US Patent 7759400 Pressure-sensitive adhesive composition and skin patch

It is intended to provide a composition which has well-balanced pressure-sensitive adhesiveness and cohesive force as well as favorable application properties to the skin, and a patch which has the above-described characteristics and hardly peels off. This object can be achieved by providing a composition comprising an acrylic copolymer containing from 3 to 25% by weight of hydroxyethyl (meth)acrylate as a constituent, a plasticizer and a pseudo-crosslinking compound, wherein the ratio of the content of the plasticizer to the content of the pseudo-crosslinking compound ranges from 30:1 to 250:1, and a patch.