METHOD TO MAKE SINGLE-LAYER PET BOTTLES WITH HIGH BARRIER AND IMPROVED CLARITY
    4.
    发明授权
    METHOD TO MAKE SINGLE-LAYER PET BOTTLES WITH HIGH BARRIER AND IMPROVED CLARITY 无效
    工艺生产具有高阻隔性的单层PET瓶和改进Clarity功能

    公开(公告)号:EP1663630B1

    公开(公告)日:2009-12-02

    申请号:EP04780147.7

    申请日:2004-08-05

    Abstract: The present invention comprises a blend of polyester and a partially aromatic polyamide with an ionic compatibilizer and a cobalt salt. This blend can be processed into a container that has both active and passive oxygen barrier and carbon dioxide barrier properties at an improved color and clarity than containers known in the art. The partially aromatic polyarnide is preferably meta­xylylene adipamide. The ionic compatibilizer is preferably 5-sodiumsulfoisophthalic acid or 5zincsulfoisophthalic acid, or their dialkyl esters such as the dimethyl ester (SIM) and glycol ester (SIPEG). The cobalt salt is selected form the class of cobalt acetate, cobalt carbonate, cobalt chloride, cobalt hydroxide, cobalt naphthenate, cobalt oleate, cobalt linoleate, cobalt octoate, cobalt stearate, cobalt nitrate, cobalt phosphate, cobalt sulfate, cobalt (ethylene glycolate), or mixtures of two or more of these. The partially aromatic polyamide is present in a range from about I to about 10 wt. % of said composition. The ionic compatibilizer is present in a range from about 0.1 to about 2.0 mol-% of said composition. The cobalt salt is present in a range from about 20 to about 500 ppm of said composition.

    Abstract translation: 本发明包括聚酯的共混物,并用在离子相容剂部分芳族聚酰胺和钴盐。 这种共混物可以被加工成一个容器确实具有改进的颜色和清晰度比现有技术中已知的容器主动和被动的阻氧和二氧化碳的阻隔性能。 的部分芳族聚酰胺优选是间苯二亚甲基己二酰二胺。 该离子相容剂是优选间苯二甲酸-5-磺酸钠或5- zincsulfoisophthalic酸,或它们的二烷基酯:例如二甲基酯(SIM)和乙二醇酯(SIPEG)。 钴盐被选择形成所述类乙酸钴,碳酸钴,氯化钴,氢氧化钴,环烷酸钴,油酸钴,钴亚油酸,辛酸钴,硬脂酸钴,硝酸钴,磷酸钴,硫酸钴,钴(乙烯甘醇酸) 或两种或多种的混合物的合成。 的部分芳族聚酰胺是存在的范围从约1至约10wt。%的所述组合物中。 该离子相容剂的存在量为约0.1至约2.0摩尔%的所述组合物的范围内。 钴盐是存在的范围从约20至约500ppm所述组合物的。

    ARTICLES HAVING IMPROVED GAS BARRIER PROPERTIES
    5.
    发明公开
    ARTICLES HAVING IMPROVED GAS BARRIER PROPERTIES 审中-公开
    具有改进的气体阻隔性文章

    公开(公告)号:EP1931717A1

    公开(公告)日:2008-06-18

    申请号:EP06825621.3

    申请日:2006-10-06

    Inventor: MEHTA, Sanjay

    Abstract: The present invention relates to a sulfo-modified copolyester blend composition and polyglycolic acid. The blend of sulfo-modified copolyester and polyglycolic acid can be used to prepare containers with good transparency and high gas barrier properties. The preferred sulfo-modified copolyester composition comprises terephthalic acid, isophthalic acid and 5-sulfoisophthalic acid. A method of preparing a blend of sulfo-modified copolyester and polyglycolic acid is disclosed, as well as master batch processes. The present invention also relates to a method of making a container wherein the sulfo-modified copolyester is blended with the polyglycolic acid at an injection molding machine used to make preforms, which are then blown into bottles.

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