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    • 81. 发明专利
    • Multi-layer container
    • 多层容器
    • JP2011037498A
    • 2011-02-24
    • JP2009188396
    • 2009-08-17
    • Mitsubishi Gas Chemical Co Inc三菱瓦斯化学株式会社
    • KATO TOMONORI
    • B65D65/40B32B27/00B32B27/32B65D81/24C08K5/098C08K5/103C08K5/20C08L77/02C08L77/06
    • PROBLEM TO BE SOLVED: To provide a multi-layer container having a gas-barrier property and transparency suitable for a packaging material of the kind of food that requires heat sterilization.
      SOLUTION: The multi-layer container has a structure of three or more layers laminated in sequence from an inner layer to an outer layer: a layer (X) composed mainly of polypropylene, an adhesive layer (Y) formed of adhesive thermoplastic resin, and a gas barrier layer (Z) formed of a polyamide resin composition (P) while the polyamide resin composition (P) comprising the polyamide resin composition (M) of 80 to 99.9 mass% which is composed of: polyamide resin (A) of 60 to 90 mass% having diamine unit including 70 mol% or more of a metaxylenediamine unit and a dicarboxylic acid unit including 70 mol% or more of an adipic acid unit; and a polyhexamethylene terephthalate amide/polyhexamethylene isophthalate amide copolymer (B) of 40 to 10 mass%, and aliphatic polyamide resin (C) of 20 to 0.1 mass%.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种具有适合于需要加热灭菌的食品的包装材料的阻气性和透明性的多层容器。 解决方案:多层容器具有从内层到外层依次层叠的三层以上的结构:主要由聚丙烯构成的层(X),由粘合性热塑性塑料形成的粘合层(Y) 树脂和由聚酰胺树脂组合物(P)形成的阻气层(Z),而由聚酰胺树脂组合物(A)组成的聚酰胺树脂组合物(M)为80〜99.9质量%的聚酰胺树脂组合物(P) )为60〜90质量%,含有70摩尔%以上的间二甲苯二胺单元的二胺单元和含有70摩尔%以上己二酸单元的二羧酸单元; 和40〜10质量%的聚对苯二甲酸己二胺酯/间苯二甲酸戊二醇酯酰胺共聚物(B)和20〜0.1质量%的脂肪族聚酰胺树脂(C)。 版权所有(C)2011,JPO&INPIT