Plenum Cable Flame Retardant Layer/Component with Excellent Aging Properties
    13.
    发明申请
    Plenum Cable Flame Retardant Layer/Component with Excellent Aging Properties 审中-公开
    Plenum电缆阻燃层/具有优异老化性能的组件

    公开(公告)号:US20080251273A1

    公开(公告)日:2008-10-16

    申请号:US11817326

    申请日:2006-03-03

    CPC分类号: H01B7/295

    摘要: The present invention is a plenum cable component with excellent fire retardant and aging properties. The plenum cable component is prepared from a polyolefin-based composition, containing an olefinic polymer and a surface treated metal hydroxide. Depending upon the surface treatment, the composition may comprise other components. The present invention is also a method for selecting a composition for preparing the plenum cable component as a separator and a method for preparing a communications cable therefrom.

    摘要翻译: 本发明是具有优异的阻燃和老化性能的集气室电缆部件。 气室电缆组件由含有烯烃聚合物和经表面处理的金属氢氧化物的基于聚烯烃的组合物制备。 根据表面处理,组合物可以包含其它组分。 本发明还是一种选择用于制备作为隔板的集气室电缆部件的组合物的方法以及从其制备通信电缆的方法。

    Flame retardant plenum cable
    14.
    发明授权
    Flame retardant plenum cable 有权
    阻燃增压电缆

    公开(公告)号:US07265296B2

    公开(公告)日:2007-09-04

    申请号:US10565914

    申请日:2005-05-05

    IPC分类号: H01B7/00

    CPC分类号: H01B7/295 H01B3/441

    摘要: The present invention is a flame retardant cable having an insulated conductor and at least two insulation layers. The cable demonstrates a composite dielectric constant less than or equal to about 2.6 and a composite dissipation factor less than or equal to 0.005 even though one of the insulation layers has a dielectric constant greater than 2.6 or a dissipation factor greater than 0.005. The presently invented cable is achieved with a non-halogenated polyolefin as an insulation layer polymer, where the polyolefin having relatively poor dielectric/dissipative properties and the insulation layer composition being substantially free of halogenated or antimony trioxide flame retardant additives.

    摘要翻译: 本发明是一种具有绝缘导体和至少两个绝缘层的阻燃电缆。 电缆表现出小于或等于约2.6的复合介电常数,以及小于或等于0.005的复合耗散因数,即使绝缘层之一具有大于2.6的介电常数或大于0.005的耗散因数。 本发明的电缆通过非卤化聚烯烃作为绝缘层聚合物实现,其中聚烯烃具有相对较差的介电/耗散性能,绝缘层组合物基本上不含卤化或三氧化锑阻燃添加剂。

    Method for producing water tree-resistant, TRXLPE-type cable sheath
    17.
    发明授权
    Method for producing water tree-resistant, TRXLPE-type cable sheath 有权
    生产防水树脂TRXLPE型电缆护套的方法

    公开(公告)号:US09058918B2

    公开(公告)日:2015-06-16

    申请号:US12993287

    申请日:2009-05-18

    CPC分类号: H01B7/282 H01B13/148

    摘要: TRXLPE-type cable sheaths are prepared by a method in which a solid polymer is mixed with a liquid water tree-resistant agent either by dosing or direct injection. In the dosing method, the solid polymer, e.g., high pressure LDPE, is sprayed or otherwise contacted with the liquid agent, e.g., PEG, the agent is allowed to absorb into the polymer, and the polymer with absorbed agent is then fed to an extrusion apparatus for extrusion over a sheathed or unsheathed wire or optic fiber. In the direct injection method, the solid polymer is first fed to an extrusion apparatus, and the liquid agent is sprayed or otherwise contacted with the polymer before the two are blended with one another through the action of the mixing elements of the apparatus.

    摘要翻译: TRXLPE型电缆护套通过一种方法制备,其中固体聚合物通过定量给药或直接注射与液体耐水树胶混合。 在定量给料方法中,固体聚合物例如高压LDPE被喷射或以其它方式与液体试剂(例如PEG)接触,使试剂吸收到聚合物中,然后将具有吸收剂的聚合物进料到 用于在护套或未涂覆的线或光纤上挤出的挤出设备。 在直接注射方法中,首先将固体聚合物进料到挤出装置中,并且通过装置的混合元件的作用将液体剂彼此喷雾或以其它方式与聚合物接触。

    Coated conductor with voltage stabilized inner layer
    18.
    发明授权
    Coated conductor with voltage stabilized inner layer 有权
    具有电压稳定内层的涂层导体

    公开(公告)号:US09040828B2

    公开(公告)日:2015-05-26

    申请号:US13822236

    申请日:2011-09-23

    IPC分类号: H01B3/44 C08K5/3492 H01B7/28

    摘要: Disclosed are polymeric compositions with improved breakdown strength. The polymeric compositions contain a polyolefin and a voltage stabilizing agent. The voltage stabilizing agent contains a triazine. The triazine may include a substituent that enables keto-enol tautomerism, which provides the voltage stabilizing agent with additional energy dissipation capacity. The present polymeric compositions exhibit improved breakdown strength when applied as an insulating layer for power cable.

    摘要翻译: 公开了具有改进的击穿强度的聚合物组合物。 聚合物组合物含有聚烯烃和电压稳定剂。 电压稳定剂含有三嗪。 三嗪可以包括能够产生酮 - 烯醇互变异构的取代基,其为电压稳定剂提供额外的能量耗散能力。 当用作电力电缆的绝缘层时,本发明的聚合物组合物表现出改进的击穿强度。