| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a moisture-permeable sheet, having good moldability and suppressed in occurrence of so-called die drool, burned granules, resin gel and the like. SOLUTION: The method for producing a moisture-permeable sheet comprises molding a polyolefin resin composition containing 100-300 pts.wt. inorganic filler per 100 pts.wt. polyolefin resin into a film at 180-220°C molding temperature by a T-die process and at least uniaxially orienting the film. The polyolefin resin composition has a melt flow rate (under a load of 21.18 N) of 6-25 g/10 min at 190°C and a melt flow ratio (the ratio of a melt flow rate under 98.07 N load to that under 9.81 N load) of≤85 at 190°C. COPYRIGHT: (C)2007,JPO&INPIT |
