RELEASABLE LAYER, PRESSURE-SENSITIVE ADHESIVE MEMBER AND SEPARATOR

PURPOSE:To obtain a releasable layer excellent in the adhesion to a supporting base material so that it is hardly fallen off the material and also excellent in releasability from the bonding surface, and a pressure-sensitive adhesive member and a separator both having such releasable layers. CONSTITUTION:A releasable layer 1 comprising a film composed of a polymer layer 13 well-adherent to a supporting base material 2 and a releasability- imparting layer 11, a pressure-sensitive adhesive member having the releasable layer on one side of a supporting base material and a pressure-sensitive adhesive layer on the other side thereof, and a separator having the releasable layer or layers on one side or both sides of a supporting base material. Thus, there can be obtained those characteristically having an easily controllable adhesive force against the bonding surface while maintaining strong adhesion to the supporting base material, hence exhibiting a weak adhesive force against the bonding surface and a good releasability therefrom and having strong adhesion to the hardly bondable supporting base material so that they are scarcely fallen off the material.