Method for the continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III)
    1.
    发明授权
    Method for the continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) 有权
    基于内酰胺(I),二胺(II)和二羧酸(III)的共聚酰胺的连续生产方法,

    公开(公告)号:US06703475B1

    公开(公告)日:2004-03-09

    申请号:US10130044

    申请日:2002-05-13

    IPC分类号: C08G6904

    摘要: A process for continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) comprises reacting a mixture (IV) comprising a diamine (II), a dicarboxylic acid (III) and water in a first reaction zone at a pressure in the range from 1.3*105 to 2.5*105 Pa in the entry zone of the reaction zone and at a temperature above the melting point of polymer (V) to a conversion, based on the molar amounts of diamine (II) and dicarboxylic acid (III), of at least 80% to form a polymer (V), reacting a mixture (VI) comprising lactam (I) and water in a second reaction zone at a pressure in the range from 5*105 to 40*105 Pa and at a temperature above the melting point of polymer (VII) to a conversion, based on the molar amount of lactam (I), of at least 80% to form a polymer (VII), then reacting polymer (V) and polymer (VII) with each other in a third reaction zone at a pressure in the range from 1*105 to 1.5*105 Pa in the entry zone of the reaction zone at temperatures above the melting point of polymer (VIII) to form a polymer (VIII), said polymer (VIII) having a 95° C. water extractables content, based on lactam (I), diamine (II) and dicarboxylic acid (III), of not more than 10% by weight, and then extracting the polymer (VIII) with water to obtain the copolyamide.

    摘要翻译: 基于内酰胺(I),二胺(II)和二羧酸(III)连续生产共聚酰胺的方法包括将包含二胺(II),二羧酸(III)和水的混合物(IV) 第一反应区,在反应区的进入区中在1.3×10 5至2.5×10 5 Pa范围内的压力下,在高于聚合物(V)熔点的温度下,以基于 使二胺(II)和二羧酸(III)的摩尔量为至少80%,以形成聚合物(V),使第二反应区中含有内酰胺(I)和水的混合物(VI)在压力 在5×10 5至40×10 5 Pa的范围内,并且在高于聚合物(VII)的熔点的温度下,基于内酰胺(I)的摩尔量,至少80 %以形成聚合物(VII),然后在第三反应区中将聚合物(V)和聚合物(VII)彼此反应,在1×10 5至1.5×10 5 Pa的压力范围内 反应区的进入区 e在高于聚合物(VIII)熔点的温度下形成聚合物(VIII),基于内酰胺(I),二胺(II)和二羧酸(II),所述聚合物(VIII)具有95℃的可水提取物含量 III),不大于10重量%,然后用水萃取聚合物(VIII),得到共聚酰胺。

    PROCESS FOR WORKING UP PARTICULATE CRUDE POLYOXYMETHYLENE
    2.
    发明申请
    PROCESS FOR WORKING UP PARTICULATE CRUDE POLYOXYMETHYLENE 有权
    工作原理聚甲基苯乙烯的方法

    公开(公告)号:US20130041126A1

    公开(公告)日:2013-02-14

    申请号:US13570904

    申请日:2012-08-09

    IPC分类号: C08G2/28

    摘要: The invention relates to a process for working up particulate crude polyoxymethylene, which comprises the following steps: (a) introduction of the particulate crude polyoxymethylene into an extraction column (13) operated at a pressure in the range from 1 to 6 bar, (b) introduction of a polar extractant into the extraction column (13) with a temperature in the range from 95 to 140° C. and a pressure in the range from 1 to 6 bar, wherein from 10 to 1000 ppm, based on the amount of polar extractant introduced, of a buffer substance which buffers in the pH range from 7.5 to 11.5 are introduced into the extraction column (13).

    摘要翻译: 本发明涉及一种加工微粒粗聚甲醛的方法,其包括以下步骤:(a)将颗粒状粗聚甲醛引入到在1-6巴压力下操作的萃取塔(13)中,(b )将极性萃取剂引入萃取塔(13)中,温度为95至140℃,压力为1至6巴,其中10至1000ppm,基于 引入缓冲物质的极性萃取剂,其缓冲液的pH范围为7.5〜11.5,被引入提取塔(13)。

    Process for working up particulate crude polyoxymethylene
    4.
    发明授权
    Process for working up particulate crude polyoxymethylene 有权
    处理微粒粗聚甲醛的方法

    公开(公告)号:US08859721B2

    公开(公告)日:2014-10-14

    申请号:US13570904

    申请日:2012-08-09

    摘要: The invention relates to a process for working up particulate crude polyoxymethylene, which comprises the following steps: (a) introduction of the particulate crude polyoxymethylene into an extraction column (13) operated at a pressure in the range from 1 to 6 bar, (b) introduction of a polar extractant into the extraction column (13) with a temperature in the range from 95 to 140° C. and a pressure in the range from 1 to 6 bar, wherein from 10 to 1000 ppm, based on the amount of polar extractant introduced, of a buffer substance which buffers in the pH range from 7.5 to 11.5 are introduced into the extraction column (13).

    摘要翻译: 本发明涉及一种加工微粒粗聚甲醛的方法,其包括以下步骤:(a)将颗粒状粗聚甲醛引入到在1-6巴压力下操作的萃取塔(13)中,(b )将极性萃取剂引入萃取塔(13)中,温度为95至140℃,压力为1至6巴,其中10至1000ppm,基于 引入缓冲物质的极性萃取剂,其缓冲液的pH范围为7.5〜11.5,被引入提取塔(13)。

    Continuous method for the production of polyamides
    6.
    发明授权
    Continuous method for the production of polyamides 有权
    连续生产聚酰胺的方法

    公开(公告)号:US07776996B2

    公开(公告)日:2010-08-17

    申请号:US10588810

    申请日:2005-02-08

    IPC分类号: C08G69/08

    摘要: A continuous process for producing polyamides, their oligomers or mixtures thereof, if appropriate with further reaction products, comprises reaction of aminonitriles or dinitriles and diamines or mixtures thereof, if appropriate together with further polyamide-forming monomers and/or oligomers, with an aqueous medium composed of aqueous monomer and oligomer extracts obtained from polyamide production by extraction of the polymer with water in a reactor which has a vertical longitudinal axis and through which there is a flow substantially in the longitudinal direction wherein water and/or the aqueous medium are introduced into the reactor at two or more different locations along the vertical longitudinal axis, wherein the aqueous medium is introduced at one or more locations.

    摘要翻译: 生产聚酰胺,其低聚物或其混合物的连续方法(如果适用的话)与其它反应产物一起包括氨基腈或二腈和二胺或其混合物如果合适地与另外的形成聚酰胺的单体和/或低聚物一起与水性介质 由具有垂直纵轴的反应器中用水萃取聚合物的聚合物制备得到的含水单体和低聚物提取物组成,并且通过该单体和基本上沿纵向的流动,其中水和/或水性介质被引入 所述反应器沿着所述垂直纵向轴线的两个或更多个不同位置,其中所述水性介质在一个或多个位置被引入。

    Method for producing polyamides
    7.
    发明申请
    Method for producing polyamides 审中-公开
    生产聚酰胺的方法

    公开(公告)号:US20060235191A1

    公开(公告)日:2006-10-19

    申请号:US10550491

    申请日:2004-03-19

    IPC分类号: C08G69/08

    CPC分类号: C08G69/04 C08G69/28

    摘要: Polyamides, oligomers thereof or mixtures thereof, if required with further reaction products, are prepared by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitrile, dinitrile and diamine, and, if required, further polyamide-forming monomers and/oligomers with water in a reactor (1) having a vertically oriented longitudinal axis, by a process in which, in the reactor (1), the reaction product is removed from the bottom and ammonia formed and any further low molecular weight compounds formed and water are taken off via the top (2), wherein the reactor (1) has at least two chambers (4) arranged one on top of the other in the longitudinal direction, the chambers (4) being separated from one another by liquid-tight trays (5), each chamber (4) being connected by a liquid overflow (6) to the chamber (4) directly underneath and a liquid product stream being taken off by the liquid overflow (6) of the lowermost chamber (4), the gas space (7) above the liquid level in each chamber (4) being connected to the chamber (4) arranged directly above in each case by one or more conduit pipes (8) which in each case opens or open into a gas distributor (9) having orifices (11) for gas exit below the liquid level, and comprising in each case at least one baffle plate (12) which is arranged vertically around each gas distributor (9) and whose upper end terminates below the liquid level and whose lower end terminates above the liquid-tight tray (5) of the chamber (4) and which separates each chamber (4) into one or more gassed (13) and into one or more ungassed (14) spaces.

    摘要翻译: 如果需要,聚酰胺,其低聚物或其混合物,如果需要与其他反应产物反应,可通过氨基腈或二腈和二胺或含有氨基腈,二腈和二胺的混合物,以及如果需要,将另外的聚酰胺形成单体和/ 反应器(1)具有垂直取向的纵向轴线,其中在反应器(1)中将反应产物从底部除去并形成氨,并且形成的任何进一步的低分子量化合物和水通过 所述顶部(2),其中所述反应器(1)具有在纵向方向上一个在另一个上方布置的至少两个室(4),所述室(4)通过液密盘(5)彼此分离, ,每个室(4)通过液体溢流(6)直接在下面连接到室(4),并且液体产物流被最下室(4)的液体溢流(6)取出,气体空间 每个腔室(4)中的液位高于每个壳体(4)的腔室(4),其通过一个或多个在每种情况下打开或打开到气体分配器(9)的导管(8)直接布置在每个壳体的上方, 具有用于气体在液面以下排出的孔口(11),并且在每种情况下包括至少一个挡板(12),所述挡板(12)围绕每个气体分布器(9)垂直布置,并且其上端终止于液面以下,并且其下端 在室(4)的液密盘(5)上方,并将每个室(4)分成一个或多个充气(13)并分成一个或多个无气(14)空间。

    THERMOPLASTIC MOLDING COMPOUNDS CONTAINING STYRENE COPOLYMERS AND POLYAMIDES
    9.
    发明申请
    THERMOPLASTIC MOLDING COMPOUNDS CONTAINING STYRENE COPOLYMERS AND POLYAMIDES 审中-公开
    含有苯乙烯共聚物和聚酰胺的热塑性成型化合物

    公开(公告)号:US20110319550A1

    公开(公告)日:2011-12-29

    申请号:US13148393

    申请日:2010-01-29

    摘要: The thermoplastic molding composition comprises a) as component A, from 3 to 79% by weight of one or more styrene copolymers which have no units derived from maleic anhydride, b) as component B, from 15 to 91% by weight of one or more polyamides having, based on the entire component B, from 0.1 to 0.2% by weight of triacetonediamine (TAD) end groups, c) as component C, from 5 to 50% by weight of one or more impact-modifying rubbers, d) as component D, from 1 to 25% by weight of a styrene copolymer which, based on the entire component D, has from 1.9 to 2.3% by weight of units derived from maleic anhydride, e) as component E, from 0 to 40% by weight of further rubbers, f) as component F, from 0 to 50% by weight of one or more fibrous or particulate fillers, g) as component G, from 0 to 40% by weight of further additives, where the molding composition comprises less than 0.1% by weight of phthalic anhydride and the total amount of components A to D and, if appropriate, E to G is 100% by weight.

    摘要翻译: 热塑性模塑组合物包含a)作为组分A,3至79重量%的一种或多种苯乙烯共聚物,其不具有源自马来酸酐的单元,b)作为组分B,15至91重量%的一种或多种 具有基于整个组分B的0.1至0.2重量%的三丙酮二胺(TAD)端基的聚酰胺,c)作为组分C,5至50重量%的一种或多种冲击改性橡胶,d)为 组分D,1至25重量%的苯乙烯共聚物,其基于整个组分D,具有1.9至2.3重量%的源自马来酸酐的单元,e)作为组分E,0至40重量% f)作为组分F,0至50重量%的一种或多种纤维或颗粒填料,g)作为组分G,0至40重量%的其它添加剂,其中模塑组合物包含较少的 0.1重量%以上的邻苯二甲酸酐和成分A〜D的总量,如果合适,E〜G为100重量% 重量。