| 摘要 |
PURPOSE:The titled composition providing a film having improved transparency in air-cooling blown film extrusion processing, obtained by blending a low crystalline polypropylene polymer with a mixture of a dibenzylidene sorbitol derivative and zeolite. CONSTITUTION:(A) 100pts.wt. low crystalline propylene polymer having 30- 90wt% part insoluble in boiling n-heptane, preferably 0.05-30g/10min melt flow rate, and 3-20mol.wt. distribution is blended with a mixture of (B) 0.01-2pts. wt., preferably 0.05-0.5pt.wt. dibenzylidene sorbitol derivative and (C) 0.01- 2pts.wt., preferably 0.05-0.5pt.wt. zeolite.
|
