| 摘要 |
PURPOSE:A composition, obtained by incorporating crystalline polypropylene polymer before passing through a step of removing catalyst residues therefrom with a sorbitol based compound and an oxidation inhibitor, etc., and capable of giving molded articles having excellent transparency. CONSTITUTION:A composition obtained by incorporating (A) 100pts.wt. crystalline polypropylene polymer with <=300ppm.wt., preferably <=200ppm.wt. catalyst residue content obtained by polymerizing propylene in the presence of a Ziegler type complex catalyst supported on a halogen-containing magnesium compound as a catalyst carrier before passing through a step of substantially removing the catalyst residue with (B) 0.01-1pts.wt. sorbitol based compound expressed by the formula, (C) 0.001-0.5pts.wt. phenolic or phosphorous acid ester based oxidation inhibitor and (D) 0.01-1pts.wt. compound selected from (i) a metallic salt of a (hydroxy)fatty acid of a metal selected from Groups I and II in the periodic table, (ii) a salt of an alkylated lactic acid of a metal selected from Groups I and IIin the periodic table and (iii) hydrotalcite. |
