Adhesive composition and preparation method thereof

Patent metadata

Field	Value
Publication number	US-12227676-B2
Application number	US-201917254167-A
Country	US
Kind code	B2
Filing date	Aug 30, 2019
Priority date	Aug 31, 2018
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

Provided is an adhesive composition including lysine, alpha ketoglutaric acid, and water, wherein the lysine and the alpha ketoglutaric acid are present in the form of an aqueous salt solution and do not form precipitates in the aqueous solution.

First claim

What is claimed is:

1. An adhesive composition comprising:
lysine, alpha ketoglutaric acid, and water,
wherein the lysine and the alpha ketoglutaric acid are present in the form of an aqueous salt solution and do not form precipitates in the adhesive composition.

2. The adhesive composition of claim 1 , wherein
a solid content in the adhesive composition is 70 parts by weight or less based on a total weight of the adhesive composition.

3. The adhesive composition of claim 1 , wherein
the sum of the respective contents of the lysine and the alpha ketoglutaric acid is in the range of 60 parts by weight to 100 parts by weight based on 100 parts by weight of the solid content in the adhesive composition.

4. The adhesive composition of claim 1 , further comprising
at least one solvent selected from a primary alcohol, a polyhydric alcohol, a diol, and a triol.

5. The adhesive composition of claim 4 , wherein
the solvent comprises: at least one monohydric alcohol selected from methanol, ethanol, propane-2-ol, butane-1-ol, pentane-1-ol, and hexadecane-1-ol) at least one polyhydric alcohol selected from ethane-1,2-diol, propane-1,2-diol, propane-1,2,3-triol, butane-1,3-diol, butane-1,2,3,4-tetraol, pentane-1,2,3,4,5-pentol, hexane-1,2,3,4,5,6-hexol, and heptane-1,2,3,4,5,6,7-heptol; at least one unsaturated aliphatic alcohol selected from prop-2-en-1-ol, 3,7-dimethylocta-2,6-dien-1-ol, and prop-2-yn-1-ol; at least one alicyclic alcohol selected from cyclohexane-1,2,3,4,5,6-hexol and 2-(2-propyl)-5-methylcyclohexane-1-ol; or a mixture thereof.

6. The adhesive composition of claim 1 , wherein
a mixing molar ratio of the lysine to the alpha ketoglutaric acid is in the range of 1.7:1 to 1:3.

7. The adhesive composition of claim 6 , further comprising a solvent selected from:
at least one monohydric alcohol selected from methanol, ethanol, propane-2-ol, butane-1-ol, pentane-1-ol, and hexadecane-1-ol;
at least one polyhydric alcohol selected from ethane-1,2-diol, propane-1,2-diol, propane-1,2,3-triol, butane-1,3-diol, butane-1,2,3,4-tetraol, pentane-1,2,3,4,5-pentol, hexane-1,2,3,4,5,6-hexol, and heptane-1,2,3,4,5,6,7-heptol;
at least one unsaturated aliphatic alcohol selected from prop-2-en-1-ol, 3,7-dimethylocta-2,6-dien-1-ol, and prop-2-yn-1-ol;
at least one alicyclic alcohol selected from cyclohexane-1,2,3,4,5,6-hexol and 2-(2-propyl)-5-methylcyclohexane-1-ol; or a mixture thereof.

8. An adhesive product comprising the adhesive composition of claim 1 .

9. An adhesive product comprising the adhesive composition of claim 6 .

10. An adhesive composition comprising
lysine, alpha ketoglutaric acid, and water, wherein
a mixing molar ratio of the lysine to the alpha ketoglutaric acid is in a range of 1.7:1 to 1:3 such that a precipitate does not form in the adhesive composition if the adhesive composition is stored at a temperature of −18° C. or greater and less than 40° C. for 14 days or longer.

11. A method of preparing an adhesive composition, the method comprising:
mixing lysine, alpha ketoglutaric acid, and water to prepare a mixture; and
stirring the mixture at a temperature of less than 40° C.,
wherein the respective contents of the lysine, the alpha ketoglutaric acid, and the water are adjusted such that precipitates of lysine and alpha ketoglutaric acid do not form in the adhesive composition.

12. The method of claim 11 , wherein
a mixing molar ratio of the lysine to the alpha ketoglutaric acid is in the range of 1.7:1 to 1:3.

13. The method of claim 11 , wherein
the mixture further comprises at least one solvent selected from a primary alcohol, a polyhydric alcohol, a diol, and a triol.

Assignees

• Cj Cheiljedang Corp

Inventors

• Hwang Ji Ho
• Yang Young Lyeol
• Oh Chang Yub
• Lee Chang Suk
• Na Kyung Su
• Moon Jun Ok

Classifications

• C09J11/06 Primary

  organic · CPC title

• C09J4/00 Primary

  Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16} · CPC title

• C09J7/20

  characterised by their carriers · CPC title

• C09J177/04

  Polyamides derived from alpha-amino carboxylic acids (C09J177/10 takes precedence) · CPC title

• C08G69/26

  derived from polyamines and polycarboxylic acids · CPC title