Method Of Forming Additive Packages and Lubricant Compositions That Include A Seal Compatibility Additive

Patent metadata

Field	Value
Publication number	US-2016281024-A1
Application number	US-201615081030-A
Country	US
Kind code	A1
Filing date	Mar 25, 2016
Priority date	Mar 27, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

This disclosure is directed to a method of forming an additive package for a lubricant composition. The method includes the step of providing a base oil and a dispersant, the step of heating the base oil and the dispersant, and the step of combining the base oil and the dispersant to form a first mixture. The method further includes the step of providing a detergent, the step of heating the detergent, and the step of combining the first mixture and the detergent to form a second mixture. The method further includes the step of providing an anti-wear additive and a seal compatibility additive, the step of heating the anti-wear additive the seal compatibility additive, and the step of combining the second mixture, the anti-wear additive, and the seal compatibility additive to form the additive package.

First claim

What is claimed is:

1 . A method of forming an additive package for a lubricant composition, said method comprising the steps of:
providing a base oil and a dispersant; heating the base oil and the dispersant to a temperature of from 75 to 115° C.; combining the base oil and the dispersant to form a first mixture; providing a detergent; heating the detergent to a temperature of from 50 to 90° C.; combining the first mixture and the detergent to form a second mixture; providing an antioxidant, an anti-wear additive, and a seal compatibility additive; heating the antioxidant, the anti-wear additive, and the seal compatibility additive to a temperature of from 30 to 70° C.; and combining the second mixture, the antioxidant, the anti-wear additive, and the seal compatibility additive to form the additive package.

2 . The method of claim 1 , wherein the seal compatibility additive comprises an epoxide compound, a boroxine compound, a sulfonate ester, a halogen compound, or combinations thereof.

3 . The method of claim 1 , wherein the dispersant comprises an amine dispersant.

4 . The method of claim 1 , wherein the anti-wear additive comprises a dihydrocarbyl dithiophosphate salt.

5 . The method of claim 1 , wherein the detergent comprises a sulfonate, a phenate, or a combination thereof.

6 . The method of claim 1 , wherein the antioxidant comprises an aminic antioxidant, a phenolic antioxidant, or a combination thereof.

7 . An additive package for a lubricant composition formed by the method of claim 1 .

8 . A method of forming an additive package for a lubricant composition, said method comprising the steps of:
providing a dispersant, a base oil, and a seal compatibility additive; heating the dispersant, the base oil, and the seal compatibility additive to a temperature of from 30 to 70° C.; combining the dispersant, the base oil, and the seal compatibility additive to form a first mixture; providing a detergent; heating the detergent to a temperature of from 30 to 70° C.; combining the first mixture and the detergent to form a second mixture; providing an antioxidant and an anti-wear additive; heating the antioxidant and the anti-wear additive to a temperature of from 30 to 70° C.; and combining the second mixture, the antioxidant, and the anti-wear additive to form the additive package.

9 . The method of claim 8 , wherein the seal compatibility additive comprises an epoxide compound, a boroxine compound, a sulfonate ester, a halogen compound, or combinations thereof.

10 . The method of claim 8 , wherein the dispersant comprises an amine dispersant.

11 . The method of claim 8 , wherein the anti-wear additive comprises a dihydrocarbyl dithiophosphate salt.

12 . The method of claim 8 , wherein the detergent comprises a sulfonate, a phenate, or a combination thereof.

13 . The method of claim 8 , wherein the antioxidant comprises an aminic antioxidant, a phenolic antioxidant, or a combination thereof.

14 . An additive package for a lubricant composition formed by the method of claim 8 .

15 . A lubricant composition that provides improved compatibility with fluoropolymer seals, said lubricant composition comprising:
a first base oil; and an additive package, comprising;
a second base oil and a dispersant combined at a temperature of from 75 to 115° C.,
a detergent combined at a temperature of from 50 to 90° C., and
an antioxidant, an anti-wear additive, and a seal compatibility additive combined at a temperature of from 30 to 70° C.

16 . The lubricant composition of claim 15 , wherein said seal compatibility additive comprises an epoxide compound, a boroxine compound, a sulfonate ester, a halogen compound, or combinations thereof.

17 . The lubricant composition of claim 15 , wherein said dispersant comprises an amine dispersant.

18 . The lubricant composition of claim 15 , wherein said anti-wear additive comprises a dihydrocarbyl dithiophosphate salt.

19 . The lubricant composition of claim 15 , wherein said detergent comprises a sulfonate, a phenate, or a combination thereof.

20 . The lubricant composition of claim 15 , wherein said antioxidant comprises an aminic antioxidant, a phenolic antioxidant, or a combination thereof.

Assignees

• Basf Se

Inventors

• Desantis Kevin J
• Hoey Michael

Classifications

• C10M2207/042

  Epoxides · CPC title

• C10M2215/02

  Amines, e.g. polyalkylene polyamines; Quaternary amines · CPC title

• C10M2211/022

  aliphatic · CPC title

• C10N2070/02

  Concentrating of additives · CPC title

• C10M2215/08

  Amides [having hydrocarbon substituents containing less than thirty carbon atoms] · CPC title