Fatty acid derivatives of lignin and uses thereof

Patent metadata

Field	Value
Publication number	US-2016355535-A1
Application number	US-201615145962-A
Country	US
Kind code	A1
Filing date	May 4, 2016
Priority date	May 4, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

The present disclosure provides fatty acid derivatives of lignin with improved properties such as workability and other physical properties. These derivatives have the ability to form polymer blends with improved properties such as carbon fiber production and compatibilizers.

First claim

What is claimed is:

1 . A fatty acid derivative of lignin consisting essentially of a lignin and a fatty acid.

2 . The fatty acid derivative of claim 1 , wherein the fatty acid and the lignin are present in a mole ratio ranging from about 0.1:1.0 to about 4.0:1.0.

3 . The fatty acid derivative of claim 1 , wherein the fatty acid ester derivative is soluble in a non-polar solvent.

4 . The fatty acid derivative of claim 1 , wherein the fatty acid ester derivative is soluble in a polar aprotic solvent.

5 . The fatty acid derivative of claim 1 , wherein the fatty acid ester derivative is soluble in a polar protic solvent.

6 . The fatty acid derivative of claim 1 , wherein the fatty acid is an unsaturated fatty acid.

7 . The fatty acid derivative of claim 1 , wherein the fatty acid is a saturated fatty acid.

8 . The fatty acid ester derivative of claim 1 , wherein the fatty acid ester is a C4-C30 ester.

9 . The fatty acid derivative of claim 8 , wherein the C4-C30 ester is a C18 fatty acid ester, a linoleic acid ester, or an oleic acid ester.

10 . The fatty acid derivative of claim 1 , wherein the lignin and the fatty acid are present in a ratio of about 1.0 lignin to about 0.1-0.6 fatty acid.

11 . The fatty acid derivative of claim 1 , wherein the lignin and the fatty acid are present in a ratio of about 1.0 lignin to about 0.2-0.5 fatty acid.

12 . The fatty acid derivative of claim 1 , wherein the lignin and the fatty acid are present in a ratio of about 1.0 lignin to about 0.2 to 0.4 fatty acid.

13 . The fatty acid derivative of claim 1 , wherein the lignin and the fatty acid are present in a ratio of about 1.0 lignin to about 0.3 to 0.4 fatty acid.

14 . The fatty acid derivative of claim 1 , wherein the fatty acid is a fatty acid of phosphatidylethanolamine, a fatty acid of soybean lecithin, or an unsaturated fatty acid of egg lecithin.

15 . The fatty acid derivative of claim 1 , wherein the lignin is a hardwood lignin.

16 . The fatty acid derivative of claim 1 , wherein the lignin is a softwood lignin.

17 . The fatty acid derivative of claim 1 , wherein the lignin is from a non-wood plant material.

18 . The fatty acid derivative of claim 17 , wherein the non-wood plant material is an energy crop agricultural waste, a food crop agricultural waste or a grass.

19 . The article of manufacture of claim 19 , wherein the thermoplastic polymer is a natural or synthetic polymer.

20 - 29 . (canceled)

30 . A method of improving the workability of a lignin which comprises esterifying the lignin with an activated fatty acid under suitable conditions so as to form a fatty acid derivative of lignin consisting essentially of the lignin and the fatty acid.

31 - 47 . (canceled)

Assignees

• Univ North Carolina State

Inventors

• Venditti Richard A
• Pawar Siddhesh N
• Ayoub Ali
• Chang Hou-Min
• Jameel Hasan

Classifications

• C07G1/00 Primary

  Low-molecular-weight derivatives of lignin (high-molecular-weight derivatives of lignin {C08H6/00}) · CPC title