利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

78 条记录 (耗时 0.02 秒)

    Method for preparing a composition comprising perfluoropolyether having a carboxyl group at one terminal.
    6.
    发明公开
    Method for preparing a composition comprising perfluoropolyether having a carboxyl group at one terminal. 有权
    制造方法的全氟聚醚构成在一端具有羧基

    公开(公告)号：EP2905298A1

    公开(公告)日：2015-08-12

    申请号：EP15152967.4

    申请日：2015-01-29

    申请人： Shin-Etsu Chemical Co., Ltd.

    发明人： Yamane, Yuji ,  Sakano, Yasunori

    IPC分类号： C08G65/00 ,  C08G65/30 ,  C08G65/323

    CPC分类号： C08G65/00 ,  C08G65/007 ,  C08G65/30 ,  C08G65/3236 ,  Y02P20/544

    摘要： An object of the present invention is to provide a method for efficiently and highly selectively preparing a composition comprising a perfluoropolyether having a carboxyl group at one terminal at a higher ratio. The present invention provides a method for increasing a ratio of a perfluoropolyether having a carboxyl group at one terminal, relative to a total amount of the perfluoropolyether having a carboxyl group at one terminal and a perfluoropolyether having carboxyl groups at both terminals in a composition comprising these perfluoropolyethers, wherein the method comprises a step of subjecting the composition to chromatography in which a moving phase is supercritical or subcritical state carbon dioxide of the specific temperature and the specific pressure, and a stationary phase is silica gel to thereby collect a fraction containing the perfluoropolyether having a carboxyl group at one terminal at a higher ratio. Further, present invention provides for increasing a ratio of a perfluoropolyether having a carboxyl group at one terminal, relative to a total amount of the perfluoropolyether having a carboxyl group at one terminal, a perfluoropolyether having carboxyl groups at both terminals and a perfluoropolyether having no carboxyl group at any terminal perfluoropolyether, in a composition comprising these perfluoropolyethers, wherein the method comprises a step of subjecting the composition to chromatography in which a moving phase is supercritical or subcritical state carbon dioxide of the specific temperature and the specific pressure, and a stationary phase is silica gel to thereby collect a fraction containing the perfluoropolyether having a carboxyl group at one terminal at a higher ratio.

    摘要翻译： 本发明的一个目的是提供一种用于在一个终端以较高的比率有效且高选择性地制备组合物，其包括具有羧基的全氟聚醚的方法。 本发明提供了用于在一个终端增加具有羧基的全氟聚醚的比例，相对于全氟聚醚的总量的一个末端具有羧基和具有羧基的全氟聚醚的两末端中的组合物，其包括本文的方法 全氟聚醚，worin所述方法包括使所述组合物，其中流动相为特定温度和特定压力的超临界或亚临界状态的二氧化碳层析的步骤，和一个固定相是硅胶，从而收集含全氟聚醚的一小部分 具有羧基在一个末端以更高的比率。 另外，本发明提供了用于在一个终端在一个末端，相对于具有羧基的全氟聚醚的总量增加具有羧基的全氟聚醚的比率，不具有羧基在两末端具有羧基的全氟聚醚和全氟聚醚 在任何终端的全氟聚醚基团，在包括合成的全氟聚醚的组合物，worin所述方法包括使所述组合物，其中流动相为特定温度和特定压力的超临界或亚临界状态的二氧化碳层析的步骤，和一个固定相 是硅胶，从而收集含具有羧基的全氟聚醚的一小部分在一个末端以更高的比率。

    ETHER COMPOSITION
    7.
    发明公开
    ETHER COMPOSITION 有权
    ETHERZUSAMMENSETZUNG

    公开(公告)号：EP2236559A1

    公开(公告)日：2010-10-06

    申请号：EP09704557.9

    申请日：2009-01-22

    申请人： Asahi Glass Company, Limited

    发明人： SHIRAKAWA, Daisuke

    IPC分类号： C08L71/02 ,  C08G65/323 ,  C10M155/00 ,  C10N20/04 ,  C10N30/06 ,  C10N40/18

    CPC分类号： C08G65/007 ,  C08G65/337 ,  C08G2650/48 ,  C08L71/02

    摘要： To provide an ether composition having a high fixative to a substrate, which has a low surface friction coefficient when formed into a coating film, and a lubricant:
    An ether composition comprising at least two ether compounds (A) each of which has from 1 to 4 groups represented by the following formula (X) and from 0 to 3 groups represented by the following formula (Z), with the total of the groups represented by the formula (X) and the groups represented by the formula (Z) being 4:

            HO-(CH 2 CH 2 O) a ·(CH 2 CH(OH)CH 2 O) b -Q-     (X),

            CF 3 (CF 2 ) s O(CF 2 CF 2 O) g -     (Z),

    provided that in the above formulae (X) and (Z), a is an integer of from 0 to 100, b is 0 or 1, s is an integer of from 0 to 19, g is an integer of from 3 to 200, and Q is a polyfluorinated polymethylene group or a polyfluorinated polymethylene group having an etheric oxygen atom.

    摘要翻译： 提供具有高固定性的醚组合物，其在形成涂膜时具有低表面摩擦系数的基材和润滑剂。一种醚组合物，其包含至少两种醚化合物（A），每个醚化合物（A）具有1至 由下式（X）表示的4个基团和由下式（Z）表示的0至3个基团，由式（X）表示的基团和由式（Z）表示的基团的总数为4 ：€ƒ€ƒ€ƒ€ƒ€ƒ€ƒHO-（CH 2 CH 2 O）a·（CH 2 CH（OH）CH 2 O）b -Q-€ƒ€ƒ€ ƒ（X），€ƒ€ƒ€ƒ€ƒ€ƒ€ƒCF3（CF 2）s O（CF 2 CF 2 O）g - €ƒ€ƒ€ƒ€ƒ（Z ），条件是在上述式（X）和（Z）中，a为0〜100的整数，b为0或1，s为0〜19的整数，g为3〜 200，Q为多氟化聚亚甲基或具有醚性氧原子的多氟化聚亚甲基。