PHOTOCURABLE PRESSURE-SENSITIVE ADHESIVE SHEET LAMINATE, METHOD FOR MANUFACTURING PHOTOCURABLE PRESSURE-SENSITIVE ADHESIVE SHEET LAMINATE, AND METHOD FOR MANUFACTURING IMAGE DISPLAY PANEL LAMINATE

摘要

PROBLEM TO BE SOLVED: To provide a new photocurable pressure-sensitive adhesive sheet laminate, relating to a photocurable pressure-sensitive adhesive sheet laminate configured by laminating a resin member having an ultraviolet ray-blocking property that does not transmit ultraviolet rays and a photocurable pressure-sensitive adhesive sheet, the new photocurable pressure-sensitive adhesive sheet capable of achieving both step absorbability when an adherend surface of a lamination member has unevenness, and anti-foaming reliability after lamination.;SOLUTION: The photocurable pressure-sensitive adhesive sheet laminate is configured by laminating a resin member (X) having a light transmittance of 10% or less at a wavelength of 365 nm and a light transmittance of 60% or more at a wavelength of 405 nm, and a photocurable pressure-sensitive adhesive sheet (Y). The pressure-sensitive adhesive sheet (Y) has a monolayer or a multilayer structure having 2 or more layers, in which an adhesive layer Y1 on a surface on the monolayer or multilayer resin member (X) side has a gel fraction (referred to as a gel fraction X1 prior to light irradiation) of 0 to 60%, and has such a photocuring property that when the layer is irradiated with light at a wavelength of 405 nm from the outside of the resin member (X) through the resin member (X), the gel fraction increases by 10% or more as a difference in the gel fraction.;SELECTED DRAWING: None;COPYRIGHT: (C)2020,JPO&INPIT