| 摘要 |
<p>PURPOSE:To provide the blow container for a medieinal liquid which has high flexibility and good transparency, permits the seeing-through of the medicinal liquid housed therein, is formed to have a uniform thickness even by blow molding and has the sufficient heat resistance not to have whitening, devitrification and deformation even when the container is subjected to a sterilization treatment at a high temp. CONSTITUTION:This blow container for the medicinal liquid is formed by blow- molding of a three-layered parison consisting of an inside layer 7, an outside layer 8 and an intermediate layer 9. The inside layer 7 and the outside layer 8 are constituted of a linear polyethylene (A) having 1 to 15 pieces of the short chain branches of alpha-olefin and 0.0930 to 0.970g/cm<3> density. The intermediate layer 9 is a mixture composed of 95 to 50wt.% linear polyethylene (B) having 20 to 70 pieces of the short chain branches of the alpha-olefin and 0.890 to 0.925g/cm<3> density and 95 to 50wt.% high-pressure method polyethylene having 0.915 to 0.935g/cm<3> density and the density of the mixture is 0.890 to 0.925g/cm<3>. The thickness of the intermediate layer 9 is at least 40 to 80% of the thickness over the entire part.</p> |
