利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.013 秒)

    Method for continuously producing low equivalent weight polyols using double metal cyanide catalysts
    1.
    发明授权
    Method for continuously producing low equivalent weight polyols using double metal cyanide catalysts 有权
    使用双金属氰化物催化剂连续生产低当量多元醇的方法

    公开(公告)号：US09074044B2

    公开(公告)日：2015-07-07

    申请号：US13514372

    申请日：2010-12-06

    申请人： John W. Weston ,  Carlos M. Villa ,  Jean-Paul Masy ,  Kevin C. Seavey

    发明人： John W. Weston ,  Carlos M. Villa ,  Jean-Paul Masy ,  Kevin C. Seavey

    IPC分类号： C07C41/03 ,  C08G65/26

    CPC分类号： C08G65/2663 ,  C08G65/2609 ,  C08G65/2696

    摘要： Polyether polyols having equivalent weights of up to 500 are continuously prepared in the presence of a double metal cyanide catalyst. A first step of the reaction is performed at a temperature of at least 150° C., while controlling the hydroxyl content and unreacted alkylene oxide content of the reaction mixture to within certain ranges. A portion of that reaction mixture is withdrawn and permitted to react non-isothermally to consume the unreacted alkylene oxide. This process is highly efficient, does not result in catalyst deactivation, as is commonly seen in previous processes, and does not produce a significant ultra high molecular weight tail.

    摘要翻译： 在双金属氰化物催化剂存在下，连续制备具有多达500当量重量的聚醚多元醇。 反应的第一步在至少150℃的温度下进行，同时将反应混合物的羟基含量和未反应的烯化氧含量控制在一定范围内。 将该反应混合物的一部分取出并允许非等温反应以消耗未反应的环氧烷。 该方法是高效的，不会导致催化剂失活，如在之前的方法中通常所见，并且不产生显着的超高分子量尾。

    METHOD FOR CONTINUOUSLY PRODUCING LOW EQUIVALENT WEIGHT POLYOLS USING DOUBLE METAL CYANIDE CATALYSTS
    7.
    发明申请
    METHOD FOR CONTINUOUSLY PRODUCING LOW EQUIVALENT WEIGHT POLYOLS USING DOUBLE METAL CYANIDE CATALYSTS 有权
    使用双金属氰化物催化剂连续生产低等效重量聚合物的方法

    公开(公告)号：US20120283483A1

    公开(公告)日：2012-11-08

    申请号：US13514372

    申请日：2010-12-06

    申请人： John W. Weston ,  Carlos M. Villa ,  Jean-Paul Masy ,  Kevin C. Seavey

    发明人： John W. Weston ,  Carlos M. Villa ,  Jean-Paul Masy ,  Kevin C. Seavey

    IPC分类号： C08G65/10

    CPC分类号： C08G65/2663 ,  C08G65/2609 ,  C08G65/2696

    摘要： Polyether polyols having equivalent weights of up to 500 are continuously prepared in the presence of a double metal cyanide catalyst. A first step of the reaction is performed at a temperature of at least 1500 C, while controlling the hydroxyl content and unreacted alkylene oxide content of the reaction mixture to within certain ranges. A portion of that reaction mixture is withdrawn and permitted to react non-isothermally to consume the unreacted alkylene oxide. This process is highly efficient, does not result in catalyst deactivation, as is commonly seen in previous processes, and does not produce a significant ultra high molecular weight tail.

    摘要翻译： 在双金属氰化物催化剂存在下，连续制备具有多达500当量重量的聚醚多元醇。 在至少1500℃的温度下进行反应的第一步，同时将反应混合物的羟基含量和未反应的烯化氧含量控制在一定范围内。 将该反应混合物的一部分取出并允许非等温反应以消耗未反应的环氧烷。 该方法是高效的，不会导致催化剂失活，如在之前的方法中通常所见，并且不产生显着的超高分子量尾。

    Continuous loop flow process for polyether polyol production
    10.
    发明授权
    Continuous loop flow process for polyether polyol production 有权
    聚醚多元醇生产的连续循环流程

    公开(公告)号：US08912364B2

    公开(公告)日：2014-12-16

    申请号：US12992025

    申请日：2009-05-19

    申请人： Carlos M. Villa ,  John W. Weston ,  Pradeep Jain ,  Leigh H. Thompson ,  Jean-Paul Masy

    发明人： Carlos M. Villa ,  John W. Weston ,  Pradeep Jain ,  Leigh H. Thompson ,  Jean-Paul Masy

    IPC分类号： C08G65/00 ,  C08G65/26

    CPC分类号： C08G65/2663 ,  C08G65/2609 ,  C08G65/2696 ,  Y02P20/124

    摘要： The present disclosure relates, according to some embodiments, to compositions, apparatus, methods, and systems that may be used to produce polyols, for example, polyether polyols with a narrow range of molecular weights, with little if any unsaturated byproducts, in a sustained and/or continuous reaction, with efficient heat transfer, and/or at high production rates. For example, in some embodiments, teachings of the disclosure may be used to produce polyether polyols in a continuous loop flow process. A continuous loop flow process may be practiced such that heat is effectively transferred and/or product properties (e.g., range of molecular weights) are controllable. For example, a continuous loop flow process may use one or more continuous flow loops comprising a heat exchanger, a means to move material around each loop, inlets for catalyst, monomer, initiator or starter, and an outlet for polyol product.

    摘要翻译： 根据一些实施方案，本公开涉及可用于制备多元醇的组合物，装置，方法和系统，例如具有窄范围分子量的聚醚多元醇，几乎没有不饱和副产物，在持续的 和/或连续反应，有效的热传递和/或以高生产率。 例如，在一些实施方案中，本公开的教导可用于在连续环流过程中制备聚醚多元醇。 可以实践连续环流过程，使得有效地转移热量和/或产物性质（例如，分子量范围）是可控的。 例如，连续环流过程可以使用一个或多个连续流动回路，其包括热交换器，用于在每个回路周围移动材料的装置，用于催化剂，单体，引发剂或起动器的入口以及多元醇产物的出口。