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49 条记录 (耗时 0.013 秒)

    Phase boundary process for the preparation of aromatic polycarbonates using a chlorinated aromatic hydrocarbon as the polymer solvent
    1.
    发明授权
    Phase boundary process for the preparation of aromatic polycarbonates using a chlorinated aromatic hydrocarbon as the polymer solvent 失效
    使用氯化芳香烃作为聚合物溶剂制备芳族聚碳酸酯的相界面方法

    公开(公告)号：US4038252A

    公开(公告)日：1977-07-26

    申请号：US555225

    申请日：1975-03-04

    申请人： Hugo Vernaleken ,  Uwe Hucks

    发明人： Hugo Vernaleken ,  Uwe Hucks

    IPC分类号： C08G63/00 ,  C08G64/06 ,  C08G64/22 ,  C08G64/24 ,  C08G63/62

    CPC分类号： C08G64/24 ,  C08G64/06

    摘要： The present invention provides a process for the preparation of a polycarbonate by the phase boundary condensation method, by phosgenation of an aqueous alkali metal salt solution of one or more aromatic dihydroxy compounds, in which process an aromatic chlorinated hydrocarbon is used as the solvent and the synthesis of the polycarbonate is carried out in two stages, in the first stage of which the reaction of the alkali metal salt solution of the aromatic dihydroxy compound(s) with phosgene is carried out at an OH concentration of between 0.01 and 0.1% by weight of OH, relative to the aqueous phase, in the presence of 0.1 to 2.5 mol% of trialkylamine, relative to aromatic dihydroxy compound(s), and at a temperature higher than 70.degree. C, with a dwell time of less than 5 minutes, while in the second stage the polycondensation is effected by adjusting the OH concentration to 0.20 to 0.50% by weight of OH, relative to the aqueous phase, optionally with further addition of trialkylamine, at a temperature higher than 80.degree. C and with a dwell time of more than 1 minute.

    Process for the production of phosphoric acid triesters
    2.
    发明授权
    Process for the production of phosphoric acid triesters 失效
    磷酸三酯生产工艺

    公开(公告)号：US4267127A

    公开(公告)日：1981-05-12

    申请号：US60679

    申请日：1979-07-25

    申请人： Harald Selbeck ,  Claus Wulff ,  Uwe Hucks ,  Erhard Tresper ,  Hugo Vernaleken

    发明人： Harald Selbeck ,  Claus Wulff ,  Uwe Hucks ,  Erhard Tresper ,  Hugo Vernaleken

    IPC分类号： C07F9/12 ,  C07F9/09

    CPC分类号： C07F9/12

    摘要： Phosphoric acid triesters of the formula ##STR1## are produced in two or more stages by reacting phosphorus oxyhalides, phosphorus pentahalides, phosphoric acid monoester dihalides or phosphoric acid diester halides corresponding to the following general formula:ZO PO Hal.sub.2 (ZO).sub.2 PO Halwherein Z is defined as above and Hal represents Cl and/or Br with at least one hydroxyaryl compound of the formula ##STR2## in a two-phase mixture of an organic solvent an aqueous alkaline earth metal and/or alkali metal hydroxide solution.

    摘要翻译： 通过使对应于以下通式的ZO PO Hal 2（ZO）2 PO Hal的卤代卤磷，五卤化磷，五氟化五磷酸，磷酸二酯二卤化物或磷酸二酯卤化物反应制备式“IMAGE”的磷酸三酯，其中Z 定义如上，Hal表示Cl和/或Br与至少一种式“IMAGE”的羟基芳基化合物在有机溶剂碱土金属水溶液和/或碱金属氢氧化物溶液的两相混合物中。

    Method for the separate discharge of the individual phase streams of a multiple phase flow
    3.
    发明授权
    Method for the separate discharge of the individual phase streams of a multiple phase flow 失效
    分离排放多相流的各相流的方法

    公开(公告)号：US4312642A

    公开(公告)日：1982-01-26

    申请号：US126267

    申请日：1980-03-03

    申请人： Gunter Lehr ,  Karl-Dieter Lohr ,  Uwe Hucks ,  Hugo Vernaleken

    发明人： Gunter Lehr ,  Karl-Dieter Lohr ,  Uwe Hucks ,  Hugo Vernaleken

    IPC分类号： B29C48/76 ,  B01D19/00

    CPC分类号： B29C47/76 ,  B29C47/0009 ,  B29C47/766

    摘要： A method for the separate discharge of the individual phase streams of a multiple component flow comprising a high viscosity slow flowing liquid or suspension and a gas flowing at at least 100 times faster with the volumetric ratio of the gas to the liquid being greater than 1:1. The multicomponent flow is transversely fed through an inlet and directly into a rotating helical channel for conveying liquid in one direction. The channel has a liquid outlet spaced from the inlet in the one direction and a gas outlet spaced from the inlet in the opposite direction. A gas shut-off is formed between the inlet and the liquid outlet so as to effect the discharge of gas through the gas outlet in the opposite direction during the conveying of the liquid by the helical channel to the liquid outlet in the one direction.

    摘要翻译： 一种用于单独排放多组分流的单个相流的方法，其包括高粘度慢流动的液体或悬浮液和以至少100倍的速度流动的气体，其中气体与液体的体积比大于1： 1。 多组分流被横向地通过入口进料并直接进入用于在一个方向上输送液体的旋转螺旋通道。 通道具有在一个方向上与入口间隔开的液体出口和在相反方向上与入口间隔开的气体出口。 在入口和液体出口之间形成气体切断，以便在将液体通过螺旋通道沿一个方向输送到液体出口时，在相反方向上实现气体通过气体出口的排出。

    Short glass fibers covered with polymeric materials
    8.
    发明授权
    Short glass fibers covered with polymeric materials 失效
    用聚合材料覆盖的短玻璃纤维

    公开(公告)号：US4055611A

    公开(公告)日：1977-10-25

    申请号：US561827

    申请日：1975-03-25

    申请人： Uwe Hucks ,  Hugo Vernaleken

    发明人： Uwe Hucks ,  Hugo Vernaleken

    IPC分类号： D01F9/12 ,  C03C25/26 ,  D01F11/14 ,  D04H1/42 ,  B29C3/00 ,  B22D13/04 ,  B22D19/00 ,  B22D23/08

    CPC分类号： D01F11/14 ,  B29C70/12 ,  C03C25/26 ,  B29K2105/128

    摘要： This invention provides spheres of high molecular weight thermoplastics filled with short glass fibers which may be easily metered, incorporated into thermoplastic resins or fused into glass mats or shaped articles. It also provides a method of producing such spheres by treating glass fibers with a dilute (1 to 30 wt% strength) solution of the plastic having a viscosity of less than 1,000 cP. The fibers are rotated with the polymer solution and the solvent is subsequently evaporated off. Preferably, the coating plastic is a high molecular weight thermoplastic.

    摘要翻译： 本发明提供了填充有短玻璃纤维的高分子量热塑性塑料球，其可以容易地计量，并入热塑性树脂中或熔合成玻璃垫或成型制品。 它还提供了通过用粘度小于1,000cP的塑料的稀（1至30重量％强度）溶液处理玻璃纤维来生产这种球体的方法。 纤维与聚​​合物溶液一起旋转，随后将溶剂蒸发掉。 优选地，涂料塑料是高分子量热塑性塑料。

    Process for producing oligocarbonates
    10.
    发明授权
    Process for producing oligocarbonates 有权
    生产寡聚碳酸酯的方法

    公开(公告)号：US06835797B2

    公开(公告)日：2004-12-28

    申请号：US10103921

    申请日：2002-03-22

    申请人： Uwe Hucks ,  Rolf Bachmann ,  Franz Ferdinand Rhiel ,  Thomas Fischer ,  Silke Kratschmer

    发明人： Uwe Hucks ,  Rolf Bachmann ,  Franz Ferdinand Rhiel ,  Thomas Fischer ,  Silke Kratschmer

    IPC分类号： C08G6400

    CPC分类号： C08G64/307

    摘要： A continuous process for producing oligocarbonate is disclosed. The process entails in sequence the steps of a) reacting a dihydroxyaryl compound with a diaryl carbonate in the presence of a catalyst to obtain a melt and avoiding removal of released monohydroxyaryl compound and b) withdrawing the monohydroxyaryl compound by flash evaporation and c) heating the melt obtained under vacuum in an evaporator equipped with sump receiver and d) repeating at least once steps b) and then c) each at gradually increased temperatures and lowered pressures.

    摘要翻译： 公开了连续生产低聚碳酸酯的方法。 该方法按照以下步骤进行：a）在催化剂存在下使二羟基芳基化合物与碳酸二芳基酯反应，得到熔体，避免去除脱离的单羟基芳基化合物，和b）通过闪蒸蒸发除去单羟基芳基化合物，和c）加热 在装有贮槽接收器的蒸发器中在真空下获得熔体，d）重复至少一次步骤b），然后c）逐渐升高温度和降低的压力。