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1. 发明申请

WO1997003124A1 CABLE-SHEATHING COMPOSITION 审中-公开
标题翻译：电缆剥离组合物
公开(公告)号：WO1997003124A1
公开(公告)日：1997-01-30
申请号：PCT/SE1996000900
申请日：1996-07-03
申请人： BOREALIS POLYMERS OY , ROGESTEDT, Laila , MARTINSSON, Hans-Bertil , ASUMALATHI, Markku , ÄÄRILÄ, Jari
发明人： BOREALIS POLYMERS OY
IPC分类号： C08L23/04
CPC分类号： H01B3/44 , C08F210/16 , C08L23/04 , C08L23/0815 , C08L2205/02 , G02B6/443 , Y10T428/2933 , Y10T428/2938 , Y10T428/294 , Y10T428/2947 , C08F2/001 , C08L2666/04 , C08F210/08 , C08F2500/12 , C08F2500/05 , C08F2500/13 , C08F2500/07
摘要： A cable-sheating composition and its use as outer sheath for a power cable or a communication cable are disclosed. The cable-sheating composition is a multimodal, preferably bimodal, mixture of olefin polymers, preferably ethylene plastics, having a density of about 0.915-0.955 g/cm and a melt flow rate of about 0.1-0.3 g/10 min, said olefin polymer mixture comprising at least a first and a second olefin polymer, of which the first has a density and a melt flow rate selected from (a) about 0.930-0.975 g/cm and about 50-2000 g/10 min and (b) about 0.88-0.93 g/cm and about 0.1-0.8 g/10 min. Preferably, the olefin polymer mixture has been obtained by coordination-catalysed polymerisation of at least one alpha -olefin in several stages, preferably two stages consisting of a loop reactor/a gas-phase reactor or a gas-phase reactor/a gas-phase reactor, through polymerisation or copolymerisation of ethylene in the first stage and copolymerisation of ethylene with butene, 4-methyl-1-pentene, 1-hexene or 1-octene in the second stage.
摘要翻译：公开了一种电缆护套组合物及其用作电力电缆或通信电缆的外护套的用途。电缆护套组合物是密度为约0.915-0.955g / cm 3和约0.1-0.3g / 10min的熔体流动速率的多峰，优选双峰的烯烃聚合物，优选乙烯塑料的混合物，所述烯烃聚合物混合物包含至少第一和第二烯烃聚合物，其中第一烯烃聚合物的密度和熔体流动速率选自（a）约0.930-0.975g / cm 3和约50-2000g / 10 min和（b）约0.88-0.93g / cm 3和约0.1-0.8g / 10min。优选地，烯烃聚合物混合物是通过几个阶段的至少一种α-烯烃的配位催化聚合获得的，优选由环流反应器/气相反应器或气相反应器/气相反应器，通过在第一阶段中乙烯的聚合或共聚合，在第二阶段中乙烯与丁烯，4-甲基-1-戊烯，1-己烯或1-辛烯的共聚合。

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