| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylenic resin composition having a high melt tension, free from discoloration, having a high mechanical strength or rigidity, and exhibiting excellent moldability. SOLUTION: This resin composition comprises (A) 97-20 pts.wt. of a polypropylenic resin having a PI, which is a value of 105 times the reciprocal of the value of a storage elastic modulus (unit; Pa) at a point of intersection Gc of a frequency (ω)-dependent curve G' (ω) of a storage elastic modulus and a frequency (ω)-dependent curve G" (ω) of a loss elastic modulus, both obtained by the dynamic viscoelastic measurement, of at least 4, an isotactic pantad fraction (IP) of at least 0.98, a melt flow rate of 0.01 g/10 min to 300 g/10 min and (B) 3-80 pts.wt. of a polypropylenic resin having a melt flow rate of less than 5 g/10 min and obtained by irradiating a polypropylenic resin satisfying the following inequality with an ionizing radiation. IP>=0.0428×log(MFR)+0.965.
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