JPS6340654B

PURPOSE:To obtain the titled bottle excellent in temperature resistance, stiffness and shock resistance, by a method wherein a part forming the neck is heated at the crystallization temperature and stretched, being molded to the neck by engaging it with a metal mold, and the molded preform is biaxia...

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Bibliographische Detailangaben
Hauptverfasser:	HIRATA SHUNSAKU, SHIMOJIMA KOHEI, TAKAKUSAKI NOBUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the titled bottle excellent in temperature resistance, stiffness and shock resistance, by a method wherein a part forming the neck is heated at the crystallization temperature and stretched, being molded to the neck by engaging it with a metal mold, and the molded preform is biaxially stretched. CONSTITUTION:A part 11 forming the neck of closed end parison 10 is heated at a crystallization temperature of polyethylene terephthalate with a heating mechanism 12, and the part forming the neck 11 is mechanically stretched by clamping with clamps 13 and 14. Then, the charge to the concave part 16 of a female force 15 is carried out with the female force 15 and a plunger 17, and the stretching orientation of polyester to the axial direction and peripheral direction is carried out at the same time. After preheating the parison, stretching blow molding is carried out.