Patent ID: 8945668
Filing Date: 2015-02-03
Classification: C08G,C08L,C09K,Y10T

Abstract:
1. A method for preparing a transparent substrate for flexible display, comprising: preparing a phenoxy resin composition comprising phenoxy resin of Formula (I): wherein n value is from 35 to 400, inclusive, wherein an end of the phenoxy resin comprises one or more groups selected from the group consisting of an epoxy group, a hydroxyl group, an amine group, a fluorine group, a siloxane group, and an amide group, an energy-ray curable acrylic oligomer or acrylic polymer resin, a photoinitiator selected from the group consisting of benzophenone, acetophenone, dibenzyl, diacetyl, diphenyl sulfide, azobisisobutyronitrile and a mixture thereof, and a crosslinking agent selected from the group consisting of melamine, urea-formaldehyde, isocyanate functional prepolymer, a phenolic curing agent, an amino-group curing agent, and a mixture thereof; forming on a release film the phenoxy resin composition into a film or sheet having a thickness of from about 25 to about 1,000 microns by a solvent casting or melt extrusion method, wherein the film or sheet is used to fabricate a flexible plastic substrate capable of substituting for a glass substrate used in an optical device substrate or a Flat Panel Display (FPD) substrate, a color filter substrate, or a substrate for touch screen panel; curing the phenoxy resin composition by ultraviolet light; and removing the release film.