Patent ID: 9399695
Filing Date: 2016-07-26
CPC Classification: B32B,C08G,C09J,C09K,G02B,G02F

Claim Text:
1. A pressure-sensitive adhesive polarizer, comprising: a polarizing film or a polarizing device; and a pressure-sensitive adhesive layer to be attached on a liquid crystal panel, the pressure-sensitive adhesive layer being formed on one or both sides of the polarizing film or device, and comprising a cured pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive composition includes an interpenetrating polymer network in a cured state, wherein the pressure-sensitive adhesive composition comprises (A) an acrylic copolymer; (B) a multi-functional isocyanate hardener; (C) a multi-functional acrylate having a cyclic structure and (D) a photoinitiator, wherein an adhesion strength of the polarizer to alkali-free glass is 200 to 500 gf/25 mm, wherein the (A) acrylic copolymer comprises (meth)acrylic acid ester monomer; (meth)acrylic acid alkylene oxide adduct; and a monomer containing a hydroxy group, and wherein the (meth)acrylic acid alkylene oxide adduct is included in an amount of 2 to 15 parts by weight, relative to 100 parts by weight of the (A) acrylic copolymer.