Patent ID: 8685204
Filing Date: 2014-04-01
Classification: C08F,C08K,C08L,C09J,G02F,Y10T

Abstract:
1. A method for peeling a pressure-sensitive adhesive optical film from an optical film-carrying glass substrate comprising a glass substrate and the pressure-sensitive adhesive optical film bonded thereto, comprising: exposing the optical film-carrying glass substrate to an environment at a temperature of 40 to 98° C. and a relative humidity of 60 to 99% for three minutes or more, wherein, subsequent to said three minutes or more, the pressure-sensitive adhesive optical film is bonded to the glass substrate with an adhesive strength of 10 N/25 mm width or less, and wherein, prior to said three minutes or more, the pressure-sensitive adhesive optical film is bonded to the glass substrate with an adhesive strength of 20 N/25 mm width or more; and then peeling the pressure-sensitive adhesive optical film from the glass substrate under the environment, wherein the pressure-sensitive adhesive optical film has a pressure-sensitive adhesive layer made from an organic solvent-based pressure-sensitive adhesive composition comprising: