Patent ID: 9025279
Filing Date: 2015-05-05
Classification: B32B,G11B,Y10T

Abstract:
1. A pressure-sensitive adhesive sheet comprising: a base including a metal layer, a first plastic film layer A, and a second plastic film layer B, the metal layer being positioned between the first plastic film layer A and the second plastic film layer B; and a pressure-sensitive adhesive layer on a surface of the second plastic film B, wherein the metal layer has a thickness of 2 μm to 15 μm, a total of a thickness Ta of the first plastic film layer A and a thickness Tb of the second plastic film layer B is within a range of 25 μm to 70 μm, wherein the base has a total thickness of 40 μm to 90 μm, the thickness Ta of the first plastic film layer A is larger than the thickness Tb of the second plastic film layer B, a ratio of the thickness Ta of the first plastic film layer A to the thickness Tb of the second plastic film layer B is within a range of 1.5 to 7.0, and the thickness of the metal layer is less than the thickness Tb of the second plastic film layer.