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2. 发明申请

WO02086916A2 OPTICAL FIBRE SUBMARINE REPEATER CABLE WITH COMBINED INSULATION/JACKET 审中-公开
标题翻译：具有组合绝缘/夹克的光纤复合电缆
公开(公告)号：WO02086916A2
公开(公告)日：2002-10-31
申请号：PCT/SE0200490
申请日：2002-03-15
申请人： BOREALIS TECH OY , MARTINSSON HANS-BERTIL , LAURENSEN PAUL , HAMPTON ROBERT NIGEL
发明人： MARTINSSON HANS-BERTIL , LAURENSEN PAUL , HAMPTON ROBERT NIGEL
IPC分类号： G02B6/44 , H01B11/22
CPC分类号： G02B6/4427 , G02B6/443
摘要： An optical fibre submarine repeater cable with combined insulation/jacket is disclosed. The optical fibre submarine repeater cable with combined insulation/jacket is characterised in that the combined insulation/jacket comprises at least two layers of which one layer is an insulating layer, and of which an inner layer, that is situated on the inside of the insulating layer, has a resistivity that is lower than that of the insulating layer, so that the ratio of the resistivity of the inner layer to the resistivity of the insulating layer is less than 0.3:1. Preferably, the inner layer comprises the same base polymer as the insulating layer. It is preferred that the insulating layer comprises a multi-modal polyolefin that has been obtained by polymerisation of at least one olefin in at least two stages and has a density of 0.955 g/cm and a melt flow rate (MFR2) of 0.2-3.0 g/10 min, and that the multimodal polyolefin comprises at least a first and a second polyolefin fraction, of which the first fraction has either (a) a density of 0.930-0.975 g/cm and a melt flow rate (MFR2) of 50-2000 g/10 min, or (b) a density of 0.88-0.93 g/cm and a melt flow rate (MFR2) of 0.01-0.8 g/10 min.
摘要翻译：公开了具有组合绝缘/护套的光纤海底中继电缆。具有组合绝缘/护套的光纤海底中继电缆的特征在于，组合的绝缘/护套包括至少两层，其中一层是绝缘层，其中内层位于绝缘层的内侧具有低于绝缘层的电阻率，使得内层的电阻率与绝缘层的电阻率之比小于0.3:1。优选地，内层包含与绝缘层相同的基础聚合物。优选绝缘层包括通过至少两个阶段聚合至少一种烯烃并且具有0.955g / cm 3的密度和熔体流动速率（MFR 2）获得的多模聚烯烃 0.2-3.0g / 10min，并且多峰聚烯烃包含至少第一和第二聚烯烃部分，其中第一部分具有（a）密度为0.930-0.975g / cm 3和熔体流动速率（MFR 2）为50-2000g / 10min，或（b）密度为0.88-0.93g / cm 3，熔体流动速率（MFR 2）为0.01-0.8g / 10min。

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