Abstract: A blood storage container includes a container main body made of a resin composition incorporating, per 100 parts by mass of polyvinyl chloride, 30 to 70 parts by mass of a composite plasticizer combining a first plasticizer and a second plasticizer, the first plasticizer being di-isononyl-cyclohexane-1,2-dicarboxylate, the second plasticizer being a citrate, the blending ratio between the first plasticizer and the second plasticizer in the composite plasticizer being 15/85 to 93/7.

Abstract: There is a disclosure of a method and a container for storing a blood or blood component, including a sheet material having a plurality of layers and wherein the layers are adhered to each other, at least a portion of the layer which contacts blood or blood components is composed of a block copolymer having a micro-phase separating structure. In accordance with the present invention, there is provided a container which has excellent properties in relation to the storage of platelet, gas permeability and mechanical strength. Also, there is a disclosure of a method and a tube for transfusing blood or a blood component, including a tube material having a plurality of the same layers as the above.

Abstract: A medical device produced by molding a composition comprising (I) 10 to 50% by weight of a polyolefin resin (II) 1 to 89% by weight of a hydrogenated diene polymer obtained by hydrogenating not less than 90 mol % of a butadiene moiety of a linear or branched copolymer consisting of a polybutadiene block segment (C) having a 1,2-vinyl bond content of not more than 20 mol % and a block segment (D) of either polybutadiene or a vinyl aromatic compound-butadiene copolymer whose butadiene moiety has a 1,2-vinyl bond content in the range of from 25 to 95 mol % and having a block structure represented by C-(D-C).sub.n or (C-D).sub.