Lubricant Composition

• US 20190322958A1
• Filed: 11/08/2017
• Published: 10/24/2019
• Est. Priority Date: 11/08/2016
• Status: Abandoned Application

• Current Assignee: BASF SE
• Original Assignee: BASF SE
• Inventors: DeSantis, Kevin J., Scanlon, Eugene, Kuhlman, Roger
• Application Number:
  US16/348,209
• Publication Number:
  US 20190322958A1
• Time in Patent Office: Days
• CPC Class Codes: C10M 129/18 Epoxides
• CPC Class Codes: C10M 131/04 aliphatic
• CPC Class Codes: C10M 133/04 Amines, e.g. polyalkylene polyamines; Quaternary amines polyalkylene polyamines with eleven or more monomer units C10M149/22
• CPC Class Codes: C10M 133/16 Amides; Imides
• CPC Class Codes: C10M 135/10 Sulfonic acids or derivatives thereof
• CPC Class Codes: C10M 139/00 Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
• CPC Class Codes: C10M 141/06 at least one of them being an organic nitrogen-containing compound
• CPC Class Codes: C10M 141/08 at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
• CPC Class Codes: C10M 141/12 at least one of them being an organic compound containing atoms of elements not provided for in groups C10M141/02 - C10M141/10
• CPC Class Codes: C10M 169/00 Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
• CPC Class Codes: C10M 2201/087 Boron oxides, acids or salts
• CPC Class Codes: C10M 2207/042 Epoxides
• CPC Class Codes: C10M 2207/28 Esters
• CPC Class Codes: C10M 2211/022 aliphatic
• CPC Class Codes: C10M 2215/082 containing hydroxyl groups; Alkoxylated derivatives
• CPC Class Codes: C10M 2215/26 Amines
• CPC Class Codes: C10M 2215/28 Amides; Imides
• CPC Class Codes: C10M 2219/042 Sulfate esters
• CPC Class Codes: C10M 2219/044 Sulfonic acids, Derivatives thereof, e.g. neutral salts
• CPC Class Codes: C10M 2227/061 Esters derived from boron
• CPC Class Codes: C10M 2227/062 : Cyclic esters
• CPC Class Codes: C10N 2030/36 : Seal compatibility, e.g. with rubber

Abstract

A lubricant composition includes a base oil and an additive package. The additive package includes a seal compatibility additive chosen from a halide seal compatibility additive, an epoxide seal compatibility additive, a boroxine seal compatibility additive, a sulfonate ester seal compatibility additive, and combinations thereof. The alkoxylated amide and the ester are set forth in general formulas A and B, respectively: In general formulas A and B, each R¹³, R^II, R^III, and R^IV, is, independently, a linear or branched, saturated or unsaturated, hydrocarbyl group. In addition, at least one of R^II and R^III include an alkoxy group, and R^IV includes an amine group.

Claims

1. A lubricant composition comprising:

a base oil; and

an additive package comprising;

a seal compatibility additive chosen from a halide seal compatibility additive, an epoxide seal compatibility additive, a boroxine seal compatibility additive, a sulfonate ester seal compatibility additive, and combinations thereof;

an alkoxylated amide having a general formula (A);

2. The lubricant composition of claim 1 wherein said seal compatibility additive is an epoxide compound that has the general formula:

3. The lubricant composition of claim 1 wherein said seal compatibility additive is an epoxide compound that has the general formula:

4. The lubricant composition of claim 1, wherein said seal compatibility additive is an epoxide compound, wherein the epoxide compound includes fewer than five oxirane rings per molecule of said epoxide compound, and wherein said epoxide compound has a weight average molecular weight of from 30 to 1500.

7. The lubricant composition of claim 1 wherein at least one of R^II and R^III of said alkoxylated amide comprises at least one propoxy group.

8. The lubricant composition of claim 1 wherein:

R^II of said alkoxylated amide has a general formula;

9. The lubricant composition of claim 8 wherein 1≤

(n+m)≤

3.

10. The lubricant composition of claim 1 wherein R^IV has a general formula (XIV):

11. The lubricant composition of claim 10 wherein:

R¹⁹ is a hydrocarbyl group having a general formula (XV);

12. The lubricant composition of claim 11 wherein 0≤

(p+q)≤

3.

13. The lubricant composition of claim 1 wherein R¹³ of said alkoxylated amide and said ester are each, independently, a linear or branched, saturated or unsaturated, C₇-C₂₃ aliphatic hydrocarbyl group.

14. The lubricant composition of claim 12 wherein R¹³ of said alkoxylated amide or said ester comprises a hydroxyl group.

15. The lubricant composition of claim 1 wherein:

said alkoxylated amide is further defined as having a general formula;

R¹³—

C(═

O)—

N[R¹⁷—

O—

R¹⁸_n—

H][R¹⁷—

O—

R¹⁸_m—

H]; and

said ester is further defined as having a general formula;

R¹³—

C(═

O)—

O—

R¹⁷—

N[R¹⁷—

O—

R¹⁸_q—

H][R¹⁸_p—

H];

wherein,

each R¹³ is, independently, a linear or branched, saturated or unsaturated, C₇-C₂₃ aliphatic hydrocarbyl group,

each R¹⁷ is, independently, an alkyl group,

each R¹⁸ 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.

16. The lubricant composition of claim 1 wherein said alkoxylated amide has the following formula:

17. The lubricant composition of claim 1 wherein said ester has the following formula:

18. The lubricant composition according to claim 1 wherein said seal compatibility additive is an epoxide compound that has the following chemical structure:

19. The lubricant composition of claim 1 wherein said seal compatibility additive is an epoxide compound that is present in an amount of 0.01 to 8 wt. %, based on the total weight of said lubricant composition;

and

wherein said alkoxylated amide and said ester are present in a combined total amount of 0.01 to 8 wt. %, based on the total weight of said lubricant composition.

20. The lubricant composition of claim 1 having a fluoropolymer seal compatibility such that a fluoropolymer seal submerged in said lubricant composition exhibits a change in tensile strength of from −

50 to 10% when tested according to CEC L-39-T96.

5. (canceled)

6. The lubricant composition claim 5 wherein said epoxide compound has the following structure:

21. (canceled)

22. An additive package comprising:

a seal compatibility additive chosen from a halide seal compatibility additive, an epoxide seal compatibility additive, a boroxine seal compatibility additive, a sulfonate ester seal compatibility additive, and combinations thereof;

an alkoxylated amide having a general formula (A);