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    • 9. 发明申请
    • STRIPPABLE SEMICONDUCTIVE COMPOSITION COMPRISING LOW MELT TEMPERATURE POLYOLEFIN
    • 包含低熔点聚烯烃的可剥离的半导体组合物
    • US20110114365A1
    • 2011-05-19
    • US12988526
    • 2009-05-04
    • Ulf TorgersenKarl-Michael JägerOla FagrellEric MarsdenDominic Kung
    • Ulf TorgersenKarl-Michael JägerOla FagrellEric MarsdenDominic Kung
    • H01B7/00H01B1/24
    • C08L23/0869C08L23/142C08L2314/06C08L2666/06
    • The present invention relates to a semiconductive polymer composition having easily controllable stripping characteristics, especially for an electric power cable. The semiconductive polymer composition comprises an ethylene copolymer comprising polar co-monomer units, wherein the amount of the polar co-monomer units in the ethylene copolymer is 10 wt. % or more, based on the total weight of the ethylene copolymer; an olefin copolymer comprising propylene monomer units and monomer units of an alpha-olefin having at least 4 carbon atoms, wherein the olefin copolymer has a melting point of 110° C. or less, and carbon black in an amount of from 10 to 50 wt. %, based on the total weight of the semiconductive polymer composition, wherein the olefin copolymer (B) is prepared by using a metallocene polymerisation catalyst. The composition provides improved strippability and enhanced mechanical as well as electrical property profile.
    • 本发明涉及具有容易控制的剥离特性的半导体聚合物组合物,特别是对于电力电缆。 半导电聚合物组合物包含含有极性共聚单体单元的乙烯共聚物,其中乙烯共聚物中极性共聚单体单元的量为10重量% %以上,基于乙烯共聚物的总重量; 包含丙烯单体单元和具有至少4个碳原子的α-烯烃的单体单元的烯烃共聚物,其中所述烯烃共聚物的熔点为110℃以下,碳黑的量为10〜50重量% 。 %,基于半导体聚合物组合物的总重量,其中烯烃共聚物(B)通过使用茂金属聚合催化剂制备。 该组合物提供改善的剥离性和增强的机械以及电性能特征。