Oxygen barrier resin composition and product containing the same
    1.
    发明授权
    Oxygen barrier resin composition and product containing the same 有权
    防氧化树脂组合物和含有它的产品

    公开(公告)号:US06156401A

    公开(公告)日:2000-12-05

    申请号:US395293

    申请日:1999-09-13

    摘要: Disclosed are an oxygen barrier resin composition and products containing the resin. The resin composition comprises 20 to 80 wt % of an ethylene-vinyl alcohol copolymer, 5 to 79 wt % of an ethylene copolymer, and 1 to 30 wt % of a compatibilizer obtained between a random copolymer of ethylene-maleic anhydride-alkyl(meth)acrylate and a polyamide oligomer ranging, in molecular weight, from 1,000 to 5,000. The compatibilizer functions in such a way that the main chain of the polyamide penetrates into the ethylene-vinyl alcohol phase while the main chain of the ethylene-alkyl(meth)acrylate exists in the ethylene copolymer phase. The resin composition is superior in both melt-moldability and compatibility, providing films, sheets or bottles with superb appearance (transparency), mechanical strength and oxygen barrier.

    摘要翻译: 公开了一种阻氧树脂组合物和含有该树脂的产品。 该树脂组合物包含20至80重量%的乙烯 - 乙烯醇共聚物,5至79重量%的乙烯共聚物和1至30重量%的在乙烯 - 马来酸酐 - 烷基(甲基)丙烯酸酯的无规共聚物之间获得的增容剂 )丙烯酸酯和分子量为1,000至5,000的聚酰胺低聚物。 增容剂的作用是使聚酰胺的主链渗透到乙烯 - 乙烯醇相中,而乙烯 - (甲基)丙烯酸烷基酯的主链存在于乙烯共聚物相中。 树脂组合物在熔融成型性和相容性方面均优异,提供具有优异外观(透明度),机械强度和氧气屏障的膜,片或瓶。

    Polyolefinic blend and process for preparing the same
    3.
    发明授权
    Polyolefinic blend and process for preparing the same 失效
    聚烯烃共混物及其制备方法

    公开(公告)号:US5641833A

    公开(公告)日:1997-06-24

    申请号:US371245

    申请日:1995-01-11

    摘要: A homogeneous polyolefinic blend and a preparation process thereof, are provided wherein the blend comprises polyolefin and a polymer which has a barrier property to organic liquid and vapor permeability. The barrier property is improved through the inclusion of mixed compatibilizing substances comprising an alkylcarboxyl-substituted polymer and reactive low molecular weight compounds. The compatibilizing substances are included by the means of ordinary processing equipment. The polymer with the barrier property having low organic liquid and vapor permeability is distributed as a multitude of thin, wide, disc-like layers in a polyolefin phase. The compatibilizing substances minimize the interfacial energy between the two polymers to adhere them together.

    摘要翻译: 提供均匀的聚烯烃共混物及其制备方法,其中共混物包含聚烯烃和对有机液体和透气性具有阻隔性的聚合物。 通过包含包含烷基羧基取代的聚合物和反应性低分子量化合物的混合相容性物质来改善阻隔性。 相容性物质包括在普通加工设备中。 具有低有机液体和透气性的阻隔性的聚合物在聚烯烃相中分布为多个薄的,宽的盘形层。 相容性物质使两种聚合物之间的界面能量最小化,使它们粘附在一起。