Composition for antifogging coating and coating film including the antifogging coating

Patent metadata

Field	Value
Publication number	US-2017183532-A1
Application number	US-201615262641-A
Country	US
Kind code	A1
Filing date	Sep 12, 2016
Priority date	Dec 28, 2015
Publication date	Jun 29, 2017
Grant date	—

Abstract

A composition for an antifogging coating includes isosorbide epoxy represented by Formula 1 below, a hardener, a hardening accelerator, and a silane coupling agent,

wherein n is 0.2 to 7.

First claim

What is claimed is:

1 . A composition for an antifogging coating, comprising:
isosorbide epoxy represented by Formula 1 below; a hardener; a hardening accelerator; and a silane coupling agent,

wherein n is 0.2 to 7.

2 . The composition according to claim 1 , wherein the hardener is a polyamine-based compound comprising active hydrogen.

3 . The composition according to claim 2 , wherein the hardener is one or more selected from ethylenediamine, trimethylenetetramine, tetraethylenepentamine polyamine, isophoronediamine, polypropylenediamine, triethylene glycol diamine and polyoxypropylenetriamine.

4 . The composition according to claim 2 , wherein a ratio of an equivalent weight of the active hydrogen in the hardener to an equivalent weight of the isosorbide epoxy is 0.7 to 0.95.

5 . The composition according to claim 1 , wherein the hardening accelerator is one or more of an imidazole-based compound and a tertiary amine-based compound.

6 . The composition according to claim 5 , wherein the imidazole-based compound is one or more selected from imidazole, 2-methylimidazole, 2-ethyl-4-methylimidazole and 1-cyanoethyl-2-ethyl-4-methylimidazole, and the tertiary amine-based compound is one or more selected from tributylamine, benzyldimethylamine, trimethylamine and benzyldimethylamine.

7 . The composition according to claim 1 , wherein the silane coupling agent is an epoxy silane-based compound.

8 . The composition according to claim 7 , wherein the epoxy silane-based compound is one or more selected from 2-(3,4 epoxycyclohexyl)ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropylmethyldiethoxysilane and 3-glycidylpropyltriethoxysilane.

9 . The composition according to claim 1 , comprising 30 to 50 parts by weight of the hardener, 0.1 to 3.0 parts by weight of the hardening accelerator and 10 to 30 parts by weight of the silane coupling agent, based on 100 parts by weight of the isosorbide epoxy.

10 . A coating film for antifogging formed of the composition according to claim 1 .

11 . The coating film according to claim 10 , wherein the coating film has a thickness of 1 to 100 μm.

Assignees

• Hyundai Motor Co Ltd
• Kukdo Chemical Co Ltd

Inventors

• Park Sung June
• Lee Hye Seung
• Jee Joong Hwi
• Park Chan Ho

Classifications

• C09D5/00

  Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title

• C08G59/686

  containing nitrogen · CPC title

• C09D163/00 Primary

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

• C08G59/504

  containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen · CPC title

• C08G59/26

  heterocyclic · CPC title