HIGH ELONGATION FKM FORMULATIONS WITH IMPROVED MOLDING PROPERTIES
    31.
    发明申请
    HIGH ELONGATION FKM FORMULATIONS WITH IMPROVED MOLDING PROPERTIES 审中-公开
    具有改进的成型性能的高延伸FKM配方

    公开(公告)号:WO2007092339A3

    公开(公告)日:2008-01-24

    申请号:PCT/US2007002944

    申请日:2007-02-02

    CPC classification number: C08L27/18 C08L2205/02 C08L2666/04

    Abstract: It has been found that certain peroxide/coagent crosslinked blends of a peroxide- crosslinkable FKM fluoroelastomer with a similar non-peroxide crosslinkable FKM fluoroelastomer exhibit increased elongation to rupture, improved demoldability, and slightly reduced durometer compared to prior art peroxide-cured FKMs. The degree to which these desirable changes are realized is greatest when the monomer ratios of the peroxide-crosslinkable FKM fluoroelastomer are similar to the monomer ratios of the non-peroxide crosslinkable FKM. The improved demoldability of these compositions is believed to be due to improved hot tear strength and especially increased elongation at molding temperature; these properties are important in the process of removing complex parts from a mold after forming, whether by compression, transfer, or injection molding. Hot tear strength and elongation are especially important in removal of FKM molded parts with "undercuts" in the mold. In particular, these blends exhibit better demoldability than similar purely peroxide-crosslinked FKM compounds, without being sticky. These compositions are also useful without post cure (as are standard peroxide-cured FKMs, especially those with iodine cure sites).

    Abstract translation: 已经发现,与现有技术的过氧化物固化的FKM相比,过氧化物可交联的FKM含氟弹性体与类似的非过氧化物可交联的FKM含氟弹性体的某些过氧化物/助剂交联的共混物表现出增加的断裂伸长率,改进的脱模性和略微降低的硬度。 当过氧化物可交联的FKM含氟弹性体的单体比与非过氧化物可交联FKM的单体比相似时,实现这些期望变化的程度最大。 这些组合物的改进的脱模性被认为是由于改进的热撕裂强度和特别是在成型温度下增加的伸长率; 这些性能在成型后通过压缩,转移或注塑成型除去模具中的复杂部件的过程是重要的。 热撕裂强度和伸长率在模具中用“底切”去除FKM模制件时特别重要。 特别地,这些共混物表现出比类似的纯过氧化物交联的FKM化合物更好的脱模性,而不粘。 这些组合物在没有后固化的情况下也是有用的(如标准的过氧化物固化的FKM,特别是具有碘固化位点的那些)。

    HIGH ELONGATION FKM FORMULATIONS WITH IMPROVED MOLDING PROPERTIES
    35.
    发明申请
    HIGH ELONGATION FKM FORMULATIONS WITH IMPROVED MOLDING PROPERTIES 审中-公开
    具有改进的成型性能的高延伸FKM配方

    公开(公告)号:WO2007092339A2

    公开(公告)日:2007-08-16

    申请号:PCT/US2007/002944

    申请日:2007-02-02

    CPC classification number: C08L27/18 C08L2205/02 C08L2666/04

    Abstract: It has been found that certain peroxide/coagent crosslinked blends of a peroxide- crosslinkable FKM fluoroelastomer with a similar non-peroxide crosslinkable FKM fluoroelastomer exhibit increased elongation to rupture, improved demoldability, and slightly reduced durometer compared to prior art peroxide-cured FKMs. The degree to which these desirable changes are realized is greatest when the monomer ratios of the peroxide-crosslinkable FKM fluoroelastomer are similar to the monomer ratios of the non-peroxide crosslinkable FKM. The improved demoldability of these compositions is believed to be due to improved hot tear strength and especially increased elongation at molding temperature; these properties are important in the process of removing complex parts from a mold after forming, whether by compression, transfer, or injection molding. Hot tear strength and elongation are especially important in removal of FKM molded parts with "undercuts" in the mold. In particular, these blends exhibit better demoldability than similar purely peroxide-crosslinked FKM compounds, without being sticky. These compositions are also useful without post cure (as are standard peroxide-cured FKMs, especially those with iodine cure sites).

    Abstract translation: 已经发现,与现有技术的过氧化物固化的FKM相比,过氧化物可交联的FKM含氟弹性体与类似的非过氧化物可交联的FKM含氟弹性体的某些过氧化物/助剂交联的共混物表现出增加的断裂伸长率,改进的脱模性和略微降低的硬度。 当过氧化物可交联的FKM含氟弹性体的单体比与非过氧化物可交联FKM的单体比相似时,实现这些期望变化的程度最大。 这些组合物的改进的脱模性被认为是由于改进的热撕裂强度和特别是在成型温度下增加的伸长率; 这些性能在成型后通过压缩,转移或注塑成型除去模具中的复杂部件的过程是重要的。 热撕裂强度和伸长率在模具中用“底切”去除FKM模制件时特别重要。 特别地,这些共混物表现出比类似的纯过氧化物交联的FKM化合物更好的脱模性,而不粘。 这些组合物在没有后固化的情况下也是有用的(如标准的过氧化物固化的FKM,特别是具有碘固化位点的那些)。

    LAMINATE
    36.
    发明申请
    LAMINATE 审中-公开

    公开(公告)号:WO2020170025A1

    公开(公告)日:2020-08-27

    申请号:PCT/IB2019/060744

    申请日:2019-12-13

    Abstract: Adding silica particles having specified collective characteristics to a fluororubber formulation enhances direct adhesion between the fluororubber formulation and a copolymer upon curing. Specifically, as measured before being mixed into the fluororubber formulation, the silica particles have an average value of the product "(particle size) x (circularity)" that is 17.5 nm or higher and 500 μm or lower. The silica particles may also have an average particle size of between 25.0 nm inclusive and 500 μm inclusive, and an average circularity of 0.80 or higher. Alternatively, as measured after being incorporated into the fluororubber formulation and then cured, the silica particles have an apparent average value of the product "(particle size) x (circularity)" that is 32.0 nm or higher and 500 μm or lower. The silica particles may also have an apparent average particle size of between 40.0 nm inclusive and 500 μm inclusive as measured after being incorporated into the fluororubber formulation and then cured.

    FOAM ELECTRIC WIRE
    38.
    发明申请
    FOAM ELECTRIC WIRE 审中-公开
    泡沫电线

    公开(公告)号:WO2010051350A1

    公开(公告)日:2010-05-06

    申请号:PCT/US2009/062503

    申请日:2009-10-29

    CPC classification number: H01B3/445 H01B7/0233

    Abstract: A foam electric wire (15) according to the present invention can be used favorably in a variety of electric wire applications because it provides a high propagation velocity and a small transmission loss and minimizes the problems that result from outgassing and defoaming. Examples of applications include plenum twisted pair cables, coaxial cables for CATV, cables for HDMI, coaxial cables for antenna wires in mobile communications, coaxial cables for medical applications, coaxial cables for security, and coaxial cables for broadband applications. The above mentioned objective can be achieved with a foam electric wire (15), comprising a conductor (11) and a plurality of coating layers (12, 13, 14) that coat the conductor (11) and consist of perfluoro resin. At least one layer of the plurality of coating layers (12, 13, 14) is an unexpanded layer.

    Abstract translation: 根据本发明的泡沫电线(15)可以在各种电线应用中有利地使用,因为它提供了高传播速度和小的传输损耗,并且使由除气和消泡产生的问题最小化。 应用实例包括压力双绞线电缆,CATV同轴电缆,HDMI电缆,移动通信用天线用同轴电缆,医疗应用用同轴电缆,安全用同轴电缆和宽带应用的同轴电缆。 上述目的可以用泡沫电线(15)来实现,该发泡电线包括导体(11)和涂覆导体(11)并由全氟树脂组成的多个涂层(12,13,14)。 多个涂层(12,13,14)中的至少一层是未膨胀层。

    TETRAFLUOROETHYLENE/HEXAFLUOROPROPYLENE COPOLYMER AND THE PRODUCTION METHOD THEREOF, AND ELECTRICAL WIRE
    39.
    发明申请
    TETRAFLUOROETHYLENE/HEXAFLUOROPROPYLENE COPOLYMER AND THE PRODUCTION METHOD THEREOF, AND ELECTRICAL WIRE 审中-公开
    四氢氟乙烯/六氟丙烯共聚物及其生产方法和电线

    公开(公告)号:WO2009102660A1

    公开(公告)日:2009-08-20

    申请号:PCT/US2009/033555

    申请日:2009-02-09

    Abstract: A tetrafluoroethylene/hexafluoropropylene copolymer has improved moldabilit in melt extrusion molding, especially with significant reduction of defects in high-speed extrusion coating of an electrical wire. The tetrafluoroethylene/hexafluoropropylene copolymer is obtained by polymerization of at least tetrafluoroethylene and hexafluoropropylene selected from the group consisting of tetrafluoroethylene, hexafluoropropylene and a third monomer without mixing with the resin which has the melting point with the difference of 20 degree C and more from the melting point of the tetrafluoroethylene/hexafluoropropylene copolymer; and has a complex viscosity of from 2.0xI0 3 to 10.0xI0 3 Pa*s and a storage modulus of from 0.1 to 3.5 Pa*s in melt viscoelasticity measurement under the condition of atmosphere temperature of 310 degree C and angular frequency of 0.01 radian/second. The tetrafluoroethylene/hexafluoropropylene copolymer can be used in an electrical wire as a coating on a conductive core.

    Abstract translation: 四氟乙烯/六氟丙烯共聚物在熔体挤出成型中具有改进的成型性,特别是显着降低电线的高速挤出涂覆中的缺陷。 四氟乙烯/六氟丙烯共聚物通过至少四氟乙烯和六氟丙烯的选择四氟乙烯,六氟丙烯和第三单体的聚合而获得,而不与熔点差为20℃以上的树脂与熔融物 四氟乙烯/六氟丙烯共聚物; 并且在气氛温度为310℃,角频率为0.01弧度/秒的条件下,在熔体粘弹性测定中,具有2.0×10 3〜10.0×10 3 Pa * s的复数粘度和0.1〜3.5Pa·s的储能模量。 四氟乙烯/六氟丙烯共聚物可以用作导电芯上的涂层的电线。

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