Polymer alloy including polylactic acid
    6.
    发明授权
    Polymer alloy including polylactic acid 有权
    聚合物合金包括聚乳酸

    公开(公告)号:US07160948B2

    公开(公告)日:2007-01-09

    申请号:US10919522

    申请日:2004-08-17

    IPC分类号: C08L53/00

    摘要: The object of the present invention is to provide a polymer alloy including polylactic acid which can be used in the same manner as conventional commodity plastics even in an environment of high temperature and high humidity. According to the present invention, there is provided a polymer alloy including polylactic acid comprising (A) a polylactic acid, (B) a polyalkylacrylic ester and/or a polyvinyl ester, (C) a polyolefin and (D) a block copolymer of a polyalkylacrylic ester and polyolefin and/or a block copolymer of a polyvinyl ester and a polyolefin.

    摘要翻译: 本发明的目的是提供一种包括聚乳酸的聚合物合金,其即使在高温高湿环境中也可以与常规商品塑料一样使用。 根据本发明,提供了包含聚乳酸的聚合物合金,其包含(A)聚乳酸,(B)聚烷基丙烯酸酯和/或聚乙烯酯,(C)聚烯烃和(D) 聚烷基丙烯酸酯和聚烯烃和/或聚乙烯酯和聚烯烃的嵌段共聚物。

    Method and apparatus for synthesis of lactide
    7.
    发明申请
    Method and apparatus for synthesis of lactide 审中-公开
    合成丙交酯的方法和装置

    公开(公告)号:US20050222379A1

    公开(公告)日:2005-10-06

    申请号:US11066998

    申请日:2005-02-28

    摘要: The present invention is envisaged to provide an apparatus and a process for synthesizing lactide, according to which the water content in the produced lactide can be reduced. In operation of the system, lactic acid oligomer discharge valve 10 is closed, allowing transfer of lactic acid to its polycondensing apparatus 2, and concentration and polycondensation of lactic acid are advanced by heating and evacuation, with the produced water being evaporated. Lactic acid, lactic acid oligomer and lactide are removed from the produced gaseous body by condenser 11 and refluxed to the polycondensing apparatus, and then water content in the gaseous body is measured by pressure gauge 12. After confirming that the water content is below a specified value, lactic acid oligomer discharge valve 10 is opened to allow transfer of the lactic acid oligomer, said oligomer being depolymerized to produce gaseous lactide, which is condensed and recovered.

    摘要翻译: 本发明设想提供一种用于合成丙交酯的装置和方法,根据该方法可以减少所生产的丙交酯中的水含量。 在该系统的操作中,乳酸低聚物排出阀10关闭,允许将乳酸转移到其缩聚装置2中,并且通过加热和抽真空来促进乳酸的浓缩和缩聚,产生的水被蒸发。 乳酸,乳酸低聚物和丙交酯通过冷凝器11从产生的气体中除去并回流到缩聚装置,然后通过压力计12测量气体中的含水量。 在确认水分低于规定值后,打开乳酸低聚物排出阀10,使乳酸低聚物转移,将所述低聚物解聚,生成气态丙交酯,将其冷凝回收。