Epoxy resin hardener compositions and epoxy resin compositions containing such hardener compositions

Patent metadata

Field	Value
Publication number	US-9371415-B2
Application number	US-201514827704-A
Country	US
Kind code	B2
Filing date	Aug 17, 2015
Priority date	Jan 23, 2008
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

An epoxy resin hardener composition including a reaction product of (i) a compound having at least one vicinal epoxy group, and (ii) an amino alcohol; an epoxy resin composition including the epoxy resin hardener composition and a compound having at least one vicinal epoxy group; and a powder coating composition including particles of the epoxy resin hardener composition and particles of a compound having at least one vicinal epoxy group.

First claim

What is claimed is:

1. A solid amino functional hardener composition comprising a reaction product of:
a compound having at least one vicinal epoxy group; and
an amino alcohol including at least one alkanolamine, where a mole ratio of amine groups of the amino alcohol including the at least one alkanolamine is in excess of the epoxy groups of the compound having at least one vicinal epoxy group in the range of from 25:1 to 3:1.

2. The solid amino functional hardener composition of claim 1 , where the at least one alkanolamine includes an amino polyol.

3. The solid amino functional hardener composition of claim 1 , where the at least one alkanolamine is selected from the group consisting of monoethanolamine, 2-amino-2-hydroxymethyl-1,3-propanediol and 2-amino-2-methyl-1,3-propanediol.

4. The solid amino functional hardener composition of claim 1 , where the molecular weight of the at least one alkanolamine is from about 150 Da to about 10,000 Da.

5. The solid amino functional hardener composition of claim 1 , where the compound having at least one vicinal epoxy group comprises a compound having two vicinal epoxy groups.

6. The solid amino functional hardener composition of claim 1 , where the compound having at least one vicinal epoxy group comprises a compound having the following formula:

where n is 0 or more.

7. The solid amino functional hardener composition of claim 1 useful as a hardener for one or more of the compounds selected from epoxy-, isocyanate-, carboxylic acid-, vinyl- and acrylic-functional resins.

8. The solid amino functional hardener composition of claim 1 , where the composition is dispersible in water.

9. The solid amino functional hardener composition of claim 1 , where the composition has a softening point of from about 30° C. to about 150° C.

10. The solid amino functional hardener composition of claim 1 , where the amino alcohol includes a primary amine group.

11. An epoxy resin composition, the composition comprising: a compound having at least one vicinal epoxy group, the solid amino functional hardener composition of claim 1 , and an accelerator.

12. An epoxy resin composition, the composition comprising: a compound having at least one vicinal epoxy group, the solid amino functional hardener composition of claim 1 , and a heterocyclic nitrogen containing compound.

13. An epoxy resin composition, the composition comprising: a compound having at least one vicinal epoxy group, the solid amino functional hardener composition of claim 1 , and one or more compounds with a secondary amine group.

14. An epoxy resin composition, the composition comprising: a compound having at least one vicinal epoxy group, the solid amino functional hardener composition of claim 1 , and one or more compounds with a primary amine group.

Assignees

• Blue Cube Ip Llc

Inventors

• Gan Joseph
• Rosenthal Carola
• Eckert Matthieu M
• Kainz Bernhard
• Trottier Emile C

Classifications

• C08G59/184 Primary

  with amines · CPC title

• C09D5/03

  Powdery paints · CPC title

• C08G59/00

  Polycondensates containing more than one epoxy group per molecule (low-molecular-weight polyepoxy compounds C07); Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups · CPC title

• C09D163/00

  Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins · CPC title

• C08L63/00

  Compositions of epoxy resins; Compositions of derivatives of epoxy resins · CPC title