| 摘要 |
PURPOSE:To obtain the subject film having excellent transparency and ultraviolet-shielding property, free from the deterioration of the properties with the elapse time and useful as various packaging materials, etc., by drawing a film of a composition produced by adding a specific amount of titanium oxide having specific particle size to a propylene resin. CONSTITUTION:The objective film is composed of a composition produced by compounding 100 pts.wt. of a propylene resin (preferably having a melt flow rate of 1-5g/10min and an isotactic index of >=90%) with 0.01-1.5 pts.wt. (preferably 0.3-1 pt.wt.) of titanium oxide containing particles having primary particle diameter of 0.005-0.2mum (preferably 0.005-0.055mum) accounting for >=90% (preferably >=95%) of the whole titanium oxide particles and is drawn in at least one direction. |
