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    • 18. 发明公开
    • PROPYLENE HOMOPOLYMER FOR CONDENSERS
    • 丙烯共聚物FÜRKONDENSATOREN
    • EP2383300A1
    • 2011-11-02
    • EP10735796.4
    • 2010-01-26
    • Mitsui Chemicals, Inc.Prime Polymer Co., Ltd.
    • TAMURA, SatoshiITAKURA, KeitaHASHIZUME, Satoshi
    • C08F110/06H01B17/56
    • H01B3/441C08F110/06C08F2500/12C08F2500/15C08F2500/20C08F2500/26
    • [Object] To provide a propylene homopolymer suitable for capacitor films having high withstand voltage and a stretched film formed by stretching the propylene homopolymer.
      [Solution] A propylene homopolymer of the present invention for capacitors satisfies the following requirements (i) to (v) and (ix): (i) the MFR is 1 to 10 g/10 minutes; (ii) the meso pentad fraction (mmmm) measured by 13 C-NMR is 0.940 to 0.995; (iii) the integrted amount of elution at 90°C by CFC using o-dichlorobenzene is 0.5% by weight or less; (iv) the melting point measured using DSC is 152°C or more; (v) the chlorine content is 2 ppm by weight or less; and (ix) in an elution temperature - elution volume curve measured by cross-fractionation chromatography (CFC) using o-dichlorobenzene, the maximum peak has a peak top temperature in the range of 105° C to 130° C and half width of 7.0° C or less.
    • 提供适合于具有高耐压性的电容器膜的丙烯均聚物和通过拉伸丙烯均聚物形成的拉伸膜。 [溶液]本发明的电容器用丙烯均聚物满足以下要求(i)〜(v)和(ix):(i)MFR为1〜10g / 10分钟; (ii)通过13 C-NMR测量的内消旋五单元组分数(mmmm)为0.940〜0.995; (iii)使用邻二氯苯在90℃下通过CFC洗脱的积分量为0.5重量%以下; (iv)使用DSC测定的熔点为152℃以上; (v)氯含量为2重量ppm以下; 和(ix)在使用邻二氯苯通过交叉分级色谱法(CFC)测量的洗脱温度 - 洗脱体积曲线中,最大峰的峰顶温度在105℃至130℃的范围内,半宽度为7.0 ℃以下。