Cross linkable fluorine-containing polymer
    1.
    发明授权
    Cross linkable fluorine-containing polymer 失效
    可交联的含氟聚合物

    公开(公告)号:US4501869A

    公开(公告)日:1985-02-26

    申请号:US517334

    申请日:1983-07-26

    CPC分类号: C08F14/18 C08F2438/01

    摘要: 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.

    摘要翻译: 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。

    Cross linkable fluorine-containing polymer and its production
    3.
    发明授权
    Cross linkable fluorine-containing polymer and its production 失效
    可交联含氟聚合物及其生产

    公开(公告)号:US4243770A

    公开(公告)日:1981-01-06

    申请号:US894256

    申请日:1978-04-07

    摘要: 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).

    摘要翻译: 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)。

    Fluoride-containing polymer and composition containing same
    4.
    发明授权
    Fluoride-containing polymer and composition containing same 失效
    含氟聚合物和含有其的组合物

    公开(公告)号:US4530972A

    公开(公告)日:1985-07-23

    申请号:US428703

    申请日:1982-09-30

    摘要: A fluorine-containing polymer substantially comprising (A) at least one fluorine-containing olefin of the formula:CF.sub.2 =CXYwherein X is a hydrogen atom or a fluorine atom and Y is a hydrogen atom, a chlorine atom, a fluorine atom, a trifluoromethyl group, a difluoromethyl group, a C.sub.1 -C.sub.3 perfluoroalkoxy group or a group of the formula:--(CF.sub.2).sub.m COOMwherein m is an integer of 0 to 3 and M is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a sodium atom or a potassium atom but when X is a hydrogen atom, Y is always a hydrogen atom, (B) one or more C.sub.4 -C.sub.8 fluorine-containing dienes, (C) at least one iodine atom and (D) at least one saturated or unsaturated fluoro or chlorofluorohydrocarbon group, the molar ratio of the diene (B) and the olefin (A) being from 1.times.10.sup.-4 to 5.times.10.sup.-2, the iodine atom(s) (C) being from 0.001 to 10% by weight based on the weight of the polymer and the molar ratio of the group (D) and the olefin (A) being from 1.times.10.sup.-5 to 5.times.10.sup.-2, can be cross-linked at atmospheric pressure at a cross-linking temperature in the presence of a cross-linking agent. The fluorine-containing polymer may be prepared by polymerizing (B) with the polymerization reaction product of (A) and an iodide compound.

    摘要翻译: 一种含氟聚合物,其基本上包含(A)至少一种下式的含氟烯烃:CF2 = CXY其中X是氢原子或氟原子,Y是氢原子,氯原子,氟原子, 三氟甲基,二氟甲基,C1-C3全氟烷氧基或下式的基团: - (CF2)mCOOM其中m为0-3的整数,M为氢原子,C1-C4烷基,钠 原子或钾原子,但当X为氢原子时,Y始终为氢原子,(B)一种或多种C 4 -C 8含氟二烯,(C)至少一个碘原子和(D)至少一个饱和 或不饱和氟代或氯氟烃基,二烯(B)和烯烃(A)的摩尔比为1×10 -4至5×10 -2,碘原子(C)为0.001至10重量% 关于聚合物的重量和(D)和烯烃(A)的摩尔比为1×10-5至5×10-2的摩尔比可以在大气压下在cro 在交联剂存在下的β-连接温度。 含氟聚合物可以通过(B)与(A)的聚合反应产物和碘化物化合物聚合来制备。

    Fluororubber composition and molded article thereof
    7.
    发明授权
    Fluororubber composition and molded article thereof 失效
    氟橡胶组合物及其模塑制品

    公开(公告)号:US5891941A

    公开(公告)日:1999-04-06

    申请号:US669287

    申请日:1996-06-28

    CPC分类号: C08K5/17

    摘要: A fluororubber composition comprising a fluororubber, a vulcanizing agent and 0.1 to 5 wt. parts of a fatty acid monoamide per 100 wt. parts of said fluororubber. This fluororubber composition is excellent in mold releasability, and a molded article obtained by vulcanizing and molding the composition suffers less deterioration of mechanical properties caused by the addition of an internal mold release agent.

    摘要翻译: PCT No.PCT / JP94 / 02180 Sec。 371日期:1996年6月28日 102(e)日期1996年6月28日PCT 1994年12月22日PCT公布。 WO95 / 18182 PCT出版物 日期1995年7月6日一种氟橡胶组合物,其包含氟橡胶,硫化剂和0.1至5重量% 每100重量份的脂肪酸单酰胺部分 部分所述氟橡胶。 这种氟橡胶组合物的脱模性优异,通过硫化和成型组合物得到的成型体的加入内部脱模剂引起的机械性能的劣化较少。

    Novel impregnated material of a copolymer of tetrafluoroethylene and
perfluoroalkyl vinyl ether
    9.
    发明授权
    Novel impregnated material of a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether 失效
    四氟乙烯和全氟烷基乙烯基醚共聚物的新型浸渍材料

    公开(公告)号:US4670328A

    公开(公告)日:1987-06-02

    申请号:US834554

    申请日:1986-02-28

    摘要: An impregnated material comprising an organic or inorganic material selected from the group consisting of a woven fabric, a non-woven fabric and an open cell porous material which is impregnated with a copolymer which comprises 50 to 95% by mole of repeating units derived from tetrafluoroethylene and 5 to 50% by mole of repeating units derived from perfluoroalkyl vinyl ether of the formula:CF.sub.2 .dbd.CFOR.sub.f (I)wherein R.sub.f is a C.sub.1 -C.sub.6 perfluoroalkyl group or a group of the formula:--(CF.sub.2 CFXO).sub.n --R.sub.f (II)wherein R.sub.f is the same as defined above, X is a fluorine atom or a trifluoromethyl group and n is an integer of 1 to 10, which has good chemical, corrosion, solvent and oil resistance as well as water- and oil-repellence.

    摘要翻译: 包含有机或无机材料的浸渍材料,该有机材料或无机材料选自织造织物,无纺织物和开孔细孔多孔材料,该共聚物浸渍有包含50-95%(摩尔)衍生自四氟乙烯的重复单元 和5至50摩尔%的衍生自下式的全氟烷基乙烯基醚的重复单元:CF 2 = CFOR f(I)其中R f是C 1 -C 6全氟烷基或下式的基团: - (CF 2 CFXO)n -R f )其中Rf与上述定义相同,X为氟原子或三氟甲基,n为1〜10的整数,具有良好的化学,腐蚀,溶剂和耐油性以及拒水拒油性。

    Fluorine-containing elastomeric copolymers, process for preparing the
same and composition containing the same
    10.
    发明授权
    Fluorine-containing elastomeric copolymers, process for preparing the same and composition containing the same 失效
    含氟弹性体共聚物,其制备方法和含有该共聚物的组合物

    公开(公告)号:US4141874A

    公开(公告)日:1979-02-27

    申请号:US740772

    申请日:1976-11-10

    IPC分类号: C08F2/16 C08F259/08 C08L27/16

    CPC分类号: C08F259/08

    摘要: 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.

    摘要翻译: 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。