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    • 1. 发明授权
    • Extrusion blow molded articles
    • 挤出吹塑制品
    • US07025925B2
    • 2006-04-11
    • US10812203
    • 2004-03-29
    • Thomas Joseph PecoriniSam Richard TurnerGary Wayne Connell
    • Thomas Joseph PecoriniSam Richard TurnerGary Wayne Connell
    • B29C49/04B65D1/00
    • B29C49/0005B29C49/04B29K2067/00B29L2031/7126C08G63/199Y10T428/1352
    • Disclosed is a process for the manufacture of shaped articles by extrusion blow molding comprising the steps of (1) extruding a copolyester through a die to form a tube of molten copolyester; (2) positioning a mold having the desired finished shape around the tube of molten copolyester; and (3) introducing a gas into the tube of molten copolyester, causing the extrudate to stretch and expand to fill the mold; wherein the copolyester is a linear, copolyester having an inherent viscosity (IV) of at least about 0.7 dL/g measured at a temperature of 25° C. at 0.5 g/dL concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 and comprising: (1) a diacid component consisting essentially of 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues, naphthalenedicarboxylic acid residues, biphenyldicarboxylic acid residues or a combination of 2 or more of isophthalic, naphthalenedicarboxylic or bipheyldicarboxylic acid residues; and (2) a diol component consisting essentially of about 70 to 90 mole percent 1,4-cyclohexanedimethanol residues and about 30 to 10 mole percent neopentyl glycol residues; wherein the copolyester comprises 100 mole percent diacid component and 100 mole percent diol component. The process is particularly useful for the manufacture of bottles or carboys having and interior volume of about 2 to 50 liters.
    • 公开了一种通过挤出吹塑成型制造成形制品的方法,包括以下步骤:(1)通过模具挤出共聚酯以形成熔融共聚聚酯管; (2)将具有所需成品形状的模具定位在熔融共聚聚酯管上; 和(3)将气体引入熔融共聚酯的管中,使挤出物拉伸膨胀以填充模具; 其中所述共聚酯是具有至少约0.7dL / g的特性粘度(IV)为至少约0.7dL / g的线性共聚酯,其在25℃的温度下以0.5g / dL的浓度在对称四氯乙烷和具有重量的酚的溶剂混合物中测量 对称四氯乙烷与苯酚的比例为2:3,包括:(1)基本上由90至100摩尔%对苯二甲酸残基和0至约10摩尔%间苯二甲酸残基组成的二酸组分,萘二甲酸残基,联苯二羧酸残基或 2个或更多个间苯二甲酸,萘二羧酸或二硫代二羧酸残基的组合; 和(2)基本上由约70至90摩尔%的1,4-环己烷二甲醇残基和约30至10摩尔%的新戊二醇残基组成的二醇组分; 其中所述共聚酯包含100摩尔%的二酸组分和100摩尔%的二醇组分。 该方法对于制造具有约2至50升的内部容积的瓶子或者碳罐特别有用。