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    METHOD FOR PRODUCING POLYAMIDE, AND POLYAMIDE
    2.
    发明申请
    METHOD FOR PRODUCING POLYAMIDE, AND POLYAMIDE 有权

    公开(公告)号：US20220389163A1

    公开(公告)日：2022-12-08

    申请号：US17755751

    申请日：2020-10-22

    申请人： Kureha Corporation

    发明人： Takashi MASAKI ,  Yoshinori SUZUKI

    IPC分类号： C08G69/20 ,  C08G69/24

    摘要： A method for producing a polyamide of the present invention, the method including polymerizing a raw material monomer having at least one alkylene group and at least one amide bond in the presence of a basic catalyst and a polymerization initiator. The number of carbons of the alkylene group is 1 or more and 3 or less. The polymerization initiator is a linear carboxylate having a structure derived from a secondary or tertiary alcohol.

    Impact-resistant polyamide composition and process for production of same
    6.
    发明授权
    Impact-resistant polyamide composition and process for production of same 有权
    耐冲击聚酰胺组合物及其制备方法

    公开(公告)号：US09006381B2

    公开(公告)日：2015-04-14

    申请号：US13806055

    申请日：2011-06-23

    申请人： Tokizane Imanishi ,  Hirofumi Nishida

    发明人： Tokizane Imanishi ,  Hirofumi Nishida

    IPC分类号： C08G69/08 ,  C08G69/14 ,  C08G69/20 ,  C08L77/02 ,  C08G69/18

    CPC分类号： C08G69/14 ,  C08G69/18 ,  C08G69/20 ,  C08L77/02 ,  C08L25/18

    摘要： Provided are: an impact-resistant polyamide composition which exhibits improved toughness and improved impact strength and which can be easily polymerized in-situ in a molding stage; and a novel process for the production of the same. The novel process comprises initiating the anionic polymerization of ε-caprolactam in the presence of (A) an anionic polymerization catalyst, (B) an anionic polymerization activator, (C) 2.0 to 30% by weight (relative to the ε-caprolactam) of an N,N-disubstituted vinylbenzylamine, and (D) a radical polymerization initiator, and subjecting the resulting system to reaction under conditions comprising a reaction temperature of the reaction system of 120 to 180° C. and a reaction time of 10 seconds to 120 minutes. Since radical polymerization in the process is conducted without hindering the anionic polymerization, an alloyed polyamide composed of both polycaprolactam and poly (N,N-disubstituted vinylbenzylamine) can be obtained.

    摘要翻译： 提供：耐冲击聚酰胺组合物，其显示出改进的韧性和改善的冲击强度，并且可以容易地在模塑阶段中原位聚合; 和一种新的生产方法。 该新方法包括在（A）阴离子聚合催化剂，（B）阴离子聚合活化剂，（C）2.0-30重量％（相对于ε-己内酰胺） ）的N，N-二取代的乙烯基苄基胺和（D）自由基聚合引发剂，并将所得体系在包括反应体系的反应温度为120-180℃并且反应时间为10秒的条件下反应 至120分钟。 由于在不阻碍阴离子聚合的情况下进行自由基聚合，所以可以得到由聚己内酰胺和聚（N，N-二取代乙烯基苄基胺）组成的合金化聚酰胺。

    Liquid system for executing an anionic lactam polymerization
    10.
    发明授权
    Liquid system for executing an anionic lactam polymerization 失效
    用于执行阴离子内酰胺聚合的液体体系

    公开(公告)号：US5864007A

    公开(公告)日：1999-01-26

    申请号：US786718

    申请日：1997-01-21

    申请人： Eduard Schmid ,  Roman Eder

    发明人： Eduard Schmid ,  Roman Eder

    IPC分类号： C08G69/18 ,  C08G69/20 ,  C08G69/14

    CPC分类号： C08G69/18 ,  C08G69/20

    摘要： A liquid system for executing the anionic lactam polymerization is proposed, which contains activator as well as catalyst and selectively additives and which is liquid at room temperature and remains stable when stored.

    摘要翻译： 提出了一种用于执行阴离子内酰胺聚合的液体体系，其含有活化剂以及催化剂和选择性添加剂，并且在室温下为液体并在储存时保持稳定。