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    POLYMER FILM WITH RENEWABLE CONTENT
    5.
    发明公开
    POLYMER FILM WITH RENEWABLE CONTENT 审中-公开
    可更新内容的聚合物薄膜

    公开(公告)号：EP3003712A1

    公开(公告)日：2016-04-13

    申请号：EP14804932.3

    申请日：2014-05-29

    申请人： Tristano Pty Ltd

    发明人： LEUFGENS, Markus

    IPC分类号： B32B9/02 ,  C08L3/02 ,  C08J5/18 ,  C08L23/06

    CPC分类号： B32B27/08 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/065 ,  B29K2003/00 ,  B29K2023/0608 ,  B29L2031/7128 ,  B32B1/02 ,  B32B7/02 ,  B32B9/02 ,  B32B9/045 ,  B32B27/20 ,  B32B27/30 ,  B32B27/308 ,  B32B27/32 ,  B32B27/327 ,  B32B2250/03 ,  B32B2264/102 ,  B32B2264/104 ,  B32B2270/00 ,  B32B2307/21 ,  B32B2307/31 ,  B32B2307/4026 ,  B32B2307/412 ,  B32B2307/72 ,  B32B2307/728 ,  B32B2307/73 ,  B32B2439/46 ,  B32B2439/70 ,  C08L3/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/0869

    摘要： The present invention relates to polymer film having a multilayer structure, the multilayer structure comprising an inner polymer layer interposed between first and second outermost polymer layers, wherein: (i) the inner polymer layer comprises a melt blend of: (a) a starch containing polymer composition comprising polyethylene, thermoplastic starch, and one or more compatibilisers; (b) a metallocene polyethylene having a melt flow index in the range of 0.5 to 2.5 g/10min and a density in the range of 0.910 to 0.935 g/cm
    3 ; (c) polyethylene having a melt flow index in the range of 2 to 4 g/10min and a density in the range of 0.918 to 0.925 g/cm
    3 ; and (d) polyethylene have a melt flow index in the range of 0.05 to 0.2 g/10min and a density in the range of 0.948 to 0.955 g/cm
    3 ; (ii) the first and second outermost layers independently (a) comprise a metallocene polyethylene having a melt flow index in the range of 0.5 to 2.5 g/10min and a density in the range of 0.916 to 0.935 g/cm
    3 , or (b) have a heat seal initiation temperature of no greater than 120°C, wherein at least one of the first and second outermost layers has a heat seal initiation temperature of no greater than 120°C.

    摘要翻译： 本发明涉及具有多层结构的聚合物膜，所述多层结构包含插入第一和第二最外聚合物层之间的内聚合物层，其中：（i）内聚合物层包含以下物质的熔融共混物：（a）含淀粉 包含聚乙烯，热塑性淀粉和一种或多种相容剂的聚合物组合物; （b）熔体流动指数为0.5-2.5克/ 10分钟，密度为0.910-0.935克/厘米3的茂金属聚乙烯; （c）熔体流动指数在2至4g / 10min范围内且密度在0.918至0.925g / cm 3范围内的聚乙烯; 和（d）聚乙烯具有0.05-0.2g / 10min范围内的熔体流动指数和0.948-0.9555g / cm 3范围内的密度; （ii）第一和第二最外层独立地（a）包含熔体流动指数在0.5-2.5g / 10min范围内且密度在0.916-0.935g / cm 3范围内的茂金属聚乙烯，或（b） ）具有不高于120℃的热封起始温度，其中第一和第二最外层中的至少一个具有不高于120℃的热封起始温度。