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    BIOLOGISCH ABBAUBARE POLYESTERMISCHUNG
    54.
    发明授权
    BIOLOGISCH ABBAUBARE POLYESTERMISCHUNG 有权

    公开(公告)号：EP1838784B1

    公开(公告)日：2008-06-18

    申请号：EP05821799.3

    申请日：2005-12-31

    Applicant: BASF SE

    Inventor： SEELIGER, Ursula ,  SKUPIN, Gabriel ,  STÄRKE, Dirk

    IPC: C08L67/00 ,  C08G63/00

    CPC classification number: C08L67/02 ,  C08K5/101 ,  C08K5/20 ,  C08L25/14 ,  C08L33/068 ,  C08L63/00 ,  C08L67/04 ,  C08L91/00 ,  C08L101/06 ,  C08L2666/02 ,  C08L2666/14

    Abstract: The invention relates to biologically-degradable polyester mixtures, comprising i) 5 to 80 wt. %, based on the total weight of the components i to ii, of a least one polyester made from aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds and ii) 20 to 95 wt. %, based on the total weight of components i to ii, of at least one biologically-degradable homo- or co-polyester, selected from the group comprising polylactides, polycaprolactones, polyhydroxyalkanoates and polyesters made from aliphatic dicarboxylic acids and aliphatic diols and iii) 0.1 to 15 wt. %, based on the total weight of components i to ii, a) of an epoxide-containing copolymer made from styrol, acrylate ester and/or methacrylate ester, b) of a biphenol-A-epoxide or c) an epoxide-containing natural oil, fatty acid ester or fatty acid amide and iv) 0 to 15 wt. % additive and v) 0 to 50 wt. % inorganic or organic fillers and method for production and use thereof.

    Abstract translation: 本发明涉及生物可降解聚酯混合物，其包含：i）5至80wt。 基于组分i至ii的总重量，至少一种由脂族和芳族二羧酸和脂族二羟基化合物制成的聚酯，和ii）20-95wt。 基于组分i至ii的总重量，至少一种选自聚丙交酯，聚己内酯，聚羟基链烷酸酯和由脂族二羧酸和脂族二醇制备的聚酯的生物可降解的均聚或共聚酯，和iii） 0.1至15wt。 基于组分i至ii的总重量，a）由苯乙烯，丙烯酸酯和/或甲基丙烯酸酯制成的含环氧化物的共聚物，b）联苯酚-A-环氧化物或c）含环氧化物的天然 油，脂肪酸酯或脂肪酸酰胺和iv）0-15wt。 ％添加剂和v）0至50wt。 ％无机或有机填料及其生产和使用方法。

    VERFAHREN ZUR HERSTELLUNG VON CLINGFOLIEN
    59.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CLINGFOLIEN 审中-公开
    用于生产保鲜膜

    公开(公告)号：EP2550330A1

    公开(公告)日：2013-01-30

    申请号：EP11709426.8

    申请日：2011-03-23

    Applicant: BASF SE

    Inventor： REN, Liqun ,  SKUPIN, Gabriel

    IPC: C08L67/00 ,  C08G63/00 ,  C08J5/18

    CPC classification number: C08G63/20 ,  C08G63/183 ,  C08L67/02 ,  C08L67/04 ,  C08L2205/03 ,  C08L2666/18

    Abstract: The present invention relates to a process for producing cling films, using biodegradable polyesters obtainable by polycondensation of: i) 65 to 80 mol%, based on the components i to ii, one or more dicarboxylic acid derivatives or dicarboxylic acids selected from the group consisting of: succinic acid, adipic acid, sebacic acid, azelaic acid and brassylic acid; ii) 35 to 20 mol%, based on the components i) to ii), of a terephthalic acid derivative; iii) 98 to 102 mol%, based on the components i) to ii), of a C2-C8 alkylenediol or C2-C6 oxyalkylenediol; iv) 0.1 to 2% by weight, based on the polymer obtainable from the components i to iii, of an at least trifunctional crosslinker or at least difunctional chain extender. In addition the invention relates to polymer mixtures which are particularly suitable for producing cling films, and to cling films which contain biodegradable polyesters.

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