Coating compositions

摘要

A curable resin composition including (I) at least one thermoset resin composition; and (II) at least one hardener; wherein the powder coating has a balance of properties including a combination of high glass transition temperature and low water absorption.

主权项

1. A curable powder coating resin composition comprising (I) at least one thermoset resin composition; and (II) at least one hardener; wherein when the powder coating is cured, the resulting cured product has a combination of a high glass transition temperature of greater than about 150° C., when cured with dicyandiamide and a moisture absorption of less than 3.9 weight percent, wherein the thermoset resin composition comprises an epoxy resin represented by the following general Formula I: Ra is a hydrogen or methyl group; R1 and R2, independently from each other, each represents a hydrogen atom, a halogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; a nitrile group; a nitro group; a substituted or unsubstituted alkoxy group; X is a carbon atom; m is an integral number between 11 and 20; R3 and R4, independently from each other, each represents a hydrogen atom, a halogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n is an integer having a value from 0 to 10.