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    • 4. 发明申请
    • A METHOD FOR PREPARING CARBONYLIC PERFLUOROPOLYETHERS
    • 一种制备全氟丙基醚的方法
    • WO2008122639A1
    • 2008-10-16
    • PCT/EP2008/054230
    • 2008-04-08
    • SOLVAY SOLEXIS S.p.A.DE PATTO, UgoMARCHIONNI, GiuseppeGUARDA, Pier Antonio
    • DE PATTO, UgoMARCHIONNI, GiuseppeGUARDA, Pier Antonio
    • C08G65/00C08G65/22C08G65/32
    • C08G65/007C08G65/322
    • A process for preparing perfluoropolyethers of formula T-O-(R F ) z -T' wherein: T, T' are end groups, z = 0 or 1; R F is a perfluoro(poly)oxyalkylene chain containing one or more fluorooxyalkylene repeating units selected from (CF 2 O), -(CF(CF 3 )O)-, -(CF 2 CF 2 O)-, -(CF 2 CF(CF 3 )O)-, -(CF(CF 3 )CF 2 O)-, -(CF 2 CF 2 CF 2 O)-, -(CF 2 CF 2 CF 2 CF 2 O)-, -(CF 2 ) 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.
    • 一种制备式T-O-(>)z -T'的全氟聚醚的方法,其中:T,T'为端基,z = 0或1; R F是含有一个或多个选自(CF 2 O), - (CF 3 CF 3)的氟代氧代烯烃重复单元的全氟(聚)氧化烯链, (CF 2 CF 2)(CF 3 CF 3)2 - , - (CF 2 CF 2) O) - , - (CF(CF 3)CF 2 O) - , - (CF 2 CH 2) 2 CF 2 O 2) - , - (CF 2 CF 2)2 CF 2 其中j为0-3的整数,Z为氟代氧代烯烃链 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。
    • 5. 发明申请
    • A PROCESS FOR PREPARING HIGH PURITY MONOCARBOXYLIC PERFLUOROPOLYETHERS
    • 一种制备高纯度单羧基全氟酚的方法
    • WO2007113293A1
    • 2007-10-11
    • PCT/EP2007/053224
    • 2007-04-03
    • SOLVAY SOLEXIS S.p.A.MARCHIONNI, GiuseppeDE PATTO, UgoGUARDA, Pier Antonio
    • MARCHIONNI, GiuseppeDE PATTO, UgoGUARDA, Pier Antonio
    • C08G65/30C08G65/22
    • C08G65/007C08G65/32
    • A process for preparing monocarboxylic perfluoropolyethers of formula: A-O-(R F ) z -(CFY) t -C(O)OX (I) wherein: X is H, C 1 -C 10 alkyl, or an aryl group; Y = F, CF 3 ; t = 1, 2 or 3; A is a C 1 -C 4 perfluoroalkyl end group; z = 0 or 1; R F is a perfluorooxyalkylene chain; having a number average molecular weight in the range 180-8,000; comprising the following steps: a) one or more distillations of perfluoropolyethers (PFPE) of formula T-O-(R F ) z -T' (II) wherein: z and R F are as above defined; T, T', equal to or different from each other, are selected from acyl fluoride or carbonyl-containing functional end groups and non functional end groups to obtain one PFPE fraction of formula (II) wherein the difference between the minimum and the maximum molecular weight of the components is lower than or equal to 600; b) partial fluorination of the fraction obtained in a); c) esterification c1) and/or hydrolysis c2) of the mixture obtained in b); d) distillation of the product obtained in c2) or in c1).
    • 一种制备下式的单羧基全氟聚醚的方法:AO-(R)F - (CFY)t -C(O)OX(I )其中:X为H,C 1 -C 10烷基或芳基; Y = F,CF 3 3; t = 1,2或3; A是C 1 -C 4全氟烷基端基; z = 0或1; R F是全氟氧化烯链; 数均分子量在180-8,000范围内; 包括以下步骤:a)式TO-(R 1)Z -T'(II)的全氟聚醚(PFPE)的一种或多种蒸馏,其中:z和R F 如上所定义; T,T'彼此相同或不同,选自酰基氟或含羰基的官能端基和非官能端基,以获得一种式(II)的PFPE级分,其中最小和最大分子之间的差异 部件重量低于或等于600; b)在a)中获得的级分的部分氟化; c)在b)中获得的混合物的酯化c1)和/或水解c2); d)蒸馏在c2)或c1)中得到的产物。