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    • 4. 发明申请
    • CROSSLINKABLE POLYMERIC COMPOSITIONS WITH METHYL-RADICAL SCAVENGERS AND ARTICLES MADE THEREFROM
    • 具有甲基自由基清除剂的可交联聚合物组合物及由其制备的制品
    • WO2017166105A1
    • 2017-10-05
    • PCT/CN2016/077825
    • 2016-03-30
    • DOW GLOBAL TECHNOLOGIES LLCSUN, YabinCOGEN, Jeffrey M.LI, WeiCAI, Yu
    • SUN, YabinCOGEN, Jeffrey M.LI, WeiCAI, Yu
    • C08L23/06C08K5/14C08K5/3435C08K5/3492H01B3/44
    • Crosslinkable polymeric compositions for use in, for instance, cable insulation layers, are disclosed. The crosslinkable polymeric compositions comprise an ethylene-based polymer, an organic peroxide, a crosslinking coagent, and a methyl-radical scavenger comprising at least one derivative of 2, 2, 6, 6-tetramethyl-1-piperidinyloxy ( "TEMPO" ), such as 4-acryloxy-2, 2, 6, 6-tetramethylpiperidine-N-oxyl, 4-allyloxy-2, 2, 6, 6-tetramethylpiperidine-N-oxyl, and bis (2, 2, 6, 6-tetramethyl-1-piperidinyloxy-4-yl) sebacate, and combinations of two or more thereof, wherein ratio of crosslinking coagent to organic peroxide is less than 1.72:1 on a molar basis. A crosslinked article prepared from a crosslinkable polymeric composition is also disclosed, the crosslinkable polymeric composition comprising, inter alia , a methyl-radical scavenger comprising at least one TEMPO derivative. In addition, a coated conductor comprising a conductive core and a polymeric layer at least partially surrounding the conductive core is disclosed, wherein at least a portion of the polymeric layer comprises the crosslinked article.
    • 公开了用于例如电缆绝缘层的可交联聚合物组合物。 可交联聚合物组合物包含基于乙烯的聚合物,有机过氧化物,交联助剂和包含2,2,6,6-四甲基-1-哌啶基氧基(“TEMPO”)的至少一种衍生物的甲基自由基清除剂 例如4-丙烯酰氧基-2,2,6,6-四甲基哌啶-N-氧基,4-烯丙氧基-2,2,6,6-四甲基哌啶-N-氧基和双(2,2,6,6-四甲基哌啶基) 四甲基-1-哌啶基氧基-4-基)癸二酸酯以及它们中两种或更多种的组合,其中交联助剂与有机过氧化物的摩尔比小于1.72:1。 还公开了由可交联聚合物组合物制备的交联制品,所述可交联聚合物组合物尤其包含包含至少一种TEMPO衍生物的甲基自由基清除剂。 另外,公开了包含导电芯和至少部分包围导电芯的聚合物层的涂覆导体,其中至少一部分聚合物层包含交联制品。