Patent ID: 9109141
Filing Date: 2015-08-18
Classification: B32B,C09J,G02F,G06F,Y10T

Abstract:
1. A laminate, comprising: a protective panel body; a transparent adhesive sheet laminated on to a back surface of the protective panel body; and a touch panel laminated on to a back surface of the transparent adhesive sheet; wherein: the protective panel body has a thickness of greater than 0.8 mm; the protective panel body comprises glass; the transparent adhesive sheet comprises: the first adhesive layer and the second adhesive layer are arranged so that no outgas barrier layer is provided between the first adhesive layer and the second adhesive layer; the first and second adhesive layers exhibit different viscoelastic behaviors; the first and second adhesive layers are integrally laminated; either the first adhesive layer or the second adhesive layer comprises a composition comprising an acrylic acid ester polymer, a multifunctional (meth)acrylate cross-linking agent having more than two(meth) acryloyl groups and a reaction initiator; and a dynamic shear storage modulus G′ of the transparent adhesive sheet is within the ranges below when measured with a 1 Hz frequency temperature dispersion: G′(20° C.) is 2×10 G′(150° C.) is 1×10