Provided are a barrier laminate, a gas barrier film containing the barrier laminate and a substrate film, a laminate film containing the gas barrier film, an adhesive layer and a sealant film, and an infusion solution bag containing the laminate film, all of which involve a barrier laminate containing a first organic layer, an inorganic layer and a second organic layer, in this order, wherein: the second organic layer is a layer formed by curing a polymerizable composition directly coated onto the inorganic layer surface； the polymerizable composition contains a urethane-skeleton acrylate polymer； the urethane-skeleton acrylate polymer has a structure containing an acrylic main chain and a side chain which contains a urethane polymer unit or a urethane oligomer unit； and the side chain has an acryloyl group at an end thereof.本發明係關於一種輸液袋，包含：阻擋性層疊體，含有上述阻擋性層疊體和基材膜的阻氣膜，含有上述阻氣膜、黏著層和密封膜的層疊膜，以及上述層疊膜；所述阻擋性層疊體是依次包含第一有機層、無機層、及第二有機層的阻擋性層疊體，第二有機層是利用直接塗布在上述無機層表面的聚合性組合物固化而形成的層，上述聚合性組合物含有胺基甲酸酯骨架丙烯酸酯聚合物，上述胺基甲酸酯骨架丙烯酸酯聚合物具有包含丙烯酸類主鏈、及含有胺基甲酸酯聚合物單元或胺基甲酸酯低聚物單元的側鏈的結構，上述側鏈在末端具有丙烯醯基。
