Patent ID: 8609239

Claim:
A release film comprising a base film and a polymer layer on one side of the base film: wherein the polymer layer comprises a (meth)acrylate polymer component and a silicone polymer component, wherein the silicone polymer component is 0.001-10 parts by mass with respect to 100 parts by mass of the (meth)acrylate polymer component; wherein a part of a surface of the (meth)acrylate polymer component is covered by the silicone polymer component on the side opposite the base film; wherein the silicone polymer component is a modified silicone oil polymer that has been modified with a (meth)acryloyl and/or vinyl group; and wherein the polymer layer is formed by a process comprising: applying a coating solution onto the base film, wherein the coating solution comprises a photopolymerization initiator, an organic solvent, the (meth)acrylate polymer component, and the silicone oil to form a precursor layer, wherein the (meth)acrylate polymer component and the silicone oil are mutually immiscible; and irradiating, the precursor layer to form a polymer layer on the base film.