Polyhydroxyalkanoate copolymer including unit having bromo group in side chain and method for producing the same
    1.
    发明授权
    Polyhydroxyalkanoate copolymer including unit having bromo group in side chain and method for producing the same 失效
    聚羟基链烷酸酯共聚物,包括在侧链中具有溴基的单元及其制备方法

    公开(公告)号:US07135540B2

    公开(公告)日:2006-11-14

    申请号:US10359600

    申请日:2003-02-07

    IPC分类号: C08G63/02

    摘要: The invention provides a polyhydroxyalkanoate having a bromo group in a unit and being thermally stable and capable of arbitrarily controlling physical properties, and a producing method thereof. According to the invention, there are provided a polyhydroxyalkanoate copolymer including a 3-hydroxy-ω-bromoalkanoic acid unit represented by a formula—[OCH((CH2)nBr)CH2C(O)]— (n=1 to 8) (1) and a unit represented by a formula —[OCH((CH2)mR)CH2C(O)]— (2) within a same molecule, and a method for producing a polyhydroxyalkanoate copolymer by microorganisms, utilizing a ω-bromoalkanoic acid represented by a formula Br(CH2)pCH2CH2COOH (p=1 to 8) (20) and a compound represented by a formula R(CH2)qCH2CH2COOH (21) as raw materials.

    摘要翻译: 本发明提供一种具有溴基团并且是热稳定的并能够任意控制物理性能的聚羟基链烷酸酯及其制备方法。 根据本发明,提供了一种包含由式 - [OCH((CH 2)n)n Br表示的3-羟基-ω-溴代链烷酸单元的聚羟基链烷酸酯共聚物 )CH 2 C(O)] - (n = 1-8)(1)和由式 - [OCH((CH 2)2) (O)] - (2),以及通过微生物制备聚羟基链烷酸酯共聚物的方法,使用由以下化合物表示的ω-溴烷酸: 式(Br 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 COOH(p = 1〜8)(20 )和由式R(CH 2 CH 2)q CH 2 CH 2 COOH(21)表示的化合物 作为原料。

    Method and apparatus for producing polyhydroxyalkanoate
    9.
    发明授权
    Method and apparatus for producing polyhydroxyalkanoate 失效
    聚羟基链烷酸酯的制备方法和装置

    公开(公告)号:US06808907B2

    公开(公告)日:2004-10-26

    申请号:US10105332

    申请日:2002-03-26

    IPC分类号: C12P762

    CPC分类号: C12P7/625 C12M47/06

    摘要: The present invention provides a method for producing highly purified polyhydroxyalkanoate (PHA) with high yield, by removing cell components other than PHA from cells containing PHA. Moreover, the present invention provides a method for simply removing or reducing chlorine remained in the collected PHA particles, when a treatment with an oxidizing agent containing hypochlorite is performed in the production of PHA as described above. One of the above-described methods comprises a step of treating cells containing polyhydroxyalkanoate with an oxidizing agent containing at least hypochlorite, a step of separating the treated cells into a water-soluble fraction and a water-insoluble fraction, and a step of reducing chlorine remained in the water-insoluble fraction. The step of reducing chlorine may be a step of washing the water-insoluble fraction with a hot water, thiosulfate solution or polar solvent solution containing at least an organic polar solvent in which polyhydroxyalkanoate is insoluble.

    摘要翻译: 本发明提供了通过从含有PHA的细胞中除去PHA以外的细胞成分而以高产率生产高纯度聚羟基链烷酸酯(PHA)的方法。 此外,本发明提供了如上所述在生产PHA中进行含有次氯酸盐的氧化剂的处理时,简单地除去或还原所收集的PHA颗粒中残留的氯的方法。 上述方法之一包括用至少含有次氯酸盐的氧化剂处理含有聚羟基链烷酸酯的细胞的步骤,将经处理的细胞分离成水溶性级分和水不溶性级分的步骤以及还原氯 保留在水不溶性部分中。 还原氯的步骤可以是用至少含有聚羟基链烷酸酯不溶的有机极性溶剂的热水,硫代硫酸盐溶液或极性溶剂溶液洗涤水不溶性部分的步骤。