Patent ID: 8389001

Claim:
A precursor composition for a crosslinkable pressure-sensitive adhesive for skin, consisting of: i) an acrylic copolymer (copolymer A) comprising a (meth)acrylic acid alkyl ester as the main constituent component and 3-45 wt % diacetone acrylamide as an essential constituent component, and containing no free carboxyl groups; and ii) an acrylic copolymer (copolymer B) comprising a (meth)acrylic acid alkyl ester as the main constituent component and a primary amino group and/or carboxyhydrazide group on a side chain, and containing no free carboxyl groups, wherein the primary amino group and/or carboxyhydrazide group is present at a density of at least 2 per molecule of copolymer B and the primary amino group and/or carboxyhydrazide group in copolymer B is included at a density of one per 5-100 molecules of (meth)acrylic acid alkyl ester comonomer in copolymer B, wherein the molecular weight of copolymer B is at least 2000; wherein the proportion by weight of copolymer B with respect to copolymer A is 0.1-30:100, and wherein copolymers A and B are dissolved in a solvent.