Fluorine-containing graft or block polymer
    21.
    发明申请
    Fluorine-containing graft or block polymer 有权
    含氟接枝或嵌段聚合物

    公开(公告)号:US20060173131A1

    公开(公告)日:2006-08-03

    申请号:US10550389

    申请日:2004-06-10

    IPC分类号: C08F8/00

    摘要: The present invention provides a graft or a block polymer in which a fluorine rubber and a silicone rubber are chemically bonded. The present invention is a graft or a block polymer comprising at least one kind of a silicone rubber segment and at least one kind of a fluorine elastomer segment. Furthermore, it is preferable that a fluoirne containing elastomer segment is an elastomer segment comprising vinylidene fluoride or an elastomer segment comprising tetrafluoroethylene and that a silicone rubber segment has a unit of dimethylsiloxane and/or methyl-3,3,3-trifluoropropylsiloxane.

    摘要翻译: 本发明提供一种其中氟橡胶和硅橡胶化学键合的接枝或嵌段聚合物。 本发明是包含至少一种硅橡胶链段和至少一种氟弹性体链段的接枝或嵌段聚合物。 此外,优选含氟弹性体链段是包含偏二氟乙烯的弹性体部分或包含四氟乙烯的弹性体部分,硅橡胶部分具有二甲基硅氧烷和/或甲基-3,3,3-三氟丙基硅氧烷的单元。

    FLUORINE-CONTAINING ELASTOMER MIXTURE, METHOD FOR PRODUCING SAME, COMPOSITION FOR VULCANIZING PEROXIDE, AND MOLDED ARTICLE
    23.
    发明申请
    FLUORINE-CONTAINING ELASTOMER MIXTURE, METHOD FOR PRODUCING SAME, COMPOSITION FOR VULCANIZING PEROXIDE, AND MOLDED ARTICLE 有权
    含氟的弹性体混合物,其生产方法,过氧化物的组合物和成型品

    公开(公告)号:US20120029152A1

    公开(公告)日:2012-02-02

    申请号:US13260913

    申请日:2010-03-30

    IPC分类号: C08L27/20

    摘要: A fluoroelastomer mixture, including: a peroxide-vulcanizable fluoroelastomer (A) containing an iodine atom; and a peroxide-vulcanizable fluoroelastomer (B) containing an iodine atom. The fluoroelastomer (A) is a copolymer (a1) consisting of 50 to 85 mol % of a vinylidene fluoride unit and 15 to 50 mol % of a perfluoro(alkyl vinyl ether) unit, or a copolymer (a2) consisting of 45 to 85 mol % of a vinylidene fluoride unit, 1 to 30 mol % of a tetrafluoroethylene unit, and 14 to 30 mol % of a perfluoro(alkyl vinyl ether) unit. Further the fluoroelastomer (B) has a fluorine content of 70.0% or more. Also disclosed is a composition for peroxide vulcanization containing the above fluoroelastomer composition (i), a polyfunctional unsaturated compound (ii) and a peroxide (iii), as well as a method for producing the fluoroelastomer mixture.

    摘要翻译: 一种含氟弹性体混合物,包括:含有碘原子的过氧化物可硫化的含氟弹性体(A) 和含有碘原子的过氧化物可硫化的含氟弹性体(B)。 氟弹性体(A)是由50〜85摩尔%的偏氟乙烯单元和15〜50摩尔%的全氟(烷基乙烯基醚)单元构成的共聚物(a1),或由45〜85组成的共聚物(a2) 偏二氟乙烯单元的摩尔%,四氟乙烯单元为1〜30摩尔%,全氟(烷基乙烯基醚)单元为14〜30摩尔%。 此外,含氟弹性体(B)的氟含量为70.0%以上。 还公开了含有上述含氟弹性体组合物(i),多官能不饱和化合物(ⅱ)和过氧化物(ⅲ)的过氧化物硫化的组合物,以及含氟弹性体混合物的制造方法。

    CURABLE COMPOSITION AND MOLDED ARTICLE MADE OF SAME
    24.
    发明申请
    CURABLE COMPOSITION AND MOLDED ARTICLE MADE OF SAME 审中-公开
    可固化组合物和成型品

    公开(公告)号:US20110112265A1

    公开(公告)日:2011-05-12

    申请号:US13002016

    申请日:2009-06-29

    IPC分类号: C08F4/00 C08F2/38

    CPC分类号: C09K3/1009 C08K5/16 C08L27/16

    摘要: A curable composition comprising (A) a vinylidene fluoride type elastomer which is a copolymer of vinylidene fluoride (a1), at least one perfluoroolefin (a2) selected from the group consisting of tetrafluoroethylene, hexafluoropropylene and perfluoro(alkyl vinyl ether) and a cyano group-containing monomer (a3) (the proportion of vinylidene fluoride exceeds 20% by mole), and (B) a compound generating ammonia at 40° to 330° C. alone as a curing agent. The present invention can provide a curable composition of a vinylidene fluoride type elastomer assuring improved crosslinking speed and making it possible to use a cheap curing agent, and a molded article obtained from the curable composition. Physical properties under normal conditions can also be improved by the presence of the solvent having affinity for the compound generating ammonia.

    摘要翻译: 一种可固化组合物,其包含(A)偏二氟乙烯类弹性体,其是偏二氟乙烯(a1),至少一种选自四氟乙烯,六氟丙烯和全氟(烷基乙烯基醚)的全氟烯烃(a2)的共聚物和氰基 (a3)(偏二氟乙烯的比例超过20摩尔%),(B)仅在40〜330℃产生氨的化合物作为固化剂。 本发明可以提供一种偏二氟乙烯类弹性体的固化性组合物,其确保交联速度提高,并且可以使用廉价的固化剂,以及由可固化组合物获得的成型体。 在正常条件下的物理性能也可以通过对产生氨的化合物具有亲和性的溶剂的存在来改善。

    Process for preparing fluorine-containing polymer
    28.
    发明授权
    Process for preparing fluorine-containing polymer 有权
    含氟聚合物的制备方法

    公开(公告)号:US06509429B1

    公开(公告)日:2003-01-21

    申请号:US09743188

    申请日:2001-01-05

    IPC分类号: C08F1418

    摘要: A process for preparing a fluorine-containing polymer through emulsion polymerization method which enhances productivity while maintaining excellent physical properties of the fluorine-containing polymer and comprises (a) a first polymerization step for emulsion-polymerizing a fluorine-containing monomer or a mixture of a fluorine-containing monomer and a non-fluorine-containing monomer in an aqueous medium in the presence of a radical polymerization initiator and an emulsifying agent, (b) a dilution step for diluting the obtained aqueous emulsion of polymer particles with water to reduce the number of emulsified polymer particles per unit amount of aqueous medium in the emulsion and a concentration of emulsifying agent, and (c) a second polymerization step for emulsion-polymerizing a fluorine-containing monomer and/or a non-fluorine-containing monomer in the obtained diluted emulsified solution.

    摘要翻译: 一种通过乳液聚合方法制备含氟聚合物的方法,其提高生产率同时保持含氟聚合物的优异物理性能,并且包括(a)第一聚合步骤,用于将含氟单体或 在自由基聚合引发剂和乳化剂的存在下,在水性介质中含氟单体和非含氟单体,(b)稀释步骤,用水稀释所得聚合物颗粒的水乳液以减少数量 乳液中的乳化聚合物粒子和乳化剂的浓度的乳化聚合物粒子,和(c)在所得到的乳液聚合物粒子中使含氟单体和/或非含氟单体乳化聚合的第二聚合步骤 稀释乳化液。

    Method for producing a fluoroelastomer
    30.
    发明授权
    Method for producing a fluoroelastomer 有权
    氟弹性体的制造方法

    公开(公告)号:US09273172B2

    公开(公告)日:2016-03-01

    申请号:US12168454

    申请日:2008-07-07

    IPC分类号: C08F214/22 C08F2/26 C08F2/44

    CPC分类号: C08F214/22 C08F2/26

    摘要: The present invention provides a method for producing a fluoroelastomer using an emulsifier which is inexpensive and hardly remains in product polymers. The present invention is related to a method for producing a fluoroelastomer, wherein vinylidene fluoride and at least one fluoroolefin monomer other than vinylidene fluoride are copolymerized in the manner of an emulsion polymerization in the presence of an emulsifier represented by C5F11COOM, wherein M represents H, NH4 or an alkali metal.

    摘要翻译: 本发明提供使用廉价且几乎不残留在产品聚合物中的乳化剂制备含氟弹性体的方法。 本发明涉及一种含氟弹性体的制造方法,其中在由C5F11COOM表示的乳化剂的存在下,以偏二氟乙烯为单位,将聚偏二氟乙烯和至少一种氟烯烃单体以乳液聚合的方式共聚,其中M表示H, NH4或碱金属。