发明授权
- 专利标题： Electrical cable, particularly for high voltage direct current transmission or distribution
- 专利标题（中）： 电缆，特别适用于高压直流输电或配电
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申请号： US10948161申请日： 2004-09-24
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公开(公告)号： US06960726B2公开(公告)日： 2005-11-01
- 发明人: Gabriele Perego , Enrico Albizzati
- 申请人： Gabriele Perego , Enrico Albizzati
- 申请人地址： IT Milan
- 专利权人： Pirelli Cavi e Sistemi S.p.A.
- 当前专利权人： Pirelli Cavi e Sistemi S.p.A.
- 当前专利权人地址： IT Milan
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： EP00128566 20001227
- 主分类号： C08F255/02
- IPC分类号： C08F255/02 ; H01B3/44 ; H01B7/00
摘要：
An electrical cable having at least one conductor and at least one extruded insulating coating layer. The extruded insulating coating layer includes a polymeric composition having a polyethylene grafted with at least one unsaturated carboxylic acid of general formula (I): in which: R represents H or CH3; n represents 0 or 1. The grafted polyethylene is derived from polyethylene, a radical initiator and at least one unsaturated carboxylic acid of general formula (I) in free form; and the unsaturated carboxylic acid is present in an amount of between 0.0006% and 0.25% by weight. The amount is expressed as the weight content of —COOH groups relative to the total weight of the polymeric composition.
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