| 摘要 |
PURPOSE:To obtain a stretched polyamide resin film excellent in oxygen gas barrier properties and prevention of pinhole formation due to flexure stretching a polyamide resin composition obtained by melt-mixing an aliphatic polyamide with a specified modified polyolefin composition under specified conditions. CONSTITUTION:The film is obtained by stretching a polyamide resin composition obtained by melt-mixing 99.7-90.0wt.% aliphatic polyamide (e.g. poly-epsilon-capramide) with 0.3-10wt.% modified polyolefin composition comprising 100-5wt.% modified polyolefin prepared by grafting an unsaturated carboxylic acid (e.g. maleic anhydride) onto a polyolefin (e.g. ethylene/propylene copolymer) and 0-95wt.% polyolefin (e.g. ethylene/vinyl acetate copolymer) at least monoaxially at a stretch ratio of 2-8. |
