CONTAINER MADE OF SYNTHETIC RESIN HAVING EXCELLENT BARRIER PROPERTIES

摘要

There is provided a synthetic resin container product with high barrier properties, in which white opacity is not generated in the non-stretched part in spite of a long-term storage of the product. A PET bottle comprises base layers 11 composed of PET and a barrier layer 12 with lower gas permeability than that of the base layers 11. The barrier layer 12 contains an amorphous polyamide having meta-xylene isophthalamide structure and hexamethylene isophthalamide structure. As the amorphous polyamide, a copolyamide of a copolymer of meta-xylene diamine and isophthalic acid (MXDI) and a copolymer of hexamethylene diamine and isophthalic acid (6I) is used and the content rate of the amorphous polyamide in the barrier layer 12 is 15 weight percentage or more and 25 weight percentage or less.