| abstract |
A resin layer comprising a resin part (X) containing a hydrocarbon resin having a carbon atom in its main chain as a main component and a particle part (Y) containing fine particles containing silica particles as a main component, And the surface (α) of the resin layer on the side opposite to the side on which the base material or the release agent is provided has tackiness and the resin layer is composed of the layer (Xα) and the layer (Si) derived from a silicon atom and a carbon atom-derived (Si) -based layer from the surface (?) Side of the resin layer by using an energy dispersive X- , The intensity ratio in the layer X? Is less than 0.10, the intensity ratio in the layer Y 1 is not less than 0.10, and the surface (? ), The irregular concave portion To provide a pressure sensitive adhesive sheet. |