METHOD OF MAKING FLUOROPOLYMER DISPERSION
    4.
    发明申请
    METHOD OF MAKING FLUOROPOLYMER DISPERSION 审中-公开
    制备氟聚合物分散体的方法

    公开(公告)号:WO2016050776A1

    公开(公告)日:2016-04-07

    申请号:PCT/EP2015/072441

    申请日:2015-09-29

    CPC classification number: C08L27/18 C08F14/26 C08K5/095 C08L71/02 C09D127/18

    Abstract: The invention pertains to a method for making a fluoropolymer dispersion, said method comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in an aqueous medium comprising a surfactant mixture [mixture (S)] comprising: at least one perfluorohexanoic acid or salt thereof [surfactant (C6)], in an amount of 1 to 5 g/I, with respect to said aqueous medium; and at least one linear bifunctional perfluoropolyether surfactant [surfactant (PFPE)] complying with formula (I) here below: XpOOC-CF 2 -0-(CF 2 0) n' (CF 2 CF 2 0) m' -CF 2 -COOXp (I) wherein: Xp, equal to or different from each other, is a hydrogen atom, a monovalent metal, preferably an alkaline metal, or an ammonium group of formula -N(R' n ) 4 , wherein R' n , equal or different at each occurrence, is a hydrogen atom or a C 1 -C 6 hydrocarbon group, preferably an alkyl group; n' and m' are independently integers > 0 such that the number average molecular weight of the surfactant (PFPE) is of 500 to 2500, said surfactant (PFPE) being used in an amount of 0.005 to 0.5 g/I, with respect to said aqueous medium.

    Abstract translation: 本发明涉及一种制备含氟聚合物分散体的方法,所述方法包括一种或多种氟化单体的水乳液聚合,其中所述水性乳液聚合在包含表面活性剂混合物(混合物(S))的水性介质中进行,所述表面活性剂混合物 至少一种全氟己酸或其盐[表面活性剂(C6)],相对于所述水性介质为1至5g / l; 和XpOOC-CF 2-0-(CF 20)n'(CF 2CF 20)m'-CF 2 -COOPp(I)的至少一种线性双功能全氟聚醚表面活性剂[表面活性剂(PFPE)] )其中:Xp彼此相同或不同,是氢原子,一价金属,优选碱金属或式-N(R'n)4的铵基,其中R'n相同或不同 是氢原子或C 1 -C 6烃基,优选烷基; n'和m'独立地为整数> 0,使得表面活性剂(PFPE)的数均分子量为500至2500,所述表面活性剂(PFPE)的用量为0.005至0.5g / l,相对于 所述水性介质。

    MELT-PROCESSABLE PERFLUOROPOLYMERS HAVING IMPROVED THERMAL AND MECHANICAL PROPERTIES AFTER HEATING TREATMENT
    5.
    发明申请
    MELT-PROCESSABLE PERFLUOROPOLYMERS HAVING IMPROVED THERMAL AND MECHANICAL PROPERTIES AFTER HEATING TREATMENT 审中-公开
    加热处理后的具有改进的热和机械性能的熔融加工的全氟聚合物

    公开(公告)号:WO2015185520A1

    公开(公告)日:2015-12-10

    申请号:PCT/EP2015/062192

    申请日:2015-06-02

    Abstract: The invention mainly pertains to a method for heat treating a composition [composition (C)] which contains at least one melt-processible perfluoropolymer [polymer (F)] formed of tetrafluoroethylene (TFE) copolymer with one or more perfluorinated comonomers [comonomer (F)] containing at least one unsaturation of ethylene type in amounts from 0.5% to 13% by weight, preferably from 0.6% to 11 % by weight, and more preferably from 0.8% to 9% by weight; said polymer (F) possessing reactive end groups comprising at least one of the group consisting of hydrogen atoms, oxygen atoms and ethylenically unsaturated double bonds in an amount of at least 4.5 mmol/kg, the process comprising at least the step of heat-treating the composition (C) at a temperature of at least 260°C.

    Abstract translation: 本发明主要涉及一种热处理组合物[组合物(C)]的方法,该组合物含有至少一种由四氟乙烯(TFE)共聚物形成的可熔融加工的全氟聚合物[聚合物(F))与一种或多种全氟化共聚单体[共聚单体(F )],其含有至少一种乙烯类型的不饱和度为0.5重量%至13重量%,优选0.6重量%至11重量%,更优选0.8重量%至9重量% 所述聚合物(F)具有包含至少4.5mmol / kg的量的包含氢原子,氧原子和烯属不饱和双键中的至少一个的反应性端基,该方法至少包括热处理步骤 组合物(C)在至少260℃的温度下进行。

    TETRAFLUOROETHYLENE COPOLYMERS
    9.
    发明申请
    TETRAFLUOROETHYLENE COPOLYMERS 审中-公开
    四氢氟乙烯共聚物

    公开(公告)号:WO2013189826A1

    公开(公告)日:2013-12-27

    申请号:PCT/EP2013/062257

    申请日:2013-06-13

    CPC classification number: C08K5/1565 C08F14/26 C08F214/26 C08F2/24

    Abstract: The invention pertains to a tetrafluoroethylene (TFE) copolymer comprising recurring units derived from at least one per(halo)fluoroolefin different from TFE [monomer (F)] [monomer (F)], in an amount of 0.005 to 0.250 % moles, with respect to the total moles of the copolymer, wherein a particular relation between monomer content and amorphous index is satisfied, and to a process for its manufacture by emulsion polymerization in the presence of certain cyclic surfactants.

    Abstract translation: 本发明涉及包含衍生自至少一种不同于TFE [单体(F)] [单体(F)]的(卤代)氟烯烃的重复单元的四氟乙烯(TFE)共聚物,其量为0.005-0.250摩尔%,与 相对于共聚物的总摩尔数,其中满足单体含量和无定形指数之间的特定关系,以及在某些环状表面活性剂存在下通过乳液聚合制造的方法。

    METHOD FOR MANUFACTURING FLUOROELASTOMERS
    10.
    发明申请
    METHOD FOR MANUFACTURING FLUOROELASTOMERS 审中-公开
    制造荧光体的方法

    公开(公告)号:WO2012150256A1

    公开(公告)日:2012-11-08

    申请号:PCT/EP2012/058018

    申请日:2012-05-02

    CPC classification number: C08F214/28 C08F214/22 C08F214/222 C08F214/225

    Abstract: The invention pertains to a process for manufacturing a fluoroelastomer [fluoroelastomer (A)] having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, said method comprising emulsion polymerizing vinylidene fluoride (VDF) in the presence of at least one additional fluorinated monomer, in an aqueous polymerization medium, said method comprising polymerizing VDF and said additional fluorinated monomer(s) in the presence of a redox radical initiator system comprising: - at least one organic oxidizing agent [agent (O)]; - at least one organic reducing agent [agent (R)]; wherein agent (O) is fed to said polymerization medium separately from agent (R), so that agent (O) comes in contact with agent (R) exclusively in said polymerization medium comprising VDF and optional additional monomer(s), to fluoroelastomers having low amount of chain defects and low amount of polar end groups, notably obtainable from said process, and to curable compositions therefrom.

    Abstract translation: 本发明涉及通过ASTM D-3418-08测定的具有小于5J / g的熔化热的含氟弹性体(含氟弹性体(A)]的制造方法,所述方法包括:将聚偏二氟乙烯 在水性聚合介质中存在至少一种另外的氟化单体,所述方法包括在氧化还原自由基引发剂体系存在下聚合VDF和所述另外的氟化单体,其包含: - 至少一种有机氧化剂 )]; - 至少一种有机还原剂[agent(R)]; 其中将试剂(O)与试剂(R)分开地加入到所述聚合介质中,使得试剂(O)仅在包含VDF和任选的另外的单体的所述聚合介质中与试剂(R)接触,具有含氟弹性体 少量的链缺陷和少量极性端基,特别可从所述方法获得,以及可固化组合物。

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