| 摘要 |
PROBLEM TO BE SOLVED: To obtain a crystalline propylene/α-olefin copolymer having excellent low-temperature heat sealability, blocking properties, rigidity and transparency. SOLUTION: This crystalline propylene/α-olefin copolymer has (a) a specific melt flow rate, (b) a specific melting point, (c) a specific Q value and (d) a specific relation between a long cycle obtained by small-angle X-ray scattering and a melting point.
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