Polymeric insulating material and formed article making use of the material
    2.
    发明公开
    Polymeric insulating material and formed article making use of the material 无效
    聚合物绝缘材料和使用该材料的成型制品

    公开(公告)号:EP0575111A3

    公开(公告)日:1994-02-23

    申请号:EP93304555.1

    申请日:1993-06-11

    IPC分类号: H01B3/44

    摘要: A polymeric insulating material having a high dielectric breakdown voltage comprises polypropylene which has been obtained in a yield of at least 300,000 g/g-Ti based on titanium in a catalyst upon polymerization, contains ash in an amount not greater than 40 ppm by weight when analyzed by completely burning the polypropylene in air, said ash containing titanium in an amount not greater than 1 ppm by weight based on the weight of the polypropylene, and also contains chlorine in an amount not greater than 2 ppm by weight and boiling n-heptane soluble matter in an amount not smaller than 1 wt.% but not greater than 10 wt.%. To further improve the dielectric breakdown voltage, an inorganic oxide or hydroxide free of particles of 10 µm and greater in diameter and having an average particle size not greater than 1 µm, an organopolysilane, a maleic-anhydride-grafted polypropylene, or a silane compound containing at least one organic polyether group can be added to the polypropylene.

    摘要翻译: 具有高介电击穿电压的聚合物绝缘材料包括在聚合反应的催化剂中以基于钛的至少300,000g / g-Ti的产率获得的聚丙烯,当含有不超过40ppm重量的灰分时 通过在空气中完全燃烧聚丙烯进行分析,所述含有量为基于聚丙烯重量不大于1重量ppm的钛的灰分,并且还含有不大于2重量ppm的氯和沸腾的正庚烷 可溶性物质的量不小于1重量%但不大于10重量%。 为了进一步提高绝缘击穿电压,可以使用不含直径10μm以上的粒子且平均粒径为1μm以下的无机氧化物或氢氧化物,有机聚硅烷,马来酸酐接枝聚丙烯或硅烷化合物 含有至少一个有机聚醚基团的聚合物可以添加到聚丙烯中。

    Method for molding syndiotactic polypropylene and molded article
    3.
    发明公开
    Method for molding syndiotactic polypropylene and molded article 失效
    聚丙烯和Geformstände的Formgebungsverfahren von syndiotaktischem。

    公开(公告)号:EP0451743A2

    公开(公告)日:1991-10-16

    申请号:EP91105489.8

    申请日:1991-04-07

    摘要: A method for molding a polypropylene or a propylene copolymer having a syndiotactic structure which comprises the steps of melting, molding, if desired, quenching and then stretching a propylene homopolymer or a copolymer of propylene and a small amount of ethylene or another α-olefin which has a substantially syndiotactic structure, or a mixture of the same and a small amount of a polypropylene having a substantially isotactic structure. The molded and stretched article can be heated at a temperature of a molding temperature or more, while a load is applied to the article. Furthermore, the molded and stretched article, if desired, can be treated with a hydrocarbon vapor, while a load is applied to the article. The molded article obtained by the method of the present invention has a novel crystalline structure.

    摘要翻译: 一种用于模制具有间同立构结构的聚丙烯或丙烯共聚物的方法,其包括熔融,模塑,如果需要,淬火然后拉伸丙烯均聚物或丙烯与少量乙烯或另一种α-烯烃的共聚物的步骤 具有基本间同立构结构,或相同和少量具有基本上全同立构结构的聚丙烯的混合物。 模制和拉伸的制品可以在成型温度或更高的温度下加热,同时将负载施加到制品上。 此外,如果需要,模制和拉伸的制品可以用烃蒸气处理,同时将负载施加到制品上。 通过本发明的方法获得的模制品具有新的晶体结构。

    Polymeric insulating material and formed article making use of the material
    5.
    发明公开
    Polymeric insulating material and formed article making use of the material 无效
    Polymer-Isolierstoff und daraus hergestellterFormkörper

    公开(公告)号:EP0575111A2

    公开(公告)日:1993-12-22

    申请号:EP93304555.1

    申请日:1993-06-11

    IPC分类号: H01B3/44

    摘要: A polymeric insulating material having a high dielectric breakdown voltage comprises polypropylene which has been obtained in a yield of at least 300,000 g/g-Ti based on titanium in a catalyst upon polymerization, contains ash in an amount not greater than 40 ppm by weight when analyzed by completely burning the polypropylene in air, said ash containing titanium in an amount not greater than 1 ppm by weight based on the weight of the polypropylene, and also contains chlorine in an amount not greater than 2 ppm by weight and boiling n-heptane soluble matter in an amount not smaller than 1 wt.% but not greater than 10 wt.%. To further improve the dielectric breakdown voltage, an inorganic oxide or hydroxide free of particles of 10 µm and greater in diameter and having an average particle size not greater than 1 µm, an organopolysilane, a maleic-anhydride-grafted polypropylene, or a silane compound containing at least one organic polyether group can be added to the polypropylene.

    摘要翻译: 具有高介电击穿电压的聚合物绝缘材料包括在聚合时以催化剂中基于钛的至少300,000g / g-Ti的产率获得的聚丙烯,其含有不大于40重量ppm的灰分 通过在空气中完全燃烧聚丙烯进行分析,所述灰分含有基于聚丙烯重量不大于1重量ppm的钛,并且还含有不大于2重量ppm的氯和沸腾正庚烷 不少于1重量%但不大于10重量%的可溶性物质。 为了进一步提高介电击穿电压,无机氧化物或氢氧化物不含直径10μm以上且平均粒径不大于1μm的颗粒,有机聚硅烷,马来酸酐接枝的聚丙烯或 可以将含有至少一个有机聚醚基团的硅烷化合物加入到聚丙烯中。