| abstract |
(57) Abstract: CONSTITUTION melt flow index of 30 or more, weight average molecular weight M w of the number ratio M w / M n average molecular weight M n of 8 or more, a melting point of 165 ° C. or higher, the crystallization temperature of 117 ° C. The above and a heat of fusion of crystallization of 107 mJ / mg or more, high flowability, high melting point, highly crystalline polypropylene. [Effects] Molding is easy, and it does not contain a commonly used crystal nucleating agent, has excellent mechanical properties such as rigidity and tensile strength, transparency, and surface characteristics, and can increase the molding speed. |