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1. 发明授权

EP0908292B1 METHOD AND APPARATUS FOR PRODUCING A BLOW MOLDED ARTICLE 失效
标题翻译：方法和设备的生产吹塑成型品
公开(公告)号：EP0908292B1
公开(公告)日：2003-11-05
申请号：EP97922161.1
申请日：1997-05-26
申请人： IDEMITSU PETROCHEMICAL CO., LTD.
发明人： SUGAWARA, Minoru, Idemitsu Petrochemical Co., Ltd. , TADA, Katsuhiko, Idemitsu Petrochemical Co., Ltd. , OBARA, Tomoyuki, Idemitsu Petrochemical Co., Ltd. , HIRANO, Koki, Idemitsu Petrochemical Co., Ltd.
IPC分类号： B29C49/64 , B29C49/28 , B29C49/66 , B29C49/48 , B29C49/60 , B29C49/62
CPC分类号： B29C49/4823 , B29C33/10 , B29C49/04 , B29C49/041 , B29C49/60 , B29C49/62 , B29C49/66 , B29C2049/4608 , B29C2049/4626 , B29C2049/4641 , B29C2049/4676 , B29C2049/609 , B29C2049/6623 , B29C2049/6646 , B29K2023/12 , B29L2031/3058
摘要： A method for obtaining a relatively large-sized blow molded article superior in mold transfer properties such as surface gloss in a short forming cycle with good productivity by a blow molding using a simple facility. In particular, a method for producing a blow molded article comprising the steps of supplying between forming molds a molten parison formed from a crystalline resin, clamping the molds, blowing a pressurised fluid into the parison so that the parison is tightly secured to the forming surface of the molds and allowing the parison to be solidified, wherein the temperature of the forming surfaces of the molds when the parison is tightly secured thereto ranges from a temperature lower by 10 °C than a crystallizing temperature of the crystalline resin to a melting point of the resin, and wherein a coolant whose temperature is lower than a room temperature is introduced into the parison while the pressurised fluid is being blown in or after it has been blown in for cooling the parison, thereafter the parison being ejected from the molds. An apparatus for producing a blow molded article comprising a blow molding machine, forming molds for use with the blow forming machine for producing a blow molded article and each having gas vent holes with a diameter of 100 νm or less and at a pitch of 50 νm or less, and a means for introducing a coolant into the parison formed through the molds and discharging it from the parison.

2. 发明公开

EP0908292A1 METHOD AND APPARATUS FOR PRODUCING A BLOW MOLDED ARTICLE 失效
标题翻译： VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN VON BLASGEFORMTENGEGENSTÄNDEN
公开(公告)号：EP0908292A1
公开(公告)日：1999-04-14
申请号：EP97922161.1
申请日：1997-05-26
申请人： IDEMITSU PETROCHEMICAL CO., LTD.
发明人： SUGAWARA, Minoru, Idemitsu Petrochemical Co., Ltd. , TADA, Katsuhiko, Idemitsu Petrochemical Co., Ltd. , OBARA, Tomoyuki, Idemitsu Petrochemical Co., Ltd. , HIRANO, Koki, Idemitsu Petrochemical Co., Ltd.
IPC分类号： B29C49/64 , B29C49/28
CPC分类号： B29C49/4823 , B29C33/10 , B29C49/04 , B29C49/041 , B29C49/60 , B29C49/62 , B29C49/66 , B29C2049/4608 , B29C2049/4626 , B29C2049/4641 , B29C2049/4676 , B29C2049/609 , B29C2049/6623 , B29C2049/6646 , B29K2023/12 , B29L2031/3058
摘要： Provided is a method for producing blow moldings having a relatively large size through blow molding by use of a simple facility. Faithful mold-to-resin transfer of a surface such as a glossy surface is attained, and moldings can be obtained in shorter cycles with improved productivity. The method comprising the steps of feeding a melt parison of crystalline resin into the space between molds, clamping the molds, blowing a pressurized fluid into the interior of the parison so as to cause the parison to be into close contact with the inner surfaces of the molds and to solidify the parison, wherein, while the parison and the mold inner surfaces are in close contact, the temperature of inner surfaces of the molds is maintained at a temperature from a temperature 10°C lower than the crystallization temperature of the crystalline resin to the melting point of the resin, and the parison is removed from the molds after the parison is cooled through introduction thereinto or discharge therefrom, during or after blowing-in of the pressurized fluid, of a cooling medium not higher than room temperature. An apparatus comprises a blow molding machine; a forming mold which is used in combination with the blow molding machine for producing a blow molding, the forming mold having degassing pores having a diameter of 100 µm or less in the surface of the mold at intervals (a pitch) of 50 mm or less; and means for introducing and discharging a cooling medium into or from a parison formed through the mold.
摘要翻译：提供了一种通过使用简单的设备通过吹塑成型制造具有相对较大尺寸的吹塑成型体的方法。实现了诸如光泽表面之类的表面的真实模具到树脂的转移，并且可以以更短的周期获得模制品，并提高了生产率。该方法包括以下步骤：将结晶树脂的熔融型坯进料到模具之间的空间中，夹紧模具，将加压流体吹入型坯的内部，以使型坯与该型坯的内表面紧密接触模制并固化型坯，其中当型坯和模具内表面紧密接触时，模具内表面的温度保持在比结晶树脂的结晶温度低10℃的温度到树脂的熔点，并且在型坯通过引入其中冷却或从其中排出之后，在加压流体的吹入期间或之后将型坯从模具中除去，不得高于室温的冷却介质。一种装置包括吹塑机; 成型模具与吹塑成型机组合使用，用于吹塑成型，成形模具的模具表面的直径为100μm以下的脱气孔的间隔（间距）为50mm，或减; 以及用于将冷却介质引入和排出通过模具形成的型坯的装置。

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