Anti-corrosive lubricant composition for electrical apparatus

Patent metadata

Field	Value
Publication number	US-12435292-B2
Application number	US-202418795790-A
Country	US
Kind code	B2
Filing date	Aug 6, 2024
Priority date	Feb 18, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

The present invention relates to lubricant composition comprising:
a corrosion inhibitor comprising A1 and A2:
A1: 0.3-3 wt. % of one or more octadecylamine N—C 10-20 alkanoyl sarcosinates, A2: 1-5 wt. % of one or more substances selected from lanolin magnesium soap, lanolin calcium soap, lanolin barium soap, lanolin lithium soap, barium petroleum sulfonate and sodium petroleum sulfonate,
0.2-2 wt. % of one or more surfactants selected from Span-80, AEO-9 and TX-4; 10-40 wt. % of a lubricant base, 0.2-2 wt. % of fullerene C60, 50-80 wt. % of a solvent selected from D80, D100 and D110, and optionally, a propellant gas; all wt. % percentages are based on the total weight of the lubricant composition.

First claim

What is claimed is:

1. A lubricant composition comprising:
A) a corrosion inhibitor comprising A1 and A2:
A1: 0.3-3 wt. % of one or more octadecylamine N—C 10-20 alkanoyl sarcosinates,
A2: 1-5 wt. % of one or more substances selected from lanolin magnesium soap, lanolin calcium soap, lanolin barium soap, lanolin lithium soap, barium petroleum sulfonate and sodium petroleum sulfonate,

B) 0.2-2 wt. % of one or more surfactants selected from Span-80, AEO-9 and TX-4,
C) 10-40 wt. % of a lubricant base,
D) 0.2-2 wt. % of fullerene C60,
E) 50-80 wt. % of a solvent selected from D80, D100 and D110, and
F) Optionally, a propellant gas;
all wt. % percentages are based on total weight of the lubricant composition.

2. The composition according to claim 1 , wherein the one or more octadecylamine N—C 10-20 alkanoyl sarcosinates is/are selected from octadecylamine N-oleoyl sarcosinate, octadecylamine N-palmitoyl sarcosinate, octadecylamine N-myristoyl sarcosinate, and octadecylamine N-lauroyl sarcosinate.

3. The composition according to claim 1 , wherein component A1, the one or more octadecylamine N—C 10-20 alkanoyl sarcosinate is octadecylamine N-oleoyl sarcosinate and/or octadecylamine N-lauroyl sarcosinate; and component A2 is selected from lanolin magnesium soap, lanolin calcium soap, lanolin barium soap, and lanolin lithium soap.

4. The composition according to claim 1 , wherein the lubricant base C) is selected from 15 #white mineral oil, 32 #lubricant base, 46 #lubricant base, 68 #lubricant base, 400SN lubricant base, 150N lubricant base, 400N lubricant base, and 500N lubricant base.

5. The composition according to claim 1 , wherein the propellant gas is N 2 and/or CO 2 , the propellent gas being present in an amount of 1.2 to 4.5 wt. %.

6. The composition according to claim 1 , wherein component A1 is present in an amount of 0.4-2.5 wt. %.

7. The composition according to claim 1 , wherein component A2 is in an amount of 1.5-4 wt. %.

8. The composition according to claim 1 , wherein component B) is in an amount of 0.5-1.5 wt. %.

9. The composition according to claim 1 , wherein component C) is in an amount of 20-35 wt. %.

10. The composition according to claim 1 , wherein component D) is in an amount of 0.3-1 wt. %.

11. The composition according to claim 1 , wherein component E) is in an amount of 55-70 wt. %.

12. The composition according to claim 1 , wherein component F) the propellant gas is present in an amount of 1-5 wt. %.

Assignees

• Henkel Ag & Co Kgaa
• Guangdong Yingde Dosoon Fine Chemical Ind Co Ltd

Inventors

• Liu Guoguang
• Pan Xiaohui
• Liu Zengfan

Classifications

• C10M2219/044

  Sulfonic acids, Derivatives thereof, e.g. neutral salts · CPC title

• C10N2030/12

  Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives · CPC title

• C10N2030/04

  Detergent property or dispersant property · CPC title

• C10M2215/082

  containing hydroxyl groups; Alkoxylated derivatives · CPC title

• C10M2201/16

  Carbon dioxide · CPC title