Patent ID: 8288495
Filing Date: 2012-10-16
Classification: C08F,H01B

Abstract:
1. A propylene homopolymer for capacitors, satisfying the following requirements (i) to (v) and (ix): (i) the melt flow rate (MFR; measured at 230° C. under a load of 2.16 kg according to ASTM D1238) is 1 to 10 g/10 minutes; (ii) the meso pentad fraction (mmmm) measured by (iii) the integrated amount of elution at 90° C. by cross-fractionation chromatography (CFC) using o-dichlorobenzene is 0.5% by weight or less; (iv) the melting point measured using a differential scanning calorimeter (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.