Polyester-grafted starch-polymer alloy
    1.
    发明授权
    Polyester-grafted starch-polymer alloy 失效
    聚酯接枝淀粉 - 聚合物合金

    公开(公告)号:US5719214A

    公开(公告)日:1998-02-17

    申请号:US606879

    申请日:1996-02-26

    摘要: A polyester-grafted starch-polymer alloy is capable of imparting practical flexibility and toughness to moldings with no or only a little plasticizer. The polyester-grafted starch-polymer alloy comprises a blend of a polyester-grafted starch (a starch which has polyester graft chains on the starch molecule, with the terminal hydroxyl groups of the polyester graft chains and the hydroxyl groups connected directly to the starch entirely or partly blocked with the ester group) and an independent polyester (a polyester which is constructed of the same unit as said polyester graft chain, with its terminal hydroxyl groups entirely or partly blocked with the ester group) which are uniformly mixed together. A method of preparing the alloy and thermoplastic resin compositions containing the alloy also are disclosed.

    摘要翻译: 聚酯接枝的淀粉 - 聚合物合金能够赋予模制品实用的柔韧性和韧性,而不用或只有一点增塑剂。 聚酯接枝的淀粉 - 聚合物合金包括聚酯接枝淀粉(在淀粉分子上具有聚酯接枝链的淀粉,聚酯接枝链的末端羟基和直接与淀粉直接相连的羟基)的共混物 或部分被酯基封端)和独立的聚酯(由与所述聚酯接枝链相同的单元构成的聚酯,其端羟基全部或部分被酯基封端)并均匀混合。 还公开了制备含有该合金的合金和热塑性树脂组合物的方法。

    Esterfied, polyester-grafted starch
    3.
    发明授权
    Esterfied, polyester-grafted starch 失效
    酯化,聚酯接枝淀粉

    公开(公告)号:US5693786A

    公开(公告)日:1997-12-02

    申请号:US606703

    申请日:1996-02-26

    摘要: A starch derivative which, when incorporated with no or only a little plasticizer, yields moldings having good flexibility, toughness, and water-relating properties for practical use is an esterified, polyester-grafted starch which is formed by esterifying starch and grafting the starch with polyester. The esterification involves the introduction of one or more acyl groups consisting of saturated or unsaturated aliphatic acid groups or aromatic carboxylic acid groups having 2 to 18 carbon atoms and the polyester is one which is formed from one or more 4- to 12-membered lactones by ring-opening polymerization, with the terminal hydroxyl groups being almost completely blocked by esterification.

    摘要翻译: 一种淀粉衍生物,当与没有或只有少量增塑剂混合时,产生具有良好柔软性,韧性和水相关性能的实际应用的成型品是酯化的聚酯接枝淀粉,其通过酯化淀粉和将淀粉接枝 聚酯。 酯化包括引入一个或多个由饱和或不饱和脂肪酸基团或具有2至18个碳原子的芳族羧酸基团组成的酰基,并且聚酯是由一个或多个4至12元内酯由一个或多个4至12元内酯形成的酰基 开环聚合,末端羟基几乎完全被酯化阻断。