Patent ID: 9683138
Date: 2017-06-20
CPC Classifications: B32B,C09J,G11B

Claim:
1. A pressure-sensitive adhesive sheet comprising: a pressure-sensitive adhesive layer having an adhesive surface on a rear side thereof, the adhesive surface being attached to an adherend; and a base including a metal layer disposed on a front side with respect to the adhesive layer and a resin layer disposed on a front side with respect to the metal layer, wherein a product of an initial elastic modulus of the base and a total thickness of the base is 3000 N/mm or less, and a separation distance is 2 mm or less, the separation distance is measured with a peel test with a constant load as follows: a test piece of the pressure-sensitive adhesive sheet having a width of 10 mm and a length of 100 mm is attached to a surface of a test plate made of stainless steel plate such that the adhesive surface is attached to the surface of the test plate and then, the test plate is left standing at a temperature of 23° C. for twenty four hours and then, a load of 100 gf is applied to one end of a length dimension of the test piece vertical to the surface of the test plate and a separation distance of the test piece is measured after one hour.