Fluoropolymer for making a fluoroelastomer
    62.
    发明申请
    Fluoropolymer for making a fluoroelastomer 失效
    用于制造含氟弹性体的含氟聚合物

    公开(公告)号:US20060135717A1

    公开(公告)日:2006-06-22

    申请号:US11280880

    申请日:2005-11-16

    IPC分类号: C08F214/18

    CPC分类号: C08F214/186 C08F214/18

    摘要: The present invention relates to a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated olefins and having one or more cure sites comprising (a) a halogen capable of participating in a peroxide cure reaction or (b) a nitrile group, said fluoropolymer further comprising repeating units derived from one or more fluorinated allyl ethers of the formula: CF2═CF—CF(Z)—O—Rf  (I) wherein Z represents F or CF3 and Rf represents a fluorinated alkyl group that may contain one or more catenary oxygen atoms. The fluoropolymer can be cured to a fluoroelastomer. The invention also relates to a curable fluoroelastomer composition comprising the fluoropolymer and a curing agent.

    摘要翻译: 本发明涉及包含衍生自一种或多种气态氟化烯烃并具有一个或多个固化位点的重复单元的含氟聚合物,其包含(a)能够参与过氧化物固化反应的卤素或(b)腈基,所述含氟聚合物进一步 包含衍生自下列通式的一种或多种氟化烯丙基醚的重复单元:<?in-line-formula description =“In-line Formulas”end =“lead”?> CF 2 -CF-CF (Z)-OR(I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中Z表示F或CF 3 < R 3和R 3表示可以含有一个或多个链状氧原子的氟化烷基。 氟聚合物可以固化成含氟弹性体。 本发明还涉及含氟聚合物和固化剂的可固化含氟弹性体组合物。

    Emulsifier free aqueous emulsion polymerization to produce copolymers of a fluorinated olefin and hydrocarbon olefin
    63.
    发明授权
    Emulsifier free aqueous emulsion polymerization to produce copolymers of a fluorinated olefin and hydrocarbon olefin 失效
    无乳化剂水性乳液聚合制备氟化烯烃和烃烯烃的共聚物

    公开(公告)号:US07064170B2

    公开(公告)日:2006-06-20

    申请号:US10690088

    申请日:2003-10-21

    IPC分类号: C08F12/20

    CPC分类号: C08F214/18

    摘要: Provided is a process for making a copolymer of fluorinated olefin and hydrocarbon olefin selected from ethylene, propylene and mixtures thereof, the process comprising a substantially emulsifier free aqueous emulsion polymerization of said fluorinated olefin and said hydrocarbon olefin, optionally in the presence of fluoropolymer particles and/or fluorinated liquid in a form suitable to improve the copolymerization of fluorinated olefin and hydrocarbon olefin.

    摘要翻译: 提供了制备氟化烯烃和选自乙烯,丙烯及其混合物的烃烯烃的共聚物的方法,该方法包括所述氟化烯烃和所述烃烯烃的基本上无乳化剂的水乳液聚合,任选在含氟聚合物颗粒和 /或氟化液体,其形式适合改善氟化烯烃和烃烯烃的共聚。

    Ultraclean fluoroelastomer suitable for use in the manufacturing of electronic components
    64.
    发明授权
    Ultraclean fluoroelastomer suitable for use in the manufacturing of electronic components 有权
    Ultraclean含氟弹性体适用于制造电子元器件

    公开(公告)号:US06943228B2

    公开(公告)日:2005-09-13

    申请号:US10627461

    申请日:2003-07-25

    CPC分类号: C08F214/18 C08F214/184

    摘要: A curable fluoroelastomer composition for preparing a perfluoroelastomer. The composition includes; (1) a perfluoropolymer having one or more cure-sites selected from a halogen capable of participating in peroxide cure reaction and/or nitrile groups; (2) an organic peroxide and/or a compound capable of effecting curing of the perfluoropolymer through said nitrile groups; and (3) optionally a polyunsaturated coagent. The perfluoropolymer in the composition is essentially free of ionic end groups and the total amount of metal cations in the composition is not more than 10 μg/g perfluoropolymer. The perfluoroelastomers may be obtained from curing the composition in a sufficiently low amount of metal cations so as to make the fluoroelastomer suitable for use in the semi-conductor industry.

    摘要翻译: 一种用于制备全氟弹性体的可固化的含氟弹性体组合物。 组合物包括: (1)具有一个或多个选自能够参与过氧化物固化反应的卤素和/或腈基的固化位点的全氟聚合物; (2)有机过氧化物和/或能够通过所述腈基实现全氟聚合物固化的化合物; 和(3)任选的多不饱和助剂。 组合物中的全氟聚合物基本上不含离子端基,组合物中金属阳离子的总量不超过10mug / g全氟聚合物。 全氟弹性体可以通过以足够低量的金属阳离子固化组合物获得,以使得氟弹性体适用于半导体工业。

    Fluoropolymers with improved characteristics
    66.
    发明授权
    Fluoropolymers with improved characteristics 有权
    具有改进特性的含氟聚合物

    公开(公告)号:US06489420B1

    公开(公告)日:2002-12-03

    申请号:US09604178

    申请日:2000-06-27

    IPC分类号: C08F21422

    摘要: A fluoropolymer composition is provided. The polymer comprises interpolymerized units derived from (i) tetrafluoroethylene, (ii) vinylidene fluoride, (iii) at least one ethylenically unsaturated monomer of the formula CF2═CFRf where Rf is a perfluoroalkyl or a perfluoroalkoxy of 1 to 8 carbon atoms, and (iv) a perfluorovinyl ether of the formula CF2═CF—(OCF2CF(Rf))aOR′f where Rf is as described in (iii), R′f is a perfluoroaliphatic, preferably a perfluoroalkyl or a perfluoroalkoxy, of 1 to 8, preferably 1 to 3, carbon atoms, and a has a value of 0 to 3.

    摘要翻译: 提供含氟聚合物组合物。 聚合物包含衍生自(i)四氟乙烯,(ii)偏二氟乙烯,(iii)至少一种式CF 2 = CFR f的烯键式不饱和单体的共聚单元,其中Rf是1至8个碳原子的全氟烷基或全氟烷氧基,和( iv)式CF 2 = CF-(OCF 2 CF(R f))aOR'f的全氟乙烯醚,其中R f如(iii)中所述,R 1f是1至8的全氟脂族基,优选全氟烷基或全氟烷氧基, 优选为1〜3个碳原子,a为0〜3。

    METHODS FOR MELT-PROCESSING THERMOPLASTIC FLUOROPOLYMERS
    70.
    发明申请
    METHODS FOR MELT-PROCESSING THERMOPLASTIC FLUOROPOLYMERS 审中-公开
    用于熔融加工热塑性氟聚合物的方法

    公开(公告)号:US20110040021A1

    公开(公告)日:2011-02-17

    申请号:US12667880

    申请日:2008-07-02

    IPC分类号: C08L27/12

    摘要: A method comprising melt-processing a first composition. The first composition comprises a first fluoropolymer having a relaxation exponent of from 0.93 to 1.0 and a second fluoropolymer having a relaxation exponent of from 0.30 to 0.92. A method comprising melt-processing a first composition, wherein the first composition comprises a first fluoropolymer having an LCBI of from 0 to 0.1 and a second fluoropolymer having an LCBI of at least 0.2. A method comprising melt-processing a first composition, wherein the first composition comprises a core-shell polymer having a first fluoropolymer portion and a second fluoropolymer portion. The extrusion products have a lower width homogeneity index value than observed in state of the art fluo-ropolymers.

    摘要翻译: 一种包括熔融加工第一组合物的方法。 第一组合物包含松弛指数为0.93至1.0的第一含氟聚合物和松弛指数为0.30至0.92的第二含氟聚合物。 一种包括熔融加工第一组合物的方法,其中所述第一组合物包含LCBI为0至0.1的第一含氟聚合物和LCBI为至少0.2的第二含氟聚合物。 一种包括熔融加工第一组合物的方法,其中所述第一组合物包含具有第一含氟聚合物部分和第二含氟聚合物部分的核 - 壳聚合物。 挤出产品具有比现有技术的氟聚合物中观察到的更低的宽度均匀性指数值。