POLYOXYMETHYLENES FOR DIESEL APPLICATIONS
    5.
    发明申请
    POLYOXYMETHYLENES FOR DIESEL APPLICATIONS 审中-公开
    用于柴油应用的聚氧乙烯

    公开(公告)号:US20110313086A1

    公开(公告)日:2011-12-22

    申请号:US13148727

    申请日:2010-02-08

    IPC分类号: C08L71/02 C08K13/02

    摘要: Thermoplastic molding materials comprising A) 10 to 99.99% by weight of a polyoxymethylene homo- or copolymer, B) 0.01 to 5% by weight of an imidazole of the general formula where the R1 to R4 radicals are each independently defined as follows: R1 is an alkyl radical having 1 to 5 carbon atoms, R2 to R4 are each hydrogen, an alkyl radical having 1 to 5 carbon atoms, C) 0 to 5% by weight of an alkaline earth metal oxide, D) 0 to 80% by weight of further additives, where the sum of the percentages by weight of components A) to D) adds up to 100%.

    摘要翻译: 包括A)10至99.99重量%的聚甲醛均聚物或共聚物的热塑性成型材料,B)0.01至5重量%的通式为咪唑,其中R 1至R 4基团各自独立定义如下:R 1为 具有1至5个碳原子的烷基,R 2至R 4各自为氢,具有1至5个碳原子的烷基,C)0至5重量%的碱土金属氧化物,D)0至80重量% 的其他添加剂,其中组分A)至D)的重量百分比之和总计高达100%。

    Process for working up particulate crude polyoxymethylene
    7.
    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)。

    Polyamides
    8.
    发明授权
    Polyamides 有权
    聚酰胺

    公开(公告)号:US08268955B2

    公开(公告)日:2012-09-18

    申请号:US10531225

    申请日:2003-10-28

    IPC分类号: C08G69/08

    CPC分类号: C08G69/02 C08G69/48

    摘要: Polyamide containing a compound which bears at least one hydroxy group and has chemical bonding by way of an amide group to the end of the polymer chain, process for preparing this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.

    摘要翻译: 含有至少一个羟基并通过酰胺基化学键合到聚合物链末端的化合物的聚酰胺,以及制备该聚酰胺的方法,以及包含至少一种这样的聚酰胺的纤维,膜和模制品 。

    Continuous method for the production of polyamides
    10.
    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。