利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

111 条记录 (耗时 0.033 秒)

    PROCESS FOR THE PREPARATION OF POLYCARBONATE
    71.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYCARBONATE 失效
    制备聚碳酸酯的方法

    公开(公告)号：US20110009592A1

    公开(公告)日：2011-01-13

    申请号：US12829845

    申请日：2010-07-02

    申请人： Pieter Ooms ,  Andreas Bulan ,  Johann Rechner ,  Rainer Weber ,  Marc Buts ,  Johan Vanden Eynde

    发明人： Pieter Ooms ,  Andreas Bulan ,  Johann Rechner ,  Rainer Weber ,  Marc Buts ,  Johan Vanden Eynde

    IPC分类号： C08G64/04

    CPC分类号： C08G64/307

    摘要： A combined process for the preparation of polycarbonate from bisphenols and diaryl carbonates, the monophenol liberated being reacted again for the preparation of the diaryl carbonate and the alkali metal halide forming in the preparation of the diaryl carbonate being converted by electrochemical oxidation, optionally over a gas diffusion electrode, into chlorine and alkali hydroxide solution, the chlorine being recycled into the preparation of the phosgene and the alkali hydroxide solution being recycled into the preparation of the diaryl carbonate.

    摘要翻译： 用于从双酚和碳酸二芳基酯制备聚碳酸酯的组合方法中，释放的单酚再次反应，用于制备碳酸二芳基酯和在制备碳酸二芳基酯时通过电化学氧化转化而形成的碱金属卤化物，任选地在气体 扩散电极，进入氯和碱性氢氧化物溶液中，氯被循环到光气的制备中，碱性氢氧化物溶液被循环到碳酸二芳基酯的制备中。

    PROCESSES FOR PREPARING DIARYL AND/OR ALKYLARYL CARBONATES FROM DIALKYL CARBONATES
    74.
    发明申请
    PROCESSES FOR PREPARING DIARYL AND/OR ALKYLARYL CARBONATES FROM DIALKYL CARBONATES 有权
    从碳酸二甲酯制备二元和/或烷基碳酸的方法

    公开(公告)号：US20090076293A1

    公开(公告)日：2009-03-19

    申请号：US12210279

    申请日：2008-09-15

    申请人： Andre Dux ,  Pieter Ooms ,  Johann Rechner ,  Matthias Bohm ,  Kaspar Hallenberger ,  Georg Ronge ,  Johan Vanden Eynde

    发明人： Andre Dux ,  Pieter Ooms ,  Johann Rechner ,  Matthias Bohm ,  Kaspar Hallenberger ,  Georg Ronge ,  Johan Vanden Eynde

    IPC分类号： C07C68/06

    CPC分类号： C07C68/06 ,  C07C69/96

    摘要： Processes comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in the presence of a transesterification catalyst in a first reaction column, the first reaction column comprising a top section, a bottom section, a rectifying section in an upper portion of the column and a reaction zone below the rectifying section; feeding a bottom product from the first reaction column to a further reaction column; the bottom product comprising a diaryl carbonate, an alkylaryl carbonate, or both, and residual unreacted dialkyl carbonate and aromatic hydroxy compound; the further reaction column comprising a top section, a rectifying section in an upper portion of the column and a reaction zone below the rectifying section; and reacting the residual reacted dialkyl carbonate and aromatic hydroxy compound in the further reaction column; feeding a process stream to a distillation column, the process stream comprising a mixture of unreacted dialkyl carbonate and one or more reaction-product alcohols drawn from the first reaction column, the further reaction column, or both, such that the unreacted dialkyl carbonate is separated from the one or more reaction-product alcohols; and recycling the separated, unreacted dialkyl carbonate to the first reaction column; wherein the further reaction column comprises one or more condensers, and heat of condensation from the one or more condensers is fed back into the process.

    摘要翻译： 方法包括：在第一反应塔中的酯交换催化剂存在下使碳酸二烷基酯和芳族羟基化合物反应，所述第一反应塔包括塔的上部的顶部，底部，精馏段和 整流段下方的反应区; 将底部产物从第一反应塔进料至另一反应塔; 底部产物包含碳酸二芳基酯，碳酸二烷基酯或二者，和残留的未反应的碳酸二烷基酯和芳族羟基化合物; 所述另外的反应塔包括顶部，所述塔的上部的精馏部和所述精馏部下方的反应区; 并使残留的反应后的碳酸二烷基酯和芳香族羟基化合物反应进一步反应塔中; 将工艺流输送到蒸馏塔，所述工艺流包含未反应的碳酸二烷基酯和从第一反应塔，进一步的反应塔或两者中抽出的一种或多种反应产物醇的混合物，使得未反应的碳酸二烷基酯被分离 由一种或多种反应产物醇; 并将分离的未反应的碳酸二烷基酯再循环到第一反应塔中; 其中所述另外的反应塔包括一个或多个冷凝器，并且将来自所述一个或多个冷凝器的冷凝热反馈到所述方法中。

    Double-metal cyanide catalysts for preparing polyether polyols
    77.
    发明授权
    Double-metal cyanide catalysts for preparing polyether polyols 失效
    用于制备聚醚多元醇的双金属氰化物催化剂

    公开(公告)号：US06852663B2

    公开(公告)日：2005-02-08

    申请号：US10138080

    申请日：2002-05-03

    申请人： Pieter Ooms ,  Jöerg Hofmann ,  Walter Schäfer

    发明人： Pieter Ooms ,  Jöerg Hofmann ,  Walter Schäfer

    IPC分类号： B01J27/26 ,  C08G65/26 ,  B01J31/00

    CPC分类号： C08G65/2663 ,  B01J27/26

    摘要： The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxide on to a starter compound containing active hydrogen atoms, wherein the DMC catalyst comprises a) at least one double-metal cyanide compound; b) at least one organic complexing ligand which is not a polyether, polyester, polycarbonate, polyalkylene glycol sorbitan ester, polyalkylene glycol glycidyl ether, glycidyl ether, glycoside, carboxylic acid ester of polyhydric alcohol, cyclodextrin, phosphorus compound, α,β-unsaturated carboxylic acid ester or ionic surfactant compound; c) at least one polyether; and d) at least one polyester, polycarbonate, polyalkylene glycol sorbitan ester, polyalkylene glycol glycidyl ether, glycidyl ether, glycoside, carboxylic acid ester of polyhydric alcohol, cyclodextrin, phosphorus compound, α,β-unsaturated carboxylic acid ester or ionic surfactant compound. The catalyst of the present invention has increased activity in the preparation of a polyether polyol.

    摘要翻译： 本发明涉及用于通过将烯化氧加成到含有活性氢原子的起始化合物上制备聚醚多元醇的双金属氰化物催化剂，其中DMC催化剂包含a）至少一种双金属氰化物化合物 ; b）至少一种不是聚醚，聚酯，聚碳酸酯，聚亚烷基二醇脱水山梨糖醇酯，聚亚烷基二醇缩水甘油醚，缩水甘油醚，糖苷，多元醇的羧酸酯，环糊精，磷化合物，α，β-不饱和的有机络合配体 羧酸酯或离子表面活性剂化合物; c）至少一种聚醚; 和d）至少一种聚酯，聚碳酸酯，聚亚烷基二醇脱水山梨糖醇酯，聚亚烷基二醇缩水甘油醚，缩水甘油醚，糖苷，多元醇的羧酸酯，环糊精，磷化合物，α，β-不饱和羧酸酯或离子表面活性剂化合物。 本发明的催化剂在制备聚醚多元醇时具有增加的活性。

    Process for the preparation of aryl carbonates
    80.
    发明授权
    Process for the preparation of aryl carbonates 失效
    制备芳基碳酸酯的方法

    公开(公告)号：US5602271A

    公开(公告)日：1997-02-11

    申请号：US494111

    申请日：1995-06-23

    申请人： Pieter Ooms ,  Hans-Josef Buysch ,  Norbert Sch on

    发明人： Pieter Ooms ,  Hans-Josef Buysch ,  Norbert Sch on

    IPC分类号： B01J21/06 ,  B01J23/648 ,  C07B61/00 ,  C07C68/02 ,  C07C69/96

    CPC分类号： C07C68/02

    摘要： Carbonates with aromatic ester groups are prepared by reaction of aromatic monohydroxy compounds with phosgene or with chloroformic acid esters of aromatic monohydroxy compounds, whereby operations are carried out at a temperature in the range of 50.degree. to 450.degree. C. and at a pressure in the range of 0.05 to 20 bar in the presence of metallates of the elements of groups IIIa, IVa, Va, VIa, IIIb, IVb, Vb, VIb, VIIb, and VIII of the Mendeleev periodic system as heterogeneous catalysts.

    摘要翻译： 具有芳族酯基的碳酸酯通过芳族单羟基化合物与光气或芳族单羟基化合物的氯甲酸酯的反应制备，由此操作在50-450℃的温度和 在作为多相催化剂的Mendeleev周期系统的IIIa，IVa，Va，VIa，IIIb，IVb，Vb，VIb，VIIb和VIII族元素的金属盐存在下，其范围为0.05至20巴。