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    Fluoroelastomeric and fluoroplastomeric copolymers having a high resistance to bases
    1.
    发明授权
    Fluoroelastomeric and fluoroplastomeric copolymers having a high resistance to bases 失效
    具有高抗碱碱性的氟弹性体和氟塑料共聚物

    公开(公告)号：US5354824A

    公开(公告)日：1994-10-11

    申请号：US64276

    申请日：1993-05-20

    申请人： Vincenzo Arcella ,  Giulio Brinati ,  Margherita Albano ,  Anna Minutillo ,  Graziella Chiodini

    发明人： Vincenzo Arcella ,  Giulio Brinati ,  Margherita Albano ,  Anna Minutillo ,  Graziella Chiodini

    IPC分类号： C08F14/22 ,  C08F214/22 ,  C09K3/10 ,  C08F16/24

    CPC分类号： C08F214/225

    摘要： The invention relates to new fluoroelastomeric copolymers endowed with resistance to bases and suitable in particular for preparing O-rings, comprising:______________________________________ (I) VDF 47-80 mols % HFP and/or PAVE 16-30 mols % hydrogenated olefin containing 2-25 mols % 2-4 C or (II) VDF 42-80 mols % PAVE 16-30 mols % hydrogenated olefin containing 2-30 mols % 2-4 C ______________________________________ The invention relates to new fluoroplastomeric copolymers endowed with resistance to bases, comprising:______________________________________ (III) VDF 70-99 mols % HFP and/or PAVE 0-16 mols % hydrogenated olefin containing 1-30 mols % 2-4 C ______________________________________ A further object of the invention is a process for preparing the abovesaid fluoroelastomeric and fluoroplastomeric copolymers.

    摘要翻译： 本发明涉及具有抗碱性的新型含氟弹性体共聚物，特别适用于制备O型环，其包含：（I）VDF 47-80摩尔％-HFP和/或PAVE 16-30摩尔％氢化烯烃，其含有2 -25摩尔％-24℃ - 或 - （II）VDF 42-80摩尔％ - PAVE 16-30摩尔％ - 含有2-30摩尔％-24℃的氢化烯烃本发明涉及新的氟代共聚物共聚物 具有对碱的耐性，其包含： - （III）VDF 70-99摩尔％-HFP和/或PAVE 0-16摩尔％ - 含有1-30摩尔％-24℃的氢化烯烃 - 本发明的另一个目的 是制备上述含氟弹性体和氟塑料共聚物的方法。

    Fluoroelastomers endowed with high resistance to polar solvents and to bases
    2.
    发明授权
    Fluoroelastomers endowed with high resistance to polar solvents and to bases 失效
    氟弹性体赋予极性溶剂和碱的高抗性

    公开(公告)号：US5639838A

    公开(公告)日：1997-06-17

    申请号：US538180

    申请日：1995-08-23

    申请人： Margherita Albano ,  Vincenzo Arcella ,  Graziella Chiodini ,  Anna Minutillo

    发明人： Margherita Albano ,  Vincenzo Arcella ,  Graziella Chiodini ,  Anna Minutillo

    IPC分类号： C08F16/14 ,  C08F214/26 ,  C08F216/14 ,  C09K3/10 ,  C08F16/24

    CPC分类号： C08F214/262

    摘要： Fluoroelastomers comprising, by mole:(a) from 33 to 75% of tetrafluoroethylene (TFE);(b) from 15 to 45% of a perfluorovinylether (PVE);(c) from 10 to 22% of vinylidene fluoride (VDF).They are endowed with high resistance to polar solvents and to bases, excellent compression set also at high temperatures, low Tg and good processability.They result particularly suitable for the manufacture of sealing elements (O-rings) for plants intended to the production of methylterbutylether (MTBE).

    摘要翻译： 含有摩尔的氟弹性体：（a）33-75％的四氟乙烯（TFE）; （b）15至45％的全氟乙烯基醚（PVE）; （c）10至22％的偏二氟乙烯（VDF）。 它们具有对极性溶剂和碱的高耐性，在高温下也具有优异的压缩永久变形，低Tg和良好的加工性。 它们特别适用于制造用于生产甲基丁基醚（MTBE）的植物的密封元件（O型圈）。

    Fluoroelastomers based on vinylidene fluoride exhibiting superior resistance to organic bases
    5.
    发明授权
    Fluoroelastomers based on vinylidene fluoride exhibiting superior resistance to organic bases 失效
    基于偏氟乙烯的氟弹性体显示出优异的耐有机碱性

    公开(公告)号：US5264509A

    公开(公告)日：1993-11-23

    申请号：US15063

    申请日：1993-02-08

    申请人： Vincenzo Arcella ,  Margherita Albano ,  Giulio Brinati ,  Graziell Chiodini ,  Anna Minutillo

    发明人： Vincenzo Arcella ,  Margherita Albano ,  Giulio Brinati ,  Graziell Chiodini ,  Anna Minutillo

    IPC分类号： C08F214/22 ,  C08F214/26 ,  C08F16/24

    CPC分类号： C08F214/265 ,  C08F214/225

    摘要： Fluoroelastomeric copolymers exhibiting high resistance to bases and alcohols, as well as high mechanical properties and low-temperature resistance, comprising, in moles:4-75% of units of vinylidene fluoride;12-40% of units of hexafluoropropene and/or perfluorovinylether and/or hydropentafluoropropene and/or chlorotrifluoroethylene;2-35% of units of an olefin containing up to 4 carbon atoms;2-60% of units of tetrafluoroethylene, provided that, when the sum of the olefin units and the perfluorovinylether units is equal to or greater than 70%, such copolymers possess a molecular weight sufficiently high to exhibit good mechanical characteristics.

    摘要翻译： 显示出对碱和醇的高抗性以及高机械性能和耐低温性的氟弹性共聚物，摩尔数：4-75％的偏二氟乙烯单元; 12-40％的六氟丙烯和/或全氟乙烯基醚和/或氢五氟丙烯和/或氯三氟乙烯的单元; 2-35％含有至多4个碳原子的烯烃单元; 2-60％的四氟乙烯单元，条件是当烯烃单元和全氟乙烯基醚单元的总和等于或大于70％时，这种共聚物的分子量足够高以表现出良好的机械特性。

    Compositions of ionically curable fluoroelastomeric polymers
    6.
    发明授权
    Compositions of ionically curable fluoroelastomeric polymers 失效
    离子可固化的含氟弹性体聚合物的组合物

    公开(公告)号：US5409998A

    公开(公告)日：1995-04-25

    申请号：US133625

    申请日：1993-10-08

    申请人： Graziella Chiodini ,  Anna Minutillo

    发明人： Graziella Chiodini ,  Anna Minutillo

    IPC分类号： C08K5/17 ,  C08K5/3462 ,  C08L27/12 ,  C08L27/16 ,  C08F8/00

    CPC分类号： C08K5/3462

    摘要： Ionically curing of VDF-containing fluoroelastomers selected from the ones containing less than 60 moles % of VDF and from the ones containing hydrogenated olefins is improved by using, as accelerators, triazinic compounds of formula: ##STR1## (R=H, C.sub.1 -C.sub.4 alkyl; R'=R or benzyl, arylalkyl; X=Cl, Br, I, a bisphenoxy radical or O--CH.sub.2 RF--CH.sub.2 R.sub.2 ; Rf=a perfluorooxyalkylene chain; R.sub.2 =--OH, --O.sup.-). What is claimed are the fluoroelastomeric compositions containing said accelerators.

    摘要翻译： 通过使用下式的三嗪化合物，使用选自含有小于60摩尔％的VDF和含氢化烯烃的含VDF的含氟弹性体的离子固化。 X = Cl，Br，I，双苯氧基或O-CH 2 RF-CH 2 R 2; Rf =全氟氧化烯链; R2 = -OH，-O-）。 所要求保护的是含有所述促进剂的含氟弹性体组合物。