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    • 8. 发明授权
    • PROCESS FOR DEGASSING CROSSLINKED POWER CABLES
    • 交联电力电缆脱气工艺
    • EP3047490B1
    • 2017-08-23
    • EP14772020.5
    • 2014-09-09
    • Dow Global Technologies LLC
    • BRIGANDI, Paul J.CHAUDHARY, Bharat I.MUNRO, Jeffrey C.MARCHAND, Gary R.
    • H01B3/44H01B13/00H01B19/02H01B9/02
    • H01B13/0016H01B1/24H01B3/441H01B9/006H01B19/02
    • A power cable comprising: (A) a conductor, (B) an insulation layer, and (C) a semiconductor layer comprising in weight percent based on the weight of the semiconductor layer: (1) 49-98% of a crosslinked olefin block copolymer (OBC) having a density less than ( ) 1, and comprising in weight percent based on the weight of the OBC: (a) 35-80% soft segment that comprises 5-50 mole percent (mol %) of units derived from a monomer comprising 3 to 30 carbon atoms; and (b) 20-65% hard segment that comprises 0.2-3.5 mol % of units derived from a monomer comprising 3 to 30 carbon atoms; (2) 2-51% conductive filler, the insulation layer and semiconductor layer in contact with one another, is degassed by a process comprising the step of exposing the cable to a temperature of at least 80° C. for a period of time of at least 24 hours.
    • 一种电力电缆,包括:(A)导体,(B)绝缘层和(C)半导体层,以半导体层的重量为基准计,包含:(1)49-98%的交联烯烃嵌段 共聚物(OBC)具有小于(<)0.9克/立方厘米(g / cm 3)的密度,大于(>)1的熔体指数并且以OBC的重量为基准计,其包含重量百分数: -80%软链段,其包含5-50摩尔%(摩尔%)的衍生自包含3-30个碳原子的单体的单元; 和(b)20-65%硬链段,其包含0.2-3.5摩尔%衍生自包含3-30个碳原子的单体的单元; (2)通过包括将电缆暴露于至少80℃的温度持续一段时间的步骤的工艺使2-51%的导电填料(彼此接触的绝缘层和半导体层)脱气 至少24小时。