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    Continuous process for the production of polyamides
    3.
    发明申请
    Continuous process for the production of polyamides 有权
    生产聚酰胺的连续工艺

    公开(公告)号：US20040230027A1

    公开(公告)日：2004-11-18

    申请号：US10439463

    申请日：2003-05-16

    Inventor： Arthur William Etchells III ,  Frederick K. Mallon

    IPC: C08G069/08 ,  C08G073/10 ,  C08G069/26

    CPC classification number: C08G69/28 ,  C08G69/04

    Abstract: In a two-step precondensate process for preparing polyamides diamines are reacted with dicarboxylic acid dihalides in a polar, non-basic, inert organic liquid medium under conditions such that a condensation product having a low degree of polymerization is formed. The resulting condensation then is contacted with an aqueous solution of a water-soluble acid acceptor by continuously feeding the components into a reactor system having a total residence time from about 2 seconds to about 2 minutes, and having a Peclet number greater than about 3.5 to form a polyamide product having a high degree of polymerization.

    Abstract translation: 在两步预缩合方法中，制备聚酰胺二胺与二羧酸二卤化物在极性非碱性惰性有机液体介质中反应，使得形成低聚合度的缩合产物。 然后通过将组分连续地供入到具有约2秒至约2分钟的总停留时间的反应器系统中，然后使所得缩合物与水溶性酸受体的水溶液接触，并且具有大于约3.5至约3.5的佩佩克数 形成具有高聚合度的聚酰胺产品。

    Process for preparing polyamide 6 having a low dimer content
    5.
    发明申请
    Process for preparing polyamide 6 having a low dimer content 审中-公开
    制备二聚体含量低的聚酰胺6的方法

    公开(公告)号：US20040127678A1

    公开(公告)日：2004-07-01

    申请号：US10701315

    申请日：2003-11-04

    Inventor： Ralph Ulrich ,  Konrad Triebeneck

    IPC: C08G069/08

    CPC classification number: C08G69/18 ,  C08G69/16

    Abstract: The present invention relates to a process for preparing polyamide 6 (PA 6) by hydrolytic polymerization of null-caprolactam. In a first reaction step, a first intermediate mixture is formed by ring opening null-caprolactam in the presence of water, under conditions of increased pressure and temperature. The first intermediate mixture is then dehydrated to form a dehydrated intermediate having a water content of less than 0.5 wt. %. The dehydrated intermediate is subsequently polymerized to. produce a polyamide 6 product having a low dimer content (e.g., of less than 0.3 wt. %). The invention also relates to an apparatus in which the process may be performed. The apparatus includes, in sequence, a pressure reactor (23) having heat exchange surfaces (36), a dehydration device (24) that is in fluid communication with the pressure reactor (23), and a main reactor (25) that is in fluid communication with the dehydration device (24).

    Abstract translation: 本发明涉及通过ε-己内酰胺的水解聚合制备聚酰胺6（PA 6）的方法。 在第一反应步骤中，在水的存在下，在增加的压力和温度的条件下，通过开环ε-己内酰胺来形成第一中间体混合物。 然后将第一中间体混合物脱水以形成水含量小于0.5重量％的脱水中间体。 ％。 然后将脱水的中间体聚合。 产生具有低二聚体含量（例如小于0.3重量％）的聚酰胺6产品。 本发明还涉及可以执行该过程的装置。 该装置依次包括具有热交换表面（36）的压力反应器（23），与压力反应器（23）流体连通的脱水装置（24），以及主反应器 与脱水装置（24）的流体连通。

    Polyetherpolyamide elastomer having low water absorption
    6.
    发明申请
    Polyetherpolyamide elastomer having low water absorption 有权
    具有低吸水性的聚醚聚酰胺弹性体

    公开(公告)号：US20030144462A1

    公开(公告)日：2003-07-31

    申请号：US10304708

    申请日：2002-11-27

    Applicant: UBE INDUSTRIES, LTD.

    Inventor： Hiroshi Okushita ,  Tadao Muramatsu ,  Teruaki Fujii

    IPC: C08G069/08

    CPC classification number: C08G69/40 ,  Y10T428/31504 ,  Y10T428/31725 ,  Y10T428/31761

    Abstract: Polyetherpolyamide elastomer showing a low water absorption, a high stress relaxation, and a high elastic recovery percentage of elongation is obtainable by polymerizing an aminocarboxylic acid compound and/or a lactam compound, a triblock polyetherdiamine compound having the following formula, and a dicarboxylic acid compound: 1 nullx is a value of 1 to 20, y is a value of 4 to 50, z is a value of 1 to 20null.

    Abstract translation: 通过使氨基羧酸化合物和/或内酰胺化合物，具有下式的三嵌段聚醚二胺化合物和二羧酸化合物聚合，可以获得显示低吸水性，高应力松弛性和高弹性恢复伸长率的聚醚聚酰胺弹性体 ：[x为1〜20的值，y为4〜50的数，z为1〜20的值]。

    Method for preparing nylon 6 copolymer containing sulfonate comonomers
    7.
    发明申请
    Method for preparing nylon 6 copolymer containing sulfonate comonomers 有权
    制备含有磺酸共聚单体的尼龙6共聚物的方法

    公开(公告)号：US20030130478A1

    公开(公告)日：2003-07-10

    申请号：US10325857

    申请日：2002-12-23

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Tun-Fun Way ,  Cheng Yeh ,  Lien-Tai Chen ,  Chia-Hung Chen

    IPC: C08G069/08

    CPC classification number: C08G69/265

    Abstract: A method for preparing nylon 6 copolymer containing 5-sulfoisophthalate salts comonomer. The method includes the steps of reacting 5-sulfoisophthalate salts ester with aliphatic diamine in a molar ratio of 2null20 at 160null200null C., followed by completely removing the unreacted aliphatic diamine, to obtain the intermediate compound with terminal amine ,5-sulfobenzenediamide compound (formula III). Next, caprolactam and aliphatic diacid (formula IV) are reacted at 200null260null C. to form an oligomer with a low molecular weight. 5-Sulfobenzenediamide (formula III) and catalyst are then added into the oligomer obtained in previous step to cause a polymerization reaction at 200null280null C. to obtain nylon 6 copolymer containing 5-sulfoisophthalate salt comonomer. The molar ratio of E/C is 0.005null0.150 and the molar ratio of D/E is 1.05-1.00. Compounds present in the water extract are greatly reduced.

    Abstract translation: 一种制备含5-磺基间苯二甲酸盐共聚单体的尼龙6共聚物的方法。 该方法包括以下步骤：在160〜200℃下使5-磺基间苯二甲酸盐与脂肪族二胺摩尔比为2〜20，然后将未反应的脂族二胺完全除去，得到中间体化合物与末端胺，5 - 磺基二苯胺二胺化合物（式III）。 接着，将己内酰胺和脂肪族二酸（式Ⅳ）在200〜260℃反应，形成低分子量低聚物。 然后将5-磺基苯二甲酰胺（式III）和催化剂加入到前一步骤中获得的低聚物中，以在200〜280℃进行聚合反应，得到含有5-磺基间苯二甲酸盐共聚单体的尼龙6共聚物。 E / C摩尔比为0.005〜0.150，D / E摩尔比为1.05〜1.00。 存在于水提取物中的化合物大大降低。

    Polyamide resins and process for producing the same
    9.
    发明申请
    Polyamide resins and process for producing the same 有权
    聚酰胺树脂及其制造方法

    公开(公告)号：US20030023028A1

    公开(公告)日：2003-01-30

    申请号：US10192716

    申请日：2002-07-11

    Inventor： Kazumi Tanaka ,  Takatoshi Shida ,  Hideyuki Kurose

    IPC: C08G069/08

    CPC classification number: C08G69/28 ,  C08G69/04 ,  C08G69/265

    Abstract: The polyamide resin of the present invention is produced by the polycondensation of a dicarboxylic acid component and a diamine component containing xylylenediamine and bisaminomethylcyclohexane in a total amount of 70 mol % or higher. The polyamide resin contains impurities having a boiling point of from 150 to 300null C. at ordinary pressure and a solubility parameter of from 8 to 16 in a total amount of 0.3% by weight or lower based on the weight of the polyamide resin. The polyamide resin is free from various inconveniences due to inclusion of the impurities, and suitably used in applications for molding materials, bottles, sheets, films and fibers.

    Abstract translation: 本发明的聚酰胺树脂通过二羧酸成分和含有二甲苯二胺和二氨基甲基环己烷的二胺成分的总量为70摩尔％以上的缩聚而制造。 聚酰胺树脂在常压下含有沸点为150〜300℃，溶解度参数为8〜16，相对于聚酰胺树脂的重量为0.3重量％以下的杂质。 聚酰胺树脂由于包含杂质而没有各种不便，并且适用于成型材料，瓶，片，薄膜和纤维的应用。

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