Saturated aliphatic hydrocarbon compound composition, lubricant composition, and method for producing saturated aliphatic hydrocarbon compound composition

Patent metadata

Field	Value
Publication number	US-12351765-B2
Application number	US-202017629173-A
Country	US
Kind code	B2
Filing date	Jul 20, 2020
Priority date	Jul 25, 2019
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

A saturated aliphatic hydrocarbon compound composition having an evaporation loss of 4% by mass or less as determined by the Noack method, a kinetic viscosity at 100° C. of 6.5 mm2/s or less, and an average carbon number of 36 to 44. A lubricating oil composition may contain such a saturated aliphatic hydrocarbon compound composition. A method for producing a saturated aliphatic hydrocarbon compound composition, may include: (1) oligomerizing an olefin to obtain an olefin oligomer; (2) isomerizing the olefin oligomer to obtain an isomer; and (3) hydrogenating the isomer.

First claim

The invention claimed is:

1. A saturated aliphatic hydrocarbon compound composition, comprising:
a saturated aliphatic hydrocarbon compound, having a carbon number of 40, in 20% by mass or more,
wherein the saturated aliphatic hydrocarbon compound comprises a plurality of isomers, in a gas chromatography chromatogram of the saturated aliphatic hydrocarbon compound composition, an area of a main peak is 40% or less of a total peak area corresponding to the saturated aliphatic hydrocarbon compound, and the saturated aliphatic hydrocarbon compound composition has an evaporation loss of 4% by mass or less as determined by the Noack method, a kinematic viscosity at 100° C. of 6.5 mm 2 /s or less, and an average carbon number of 36 to 44.

2. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein the plurality of the isomers of the saturated aliphatic hydrocarbon compound are 90% by mass or more of the composition.

3. The saturated aliphatic hydrocarbon compound composition of claim 2 , wherein the area of the main peak is 35% or less of the total peak area.

4. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein the area of the main peak is 35% or less of the total peak area.

5. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein the plurality of the isomers comprises 11-methyl-11,13-dioctyltricosane at a content of 40% by mass or less, relative to total isomer mass.

6. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein a content of the saturated aliphatic hydrocarbon compound is 30% by mass or more.

7. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein a content of the saturated aliphatic hydrocarbon compound is 90% by mass or more.

8. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein a content of the saturated aliphatic hydrocarbon compound is 94% by mass or more.

9. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein the saturated aliphatic hydrocarbon compound composition has a proportion of quaternary carbon atoms per molecule in 1.0% or less.

10. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein the saturated aliphatic hydrocarbon compound comprises 11-methyl-11,13-dioctyltricosane in a content of 23% by mass or less.

11. The saturated aliphatic hydrocarbon compound composition of claim 1 , wherein the area of the main peak is 25% or less of the total peak area.

12. A lubricating oil composition, comprising:
the saturated aliphatic hydrocarbon compound composition of claim 1 .

13. A method for producing the saturated aliphatic hydrocarbon compound composition of claim 1 , comprising:
oligomerizing an olefin to obtain an olefin oligomer;
isomerizing the olefin oligomer to obtain an isomer; and
hydrogenating the isomer to obtain the saturated aliphatic hydrocarbon compound composition.

14. The method of claim 13 , wherein the olefin oligomer is isomerized in the presence of a Friedel-Crafts catalyst.

15. The method of claim 14 , wherein the Friedel-Crafts catalyst comprises an organoaluminum compound.

16. The method of claim 13 , wherein the olefin is oligomerized in the presence of a Friedel-Crafts catalyst.

17. The method of claim 13 , further comprising:
distilling the saturated aliphatic hydrocarbon compound composition.

18. The method of claim 13 , wherein the olefin comprises 90% by mass or more of an olefin having a carbon number of 20.

19. The method of claim 13 , wherein the olefin is a dimer of 1-decene.

Assignees

• Idemitsu Kosan Co

Inventors

• Yokota Kiyohiko
• Katayama Kiyokazu
• Samejima Kanako
• Kagami Narinobu
• Oba Kouta
• Ueda Naoyuki
• Sakaguchi Takahiro

Classifications

• C10N2030/02

  Pour-point; Viscosity index · CPC title

• C10M2203/022

  saturated · CPC title

• C10M171/02 Primary

  Specified values of viscosity or viscosity index · CPC title

• C10M105/04 Primary

  aliphatic · CPC title

• C10G2300/304

  Pour point, cloud point, cold flow properties · CPC title