Molded container having wall composed of oriented resin blend

摘要

A molded container having a wall composed of a thermoplastic resin oriented in at least one direction on the wall face, wherein the container wall has a layer of a blend composed mainly of a plurality of melt-extrudable thermoplastic resins, each of which has a solubility parameter (Sp) of at least 9.5, at least one of said thermoplastic resins has an oxygen permeability lower than 5x10-11 ccxcm/cm2xsecxcmHg, said thermoplastic resins are chosen so that the difference ( DELTA Sp) of the solubility parameter in said thermoplastic resins is not greater than 4.5, the elongation of said resin blend is higher than the arithmetic mean ( epsilon ) of elongations of the respective thermoplastic resins, and wherein the container has a thermal shrinkability ( delta ) of at least 5% in the orientation direction of said container wall.