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18 条记录 (耗时 0.012 秒)

    Process for the preparation of stabilized polycarbonate
    1.
    发明授权
    Process for the preparation of stabilized polycarbonate 有权
    制备稳定化聚碳酸酯的方法

    公开(公告)号：US06797837B2

    公开(公告)日：2004-09-28

    申请号：US10407595

    申请日：2003-04-04

    申请人： Christian Kords ,  Jürgen Heuser ,  Antonio Ortiz

    发明人： Christian Kords ,  Jürgen Heuser ,  Antonio Ortiz

    IPC分类号： C07C6996

    CPC分类号： C08G64/40 ,  C08G64/24

    摘要： A process for preparing an emulsion is disclosed. The process entails mixing an aqueous mineral acid that contains phosphorous in an organic solvent, the mixing being continuous and with the degree of intensity sufficient to form a homogeneous emulsion. The emulsion prepared by the process is useful in the process of preparing polycarbonate by the interfacial process. Accordingly the washed organic polycarbonate that has been washed without the use of a phosphorous containing mineral acid solution is mixed with the novel emulsion. The resulting polycarbonate is characterized by its improved thermal stability.

    摘要翻译： 公开了一种制备乳液的方法。 该方法需要在有机溶剂中混合含有磷的含水无机酸，混合是连续的，并具有足以形成均匀乳液的强度。 通过该方法制备的乳液可用于通过界面处理制备聚碳酸酯的方法。 因此，将洗涤后的无磷酸无机酸溶液洗涤过的有机聚碳酸酯与新乳液混合。 所得聚碳酸酯的特征在于其改进的热稳定性。

    Device and method for removing volatile components from polymer solutions
    3.
    发明授权
    Device and method for removing volatile components from polymer solutions 失效
    用于从聚合物溶液中除去挥发性组分的装置和方法

    公开(公告)号：US06627040B1

    公开(公告)日：2003-09-30

    申请号：US09673225

    申请日：2000-10-13

    申请人： Thomas Elsner ,  Jürgen Heuser ,  Christian Kords

    发明人： Thomas Elsner ,  Jürgen Heuser ,  Christian Kords

    IPC分类号： B01D306

    CPC分类号： C08F6/003 ,  F28D9/0018 ,  Y10S159/10 ,  Y10S159/15

    摘要： A device and process for the removal of volatile constituents from polymers is disclosed. The device entails a container having an inlet for a polymer solution, an outlet for the volatile components, an outflow for the polymer from which the volatile components have been removed and a heat exchanger. The heat exchanger is characterized in that it contains a plurality of specially structured channels.

    摘要翻译： 公开了用于从聚合物中除去挥发性成分的装置和方法。 该装置需要具有用于聚合物溶液的入口，用于挥发性组分的出口，已经除去挥发性组分的聚合物的流出物和热交换器的容器。 热交换器的特征在于它包含多个特别结构的通道。

    Process for the preparation of polycarbonates
    4.
    发明授权
    Process for the preparation of polycarbonates 有权
    聚碳酸酯的制备方法

    公开(公告)号：US07071284B2

    公开(公告)日：2006-07-04

    申请号：US10751621

    申请日：2004-01-05

    申请人： Hermann Kauth ,  Christian Kords ,  Jürgen Heuser

    发明人： Hermann Kauth ,  Christian Kords ,  Jürgen Heuser

    IPC分类号： C08G64/00

    CPC分类号： C08G64/24 ,  C08G64/14

    摘要： An improvement in the continuous two-phase interfacial condensation process for preparing polycarbonate is disclosed. In the process that entails at least one diphenol, phosgene, at least one chain terminator, and optionally branching agents and is carried out in the presence of a catalyst the improvement comprising maintaining the concentration of the catalyst at a level of at least 0.012 mol per mol of diphenol.

    摘要翻译： 公开了用于制备聚碳酸酯的连续两相界面缩合方法的改进。 在需要至少一种二酚，光气，至少一种链终止剂和任选的支化剂的方法中，在催化剂存在下进行，其改进包括将催化剂的浓度维持在至少0.012mol / 摩尔二酚。

    Phosgene having low content of carbon tetrachloride
    7.
    发明授权
    Phosgene having low content of carbon tetrachloride 失效
    光气四氯化碳含量低

    公开(公告)号：US06930202B1

    公开(公告)日：2005-08-16

    申请号：US09807851

    申请日：1999-10-12

    申请人： Jürgen Heuser ,  Hermann Kauth ,  Christian Kords

    发明人： Jürgen Heuser ,  Hermann Kauth ,  Christian Kords

    IPC分类号： C01B32/80 ,  C08G64/22 ,  C07C51/58 ,  C07C67/02

    CPC分类号： C08G64/22 ,  C01B32/80

    摘要： A process for producing phosgene having low content of carbon tetrachloride is disclosed. The process entails reacting carbon monoxide with chlorine in the presence of elemental carbon, in a reactor. Critically the temperature of the gas stream emerging from the reactor is restricted to 30 to 80° C. and its pressure, measured directly downstream from said reactor is restricted to 120 to 400 kPaabs. The phosgene thus produced has a content of carbon tetrachloride that is less than 150 ppm.

    摘要翻译： 公开了一种生产低含量四氯化碳的光气的方法。 在反应器中，该过程需要在元素碳的存在下使一氧化碳与氯反应。 从反应器排出的气流的温度至关重要地限制在30至80℃，并且其直接从所述反应器下游测量的压力限制在120至400千帕绝对压力。 如此制得的光气的四氯化碳含量小于150ppm。

    Strand evaporator
    8.
    发明授权
    Strand evaporator 失效
    绞线蒸发器

    公开(公告)号：US06780281B1

    公开(公告)日：2004-08-24

    申请号：US10130757

    申请日：2002-05-22

    申请人： Thomas Elsner ,  Jürgen Heuser ,  Christian Kords ,  Klemens Kohlgrüber

    发明人： Thomas Elsner ,  Jürgen Heuser ,  Christian Kords ,  Klemens Kohlgrüber

    IPC分类号： B01D108

    CPC分类号： B01D1/06 ,  B01D1/04 ,  B01D3/008 ,  B01D19/0021 ,  B29C47/0019 ,  B29C47/003 ,  B29C47/76 ,  C08F6/003 ,  Y10S159/10 ,  Y10S159/15

    摘要： A strand devolatilizer that includes a degassing container, a product inlet, a product distributor, a product outlet and a vapor outlet is disclosed. The product distributor is in the form of a tube distributor with at least one distributor tube (1) and a plurality of die tubes (2) arranged in parallel, each containing a plurality of apertures (15) in the tube wall. The die tubes (2) are preferably arranged in several planes one above the other and staggered laterally relative to one another.

    摘要翻译： 公开了一种包含脱气容器，产品入口，产品分配器，产品出口和蒸汽出口的脱脂剂。 产品分配器是具有管分配器的形式，具有至少一个分配器管（1）和平行布置的多个模具管（2），每个在管壁中包含多个孔（15）。 模具管（2）优选地布置在多个平面中，并且彼此相对并且彼此横向错开。

    Process for producing polycarbonates
    10.
    发明授权
    Process for producing polycarbonates 失效

    公开(公告)号：US06613868B2

    公开(公告)日：2003-09-02

    申请号：US10118362

    申请日：2002-04-08

    申请人： Hermann Kauth ,  Christian Kords ,  Jürgen Heuser

    发明人： Hermann Kauth ,  Christian Kords ,  Jürgen Heuser

    IPC分类号： C08G6400

    CPC分类号： C08G64/205 ,  C08G64/24

    摘要： A process for the production of polycarbonate is disclosed. The process, representing an improvement over the known interfacial polycondensation process entails introducing into the loop of a circulating reactor that additionally contains, a residence tank, an optional mixer, a pump, and a heat exchanger (i) an organic phase that contains a solvent for polycarbonate and phosgene and (ii) an aqueous phase that contains an aqueous lye solution, a dihydroxy compound and an optional monophenol to form an emulsion. Maintaining specified temperature and process conditions results in polycarbonate resin having good properties and in waste water that are characterized by their purity.