Biaxial stretch blow molding bottle and its primary molding

Patent Name Biaxially Stretch Blow Molded Bottle Body and Primary Molding Product Patent Applicant Co., Ltd. Yoshino Industry Co., Ltd. Master Applicant Address Tokyo, Japan Inventor Uesugi Daisuke; Hashimoto Akio; Suzuki Masato; Shimura Harumi Application (patent) No. 03800198.5 Date of application 2003.01.29 Approval date Approval notice No. 1507402 Date of approval announcement 2004.06.23 Instruction CD-ROM number D0425 Main classification number B65D1/02 Classification number B65D1/02; B29C49/08; B29C49/22 Division Original application number SUMMARY OF THE INVENTION The purpose of the present invention is to solve the influence of misalignment of the gas barrier material layer caused by the co-injection operation of the PET resin layer and the gas barrier material layer, the opening due to thermal crystallization caused by the provision of the gas barrier material layer. Problems such as reduced dimensional accuracy of forming or delamination at the bottom. The present invention is a biaxially stretch blow molded bottle body in which a gas barrier material layer 3 is laminated in a PET resin layer 2, provided with a screw 8 at an upper portion of a bottle mouth portion 4 and located on the screw 8 A biaxially stretch blow molded bottle body of a functional portion 5 of a lower stop ring 6 and a neck ring 7 at a lower end of the bottle mouth portion 4; wherein the uppermost end of the leading edge 3a of the gas barrier material layer 3 is provided therein. The position of the bottle mouth part 4 in the center part of the stopper ring 6 which does not reach the functional part 5 which comprises the bottle-opening part 4 is fixed, and the thermal crystallization of the bottle neck part 4 is performed, and it is not affected by the functional part 5 of the bottle mouth part 4 There is the effect of shrinkage deformation caused by the gas barrier material layer 3 . Sovereignty Clause 1. A biaxially stretch blow molded bottle is a gas barrier in which at least one or more layers are laminated in a resin layer (2) mainly composed of polyethylene terephthalate resin. The material layer (3) is provided with a screw (8) located at the upper part of the bottle mouth (4') and a functional part (5') of the stop ring (6) located at the lower part of the screw (8), and A biaxially stretch blow molded bottle at the neck ring (7) at the lower end of the mouth (4') is characterized by the fact that the front (3a) of the gas barrier material layer (3) is the most The upper end is set to a position not reaching the bottle mouth (4') at the center of the stopper ring (6), and the bottle mouth (4') is subjected to thermal crystallization.