Process for manufacturing a dispersion of a vinylidene fluoride polymer

    公开(公告)号:US09920141B2

    公开(公告)日:2018-03-20

    申请号:US13516017

    申请日:2010-12-15

    IPC分类号: C08F14/22

    CPC分类号: C08F14/22 C08F2/16

    摘要: A process for manufacturing a dispersions of a vinylidene fluoride (VDF) thermoplastic polymer [polymer (F)], said process comprising polymerizing VDF in an aqueous phase comprising: at least one surfactant selected from the group consisting of non-fluorinated surfactants [surfactant (HS)] and fluorinated surfactants having a molecular weight of less than 400 [surfactant (FS)]; and at least one functional (per)fluoropolyether (functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (R′F)] and at least one functional group, said functional PFPE having a number average molecular weight of at least 1000 and a solubility in water of less than 1% by weight at 25° C., wherein said functional PFPE is present in the aqueous phase in an amount of 0.001 to 0.3 g/l.

    Method for polymerizng vinylidene fluoride
    3.
    发明授权
    Method for polymerizng vinylidene fluoride 有权
    聚偏氟乙烯的方法

    公开(公告)号:US09534106B2

    公开(公告)日:2017-01-03

    申请号:US14125940

    申请日:2012-06-15

    IPC分类号: C08K5/42 C08F14/22 C08F214/22

    摘要: A process for manufacturing a dispersion of a vinylidene fluoride (VDF) thermoplastic polymer [polymer (F)], said process comprising polymerizing VDF in an aqueous phase comprising from 0.5 to 1.5 g/l of at least one surfactant of formula F—(CF2CF2)3—CH2CH2—SO3Xa, wherein Xa is H, a alkali metal or a NRH4 group, with RH being H or a C1-C6 hydrocarbon group [surfactant (T)] and an organic oxidizing agent [agent (O)] as polymerization initiator.

    摘要翻译: 一种制备偏二氟乙烯(VDF)热塑性聚合物[聚合物(F)]的分散体的方法,所述方法包括在包含0.5至1.5g / l的至少一种式F-(CF 2 CF 2)的表面活性剂的水相中聚合VDF )3-CH 2 CH 2 -SO 3 Xa,其中Xa为H,碱金属或NRH4基,RH为H或C1-C6烃基[表面活性剂(T)]和有机氧化剂[试剂(O)]为聚合 发起人

    METHOD FOR MANUFACTURING FLUOROELASTOMERS
    4.
    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:US20140058052A1

    公开(公告)日:2014-02-27

    申请号:US14114799

    申请日:2012-05-02

    IPC分类号: C08F214/28

    摘要: 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.

    摘要翻译: 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,所述方法包括: - 至少一种有机氧化剂 )]; - 至少一种有机还原剂[试剂(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的极性端基,特别可从所述方法获得,以及可固化组合物。

    Compositions for Compounding, Extrusion and Melt Processing of Foamable and Cellular Fluoropolymers
    6.
    发明申请
    Compositions for Compounding, Extrusion and Melt Processing of Foamable and Cellular Fluoropolymers 有权
    用于可发泡和蜂窝状含氟聚合物的复合,挤出和熔融加工的组合物

    公开(公告)号:US20110224318A1

    公开(公告)日:2011-09-15

    申请号:US13109532

    申请日:2011-05-17

    IPC分类号: C08J9/00 C08F114/26

    摘要: The present invention relates generally to the use of talc as a chemical foaming agent in perfluoropolymers to form foamable and foamed compositions. For example, in one aspect, a foamable composition is disclosed, which comprises (i) one or more base perfluoropolymers comprising at least 50 percent by weight of the composition, and (ii) talc blended with the one or more base perfluoropolymers, where the talc comprises 3 percent to about 15 percent by weight of the composition. Each of the perfluoropolymers is selected from the group consisting of tetrafluoroethylene/perfluoromethylvinyl ether copolymer (MFA), hexafluoropropylene/tetrafluoroethylene copolymer (FEP) and perfluoroalkoxy (PFA) and any blend thereof, where hydrogen-containing fluoropolymers are absent from the composition. The one or more base perfluoropolymers are melt-processable at one or more elevated processing temperatures of at least about 600° F. at which the talc functions as a chemical foaming agent for extrusion or mold processing of the composition into a foamed article having uniform cell structures.

    摘要翻译: 本发明一般涉及在全氟聚合物中使用滑石作为化学发泡剂来形成可发泡和发泡的组合物。 例如,一方面,公开了一种可发泡组合物,其包含(i)一种或多种包含至少50重量%组合物的碱性全氟聚合物,和(ii)与一种或多种碱性全氟聚合物共混的滑石,其中 滑石占组合物重量的3%至约15%。 每个全氟聚合物选自四氟乙烯/全氟甲基乙烯基醚共聚物(MFA),六氟丙烯/四氟乙烯共聚物(FEP)和全氟烷氧基(PFA)及其任何共混物,其中组合物中不存在含氢的含氟聚合物。 一种或多种碱性全氟聚合物在至少约600°F的一个或多个升高的​​加工温度下是可熔融加工的,其中滑石用作化学发泡剂,用于将组合物挤出或模塑加工成具有均匀电池的发泡制品 结构。

    Process for Manufacturing a Dispersion of a Vinylidene Fluoride Polymer
    8.
    发明申请
    Process for Manufacturing a Dispersion of a Vinylidene Fluoride Polymer 有权
    制造偏二氟乙烯聚合物分散体的方法

    公开(公告)号:US20120283382A1

    公开(公告)日:2012-11-08

    申请号:US13516017

    申请日:2010-12-15

    IPC分类号: C08L27/16

    CPC分类号: C08F14/22 C08F2/16

    摘要: A process for manufacturing a dispersions of a vinylidene fluoride (VDF) thermoplastic polymer [polymer (F)], said process comprising polymerizing VDF in an aqueous phase comprising: at least one surfactant selected from the group consisting of non-fluorinated surfactants [surfactant (HS)] and fluorinated surfactants having a molecular weight of less than 400 [surfactant (FS)]; and at least one functional (per)fluoropolyether (functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (R′F)] and at least one functional group, said functional PFPE having a number average molecular weight of at least 1000 and a solubility in water of less than 1% by weight at 25° C., wherein said functional PFPE is present in the aqueous phase in an amount of 0.001 to 0.3 g/l.

    摘要翻译: 一种制备偏二氟乙烯(VDF)热塑性聚合物[聚合物(F)]的分散体的方法,所述方法包括在水相中聚合VDF,所述方法包括:至少一种选自非氟化表面活性剂(表面活性剂 HS)]和分子量小于400 [表面活性剂(FS)]的氟化表面活性剂; 和至少一种包含至少一个(全)氟聚氧亚烷基链[链(R'F)]和至少一个官能团的官能(全)氟聚醚(功能性PFPE),所述功能性PFPE的数均分子量为至少1000 和在25℃下在水中的溶解度小于1重量%,其中所述功能性PFPE以0.001至0.3g / l的量存在于水相中。

    Compositions for compounding, extrusion and melt processing of foamable and cellular fluoropolymers

    公开(公告)号:US20090048359A1

    公开(公告)日:2009-02-19

    申请号:US12221280

    申请日:2008-08-01

    IPC分类号: C08J9/06

    摘要: The disclosure provides a composition or set of compositions and methods for producing cellular foamable, foamed, or blown perfluoropolymers or fluoropolymers and other thermoplastics to create products including a lower cost communications cable, conductor separator, conductor support-separator, jacketing, tape, wire insulation and in some cases a conduit tube as individual components or combined configurations that exhibit improved electrical, flammability and optical properties. The composition of the invention can be is chemically foamable yielding homogeneous foamed insulating structures which excel simultaneously in providing excellent insulating properties on metal wires or optical fibers, outstanding processing parameters for high speed cable manufacture and high performance ratings on flammability, smoke generation and fuel load. Specifically, the foamable perfluoropolymer cellular insulation composition comprises blending or individually utilizing; a selected perfluoropolymer in combination with magnesium carbonate, calcium carbonate and Aclyn® wax; a second composition comprising the first composition and an additional selected one or more perfluoropolymers; a third composition comprising; talc and the selected one or more perfluoropolymers; a fourth composition comprising; the second composition, the third composition and the selected one or more perfluoropolymers. A single compounded pellet or product resulting in cellular foams obtained from melt processing the pellets has also been realized by providing the melt combination of only talc and a perfluoropolymer. The present invention includes a foamable perfluoropolymer composition comprising at least one melt-processible per(halo)fluoropolymer; and a blowing agent comprising an effective amount of magnesium carbonate; and an active nucleating agent chosen among: at least one metal carbonate different from magnesium carbonate having decomposition temperature exceeding 350° C., generally chosen among CaCO3, BaCO3, ZnCO3 and PbCO3; and talc and mixtures thereof.

    HYDRO-FLUOROCOMPOUNDS
    10.
    发明申请
    HYDRO-FLUOROCOMPOUNDS 审中-公开
    氢氟化合物

    公开(公告)号:US20140350181A1

    公开(公告)日:2014-11-27

    申请号:US14118312

    申请日:2012-05-24

    摘要: The invention pertains to certain hydro-fluorocompounds of the following formula (I): RfO—RH—O—(CH2)m-[CF(X)n]—COOXa wherein: —Xa is H, a monovalent metal (preferably an alkaline metal) or an ammonium group of formula —N(R′n)4, wherein each of R′n, equal to or different from each other, independently represents a hydrogen atom or a C1-6 hydrocarbon group (preferably an alkyl group); —Rf is a C1-C6 (per)fluoroalkyl optionally comprising one or more catenary oxygen atoms, preferably Rf is a group of formula Rf—CH2—, wherein R′f is a C1-C5 perfluorinated group, possibly comprising one or more ethereal oxygens, preferably a C1-C3 perfluorinated group, possibly comprising one or more ethereal oxygens; —RH is a fluorine-free hydrocarbon group optionally comprising one or more catenary oxygen atoms; —X is F or CF3, preferably X is F; -m is 0 or 1; -n is 1 to 3, to a process for the manufacture of said hydro-fluorocompounds, to a method of making fluoropolymers in the presence of said hydro-fluorocompounds, and to fluoropolymer dispersions comprising said hydro-fluorocompound.

    摘要翻译: 本发明涉及以下式(I)的某些含氟化合物:RfO-RH-O-(CH2)m- [CF(X)n] -COOXa其中:-Xa为H,一价金属(优选碱 金属)或式-N(R'n)4的铵基,其中R'n彼此相同或不同,各自独立地表示氢原子或C1-6烃基(优选烷基) ; -R f是任选地包含一个或多个链状氧原子的C 1 -C 6(全)氟代烷基,优选Rf是式Rf-CH 2 - 的基团,其中R 1f是C 1 -C 5全氟化基团,可能包含一个或多个醚 氧,优选C1-C3全氟化基团,可能包含一个或多个醚类氧; -RH是任选地包含一个或多个链状氧原子的无氟烃基; -X是F或CF 3,优选X是F; -m为0或1; -n为1至3,涉及一种制备所述含氟化合物的方法,涉及一种在所述含氟化合物存在下制备含氟聚合物的方法,以及含有所述氢氟化合物的含氟聚合物分散体。