Sulphonic fluorinated ionomers
    81.
    发明申请
    Sulphonic fluorinated ionomers 有权
    磺化氟化离聚物

    公开(公告)号:US20050228061A1

    公开(公告)日:2005-10-13

    申请号:US11142186

    申请日:2005-06-02

    摘要: Sulphonic fluorinated ionomers crosslinked by radical crosslinking of: A) crosslinkable sulphonic fluorinated ionomers, having equivalent weight 380-1300 g/eq and comprising: from 48% to 85% by moles of monomeric units deriving from tetrafluoroethylene (TFE); from 15% to 47% by moles of fluorinated monomeric units containing sulphonyl groups —SO2F; from 0.01% to 5% by moles of monomeric units deriving from a bis-olefin of formula: wherein: m=2-10, preferably 4-8; R1, R2, R5, R6, equal to or different from each other, are H or C1-C5 alkyl groups; B) a fluorinated compound as crosslinking radical initiator; C) a fluorinated bis-olefin of structure (I) as crosslinking agent; the radical crosslinking being carried out at a temperature in the range 250° C.-310° C., preferaably 260° C.-300° C.

    摘要翻译: 通过自由基交联交联的磺化氟化离聚物:A)具有当量重量380-1300g / eq的可交联磺化氟化离聚物,并且包含:衍生自四氟乙烯(TFE)的48%至85%摩尔的单体单元; 含有磺酰基-SO 2 F的氟化单体单元的15%至47% 衍生自下式的双烯烃的单体单元的0.01%至5%摩尔:其中:m = 2-10,优选4-8; R 1,R 2,R 5,R 6,彼此相同或不同,为H 或C 1 -C 5烷基; B)作为交联自由基引发剂的氟化化合物; C)结构(I)的氟化双烯烃作为交联剂; 自由基交联在250℃-310℃,优选260℃-300℃的温度下进行。

    Amorphous perfluorinated copolymers
    82.
    发明授权
    Amorphous perfluorinated copolymers 有权
    无定形全氟化共聚物

    公开(公告)号:US06809166B2

    公开(公告)日:2004-10-26

    申请号:US10139645

    申请日:2002-05-07

    IPC分类号: C08F11418

    摘要: Amorphous perfluorinated copolymers, comprising cyclic perfluorinated units deriving from at least two different perfluorinated comonomers, optionally with units deriving from a perfluorinated monomer containing at least one olefinic unsaturation (perfluoroolefin), or comprising cyclic perfluorinated units and units deriving from a perfluorinated monomer containing at least one olefinic unsaturation, said perfluorinated copolymers having the following combination of properties: substantial absence of unstable polar end groups, polymer Tg higher than 120° C., narrow monomeric composition distribution.

    摘要翻译: 无定形全氟化共聚物,包含衍生自至少两种不同全氟化共聚单体的环状全氟化单元,任选地衍生自含有至少一种烯属不饱和(全氟烯烃)的全氟化单体的单元,或包含环状全氟化单元和衍生自至少含有全氟化单体的单元 所述全氟化共聚物具有以下性质的组合:基本上不存在不稳定的极性端基,高于120℃的聚合物Tg,窄的单体组成分布。

    Process for obtaining (per)fluoropolyethers substituted at one or at both end groups with a halogen atom
    83.
    发明授权
    Process for obtaining (per)fluoropolyethers substituted at one or at both end groups with a halogen atom 失效
    获得在一个或两个末端基团被卤素原子取代的(全)氟聚醚的方法

    公开(公告)号:US06191314B1

    公开(公告)日:2001-02-20

    申请号:US09328446

    申请日:1999-06-09

    IPC分类号: C07C4311

    CPC分类号: C08G65/007

    摘要: A process for obtaining (per) fluoropolyethers substituted at one or at both end groups with a halogen atom selected from bromine or iodine, having the formula: A—CF2—O—(CF2CF2O)p—(CF2O)q—CF2—B  (III) wherein A=B=halogen; or A=halogen and B=COOH or F, and the halogen is I or Br; p and q are integers such as to give a number average molecular weight (MW) in the range 350-5000 and the ratio p/q=0.5-2.0. The process includes treating di- or poly-acylperoxides having an average equivalent weight in the range 350-5000, of formula: T—CF2—O—[(CF2CF2O)p—(CF2O)q—CF2—CO—O—O——CO—CF2—(OCF2)q—(OCF2CF2)p]y—OCF2—COOH  (II) with a halogen selected from iodine or bromine, in a polyhalogenated organic solvent, at temperatures between 20° and 80° C.

    摘要翻译: 一种获得在一个或两个端基上用选自溴或碘的卤素原子取代的(全)氟聚醚的方法,其具有下式:其中A = B =卤素; 或A =卤素,B = COOH或F,卤素为I或Br; p和q为整数,以得到350-5000范围内的数均分子量(MW),p / q = 0.5 -2.0。该方法包括在多卤化有机溶剂中,在20℃和80℃之间的温度下处理平均当量重量在350-5000范围内的二酰基过氧化物,式中:卤素选自碘或溴 C。

    Perfluoropolyether acylperoxides and process for their preparation
    84.
    发明授权
    Perfluoropolyether acylperoxides and process for their preparation 有权
    全氟聚醚酰基过氧化物及其制备方法

    公开(公告)号:US06187894B1

    公开(公告)日:2001-02-13

    申请号:US09328399

    申请日:1999-06-09

    IPC分类号: C08G6500

    CPC分类号: C08G65/324 C08G65/007

    摘要: Perfluoroether acylperoxides having an average equivalent weight in the range of 350-5000, and of the following formulae: Y′—(CF2—CF(CF3)O)m—(CX′FO)n—CF2CO—O—O—CO—CF2—(OCX′F)n—(OCF(CF3)—CF2)—Y′  (I) wherein Y′=Cl, ORf wherein Rf is a C1-C3 perfluoroalkyl; m, n are integers such that the average equivalent weight of (I) is in the range of 350-5000 and m/n≧40; X′=F, CF3; T—CF2—O—[(CF2CF2O)p—(CF2O)q—CF2—CO—O—O—CO—CF2(OCF2)q—(OCF2CF2)p]y—OCF2—COOH  (II) wherein y is an integer comprised between 1 and 5; p and q are integers such as to give the above mentioned EW and p/q=0.5 to 2.0; T=COOH, F with the proviso that when T=COOH y=1-5, when T=F then y=1, and processes for manufacturing them.

    摘要翻译: 全氟醚酰基过氧化物,其平均当量为350-5000,下式为:其中Y'= Cl,ORf其中Rf为C1-C3全氟烷基; m,n为整数,使得(I )在350-5000和m / n> = 40的范围内; X'= F,CF 3;其中,是1至5之间的整数; p和q是整数,以便得到上述EW和p / q = 0.5至2.0; T = COOH,F,条件是当T = COOHy = 1-5时,当T = F时y = 1,以及制造它们的方法。