发明名称 |
PROPYLENE HOMOPOLYMER FOR CAPACITORS |
摘要 |
[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 (mmm) measured by 13C-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. |
申请公布号 |
US2011301309(A1) |
申请公布日期 |
2011.12.08 |
申请号 |
US201013146378 |
申请日期 |
2010.01.26 |
申请人 |
TAMURA SATOSHI;ITAKURA KEITA;HASHIZUME SATOSHI |
发明人 |
TAMURA SATOSHI;ITAKURA KEITA;HASHIZUME SATOSHI |
分类号 |
C08F110/06 |
主分类号 |
C08F110/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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