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    • 4. 发明授权
    • Fluorine-containing elastomeric copolymers, process for preparing the
same and composition containing the same
    • 含氟弹性体共聚物,其制备方法和含有该共聚物的组合物
    • US4141874A
    • 1979-02-27
    • US740772
    • 1976-11-10
    • Masahiko OkaSingo TanigawaTakesi SuzukiMasayasu TomodaYutaka Ueta
    • Masahiko OkaSingo TanigawaTakesi SuzukiMasayasu TomodaYutaka Ueta
    • C08F2/16C08F259/08C08L27/16
    • C08F259/08
    • Elastomeric copolymer of vinylidene fluoride and at least one other fluorine-containing monomer containing 28 to 92% by mole of the vinylidene fluoride unit and having an intrinsic viscosity of 0.4 to 1.3 at 35.degree. C. in methyl ethyl ketone, which is prepared by a two-stage polymerization process of vinylidene fluoride monomer and at least one other fluorine-containing monomer wherein monomers are copolymerized in an aqueous medium in the presence of a water-soluble radical polymerization initiator at a first stage to give a first stage-copolymer having an intrinsic viscosity of 0.01 to 3.0 at 35.degree. C. in methyl ethyl ketone and then copolymerized in an aqueous medium in the presence of the first stage-copolymer and an oil-soluble radical polymerization initiator at a second stage to give a second stage-copolymer, said elastomeric copolymer comprising 1 to 80% by weight of the first stage-copolymer and 20 to 99% by weight of the second stage-copolymer, process for preparing the same and composition containing the same. The elastomeric copolymer can be cured at satisfactory cure rate to give cured rubber having low compression set and high elongation.
    • 偏二氟乙烯与至少一种含有28-92%(摩尔)偏二氟乙烯单元的其它含氟单体的弹性共聚物,在35℃下在甲基乙基酮中的特性粘度为0.4〜1.3,其由 偏二氟乙烯单体和至少一种其它含氟单体的两阶段聚合方法,其中单体在第一阶段在水溶性自由基聚合引发剂存在下在水性介质中共聚,得到第一阶段共聚物,其具有 在35℃下在甲基乙基酮中的特性粘度为0.01〜3.0,然后在第一阶段共聚物和油溶性自由基聚合引发剂的存在下,在含水介质中共聚,得到第二级共聚物 ,所述弹性体共聚物包含1至80重量%的第一阶段共聚物和20至99重量%的第二阶段共聚物,其制备方法 nd组合物。 弹性体共聚物可以以令人满意的固化速率固化,得到具有低压缩永久变形和高伸长率的固化橡胶。
    • 5. 发明授权
    • Cross linkable fluorine-containing polymer
    • 可交联的含氟聚合物
    • US4501869A
    • 1985-02-26
    • US517334
    • 1983-07-26
    • Masayoshi TatemotoMasahiko OkaHideo KanoMasayasu TomodaYutaka Ueta
    • Masayoshi TatemotoMasahiko OkaHideo KanoMasayasu TomodaYutaka Ueta
    • C08L27/12C08F2/38C08F4/00C08F4/28C08F14/00C08F14/18C08K5/04C08K5/17C08L1/00C08L7/00C08L21/00C08L25/18C08L27/00C08L29/10C08L33/00C08L33/02C08L47/00C08F214/16
    • C08F14/18C08F2438/01
    • An easily cross linkable fluorine-containing polymer comprising: (1) a polymeric chain comprising one or more polymer segments, at least one polymer segment of which consists of units of at least one fluorine-containing ethylenically unsaturated compound having 2 to 8 carbon atoms, or units of said fluorine-containing ethylenically unsaturated compound and at least one other monomer selected from the group consisting a fluorine-free ethylenically unsaturated compound having 2 to 4 carbon atoms and a fluorine-containing diene having 4 to 8 carbon atoms, (2) at least one bromine atom liberated from a brominated compound of the formula: RBr.sub.x (wherein R is a saturated hydrocarbon residue and x is a number corresponding to the bonding valency of the residue R) in an amount of 0.001 to 10% by weight based on the polymer weight and (3) a fragment of the brominated compound excluding the said liberated bromine atom therefrom, bonded to the polymeric chain, the polymer being prepared by polymerizing said fluorine-containing ethylenically unsaturated compound with or without said other monomer in the presence of a radical producing source and the brominated compound in at least one step.
    • 一种易交联的含氟聚合物,包括:(1)包含一个或多个聚合物链段的聚合物链,其至少一个聚合物链段由至少一个具有2-8个碳原子的含氟烯属不饱和化合物的单元组成, 或所述含氟烯键式不饱和化合物的单元和选自具有2-4个碳原子的无氟烯键式不饱和化合物和具有4-8个碳原子的含氟二烯烃的至少一种其它单体,(2) 从以下式的溴化化合物释放的至少一个溴原子:基于以下化学式的溴化化合物:RBrx(其中R是饱和烃残基,x是对应于残基R的键合化合价的数),其量为0.001至10重量%,基于 聚合物重量和(3)除了结合到聚合物链上的所述释放的溴原子的溴化化合物的片段,聚合物由聚合物 在自由基产生源和溴化化合物的存在下,在至少一个步骤中使含有或不含所述其它单体的含氟烯键式不饱和化合物的化学化。
    • 8. 发明授权
    • Fluorine-containing elastomeric copolymer
    • 含氟弹性共聚物
    • US4696989A
    • 1987-09-29
    • US849734
    • 1986-04-09
    • Masahiko OkaYutaka UetaHideo KanoMasayasu TomodaShoji Kawachi
    • Masahiko OkaYutaka UetaHideo KanoMasayasu TomodaShoji Kawachi
    • C08F14/28C08F214/18C08F214/22C08F214/26C08F214/28H01B3/44C08F14/18C08F14/22
    • H01B3/445C08F214/18
    • A copolymer comprising repeating units derived from tetrafluoroethylene, vinylidene fluoride and hexafluoropropylene in a molar ratio within an area defined on a tetrafluoroethylene, vinylidene fluoride and hexafluoropropylene ternary composition diagram by a hexagon with its first vertex A at 34.0% by weight of tetrafluoroethylene, 8.5% by weight of vinylidene fluoride and 57.5% by weight of hexafluoropropylene; its second vertex B at 26.5% by weight of tetrafluoroethylene, 14.5% by weight of vinylidene fluoride and 59.0% by weight of hexafluoropropylene; its third vertex C at 31.0% by weight of tetrafluoroethylene, 24.0% by weight of vinylidene fluoride and 45.0% by weight of hexafluoropropylene; its fourth vertex D at 49.0% by weight of tetrafluoroethylene, 26.5% by weight of vinylidene fluoride and 24.5% by weight of hexafluoropropylene; its fifth vertex E at 49.0% by weight of tetrafluoroethylene, 11.0% by weight of vinylidene fluoride and 40.0% by weight of hexafluoropropylene; and its sixth vertex F at 50.0% by weight of tetrafluoroethylene, 9.0% by weight of vinylidene fluoride and 41.0% by weight of hexafluoropropylene having not only good flexibility, heat resistance and flame retardance but also good insulating performance and moldability.
    • 包含衍生自四氟乙烯,偏二氟乙烯和六氟丙烯的重复单元的摩尔比在四氟乙烯,偏二氟乙烯和六氟丙烯三元组成图中的四边形组成图中,其第一顶点A为34.0重量%的四氟乙烯,8.5重量% 的偏二氟乙烯和57.5重量%的六氟丙烯; 其第二顶点B为26.5重量%的四氟乙烯,14.5重量%的偏二氟乙烯和59.0重量%的六氟丙烯; 其第三顶点C为31.0重量%的四氟乙烯,24.0重量%的偏二氟乙烯和45.0重量%的六氟丙烯; 其第四顶点D为49.0重量%的四氟乙烯,26.5重量%的偏二氟乙烯和24.5重量%的六氟丙烯; 其第五顶点E为49.0重量%的四氟乙烯,11.0重量%的偏二氟乙烯和40.0重量%的六氟丙烯; 其第四顶点F为40.0重量%的四氟乙烯,9.0重量%的偏二氟乙烯和41.0重量%的六氟丙烯,不仅具有良好的柔韧性,耐热性和阻燃性,而且具有良好的绝缘性能和成型性。
    • 10. 发明授权
    • Cross linkable fluorine-containing polymer and its production
    • 可交联含氟聚合物及其生产
    • US4243770A
    • 1981-01-06
    • US894256
    • 1978-04-07
    • Masayoshi TatemotoTakeshi SuzukiMasayasu TomodaYasuyoshi FurukawaYutaka Ueta
    • Masayoshi TatemotoTakeshi SuzukiMasayasu TomodaYasuyoshi FurukawaYutaka Ueta
    • C08F2/00C08F2/38C08F8/18C08F10/00C08F14/00C08F14/18C08F14/22C08F214/18C08K5/00C09K3/10C08F14/16
    • C08F8/18C08F14/22C08F2438/01
    • An easily cross linkable fluorine-containing polymer substantially comprising: (1) a polymeric chain comprising one or more polymer segments, of which at least one polymer segment consisting of units of vinylidene fluoride alone or of units of vinylidene fluoride and one or more of other fluoroolefins, and (2) at least one iodine atom liberated from an iodinated compound of the formula: RI.sub.x (wherein R is a saturated or unsaturated fluorohydrocarbon or chlorofluorohydrocarbon residue having 1 to 8 carbon atoms and x is an integer of 1 or 2 corresponding to the bonding valency of the residue R) in an amount of 0.001 to 10% by weight based on the polymer and (3) a fragment of the iodinated compound excluding the said liberated iodine atom therefrom, which are bonded to the polymeric chain and being prepared by polymerizing vinylidene fluoride with or without one or more of the other fluoroolefins in the presence of a radical producing source and the iodinated compound or its reaction product with the said monomer(s) in one or more steps, the other fluoroolefins being selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene, trifluoroethylene, vinyl fluoride, hexafluoropropylene, pentafluoropropylene, perfluoro(methyl vinyl ether), perfluoro(ethyl vinyl ether) and perfluoro(propyl vinyl ether).
    • 一种容易交联的含氟聚合物,其基本上包括:(1)包含一个或多个聚合物链段的聚合物链,其中至少一个聚合物链段由单偏氟乙烯单元或偏二氟乙烯单元和其它一个或多个单元组成 氟化烯烃,和(2)从下式的碘化化合物释放的至少一个碘原子:其中R是具有1至8个碳原子的饱和或不饱和氟代烃或氯氟烃残基,x是1或2的整数,对应于 残留物R的键合化合价)为0.001〜10重量%,(3)与该聚合物链结合的碘化合物不包括在内的碘化合物的片段, 通过在自由基产生源和碘化化合物或其反应产物存在下聚合具有或不具有一种或多种其它氟代烯烃的偏二氟乙烯 一个或多个步骤中的所述单体,其它氟烯烃选自四氟乙烯,三氟氯乙烯,三氟乙烯,氟乙烯,六氟丙烯,五氟丙烯,全氟(甲基乙烯基醚),全氟(乙基乙烯基醚) 和全氟(丙基乙烯基醚)。