel internal combustion engine comprising lubricating said engine with a lubricating oil additive composition comprising:

(a) a major amount of a base oil of lubricating viscosity, said base oil having a kinematic viscosity (Kv) at 100°

C. of about 2.0 to about 12 centistokes (cSt);

(b) a nitrogen-containing dispersant;

(c) an alkaline earth metal non-borated containing detergent providing from about 0.03 to about 0.7 wt. % based on the metal content to the lubricating oil composition;

(d) greater than 0.30 wt. % to about 2.0 wt. % of a compound comprising the reaction product of;

(i) a nitrogen-containing reactant, wherein the nitrogen-containing reactant comprises an alkyl alkanolamide, an alkyl alkoxylated alkanolamide, an alkyl alkanolamine, an alkyl alkoxylated alkanolamine or mixtures thereof,

(ii) a source of boron, and

(iii) a hydrocarbyl polyol, having at least three hydroxyl groups.

31. The method of claim 30, wherein the engine is equipped with a diesel particulate filter.