POLYMER BLENDS OF BIODEGRADABLE OR BIO-BASED AND SYNTHETIC POLYMERS AND FOAMS THEREOF
    1.
    发明公开
    POLYMER BLENDS OF BIODEGRADABLE OR BIO-BASED AND SYNTHETIC POLYMERS AND FOAMS THEREOF 审中-公开
    可生物降解或生物聚合物和合成聚合物和泡沫物的聚合物混合物

    公开(公告)号:EP2252655A1

    公开(公告)日:2010-11-24

    申请号:EP08873272.2

    申请日:2008-12-18

    IPC分类号: C08L25/04 C08L67/04 C08J9/04

    摘要: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene- methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.

    摘要翻译: 本发明涉及组合物,其包括烯基芳族聚合物的共混物:如苯乙烯系聚合物(即,PS和HIPS)和基于生物的或可生物降解的聚合物(即PLA,PGA,PHA,PBS,PCL)与苯乙烯类共聚物相容(即苯乙烯 - 乙烯 - 丁烯 - 苯乙烯(SEBS)嵌段共聚物,马来酸化SEBS,苯乙烯 - 马来酸酐(SMA)共聚物,苯乙烯 - 甲基丙烯酸甲酯(SMMA)共聚物)或两种或多种基于苯乙烯的共聚物的混合物:如SEBS和SMA。 这些新的组合物可被挤出和热成型以产生非常低的密度的泡沫食品服务和消费物品:例如板,铰链盖容器,盘,碗和蛋箱具有良好的机械性能。