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    • 31. 发明申请
    • Perioxidic perfluoropolyethers
    • 过氧化全氟聚醚
    • US20050192413A1
    • 2005-09-01
    • US11063996
    • 2005-02-24
    • Giuseppe MarchionniPier Guarda
    • Giuseppe MarchionniPier Guarda
    • C07C69/708C08G65/00C08G65/32C08G65/48C08J3/09C08G59/14C07C409/24C07C409/44
    • C08G65/32C08G65/007
    • Peroxidic perfluoropolyethers having formula: X1—O(CF2O)n1(CF2CF2O)m1(CF2(CF2)zCF2O)p1(O)h—X2   (I) wherein: X1 and X2, equal to or different from each other, are chain end groups selected between —CF2COF and —COF; n1, m1, p1 and h are integers such that the number average molecular weight is in the range 700-100,000; z=1 or 2; with the proviso that: the m1/n1 ratio is between 0.2 and 10; the p1/(n1+m1) ratio is lower than 0.05; the h/(n1+m1+p1) ratio is such that the PO content, defined as grams of active oxygen/100 g of compound, is in the range 0.8-4.5, preferably 1.4-3.8; the perfluorooxyalkylene units being statistically distributed along the polymeric chain.
    • 具有下式的过氧化全氟聚醚:<?in-line-formula description =“In-line Formulas”end =“lead”?> X 1 -O(CF 2 O) (CF 2)2(CF 2)2(CF 2)(CF 2)(CF 2) (O) > 2 <?in-line-formula description =“In-line Formulas”end =“tail”?>其中:X 1和X 2 < SUB>,彼此相同或不同,是在-CF 2 COF和-COF之间选择的链端基; n1,m1,p1和h是数均分子量在700-100,000范围内的整数; z = 1或2; 条件是:m1 / n1比在0.2和10之间; p1 /(n1 + m1)比低于0.05; h /(n1 + m1 + p1)的比例使得定义为活性氧克数/ 100g化合物的PO含量在0.8-4.5,优选1.4-3.8的范围内; 全氟氧化烯单元沿着聚合物链统计分布。
    • 40. 发明授权
    • Method for preparing carbonylic perfluoropolyethers
    • 制备羰基全氟聚醚的方法
    • US09249260B2
    • 2016-02-02
    • US12595037
    • 2008-04-08
    • Ugo De PattoGiuseppe MarchionniPier Antonio Guarda
    • Ugo De PattoGiuseppe MarchionniPier Antonio Guarda
    • C07C43/30C07C53/46C08G65/00C08G65/322
    • C08G65/007C08G65/322
    • A process for preparing perfluoropolyethers of formula T-O—(RF)z-T′  (I) wherein: T, T' are end groups, z=0 or 1; RF is a perfluoro(poly)oxyalkylene chain containing one or more fluorooxyalkylene repeating units selected from the group consisting of (CF2O), —(CF(CF3)O)—, —(CF2CF2O)—, —(CF2CF(CF3)O)—, —(CF(CF3)CF2O)—, —(CF2CF2CF2O)—, —(CF2CF2CF2CF2O)—, and —(CF2)j—CFZ—O— wherein j is an integer from 0 to 3, and Z is a fluorooxyalkylene chain comprising from 1 to 20 repeating units selected from the above reported fluorooxyalkylene units; comprising the reduction of peroxidic perfluoropolyethers comprising one or more of the above defined repeating units by using gaseous hydrogen in the presence of a catalyst comprising one or more metals of the VIII group supported on graphitic materials.
    • 制备式T-O-(RF)z-T'(I)的全氟聚醚的方法,其中:T,T'是端基,z = 0或1; RF是包含选自(CF 2 O), - (CF(CF 3)O) - , - (CF 2 CF 2 O) - , - (CF 2 CF(CF 3)O)中的一种或多种氧代烯烃重复单元的全氟(聚)氧化烯链, - (CF(CF 3)CF 2 O) - , - (CF 2 CF 2 CF 2 O) - , - (CF 2 CF 2 CF 2 CF 2 O) - 和 - (CF 2)j-CFZ-O-其中j为0至3的整数,Z为氟氧化烯 链,其包含1至20个选自上述氟氧化烯单元的重复单元; 包括通过在包含一种或多种负载在石墨材料上的VIII族的金属的催化剂存在下使用气态氢来还原包含一个或多个上述定义的重复单元的过氧化全氟聚醚。