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77 条记录 (耗时 0.039 秒)

    Headlight for motor vehicle
    41.
    发明授权
    Headlight for motor vehicle 失效
    汽车头灯

    公开(公告)号：US5255163A

    公开(公告)日：1993-10-19

    申请号：US1806

    申请日：1993-01-08

    申请人： Rainer Neumann

    发明人： Rainer Neumann

    IPC分类号： B60Q1/14 ,  F21S8/10 ,  F21V7/22 ,  F21V9/06 ,  F21V11/00 ,  F21V11/16 ,  G02F1/15 ,  B60Q1/04

    CPC分类号： F21S48/1731 ,  F21S48/1131 ,  F21S48/1225 ,  F21S48/1394 ,  F21S48/145 ,  F21V7/22 ,  F21V9/06 ,  G02F1/15 ,  Y10S362/802

    摘要： A headlight for a motor vehicle comprises a gas discharge lamp as a light source emitting visible light and light in UV-wavelength region, a reflector having a first region which reflects the light for forming a low beam and a second region which reflects an additional light beam illuminating a region located beyond a region illuminated by the high beam, a filter arranged in a path of the additional light beam and at least partially absorbing the visible light and at least partially permeable for light in UV-wavelength region. The filter is formed by a coating which covers the second reflector region and is composed of a filtering material.

    摘要翻译： 用于机动车辆的前灯包括气体放电灯作为在UV波长区域中发出可见光和光的光源，反射器具有反射用于形成近光的光的第一区域和反射附加光的第二区域 光束照射位于由远光束照射的区域之外的区域，滤光器布置在附加光束的路径中并且至少部分地吸收可见光并且对于UV波长区域中的光至少部分可透过。 过滤器由覆盖第二反射器区域并由过滤材料构成的涂层形成。

    Production of bisphenol-A with reduced sulfur content
    44.
    发明授权
    Production of bisphenol-A with reduced sulfur content 失效
    生产具有降低硫含量的双酚A

    公开(公告)号：US07112703B2

    公开(公告)日：2006-09-26

    申请号：US11043800

    申请日：2005-01-26

    申请人： Rainer Neumann ,  Ulrich Blaschke ,  Stefan Westernacher

    发明人： Rainer Neumann ,  Ulrich Blaschke ,  Stefan Westernacher

    IPC分类号： C07C39/16

    CPC分类号： C07C37/20 ,  C07C37/70 ,  C07C37/82 ,  C07C37/84 ,  C08G64/06 ,  C07C39/16

    摘要： A process for the production of bisphenol-A having low concentration of sulphur is disclosed. The process comprise a) reacting phenol with acetone in the presence of a sulfonic acid ion exchanger to form a product mixture containing water, bisphenol-A/phenol adduct, phenol and sulfurous particles, and b) filtering the product mixture to separate the sulfurous particles to obtain a purified product mixture that contains water, phenol and bisphenol-A/phenol adduct. In one embodiment of the process further comprise distilling the purified product mixture to remove the water to obtain a first material system that contains said adduct and phenol, crystallizing the adduct, and removing the phenol by filtration using a filtering apparatus to obtain crystalline adduct. In a yet additional embodiment the process comprise crystallizing the purified product mixture to obtain a second material system that contains crystalline adduct, water and phenol and removing the phenol and water by filtration using a filtering apparatus to obtain crystalline adduct.

    摘要翻译： 公开了一种生产低浓度硫的双酚A的方法。 该方法包括a）在磺酸离子交换剂存在下使苯酚与丙酮反应，形成含有水，双酚A /苯酚加成物，苯酚和亚硫酸颗粒的产物混合物，和b）过滤产物混合物以分离出亚硫酸颗粒 以获得含有水，苯酚和双酚A /苯酚加合物的纯化产物混合物。 在该方法的一个实施方案中还包括蒸馏纯化的产物混合物以除去水以获得含有所述加合物和苯酚的第一材料体系，结晶加合物，并使用过滤装置通过过滤除去苯酚以获得结晶加合物。 在另外的实施方案中，该方法包括使纯化的产物混合物结晶以获得含有结晶加合物，水和苯酚的第二材料体系，并使用过滤装置通过过滤除去苯酚和水以获得结晶加合物。

    Dewatering of circulatory flows in the production of bisphenol A
    45.
    发明授权
    Dewatering of circulatory flows in the production of bisphenol A 失效
    双酚A生产中循环流动的脱水

    公开(公告)号：US07078573B2

    公开(公告)日：2006-07-18

    申请号：US11043275

    申请日：2005-01-26

    申请人： Rainer Neumann ,  Ulrich Blaschke ,  Stefan Westernacher

    发明人： Rainer Neumann ,  Ulrich Blaschke ,  Stefan Westernacher

    IPC分类号： C07C39/16

    CPC分类号： C07C37/84 ,  C07C37/20 ,  C07C37/685 ,  C07C37/74 ,  C07C39/16

    摘要： A process for producing bisphenol A is disclosed. The process entails a) reacting phenol with acetone in the presence of an acidic catalyst to form a reaction mixture that includes bisphenol A and water, and b) removing water from the reaction mixture by distillation in a column to obtain a bottom product, and c) separating bisphenol-A/phenol adduct from the reaction mixture by crystallization and filtration. The bottom temperature of the column is 100 to 150° C., the overhead temperature of the column is 20 to 80° C., the absolute pressure is 50 to 300 mbar at the head of the column and 100 to 300 mbar at the bottom of the column, and wherein said (c) is carried out before or after said (b).

    摘要翻译： 公开了一种生产双酚A的方法。 该方法需要在酸性催化剂的存在下使苯酚与丙酮反应，形成包括双酚A和水的反应混合物，和b）通过在塔中蒸馏从反应混合物中除去水以得到底部产物，c ）通过结晶和过滤从反应混合物中分离双酚A /苯酚加合物。 柱的底部温度为100至150℃，柱的塔顶温度为20至80℃，柱顶部的绝对压力为50至300毫巴，底部为100至300毫巴 并且其中所述（c）在所述（b）之前或之后进行。

    Production of bisphenol a with reduced isomer formation
    46.
    发明申请
    Production of bisphenol a with reduced isomer formation 审中-公开
    双酚A的生产减少异构体形成

    公开(公告)号：US20050176918A1

    公开(公告)日：2005-08-11

    申请号：US11043769

    申请日：2005-01-26

    申请人： Rainer Neumann ,  Ulrich Blaschke ,  Stefan Westernacher

    发明人： Rainer Neumann ,  Ulrich Blaschke ,  Stefan Westernacher

    IPC分类号： C07C37/20 ,  C08G64/28 ,  C08G64/30 ,  C08G64/00 ,  C07C37/68

    CPC分类号： C07C37/20 ,  C08G64/28 ,  C08G64/307 ,  C07C39/16

    摘要： A process for the production of bisphenol A is disclosed. The process entails a) mixing phenol and acetone to form a mixture, and b) bringing the mixture to a temperature of 48 to 54° C. to form a warm mixture, and c) commencing a reaction between phenol and acetone upon contacting the warm mixture with an acid ion exchange catalyst to form a product mixture that contains bisphenol A. The bisphenol A may be extracted from the product mixture by crystallization and filtration.

    摘要翻译： 公开了生产双酚A的方法。 该方法需要a）将苯酚和丙酮混合以形成混合物，和b）使混合物达到48至54℃的温度以形成温热的混合物，和c）在接触温热时开始苯酚和丙酮之间的反应 与酸性离子交换催化剂的混合物以形成含有双酚A的产物混合物。双酚A可以通过结晶和过滤从产物混合物中提取。

    Bisphenol production
    47.
    发明授权
    Bisphenol production 失效
    双酚生产

    公开(公告)号：US06723885B1

    公开(公告)日：2004-04-20

    申请号：US10129757

    申请日：2002-08-26

    申请人： Frieder Heydenreich ,  Michael Prein ,  Michael Bödiger ,  Rainer Neumann ,  Gerhard Fennhoff ,  Johan Vaes

    发明人： Frieder Heydenreich ,  Michael Prein ,  Michael Bödiger ,  Rainer Neumann ,  Gerhard Fennhoff ,  Johan Vaes

    IPC分类号： C07C3916

    CPC分类号： C07C37/685 ,  C07C37/74 ,  C07C37/84 ,  C07C39/16

    摘要： A process for the production of 2,2-bis(4-hydroxyphenyl)propane (BPA) is disclosed. The process that entails reacting acetone with phenol in the presence of cross-linked sulfonated polystyrene resins is characterised in that BPA is separated from the reaction solution downstream of the reaction unit by means of a multi-stage vacuum distillation and a subsequent single- or multi-stage layer crystallisation. The by-product stream with accumulated by-products is returned downstream of the reaction unit.

    摘要翻译： 公开了一种生产2,2-双（4-羟基苯基）丙烷（BPA）的方法。 在交联磺化聚苯乙烯树脂存在下使丙酮与苯酚反应的过程的特征在于通过多级真空蒸馏和后续的单一或多次反应将BPA从反应单元下游的反应溶液中分离出来 阶段结晶。 具有积累的副产物的副产物流返回到反应单元的下游。