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    PROCESS FOR THE CONTINUOUS PREPARATION OF AN ALIPHATIC OR PARTIALLY AROMATIC POLYAMIDE
    3.
    发明申请
    PROCESS FOR THE CONTINUOUS PREPARATION OF AN ALIPHATIC OR PARTIALLY AROMATIC POLYAMIDE 有权
    连续制备芳香或部分芳族聚酰胺的方法

    公开(公告)号：US20160145390A1

    公开(公告)日：2016-05-26

    申请号：US14896945

    申请日：2014-06-11

    Applicant: BASF SE

    Inventor： Christian Schmidt ,  Joachim Clauss ,  Axel Wilms ,  Volker Rauschenberger ,  Gad Kory ,  Stefan Schwiegk ,  Arnold Schneller ,  Achim Stammer ,  Frank Niedermaier ,  Bernd Hackel

    IPC: C08G69/28 ,  C08G69/26

    CPC classification number: C08G69/28 ,  C08G69/26 ,  C08G69/265

    Abstract: The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.

    Abstract translation: 本发明涉及一种制备脂族或部分芳族聚酰胺的方法，其中单体的水性组合物在升高的温度下进行低聚和增加的压力，反应混合物任选经历第一减压以减少 将水含量，（任选减压）的反应混合物在短时间内加热到高于聚酰胺的熔融温度的温度，加热的反应混合物经受（进一步）减压以降低含水量， 聚合。

    METHOD FOR CONTINUOUSLY PRODUCING POLYAMIDE OLIGOMERS AND PRODUCING SEMICRYSTALLINE OR AMORPHOUS POLYAMIDES THAT CAN BE THERMOPLASTICALLY PROCESSED
    4.
    发明申请
    METHOD FOR CONTINUOUSLY PRODUCING POLYAMIDE OLIGOMERS AND PRODUCING SEMICRYSTALLINE OR AMORPHOUS POLYAMIDES THAT CAN BE THERMOPLASTICALLY PROCESSED 审中-公开
    连续生产聚酰胺低聚物的方法和生产可被热塑性加工的半结晶或无定形聚酰胺

    公开(公告)号：US20160130397A1

    公开(公告)日：2016-05-12

    申请号：US14896780

    申请日：2014-06-11

    Applicant: BASF SE

    Inventor： Joachim Clauss ,  Stefan Schwiegk ,  Gad Kory ,  Christian Schmidt ,  Axel Wilms ,  Florian Richter ,  Ning Zhu ,  Sike Biedasek ,  Isa Alexandra Queiroz Da Fonseca ,  Heinrich Sack ,  Arnold Schneller ,  Achim Stammer ,  Volker Rauschenberger

    IPC: C08G69/30

    Abstract: The invention relates to a process for continuously preparing polyamide oligomers. This comprises continuous conveying of an aqueous solution of polyamide-forming monomers from a reservoir vessel into an oligomerization reactor, heating of the aqueous solution beyond a dissolution or storage temperature, the residence time of the monomer solution in the oligomerization reactor being limited and the pressure or the partial vapor pressure of the water being adjusted such that a conversion of monomers to polyamide oligomers does not exceed a maximum value and/or the polyamide oligomers formed do not phase-separate or spontaneously crystallize in solid form, and continuous discharge of the polyamide oligomers from the oligomerization reactor. A polyamide oligomer preparable by this process can be provided continuously in a mixture with water in a process for preparing a semicrystalline or amorphous, thermoplastically processible polyamide and then postcondensed to give a polyamide. This polyamide can be used for production of moldings by means of injection molding, multicomponent injection molding, injection molding/welding, extrusion, coextrusion, blow molding or thermoforming.

    Abstract translation: 本发明涉及连续制备聚酰胺低聚物的方法。 这包括将聚酰胺形成单体的水溶液从储存容器连续输送到低聚反应器中，将水溶液加热超过溶解或储存温度，单体溶液在低聚反应器中的停留时间受限制，压力 或调节水的部分蒸气压使得单体向聚酰胺低聚物的转化率不超过最大值，和/或形成的聚酰胺低聚物不以固体形式相分离或自发结晶，并且连续排出聚酰胺 低聚反应器的低聚物。 通过该方法制备的聚酰胺低聚物可以在制备半结晶或无定形，热塑性可加工聚酰胺的方法中与水的混合物连续提供，然后进行缩合以得到聚酰胺。 该聚酰胺可用于通过注射成型，多组分注射成型，注射成型/焊接，挤出，共挤出，吹塑或热成型来生产模制品。

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