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    FLUOROPOLYETHER-CONTAINING POLYMER-MODIFIED SILANE, SURFACE TREATING AGENT, AND TREATED ARTICLE
    3.
    发明公开
    FLUOROPOLYETHER-CONTAINING POLYMER-MODIFIED SILANE, SURFACE TREATING AGENT, AND TREATED ARTICLE 有权
    氟聚合物聚合物硅胶，OBERFLÄCHENBEHANDLUNGSMITTELUND BEHANDELTER ARTIKEL

    公开(公告)号：EP3085749A1

    公开(公告)日：2016-10-26

    申请号：EP16163973.7

    申请日：2016-04-06

    申请人： Shin-Etsu Chemical Co., Ltd.

    发明人： SAKOH, Ryusuke ,  MATSUDA, Takashi ,  YAMANE, Yuji

    IPC分类号： C09D171/02 ,  C08G65/336

    CPC分类号： C08G65/007 ,  C08G65/336 ,  C08G2650/48 ,  C09D5/00 ,  C09D171/02

    摘要： A fluoropolyether-containing polymer-modified silane has general formula (1)

    wherein Rf is a monovalent fluorooxyalkyl or divalent fluorooxyalkylene-containing polymer residue, Y is a divalent to hexavalent hydrocarbon group which may have a silicon atom and/or a siloxane bond, W is a divalent to hexavalent hydrocarbon group which may have a silicon atom and/or a siloxane bond, R is independently an alkyl of 1 to 4 carbon atoms or phenyl, X is independently hydroxyl or a hydrolyzable group, the letters n, a and m are respectively integers from 1 to 3, 1 to 5 and 1 to 5, and α is 1 or 2. A surface treating agent containing this silane and/or a partial (hydrolytic) condensate thereof, when applied to an article, forms a coat of excellent water/oil repellency and abrasion resistance.

    摘要翻译： 含氟聚醚的聚合物改性硅烷具有通式（1），其中Rf是一价含氟氧烷基或二价含氟代氧化烯烃的聚合物残基，Y是可具有硅原子和/或硅氧烷键的二价至六价烃基，W 是可以具有硅原子和/或硅氧烷键的二价至六价烃基，R独立地为1〜4个碳原子的烷基或苯基，X独立地为羟基或可水解基团，字母n，a和m 分别为1至3,1至5和1至5的整数，且为1或2.含有该硅烷和/或其部分（水解）缩合物的表面处理剂在施用于制品时形成外涂层 具有优异的防水/拒油性和耐磨性。

    ISOLATION AND PURIFICATION METHOD OF PERFLUOROPOLYETHER COMPOUND
    4.
    发明公开
    ISOLATION AND PURIFICATION METHOD OF PERFLUOROPOLYETHER COMPOUND 审中-公开

    公开(公告)号：EP3578585A1

    公开(公告)日：2019-12-11

    申请号：EP19178141.8

    申请日：2019-06-04

    申请人： Shin-Etsu Chemical Co., Ltd.

    发明人： MATSUDA, Takashi ,  SAKANO, Yasunori

    IPC分类号： C08G65/00

    摘要： Provided is a method for efficiently and selectively isolating only a perfluoropolyether compound having a target functional group(s) from a mixture containing at least two kinds of perfluoropolyether compounds.
    The method is thus an isolation and purification method of a perfluoropolyether compound. This method is a method for isolating and purifying a perfluoropolyether compound which is contained in a mixture containing at least two kinds of perfluoropolyether compounds, and has at molecular chain ends thereof only functional groups that are nonreactive with primary amino groups. The method of the present invention includes:
    preparing:
    (A) the perfluoropolyether compound having, at molecular chain ends thereof, only functional groups that are nonreactive with primary amino groups, and having the number average molecular weight of 1,000 to 10,000,
    (B) the perfluoropolyether compound having, at at least one molecular chain end thereof, functional groups that are reactive with or are capable of forming salts with primary amino groups, and having the number average molecular weight of 1,000 to 10,000, and
    (C) the primary amino group-containing solid adsorbent;

    bringing the primary amino group-containing solid adsorbent (C) into contact with the mixture containing the perfluoropolyether compound (A) and the perfluoropolyether compound (B);
    removing, from said mixture, the perfluoropolyether compound (B) that has been adsorbed to the solid adsorbent (C); and then
    collecting the perfluoropolyether compound (A) having, at molecular chain ends thereof, only functional groups that are nonreactive with primary amino groups.