| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene master batch which is excellent in flaw resistance, moldability, and the balance between physical properties (high rigidity and impact resistance) and also to provide a method of using the polypropylene master batch. SOLUTION: The polypropylene master batch comprises (a) a specific crystalline polypropylene resin: 1-49.9 wt.%; (b) talc and/or walastonite: 50-90 wt.%; (c) a specific polyethylene and/or a sliding component: 0.1-9 wt.%, and, if necessary, (d) a dispersion facilitating component, (e) an ethylene.α-olefin copolymer rubber, (f) a coloring component, and the method of using the master batch is disclosed.
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