Nitroxide Compounds for Minimizing Scorch in Crosslinkable Compositions
    23.
    发明申请
    Nitroxide Compounds for Minimizing Scorch in Crosslinkable Compositions 失效
    用于最小化可交联组合物焦烧的硝酸化合物

    公开(公告)号:US20090069469A1

    公开(公告)日:2009-03-12

    申请号:US12267909

    申请日:2008-11-10

    IPC分类号: C08K5/3435 C07D211/94

    摘要: Scorch is inhibited during the free-radical crosslinking of a crosslinkable polymer, e.g., an EPDM, by incorporating into the polymer before melt processing and crosslinking a scorch inhibiting amount of a derivative, preferably an ether, ester or urethane derivative, of a TEMPO compound, e.g., 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl. The scorch inhibitors of this invention perform as well, if not better, than their 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl counterparts in similar polymer compositions and under similar conditions in terms of scorch inhibition and ultimate degree of crosslinking, but exhibit less volatility and less migration within the polymer composition.

    摘要翻译: 在可交联聚合物(例如EPDM)的自由基交联期间,通过在熔融加工和交联焦烧抑制量的TEMPO化合物的衍生物,优选醚,酯或氨基甲酸酯衍生物的交联之前引入聚合物中,焦烧被抑制 ,例如4-羟基 - 四氢环丁基哌啶-1-基。 在类似的聚合物组合物和类似的条件下,本发明的焦烧抑制剂(如果不是更好)也与其4-羟基 - 四烃基哌啶-1-氧基对应物一样,在焦烧抑制和最终交联度方面也表现出较低的挥发性, 聚合物组合物内迁移少。

    Nitroxide compounds for minimizing scorch in crosslinkable compositions
    24.
    发明授权
    Nitroxide compounds for minimizing scorch in crosslinkable compositions 失效
    用于最小化可交联组合物中焦化的硝酸氧化物

    公开(公告)号:US07465769B2

    公开(公告)日:2008-12-16

    申请号:US11539815

    申请日:2006-10-09

    IPC分类号: C08F8/30

    摘要: Scorch is inhibited during the free-radical crosslinking of a crosslinkable polymer, e.g., an EPDM, by incorporating into the polymer before melt processing and crosslinking a scorch inhibiting amount of a derivative, preferably an ether, ester or urethane derivative, of a TEMPO compound, e.g., 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl. The scorch inhibitors of this invention perform as well, if not better, than their 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl counterparts in similar polymer compositions and under similar conditions in terms of scorch inhibition and ultimate degree of crosslinking, but exhibit less volatility and less migration within the polymer composition.

    摘要翻译: 在可交联聚合物(例如EPDM)的自由基交联期间,通过在熔融加工和交联焦烧抑制量的TEMPO化合物的衍生物,优选醚,酯或氨基甲酸酯衍生物的交联之前引入聚合物中,焦烧被抑制 ,例如4-羟基 - 四氢环丁基哌啶-1-基。 在类似的聚合物组合物和类似的条件下,本发明的焦烧抑制剂(如果不是更好)也与其4-羟基 - 四烃基哌啶-1-氧基对应物一样,在焦烧抑制和最终交联度方面也表现出较低的挥发性, 聚合物组合物内迁移少。

    Polyethylene crosslinkable composition
    26.
    发明授权
    Polyethylene crosslinkable composition 有权
    聚乙烯交联组合物

    公开(公告)号:US06191230B1

    公开(公告)日:2001-02-20

    申请号:US09359241

    申请日:1999-07-22

    IPC分类号: C08F27102

    摘要: A masterbatch composition comprising: (a) a copolymer of ethylene and 1-octene prepared with a metallocene catalyst; (b) as a scorch inhibitor, a substituted hydroquinone; 4,4′-thiobis(2-methyl-6-t-butylphenol); 4,4′-thiobis(2-t-butyl-5-methylphenol); or mixtures thereof; (c) as a cure booster, triallyl trimellitate; 3,9-divinyl-2,4,8,10-tetra-oxaspiro[5.5]undecane; triallylcyanurate; triallyl isocyanurate; or mixtures thereof; and (d) an organic peroxide.

    摘要翻译: 一种母料组合物,其包含:(a)由茂金属催化剂制备的乙烯和1-辛烯的共聚物;(b)作为焦烧抑制剂,取代的氢醌; 4,4'-硫代双(2-甲基-6-叔丁基苯酚); 4,4'-硫代双(2-叔丁基-5-甲基苯酚); 或其混合物;(c)作为固化促进剂,偏苯三酸三烯丙酯; 3,9-二乙烯基-2,4,8,10-四氧杂螺[5.5]十一烷; 三烯氰基脲 三烯丙基异氰脲酸酯; 或其混合物; 和(d)有机过氧化物。

    Tree resistant cable
    27.
    发明授权
    Tree resistant cable 失效
    耐树电缆

    公开(公告)号:US5837939A

    公开(公告)日:1998-11-17

    申请号:US733689

    申请日:1996-10-17

    IPC分类号: H01B3/44 H01B7/28

    摘要: A cable having one or more electrical conductors or a core of electrical conductors, each electrical conductor or core being surrounded by an insulating composition, essentially free from water tree growth inhibitors, having (i) a polyethylene having a density in the range of 0.860 to 0.940 gram per cubic centimeter; and, based on 100 parts by weight of component (i), (ii) about 0.2 to about 1 part by weight of a homopolymer of propylene with the proviso that the insulating composition is extruded at a temperature below the melting point of the homopolymer of propylene.

    摘要翻译: 一种具有一个或多个电导体或电导体核心的电缆,每个电导体或芯体被绝缘组合物包围,绝缘组合物基本上不含水树生长抑制剂,其具有(i)密度在0.860至 0.940克/立方厘米; 并且基于100重量份的组分(i),(ii)约0.2至约1重量份的丙烯均聚物,条件是绝缘组合物在低于所述均聚物的熔点的温度下挤出 丙烯。