| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polyolefin composition having such excellent characteristics as excellent additive-dispersibility in melt-kneading a polyolefin powder and a powdery additive and few fisheye-forming of a processed film. SOLUTION: The method for producing a polyolefin composition giving processed films decreased in fisheyes in film processing comprises melt-kneading a polyolefin powder and at least one powdery additive, which polyolefin powder contains≤3 wt.% coarse particle having≥2 mm diameter. As the polyolefin powder, propylene homopolymer, propylene-ethylene copolymer, propylene-ethylene-butene copolymer and the like are listed. The powdery additive is an inorganic additive such as silicon dioxide, calcium carbide or magnesium silicate, usable as an antiblocking agent. COPYRIGHT: (C)2007,JPO&INPIT
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