Adhesive composition for medical use, patch for medical use, and method for producing the composition

Abstract

An adhesive composition for medical use of the present invention includes an acrylic copolymer, a medicament having a carboxyl group, and a base, the acrylic copolymer is prepared by copolymerization of a monomer mixture containing 0.1 to 2 mass % of an ethylenically unsaturated carboxylic acid monomer as a monomer A, 58 to 99.9 mass % of an alkyl(meth)acrylate ester having an alkyl group of 4 to 12 carbon atoms as a monomer B, 30 mass % or less of an alkyl(meth)acrylate ester having 1 to 3 carbon atoms as a monomer C, and 30 mass % or less of a monomer having an ethylenically unsaturated group other than those of the monomers A to C (the total of monomers A to D is taken as 100 mass %) as a monomer D, and the content of sulfuric acid in the acrylic copolymer is 700 ppm by mass or less.

Dependencies are inferred from the claim text.