| abstract |
PURPOSE: To obtain a propylene polymer composition improved in mildewproofing properties, hue and mechanical properties by mixing a specified crystalline propylene polymer with a zeolite, a hindered phenolic antioxidant and a Group II metal salt of a higher fatty acid and/or a Group II metal salt of an alkyllactic acid. n CONSTITUTION: 100 pts.wt. crystalline propylene polymer (A) of a melt flow rate of 0.1-100g/10min and a content of chlorine as polymerization catalyst residues ≤50ppm is mixed with 0.1-10 pts.wt. zeolite (B) retaining at least one kind of a metal selected from among silver, copper, zinc and tin in an ionized form, 0.01-2 pts.wt. hindered phenolic antioxidant (C) of formula I or II (wherein R a is formula III; R b is formula IV; R c is a 1-8C alkyl; and X is a 1-8C alkylene which may be interrupted by an ether or ester linkage) and 0.005-5 pts.wt. Group II metal salt of a higher fatty acid and/or a Group II metal salt of an alkyllactic acid (D) (e.g. calcium stearyllactate). n COPYRIGHT: (C)1990,JPO&Japio |