CRYSTALLINE PROPYLENE POLYMER COMPOSITION

摘要

PURPOSE:To obtain the subject composition having high transparency and high rigidity and being free from the problem of bleeding and the formation of granu lar structures during molding by mixing PP with a specified branched alpha-olefin polymer and a specified organic phosphate salt. CONSTITUTION:The title composition is obtained by mixing a crystalline PP of a melt flow rate of 0.1 to 200g/10min with PP of a 3-methyl-1-butene content of 0.001 to 10wt.% and a melt flow rate of 0.1 to 200g/10min and an organic phosphate salt of the formula (wherein R<1> is a direct bond, sulfur or a 1 to 4C alkylidene; R<2> to R<5> are each H, a 1 to 8C alkyl; M is a monovalent to trivalent metal atom; and (n) is an integer of 1 to 3) in such a amounts that the 3-methyl-1-butene content is 0.0001 to 1wt.%, and the salt content is 0.005 to 0.5wt.%. In this way, the subject composition having especially high transpar ency and high rigidity and being free from the problem of bleeding during molding can be obtained.