Method for producing polyamides
    1.
    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。

    Continuous method for the production of polyamides
    4.
    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。

    Continuous method for the production of polyamides
    7.
    发明申请
    Continuous method for the production of polyamides 有权
    连续生产聚酰胺的方法

    公开(公告)号:US20070161774A1

    公开(公告)日:2007-07-12

    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。

    Continuous method for multi-staged drying and subsequent condensation of a polyamide granulate
    8.
    发明授权
    Continuous method for multi-staged drying and subsequent condensation of a polyamide granulate 有权
    多级干燥和聚酰胺颗粒随后冷凝的连续方法

    公开(公告)号:US08703879B2

    公开(公告)日:2014-04-22

    申请号:US12999988

    申请日:2009-06-19

    IPC分类号: C08G69/16 C08G69/46 C08L77/00

    CPC分类号: C08G69/46 C08G69/16

    摘要: A continuous process for the multistage drying and postcondensation of polyamide pellets in the solid phase comprises 1) carrying out the predrying process in a continuous drying apparatus which is operated in countercurrent mode or in crossflow mode with inert gas or steam, or with a mixture of inert gas and steam, using a pellet temperature in the range from 70 to 200° C., and 2) Carrying out the subsequent continuous postcondensation process in a separate vertical duct with moving bed at a pellet temperature in the range from 120 to 210° C., where the duct is operated in countercurrent mode with inert gas or steam, or with a mixture of inert gas and steam, the inert gas is introduced at least two sites along the duct, and from 15 to 90% of the inert gas is introduced at the base of the vertical duct and from 10 to 85% of the inert gas is introduced in the upper half below the surface of the pellets.

    摘要翻译: 用于固相中聚酰胺粒料的多级干燥和缩聚的连续方法包括:1)在连续干燥装置中进行预干燥过程,所述连续干燥装置以逆流模式或与惰性气体或蒸汽交叉流动模式运行,或者与 惰性气体和蒸汽,使用颗粒温度在70至200℃的范围内,以及2)在具有移动床的单独的垂直管道中进行随后的连续缩聚过程,颗粒温度在120至210℃的范围内 C.其中管道以逆流模式与惰性气体或蒸汽或惰性气体和蒸汽的混合物操作,惰性气体沿着管道被引入至少两个位置,并且惰性气体的15至90% 引入垂直管道的底部,并且10至85%的惰性气体被引入颗粒表面下方的上半部分。

    METHOD FOR PRODUCING FIBER-REINFORCED COMPOSITE MATERIALS FROM POLYAMIDE 6 AND COPOLYAMIDES MADE OF POLYAMIDE 6 AND POLYAMIDE 12
    9.
    发明申请
    METHOD FOR PRODUCING FIBER-REINFORCED COMPOSITE MATERIALS FROM POLYAMIDE 6 AND COPOLYAMIDES MADE OF POLYAMIDE 6 AND POLYAMIDE 12 有权
    从聚酰胺6和聚酰胺12的聚酰胺6和共聚物制造纤维增强复合材料的方法12

    公开(公告)号:US20120107509A1

    公开(公告)日:2012-05-03

    申请号:US13382782

    申请日:2010-07-06

    IPC分类号: B05D3/02

    摘要: The present invention relates to a method for producing fiber-reinforced composite materials, in which a multiplicity of continuous filaments or woven fabric is impregnated optionally together with reinforcing materials, comprising caprolactam and other starting materials for polyamide 6 or other starting materials for copolymers of caprolactam, passed through at temperatures of 70 to 100° C., and anionically polymerized at temperatures of 100 to 190° C., and optionally repolymerized at temperatures of 90 to 170° C.

    摘要翻译: 本发明涉及一种生产纤维增强复合材料的方法,其中多根连续长丝或机织织物可选地与增强材料一起浸渍,该增强材料包括己内酰胺和其它用于聚酰胺6或其它起始原料的己内酰胺共聚物 ,在70〜100℃的温度下通过,在100〜190℃的温度下进行阴离子聚合,任选地在90〜170℃的温度下进行聚合。