Patent ID: 7976865

Claim:
A medical tape preparation comprising a pressure-sensitive adhesive layer and a release liner laminated in that order on one side of a support, wherein the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive that is a mixture of two different pressure-sensitive adhesives: (A) a pressure-sensitive adhesive polymer A comprising a copolymer whose constituent components are 2-acetoacetoxyethyl methacrylate ester and one or more vinyl monomer selected from alkyl (meth)acrylate esters with C 4-10 alkyl groups, methyl methacrylate, diacetoneacrylamide, tetraethyleneglycol di(meth)acrylate, hexaethyleneglycol di(meth)acrylate, or 2-hydroxyethyl (meth)acrylate ester; and (B) a pressure-sensitive adhesive polymer B comprising a copolymer different from pressure-sensitive adhesive polymer A, whose constituent components are an alkyl (meth)acrylate ester with a C 4-10 alkyl group and one or more vinyl monomer selected from methyl methacrylate, diacetoneacrylamide, 2-hydroxyethyl (meth)acrylate ester, N-vinyl-2-pyrrolidone, or vinyl acetate, wherein the proportion of the pressure-sensitive adhesive polymer A as component (A) and the pressure-sensitive adhesive polymer B as component (B) is 1:9-4:1.