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    • 23. 发明公开
    • 다층 병
    • 多层瓶
    • KR1020080083655A
    • 2008-09-18
    • KR1020087016226
    • 2007-01-15
    • 미츠비시 가스 가가쿠 가부시키가이샤
    • 미타데라준마루야마가츠야마루오가즈노부가토도모노리
    • B32B1/02B32B27/34B32B27/36B65D1/00
    • B32B1/02B29B2911/14053B29B2911/14066B29B2911/1408B29B2911/14093B29B2911/1412B29B2911/14126B29B2911/14146B29B2911/14153B29C49/06B29C49/221B29K2067/00B32B27/08B32B27/34B32B27/36B65D1/0215C08L77/00C08L77/06C08L2205/02Y10T428/1352Y10T428/1379C08L2666/20
    • A multi-layer bottle which comprises outermost and innermost layers made mainly of a polyester (A) and at least one barrier layer lying between the outermost and innermost layers, wherein the polyester (A) is a thermoplastic polyester resin obtained by polymerizing a dicarboxylic acid component containing at least 80% by mole of terephthalic acid with a diol component containing at least 80% by mole of ethylene glycol and the barrier layer comprises a polyamide (B) and a polyamide (C). The polyamide (B) is one obtained by polycondensing a diamine component containing at least 70% by mole of m-xylylenediamine with a dicarboxylic acid component containing at least 70% by mole of an E,i-straight-chain aliphatic dicarboxylic acid having 4 to 20 carbon atoms, while the polyamide (C) has a saturation moisture content higher than that of the polyamide (B) as determined at 23°C, 50%RH and 1atm and is contained in an amount of 20% by weight or below based on the weight of the barrier layer. Since the bottle little causes ply separation due to falling or impact, it is not necessary to restrict the shape of the bottle to one having fewer depressions, projections, or crooks for the purpose of inhibiting ply separation. Thus, the bottle has high design freedom.
    • 一种多层瓶,其包括主要由聚酯(A)制成的最外层和最内层,以及位于最外层和最内层之间的至少一层阻隔层,其中聚酯(A)是通过聚合二羧酸得到的热塑性聚酯树脂 含有至少80摩尔%对苯二甲酸的组分与含有至少80摩尔%乙二醇的二醇组分,阻隔层包含聚酰胺(B)和聚酰胺(C)。 聚酰胺(B)是将含有至少70摩尔%的间苯二甲胺的二胺成分与含有至少70摩尔%的具有4个以上的间苯二甲酸的E,i-直链脂肪族二羧酸的二羧酸成分缩聚得到的聚酰胺 至20个碳原子,而聚酰胺(C)的饱和水分含量高于在23℃,50%RH和1atm下测定的聚酰胺(B)的饱和含水量,并且其含量为20重量%以下 基于阻挡层的重量。 由于瓶子由于坠落或冲击而导致层层分离,所以不必将瓶子的形状限制在具有较少凹陷,凸起或弯曲部分的形状,以抑制层间分离。 因此,瓶子具有高的设计自由度。