One-component curable resin composition

Patent metadata

Field	Value
Publication number	US-10144799-B2
Application number	US-201414913431-A
Country	US
Kind code	B2
Filing date	Aug 18, 2014
Priority date	Aug 23, 2013
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A one-component curable resin composition that does not contain an isocyanate compound, comprised of uniformly blended (A) a compound having two or more epoxy groups within a molecule, (B) a compound having two or more thiol groups within a molecule, and (C) an imidazole compound of formula (I), wherein the component (C) exists in the form of liquid.

First claim

What is claimed is:

1. A one-component curable resin composition that does not contain an isocyanate compound, comprised of uniformly blended (A) a compound having two or more epoxy groups in a molecule, (B) a compound having two or more thiol groups in a molecule, (C) an imidazole compound expressed by the following formula (I), wherein the component (C) is existing in the form of liquid, and (D) at least one acidic compound selected from phosphorous acid, a phosphorous acid monoester, a phosphorous acid diester, a borate compound, a titanate compound, an aluminate compound and a zirconate compound;

wherein m is 1, n is an integer from 1 to 6, R 1 , R 2 and R 3 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms, R 4 is —CH 2 CH 2 COO—, R 5 is an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms when n is 1, and a hydrocarbon group having 1 to 20 carbon atoms when n is an integer from 2 to 6.

2. The one-component curable resin composition according to claim 1 , wherein said at least one acidic compound of component (D) is selected from phosphorous acid, a phosphorous acid monoester and a phosphorous acid diester.

3. The one-component curable resin composition according to claim 1 , wherein said at least one acidic compound of component (D) is a borate compound.

4. The one-component curable resin composition according to claim 1 , wherein said at least one acidic compound of component (D) is a titanate compound.

5. The one-component curable resin composition according to claim 1 , wherein the molar ratio of the component (D) is 0.05 to 3.5 relative to 1 mole of imidazole group in the imidazole compound of the aforementioned component (C).

6. The one-component curable resin composition according to claim 1 , wherein the component (B) is a compound selected from: trimethylol propane tris(3-mercapto butyrate), pentaerythritol tetrakis(3-mercapto butyrate), dipentaerythritol hexakis(3-mercapto propionate), 1,3,5-tris(3-mercapto butyl oxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-tris(3-mercapto propyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione and 1,3,5-tris(3-mercapto propionyloxy)-ethyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

7. An epoxy resin cured material obtained by heating the one-component curable resin composition according to claim 1 .

8. An article, which contains the one-component curable resin composition according to claim 1 .

9. An article obtained by curing the one-component curable resin composition according to claim 1 .

Assignees

• Adeka Corp

Inventors

• Ogawa Ryo
• Matsuda Takuya

Classifications

• C08G59/245

  aromatic · CPC title

• C08G59/66 Primary

  Mercaptans · CPC title

• C08G59/56

  together with other curing agents · CPC title

• C08G59/5073

  having two nitrogen atoms in the ring · CPC title

• C08G59/22

  Di-epoxy compounds · CPC title