Ethleneimine polymer and method for producing same

Patent metadata

Field	Value
Publication number	US-10370494-B2
Application number	US-201415519675-A
Country	US
Kind code	B2
Filing date	Oct 17, 2014
Priority date	Oct 17, 2014
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and is unlikely to form a gel-like film, and a method for producing the same. An ethyleneimine polymer, wherein a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more, a degree of dispersion of the ethyleneimine polymer is greater than 3.0 and 5.0 or less, and a water content in the ethyleneimine polymer is from 3 to 35% by weight.

First claim

The invention claimed is:

1. An ethyleneimine polymer, wherein
a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more,
a degree of dispersion of the ethyleneimine polymer is 3.1 or more to 4.0 or less, and a water content in the ethyleneimine polymer is from 3 to 10% by weight.

2. A method for producing an ethyleneimine polymer, the method comprising:
polymerizing ethyleneimine under a temperature condition of higher than 90° C. and 150° C. or lower in the presence of water at from 1.0 to 40% by mass with respect to 100% by mass of the ethyleneimine and a catalyst at from 0.3 to 5% by mass with respect to 100% by mass of the ethyleneimine,
wherein a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more,
a degree of dispersion of the ethyleneimine polymer is 3.1 or more to 4.0 or less, and a water content in the ethyleneimine polymer is from 3 to 10% by weight.

3. The method for producing an ethyleneimine polymer according to claim 2 , wherein
the catalyst is
a water-soluble organic compound having at least one halogen element and a hydrophilic substituent or
a water-soluble inorganic acid containing a halogen element.

4. The method for producing an ethyleneimine polymer according to claim 2 , further comprising adjusting a water content after the polymerization.

5. The method for producing an ethyleneimine polymer according to claim 2 , wherein a method for adding the catalyst is continuous addition.

6. An adhesion promoter for film printing ink comprising:
the ethyleneimine polymer according to claim 1 .

7. The ethyleneimine polymer according to claim 1 , wherein the number average molecular weight (Mn) is 19,000 or more.

8. The ethyleneimine polymer according to claim 1 , wherein the number average molecular weight (Mn) is 25,000 or more.

9. The ethyleneimine polymer according to claim 1 , wherein the number average molecular weight (Mn) is 50,000 or less.

10. The ethyleneimine polymer according to claim 1 , wherein the number average molecular weight (Mn) is 45,000 or less.

11. The ethyleneimine polymer according to claim 1 , wherein the number average molecular weight (Mn) is 40,000 or less.

12. The ethyleneimine polymer according to claim 1 , wherein the number average molecular weight (Mn) is 13,969 or more and the degree of dispersion is 3.4 or less.

13. The ethyleneimine polymer according to claim 1 , wherein the water content is 4% by weight or more.

14. The ethyleneimine polymer according to claim 1 , wherein the water content is 5% by weight or more.

Assignees

• Nippon Catalytic Chem Ind

Inventors

• Suzuki Seiichi
• Kasahara Taisuke

Classifications

• C09D11/106

  containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09D11/037

  characterised by the pigment · CPC title

• C09D11/03

  characterised by features other than the chemical nature of the binder · CPC title

• C08G73/0206

  Polyalkylene(poly)amines · CPC title

• C08G73/0213 Primary

  Preparatory process · CPC title