PRESSURE SENSITIVE ADHESIVE SHEET AND LAMINATE

摘要

PROBLEM TO BE SOLVED: To provide a pressure sensitive adhesive sheet 20 used for bonding a front transparent plate 70 having a stepped portion 72, and a flexible film 30, the pressure sensitive adhesive sheet 20 seldom causing deformation of the film form in vicinity of the stepped portion.SOLUTION: A pressure sensitive adhesive sheet 20 preferably has a loss tangent tan δ of 1.0 or more at 80°C. The pressure sensitive adhesive sheet preferably has a storage modulus G' of 50kPa or more at 25°C. Such an adhesive agent as includes an acrylic base polymer is preferably used as a main component composing the pressure sensitive adhesive sheet. The acrylic base polymer preferably has weight average molecular weight of 800 thousand or less.