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7 条记录 (耗时 0.017 秒)

    Method for postpolymerization of polyamide granules after polymerization in melt and an equipment for performing this method
    5.
    发明授权
    Method for postpolymerization of polyamide granules after polymerization in melt and an equipment for performing this method 失效
    熔融聚合后聚酰胺颗粒的后聚合方法和用于进行该方法的设备

    公开(公告)号：US4755590A

    公开(公告)日：1988-07-05

    申请号：US928973

    申请日：1986-11-10

    申请人： Vladimir Kubanek ,  Zdenek Sterbacek ,  Jaroslav Kralicek

    发明人： Vladimir Kubanek ,  Zdenek Sterbacek ,  Jaroslav Kralicek

    IPC分类号： B01J19/00 ,  B01J19/28 ,  C08G69/18 ,  C08G69/46

    CPC分类号： C08G69/18 ,  B01J19/0013 ,  B01J19/285 ,  C08G69/46 ,  B01J2219/00063 ,  B01J2219/00094 ,  B01J2219/00132 ,  B01J2219/00155 ,  B01J2219/00166

    摘要： The invention pertains to a method for postpolymerization of granules of polyamide based on .epsilon.-caprolactam and formed by the anionic polymerization in melt and solves the problem of decreasing the content of low-molecular-weight substances in granules. At the same time, the invention pertains to an arrangement of equipment for performing the postpolymerization. The objective of the invention is a method for the continuous postpolymerization of polyamide based on .epsilon.-caprolactam and formed by the anionic polymerization in melt, wherein the postpolymerization proceeds in two stages, while the granules are heated in the first stage to the required temperature of postpolymerization 160.degree. to 200.degree. C. for 5 to 30 minutes during their vertical transport and allowed at this temperature for 2 to 6 hours in the second stage without mechanical intervention at their gravitation transport which is assisted by vibrations or a reservoir.An equipment for performing the method according to the invention which is formed by a two-stage unit consisting of a vertical vibration conveyer-heat exchanger and a reservoir, while the heat exchanger is provided with a heating jacket, a hopper in the lower part, and a heated overfall in the upper part, through which it is connected with the reservoir, while the reservoir is furnished outside with a jacket and a vibrator, inside with two plate heat-exchangers with the heating controlled by a temperature sensor, and in the lower part with a turnstile.

    摘要翻译： 本发明涉及一种基于ε-己内酰胺的聚酰胺颗粒的后聚合方法，其通过阴离子聚合在熔体中形成，并解决了降低颗粒中低分子量物质含量的问题。 同时，本发明涉及用于进行后聚合的设备的布置。 本发明的目的是一种用于基于ε-己内酰胺的聚酰胺的连续后聚合并通过在熔体中的阴离子聚合形成的方法，其中后聚合进行两个阶段，同时将颗粒在第一阶段加热至所需温度 后聚合160°至200℃，在其垂直运输期间持续5至30分钟，并且在该温度下在第二阶段允许其在由振动或储层辅助的重力运输下的机械干预下进行2至6小时。 一种用于执行根据本发明的方法的设备，其由由垂直振动输送器 - 热交换器和储存器组成的两级单元形成，而热交换器设置有加热套，下部的料斗， 在上部设有一个加热的溢流口，通过它与储存器连接，而储存器外部设有一个外壳和一个振动器，里面有两个板式换热器，加热由温度传感器控制，在 下部有一个十字转门。

    Method of the Preparation of Vulcanization Mixtures by the De-Vulcanization of Waste Rubber
    6.
    发明申请
    Method of the Preparation of Vulcanization Mixtures by the De-Vulcanization of Waste Rubber 审中-公开
    通过废橡胶脱硫制备硫化混合物的方法

    公开(公告)号：US20080287558A1

    公开(公告)日：2008-11-20

    申请号：US12095219

    申请日：2006-11-30

    申请人： Vladimir Kubanek ,  Miroslav Durdak ,  Vladimir Caska ,  Pavel Smetana

    发明人： Vladimir Kubanek ,  Miroslav Durdak ,  Vladimir Caska ,  Pavel Smetana

    IPC分类号： C08J11/28

    CPC分类号： C08J11/28 ,  C08J2321/00 ,  C08K5/43 ,  Y02W30/706 ,  C08L21/00

    摘要： Waste rubber in the from of crumbs, mainly from automobile tires, but also from other used rubber products including waste rubber formed in the course of their manufacturing, is mixed in a kneader, calender, or extruder with a compound containing the chemical group —SO2—NH—. Subsequently, at temperatures up to 180° C. the rubber crumbs are de-vulcanized within 15-20 minutes, the de-vulcanization degree being controlled by the de-vulcanization agent concentration, and time and temperature of de-vulcanization. After the eventual addition of small amounts of extenders as oil, soot, raw rubber, inorganic filler and the vulcanization agent a vulcanization mixture is obtained that after pressing into the shape of the rubber product is subjected to a standard vulcanization process.

    摘要翻译： 主要来自汽车轮胎的面包屑中的废橡胶，还包括其制造过程中形成的废橡胶的其他二手橡胶制品，在捏合机，压延机或挤出机中与含有化学基团-SO的化合物-SO 2 -NH-。 随后，在高达180℃的温度下，橡胶屑在15-20分钟内脱硫，脱硫度由脱硫剂浓度，脱硫时间和温度控制。 在最终添加少量作为油，烟灰，生橡胶，无机填料和硫化剂的增量剂之后，获得硫化混合物，在将其压制成橡胶制品的形状进行标准硫化处理之后。

    Column for preparative liquid chromatography
    7.
    发明授权
    Column for preparative liquid chromatography 失效
    制备液相色谱柱

    公开(公告)号：US4752391A

    公开(公告)日：1988-06-21

    申请号：US086966

    申请日：1987-08-19

    申请人： Bedrich Porsch ,  Jaroslav Voslar ,  Jaroslav Rosol ,  Vladimir Kubanek

    发明人： Bedrich Porsch ,  Jaroslav Voslar ,  Jaroslav Rosol ,  Vladimir Kubanek

    IPC分类号： B01D15/08 ,  G01N30/16 ,  G01N30/60

    CPC分类号： G01N30/6069 ,  G01N2030/167 ,  G01N30/6017

    摘要： A column for preparative liquid chomatography is provided with an inlet tube (5) for injected sample, which is closed on the end with a gauze or fritted plate (6), passes through the center of a lower terminal (3), and ends in the distance equal to 70 to 90% of the total length of the column from the lower end of this tube, whereas the lower terminal (3) has at least four openings (7) or a circular slot or two half-slots which are placed outside the center of terminal on a concentric circle with diameter ranging between 40 to 70% of the inner diameter of column tube (1). The column operates in such a way, that mobile phase is introduced into the column through the center of the upper terminal (2) and a sample is injected into a sorbent through the inlet tube (5) for sample after stopping the flow of mobile phase and then the flow of mobile phase is restored.

    摘要翻译： 用于制备液体色谱柱用于注射样品的入口管（5），其末端用纱布或烧结板（6）封闭，通过下端（3）的中心，并以 该距离等于该管从该管的下端的总长度的70至90％，而下端（3）具有至少四个开口（7）或放置在圆形槽或两个半槽中 在终端的中心外部，其直径在列管（1）的内径的40至70％之间的同心圆上。 该柱以这样的方式操作，即通过上端子（2）的中心将流动相引入塔中，并且在停止流动相流动之后将样品通过入口管（5）注入吸附剂 然后恢复流动相的流动。