Patent ID: 8033395

Claim:
A patch package structure comprising a patch and a packaging member housing the patch, wherein the patch comprises a support and an adhesive layer formed on at least one surface of the support, the adhesive layer comprises an organic liquid component, the packaging member comprises a first package, the first package comprises an acrylonitrile resin layer, a moisture-absorbing layer formed on the acrylonitrile resin layer, and a moisture impermeable layer formed on the moisture-absorbing layer, the acrylonitrile resin layer consists of a copolymer consisting of 50-90 weight percent of acrylonitrile, 2-12 weight percent of butadiene and 8-38 weight percent of an alkyl (meth)acrylate wherein the alkyl of the alkyl (meth)acrylate has 1 to 6 carbon atoms, and wherein the total content of acrylonitrile, butadiene and alkyl (meth)acrylate is 100 weight percent, and the acrylonitrile resin layer is provided on the proximal side of the patch.