HEAT-RESISTANT BIAXIALLY STRETCHED BLOW MOLDED BOTTLE AND PRODUCTION THEREOF

摘要

PURPOSE:To provide a mouth part having excellent heat resistance and good dimensional accuracy. CONSTITUTION:A heat-resistant biaxially stretched blow molded bottle has a mouth part 1 having a support ring 11 provided to the lower end thereof, the transfer part 2 continued to the mouth part 1, a shoulder part 3, a body part 4 and a bottom part 5. The mouth part 1 has a multilayered structure consisting of a polyester layer 14 and a heat-resistant resin layer 13 and the polyester layer 14 in the mouth part 1 other than the support ring 11 and the transfer part 2 is crystallized.