High-and low-viscosity estolide base oils and lubricants

Patent metadata

Field	Value
Publication number	US-9650328-B2
Application number	US-201514976350-A
Country	US
Kind code	B2
Filing date	Dec 21, 2015
Priority date	Aug 31, 2010
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

Provided herein are compounds of the formula:

in which n is an integer equal to or greater than 1; R 2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R 1 , R 3 , and R 4 , independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched, wherein compositions comprising the compounds are characterized by particular combinations of values for estolide number, kinematic viscosity, and pour point. Also provided are compositions containing the compounds and methods of making both the compounds and compositions thereof.

First claim

The invention claimed is:

1. A composition consisting essentially of one or more compounds of Formula I, said composition having an EN selected from an integer or fraction of an integer that is equal to or greater than 4, wherein the EN is the average number of estolide linkages in compounds according to Formula I, and a kinematic viscosity equal to or greater than 200 cSt when measured at 40° C., wherein the one or more compounds are selected from:

wherein
x is, independently for each occurrence, an integer selected from 0 to 20;
y is, independently for each occurrence, an integer selected from 0 to 20;
n is equal to or greater than 0;
R 1 is an optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and
R 2 is an optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched,
wherein each fatty acid chain residue of said at least one compound is independently optionally substituted.

2. The composition according to claim 1 , wherein
x is, independently for each occurrence, an integer selected from 0 to 14;
y is, independently for each occurrence, an integer selected from 0 to 14;
n is an integer selected from 1 to 20;
R 1 is an optionally substituted C 1 to C 22 alkyl that is saturated or unsaturated, and branched or unbranched; and
R 2 is an optionally substituted C 1 to C 22 alkyl that is saturated or unsaturated, and branched or unbranched, wherein each fatty acid chain residue is unsubstituted.

3. The composition according to claim 2 , wherein
x+y is, independently for each chain, an integer selected from 13 to 15; and
n is an integer selected from 0 to 12.

4. The composition according to claim 2 , wherein R 2 is a branched or unbranched C 1 to C 20 alkyl that is saturated.

5. The composition according to claim 4 , wherein R 2 is selected from branched C 6 to C 12 alkyl.

6. The composition according to claim 5 , wherein R 2 is 2-ethylhexyl.

7. The composition according to claim 2 , wherein R 1 is selected from unsubstituted C 1 to C 20 alkyl that is unbranched and saturated or unsaturated.

8. The composition according to claim 7 , wherein R 1 is saturated.

9. The composition according to claim 2 , wherein x is, independently for each occurrence, selected from 7 and 8.

10. The composition according to claim 9 , wherein y is, independently for each occurrence, selected from 7 and 8.

11. The composition according to claim 2 , wherein y is 0 for each occurrence.

12. The composition according to claim 2 , wherein said composition has an EN selected from an integer or fraction of an integer that is equal to or greater than 5.

13. The composition according to claim 2 , wherein said composition has a kinematic viscosity of 200 cSt to 250 cSt at 40° C.

14. The composition according to claim 1 , wherein said composition exhibits an iodine value (IV) of less than 15 cg/g.

15. The composition according to claim 1 , wherein said composition exhibits an iodine value (IV) of less than 10 cg/g.

16. A method comprising contacting a gearbox with the composition according to claim 1 .

17. A method comprising contacting a wind turbine with the composition according to claim 1 .

Assignees

• Biosynthetic Technologies Llc

Inventors

• Bredsguard Jakob

Classifications

• C11C3/003

  by esterification of fatty acids with alcohols (C11C3/02 takes precedence) · CPC title

• C10N2020/081

  Biodegradable compounds · CPC title

• C10M2207/2825

  used as base material · CPC title

• C07C69/604

  Polycarboxylic acid esters, the acid moiety containing more than two carboxyl groups · CPC title

• C07C69/675

  of saturated hydroxy-carboxylic acids · CPC title