A PRESSURE-SENSITIVE ADHESIVE SHEET, A PREPARATION METHOD THEREOF, AN OPTICAL FILTER AND A PLASMA DISPLAY PANEL

摘要

PURPOSE: A pressure-sensitive adhesive sheet is provided to ensure excellent high-temperature stability, adhesion with glass, reworkability and adhesion with a base through the reaction of a hydroxyl group of a base film and an isocyanate-based compound included in the adhesive layer. CONSTITUTION: A pressure-sensitive adhesive sheet comprises a base film containing a corona treatment layer on one surface or both surfaces; a carboxyl group-containing acrylic copolymer which is formed on the corona treatment layer of the base film; an adhesive layer containing a polyfunctional isocyanate-based compound. The base film is a polyester film. The average molecular weight of the acrylic copolymer is 500,000-3,000,000.