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26 条记录 (耗时 0.016 秒)

    Method for producing polyether alcohols
    1.
    发明授权
    Method for producing polyether alcohols 失效
    聚醚醇的制造方法

    公开(公告)号：US07968754B2

    公开(公告)日：2011-06-28

    申请号：US10578874

    申请日：2004-11-06

    申请人： Thomas Ostrowski ,  Raimund Ruppel ,  Eva Baum ,  Kathrin Harre

    发明人： Thomas Ostrowski ,  Raimund Ruppel ,  Eva Baum ,  Kathrin Harre

    IPC分类号： C07C41/03

    CPC分类号： C08G65/2663 ,  C08G18/4866 ,  C08G65/2696

    摘要： The invention relates to a process for the continuous preparation of polyether alcohols by reaction of alkylene oxides with H-functional starter substances in the presence of DMC catalysts, which comprises, at the beginning of the process a) firstly placing initial charge material and DMC catalyst in a reactor, b) metering in alkylene oxide so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 100 to 3000 seconds, c) metering in starter substance during or after step b) so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 5 to 500 seconds, d) after the fill level in the reactor which is desired for continuous operation of the reactor has been reached, taking product off continuously from the reactor while at the same time metering in starter substance and alkylene oxides in such an amount that the fill level in the reactor remains constant and metering in DMC catalyst so that the catalyst concentration necessary for continuous operation of the reactor is maintained in the reactor.

    摘要翻译： 本发明涉及一种通过在DMC催化剂存在下使烯化氧与H官能起始物质反应来连续制备聚醚醇的方法，该方法在方法开始时包括：a）首先将初始的电荷材料和DMC催化剂 在反应器中，b）在环氧烷中计量，使得在100至3000秒的时间内达到维持反应器连续操作的计量速率，c）在步骤b）期间或之后计量起始物质，使得 在5至500秒的时间内达到维持反应器连续运行的计量率，d）在达到反应器连续运行所需反应器的填充量后，连续停止生产 同时在起始物质和环氧烷中同时计量反应器中的填充水平保持恒定并在DMC催化剂中计量的量 使得在反应器中保持连续操作反应器所需的催化剂浓度。

    Method for producing polyurethane-soft foam materials
    2.
    发明授权
    Method for producing polyurethane-soft foam materials 失效
    生产聚氨酯软泡沫材料的方法

    公开(公告)号：US07625954B2

    公开(公告)日：2009-12-01

    申请号：US11575165

    申请日：2005-09-20

    申请人： Kathrin Harre ,  Raimund Ruppel ,  Berend Eling

    发明人： Kathrin Harre ,  Raimund Ruppel ,  Berend Eling

    IPC分类号： C08G18/28

    CPC分类号： C08G18/4072 ,  C08G18/10 ,  C08G18/4837 ,  C08G18/4866 ,  C08G18/7664 ,  C08G65/2663 ,  C08G65/2696 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  C08G18/48 ,  C08G18/40

    摘要： The invention relates to a process for producing flexible polyurethane foams, in particular molded flexible polyurethane foams, by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, wherein at least one polyether alcohol bi) which has been prepared by means of a DMC catalyst and has a hydroxyl number in the range from 15 to 35 mg KOH/g, and ethylene oxide content in the range from 5 to 18% by weight, based on the total weight of the polyether alcohol and an end block of ethylene oxide and propylene oxide having an ethylene oxide content of from 25 to 75% by weight, based on the amount of alkylene oxide in the end block, is used as compound b) having at least two hydrogen atoms which are reactive toward isocyanate groups.

    摘要翻译： 本发明涉及通过使a）多异氰酸酯与b）具有至少两个对异氰酸酯基反应的氢原子的化合物来生产柔性聚氨酯泡沫，特别是模制柔性聚氨酯泡沫的方法，其中至少一种聚醚醇bi） 已经通过DMC催化剂制备，羟值为15至35mg KOH / g，环氧乙烷含量为5至18重量％，基于聚醚醇的总重量 并且使用环氧乙烷和环氧丙烷的端嵌段，其具有25至75重量％的环氧乙烷含量，基于端嵌段中的环氧烷烃的量，作为具有至少两个氢原子的化合物b），其为 对异氰酸酯基反应。

    Method for producing polyrethane soft foam materials
    5.
    发明授权
    Method for producing polyrethane soft foam materials 失效
    聚氨酯软泡沫材料的制造方法

    公开(公告)号：US08362099B2

    公开(公告)日：2013-01-29

    申请号：US11574898

    申请日：2005-09-20

    申请人： Kathrin Harre ,  Inge Rotermund ,  Raimund Ruppel ,  Berend Eling

    发明人： Kathrin Harre ,  Inge Rotermund ,  Raimund Ruppel ,  Berend Eling

    IPC分类号： C08G18/28

    CPC分类号： C08G18/4812 ,  C08G18/12 ,  C08G18/4072 ,  C08G18/4837 ,  C08G18/4866 ,  C08G65/2663 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  C08G18/40

    摘要： Process for producing flexible polyurethane foams in particular molded flexible polyurethane foams, by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, wherein the component b) comprises b1a) at least one polyether alcohol having an end block of ethylene oxide units which has been added on by means of DMC catalysis and makes up not more than 10% by weight of the weight of the alkylene oxide added on by means of DMC catalysis, and/or b1b) at least one polyether alcohol comprising a terminal mixture of ethylene oxide and propylene oxide which has been added on by means of DMC catalysis and has an ethylene oxide content in the mixture of at least 25% by weight, and also b2a) at least one polyether alcohol or comprising exclusively propylene oxide units, and/or b2b) at least one graft polyether alcohol.

    摘要翻译： 通过使a）多异氰酸酯与b）具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物来制备柔性聚氨酯泡沫，特别是模制的柔性聚氨酯泡沫的方法，其中组分b）包含b1a）至少一种具有 通过DMC催化加成的环氧乙烷单元的末端嵌段，并且通过DMC催化加成不超过10重量％的加成环氧烷烃的重量，和/或b1b）至少一种聚醚 醇，其包含环氧乙烷和环氧丙烷的末端混合物，其已经通过DMC催化加入并且其混合物中的环氧乙烷含量为至少25重量％，并且还包含至少一种聚醚醇，或者包括至少一种聚醚醇 环氧丙烷单元和/或b2b）至少一种接枝聚醚醇。