Alkoxylated amides, esters, and anti-wear agents in lubricant compositions

Patent metadata

Field	Value
Publication number	US-9909081-B2
Application number	US-201514926988-A
Country	US
Kind code	B2
Filing date	Oct 29, 2015
Priority date	Oct 31, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

The present disclosure provides an additive package for a lubricant composition that includes an alkoxylated amide, an ester, and an anti-wear agent including phosphorus, molybdenum, or a combination thereof. The present disclosure also provides a lubricant composition that includes a base oil, the alkoxylated amide, the ester, and the anti-wear agent including phosphorus, molybdenum, or a combination thereof. The present disclosure further provides a method of lubricating an internal combustion engine for improving fuel economy.

First claim

What is claimed is:

1. A lubricant composition comprising:
(A) a base oil;
(B) an alkoxylated amide having a general formula (I):

(C) an ester having a general formula (II):

wherein;
each R 1 , R 2 , R 3 , and R 4 , is, independently, a linear or branched, saturated or unsaturated, hydrocarbyl group,
at least one of R 2 and R 3 comprises an alkoxy group, and
R 4 comprises an amine group; and

(D) an anti-wear agent comprising phosphorus, molybdenum, or a combination thereof.

2. The lubricant composition of claim 1 wherein at least one of R 2 and R 3 of said alkoxylated amide comprises a propoxy group.

3. The lubricant composition of claim 1 wherein:
R 2 of said alkoxylated amide has a general formula (III):

and
R 3 of said alkoxylated amide has a general formula (IV):

wherein
each R 5 is, independently, an alkyl group,
each R 6 is, independently, an alkoxy group,
n is an integer from 0 to 5,
m is an integer from 0 to 5, and
1≦(n+m)≦5.

4. The lubricant composition of claim 1 wherein R 4 has a general formula (V):

wherein
R 5 is an alkyl group, and
each R 7 and R 8 is, independently, a linear or branched, saturated or unsaturated hydrocarbyl group.

5. The lubricant composition of claim 4 wherein:
R 7 is a hydrocarbyl group having a general formula (VI):

and
R 8 is a hydrocarbyl group having a general formula (VII):

wherein
each R 5 is, independently, an alkyl group,
each R 6 is, independently, an alkoxy group,
q is an integer from 0 to 5,
if q is 0, p is an integer from 0 to 5,
if q is >0, p is an integer from 1 to 5, and
0≦(p+q)≦5.

6. The lubricant composition of claim 1 wherein R 1 of said alkoxylated amide and said ester are each, independently, a linear or branched, saturated or unsaturated, C 7 -C 23 aliphatic hydrocarbyl group.

7. The lubricant composition of claim 6 wherein R 1 of said alkoxylated amide or said ester comprises a hydroxyl group.

8. The lubricant composition of claim 1 wherein:
said alkoxylated amide has a general formula (VIII):
R 1 —C(═O)—N[R 5 —O—R 6 n —H][R 5 —O—R 6 m —H]  (VIII);

and
said ester has a general formula (IX):
R 1 —C(═O)—O—R 5 —N[R 5 —O—R 6 q —H][R 6 p —H]  (IX);

wherein
each R 1 is, independently, a linear or branched, saturated or unsaturated, C 7 -C 23 aliphatic hydrocarbyl group,
each R 5 is, independently, an alkyl group,
each R 6 is, independently, an alkoxy group,
n is an integer from 0 to 5,
m is an integer from 0 to 5,
1≦(n+m)≦5,
q is an integer from 0 to 5,
if q is 0, p is an integer from 0 to 5,
if q is >0, p is an integer from 1 to 5, and
0≦(p+q)≦5.

9. The lubricant composition of claim 8 wherein:
each R 1 is, independently, a linear or branched, saturated or unsaturated, C 7 -C 23 aliphatic hydrocarbyl group;
each R 5 is, independently, an ethyl group or a propyl group;
each R 6 is, independently, a propoxy group;
n is an integer from 0 to 5;
m is an integer from 0 to 5;
1≦(n+m)≦5;
q is an integer from 0 to 5;
if q is 0, p is an integer from 1 to 5;
if q is >0, p is an integer from 1 to 5;
1≦(p+q)≦5; and
said lubricant composition comprises said alkoxylated amide and said ester in a weight ratio of less than 70:30 of said ester to said alkoxylated amide.

10. The lubricant composition of claim 1 wherein said base oil is further defined as a crankcase lubricant composition.

11. The lubricant composition of claim 1 wherein said base oil comprises an API Group I Oil, an API Group II Oil, an API Group III Oil, an API Group IV Oil, or combinations thereof, and wherein said base oil has a viscosity ranging from 1 to 20 cSt when tested at 100° C. according to ASTM D445.

12. The lubricant composition of claim 1 comprising said alkoxylated amide and said ester in a weight ratio of less than 50:50 of said ester to said alkoxylated amide.

13. The lubricant composition of claim 1 wherein said alkoxylated amide is present in an amount of from 0.01 to 20 wt. % based on the total weight of said lubricant composition.

14. The lubricant composition of claim 1 wherein said ester is present in an amount of from 0.01 to 20 wt. % based on the total weight of said lubricant composition.

15. The lubricant composition of claim 1 wherein said anti-wear agent is present in an amount of from 0.001 to 30 wt. % based on the total weight of said lubricant composition.

16. A method of lubricating an internal combustion engine for improving the fuel economy of the internal combustion engine, said method comprising:
providing a lubricant composition comprising:
(A) a base oil;
(B) an alkoxylated amide having a general formula (I):

(C) an ester having a general formula (II):

wherein;
each R 1 , R 2 , R 3 , and R 4 , is, independently, a linear or branched, saturated or unsaturated, hydrocarbyl group,
at least one of R 2 and R 3 comprises an alkoxy group, and
R 4 comprises an amine group; and

(D) an anti-wear agent comprising phosphorus, molybdenum, or a combination thereof; and

lubricating the internal combustion engine with the lubricant composition.

17. The method of claim 16 wherein the anti-wear agent is a zinc dialkyl dithiophosphate.

18. An additive package for a lubricant composition, said additive package comprising:
(A) an alkoxylated amide having a general formula (I):

(B) an ester having a general formula (II):

wherein
each R 1 , R 2 , R 3 , and R 4 is, independently, a linear or branched, saturated or unsaturated hydrocarbyl group,
at least one of R 2 and R 3 comprises an alkoxy group, and
R 4 comprises an amine group; and

(C) an anti-wear agent comprising phosphorus, molybdenum, or a combination thereof.

19. The additive package of claim 18 wherein said anti-wear agent is a zinc dialkyl dithiophosphate.

Assignees

• Basf Se

Inventors

• Scanlon Eugene
• Hayden Thomas
• Jung Alfred
• Hoey Michael

Classifications

• C10N2010/04

  Groups 2 or 12 · CPC title

• C10M2215/082

  containing hydroxyl groups; Alkoxylated derivatives · CPC title

• C10N2030/06

  Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title

• C10M2215/042

  containing hydroxy groups; Alkoxylated derivatives thereof · CPC title

• C10N2030/54

  Fuel economy · CPC title