Composition based on an ethylene-vinyl alcohol copolymer and its use
    1.
    发明授权
    Composition based on an ethylene-vinyl alcohol copolymer and its use 失效
    基于乙烯 - 乙烯醇共聚物的组合物及其用途

    公开(公告)号:US06451911B1

    公开(公告)日:2002-09-17

    申请号:US09487205

    申请日:2000-01-19

    IPC分类号: C08L7700

    摘要: The invention relates to a composition based on an ethylene-vinyl alcohol copolymer comprising: 50 to 98% by weight of an EVOH copolymer 1 to 50% by weight of a polyethylene (A) 1 to 15% by weight of a polymer (B) resulting from the reaction (i) of a copolymer (B1) of ethylene and of an unsaturated monomer X grafted or copolymerized with (ii) a polyamide (B2). It also relates to a multilayer structure comprising a layer consisting of this composition. This structure is useful for making packaging. The composition of the invention also adheres well to PET, this property being useful in coinjection to make bioriented preforms.

    摘要翻译: 本发明涉及一种基于乙烯 - 乙烯醇共聚物的组合物,其包含:50〜98重量%的EVOH共聚物1〜50重量%的聚乙烯(A),1〜15重量%的聚合物(B),得到 由乙烯和(ii)聚酰胺(B2)接枝或共聚的不饱和单体X的共聚物(B1)的反应(i)。 它还涉及包含由该组合物组成的层的多层结构。 这种结构对于制造包装是有用的。 本发明的组合物还可以很好地粘附到PET上,这种性质可用于共注射以制备双目标的预型件。

    Composition based on an ethylene-vinyl alcohol copolymer and its use
    2.
    发明授权
    Composition based on an ethylene-vinyl alcohol copolymer and its use 失效
    基于乙烯 - 乙烯醇共聚物的组合物及其用途

    公开(公告)号:US06294609B1

    公开(公告)日:2001-09-25

    申请号:US09487203

    申请日:2000-01-19

    IPC分类号: C08L2904

    摘要: Particularly useful as a barrier layer in packaging, e.g. multilayer structures, is a composition based on an ethylene-vinyl alcohol copolymer comprising: 50 to 98% by weight of an EVOH copolymer 1 to 50% by weight of a polyethylene (A) 1 to 15% by weight of a polyethylene (B) being a blend of a polyethylene (B1) and a polyethylene (B2) chosen from elastomers, very-low-density polyethylenes and metallocene polyethylenes, the blend of (B1) and (B2) being cografted by an unsaturated carboxylic acid or a functional acid derivative thereof.

    摘要翻译: 特别用作包装中的阻挡层,例如。 多层结构是基于乙烯 - 乙烯醇共聚物的组合物,其包含:50〜98重量%的EVOH共聚物,1〜50重量%的聚乙烯(A),1〜15重量%的聚乙烯(B)为 选自弹性体,极低密度聚乙烯和茂金属聚乙烯的聚乙烯(B1)和聚乙烯(B2)的共混物,(B1)和(B2)的共混物由不饱和羧酸或官能酸衍生物共同接枝 其中。