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71 条记录 (耗时 0.032 秒)

    Polymerization in the presence of a stable free radical and of an iniferter
    42.
    发明授权
    Polymerization in the presence of a stable free radical and of an iniferter 失效
    在稳定的自由基和引发剂的存在下进行聚合

    公开(公告)号：US06255422B1

    公开(公告)日：2001-07-03

    申请号：US08974091

    申请日：1997-11-19

    申请人： Denis Bertin ,  Bernard Boutevin ,  Pascal Nicol

    发明人： Denis Bertin ,  Bernard Boutevin ,  Pascal Nicol

    IPC分类号： C08F248

    CPC分类号： C08F4/00 ,  C08F2/38 ,  C08F212/08 ,  C08F293/005 ,  C08F2438/02 ,  C08F2438/03 ,  C08F220/14

    摘要： The invention relates to a process for the polymerization or copolymerization of at least one monomer which can be polymerized or copolymerized by the radical route in the presence of a stable free radical and of an iniferter. The presence of the stable free radical greatly modifies the behavior of the iniferter during the polymerization or copolymerization, so that undesirable reactions are much reduced. It is possible, rapidly and with a high yield, to polymerize or copolymerize in the presence of an iniferter in order to result in a polymer or copolymer with a reduced polydispersity and with a monomodal molecular mass distribution.

    摘要翻译： 本发明涉及一种在稳定的自由基和引发剂存在下通过自由基途径聚合或共聚的至少一种单体的聚合或共聚的方法。稳定的自由基的存在极大地改变了该行为 在聚合或共聚期间的引发剂，使得不期望的反应大大降低。 在引发剂存在下，可以快速且高产率聚合或共聚，以产生具有降低的多分散性和单峰分子量分布的聚合物或共聚物。

    Optimized process for inert fluorinated silanes
    44.
    发明授权
    Optimized process for inert fluorinated silanes 失效
    惰性氟化硅烷的优化方法

    公开(公告)号：US5453528A

    公开(公告)日：1995-09-26

    申请号：US343322

    申请日：1994-11-21

    申请人： Bernard Boutevin ,  Francine Guida-Pietrasanta ,  Amedee Ratsimiehety ,  Gerardo Caporiccio

    发明人： Bernard Boutevin ,  Francine Guida-Pietrasanta ,  Amedee Ratsimiehety ,  Gerardo Caporiccio

    IPC分类号： C07F7/12 ,  C07F7/08 ,  C07F7/14

    CPC分类号： C07F7/0827 ,  C07F7/0818 ,  C07F7/0829 ,  C07F7/0896 ,  C07F7/14

    摘要： The present invention relates to an improved method for preparing a fluorinated silane having the formulaR.sup.1.sub.4 Si (I)or the formulaR.sup.2.sub.3 Si(R.sup.3 SiR.sup.4.sub.2).sub.z R.sup.3 SiR.sup.2.sub.3(II)said method comprising reacting the corresponding halide-functional or alkoxy-functional silane with lithium aluminum hydride or sodium borohydride to form a hydride-functional silane and then reacting the latter with a vinyl-terminated fluorotelomer or an allyl-terminated fluorotelomer, wherein at least three R.sub.1 of said silane (I), at least two of the R.sup.2 and at least one R.sup.4 of said silane (II) are selected from derivatives of fluorotelomers or fluorocotelomers, z has an average value of 0 to 4 and R.sup.3 is a derivative of an alkylene-terminated telechelic divalent telomer or cotelomer.

    摘要翻译： 本发明涉及制备具有式R 14 Si（I）或式R 23 Si（R 3 SiR 42）z R 3 SiR 23（II）的氟化硅烷的改进方法，所述方法包括使相应的卤化物官能或烷氧基官能的硅烷与氢化铝锂或 硼氢化钠以形成氢化物官能的硅烷，然后使其与乙烯基封端的荧光调聚物或烯丙基封端的荧光调聚物反应，其中所述硅烷（I）的至少三个R1，R2和至少一个R 4 的所述硅烷（II）选自荧光酮或氟代托他物的衍生物，z的平均值为0至4，并且R 3为亚烷基封端的远电子二价调聚物或聚苯乙烯的衍生物。

    COPOLYCONDENSATION POLYMERIZATION OF FLUOROPOLYMERS
    50.
    发明申请
    COPOLYCONDENSATION POLYMERIZATION OF FLUOROPOLYMERS 失效
    氟聚合物共聚聚合

    公开(公告)号：US20100324234A1

    公开(公告)日：2010-12-23

    申请号：US12486378

    申请日：2009-06-17

    申请人： MING-HONG HUNG ,  Bruno Ameduri ,  Bernard Boutevin ,  Aurelien Soules

    发明人： MING-HONG HUNG ,  Bruno Ameduri ,  Bernard Boutevin ,  Aurelien Soules

    IPC分类号： C08F4/10

    CPC分类号： C08G73/08 ,  C08F8/30 ,  C08F214/222 ,  C08F2800/10 ,  C08F2810/40 ,  C08F8/00

    摘要： Fluorinated copolymers are prepared via copolycondensation polymerization in a process comprising reacting A) a telechelic fluoroazido compound of formula N3(Y)p—(CH2)n—R—(CH2)m—(Y)pN3, wherein Y is SO, SO2, C6H4, or CO, p=0 or 1, n and m are independently 1 to 4, and R is selected from the group consisting of i) a C3-C10 fluoroalkylene group, ii) a C3-C10 fluoroalkoxylene group, iii) a substituted aryl group, iv) an oligomer comprising copolymerized units of vinylidene fluoride and perfluoro(methyl vinyl ether), v) an oligomer comprising copolymerized units of vinylidene fluoride and hexafluoropropylene, vi) an oligomer comprising copolymerized units of tetrafluoroethylene and perfluoro(methyl vinyl ether), and vii) an oligomer comprising copolymerized units of tetrafluoroethylene and a hydrocarbon olefin with B) a telechelic diyne or dinitrile compound in the presence of copper halide catalyst.

    摘要翻译： 氟化共聚物是通过共聚缩聚反应制备的，该方法包括使A）一种式N 3（Y）p-（CH 2）n -R-（CH 2）m - （Y）pN 3的遥爪氟代叠氮化物，其中Y是SO，SO 2， C 6 H 4或CO，p = 0或1，n和m独立地为1至4，R选自i）C 3 -C 10氟亚烷基，ii）C 3 -C 10氟代亚烷基，iii） 取代的芳基，iv）包含偏二氟乙烯和全氟（甲基乙烯基醚）的共聚单元的低聚物，v）包含偏二氟乙烯和六氟丙烯的共聚单元的低聚物，vi）包含四氟乙烯和全氟（甲基乙烯基醚）共聚单元的低聚物 ）和vii）包含四氟乙烯和烃烯烃的共聚单元的低聚物，B）在二卤化铜催化剂存在下的遥爪二炔或二腈化合物。