Provided is a stretched film stretched stretchable to a high draw ratio a method for manufacturing the stretched film, and, a polyamide resin composition used for manufacturing the stretched film. The stretched film containing 0.5 to 15 parts by weight of a compound represented by Formula (1) per 100 parts by weight of a polyamide resin, wherein the polyamide resin is composed of a structural unit derived from diamine and a structural unit derived from dicarboxylic acid; 50% by mole or more of the structural unit derived from diamine is derived from xylylenediamine, and 50% by mole or more of the structural unit derived from dicarboxylic acid is derived from a straight-chain aliphatic α,ω-dicarboxylic acid having 4 to 20 carbon atoms: wherein R1 represents an alkyl group having 1 to 10 carbon atoms, R2 represents an alkyl group having 2 to 12 carbon atoms, and n represents an integer of 1 to 3.
本文提供了一种可拉伸至高拉伸比的拉伸薄膜、制造该拉伸薄膜的方法以及用于制造该拉伸薄膜的聚酰胺
树脂组合物。拉伸薄膜含有 0.其中,聚酰胺
树脂由二胺衍生的结构单元和二
羧酸衍生的结构单元组成;50%(摩尔)或更多的二胺衍生的结构单元来自
二苯乙烯二胺,50%(摩尔)或更多的二
羧酸衍生的结构单元来自具有4至20个碳原子的直链脂肪族α,ω-二
羧酸:其中 R1 代表具有 1 至 10 个碳原子的烷基,R2 代表具有 2 至 12 个碳原子的烷基,n 代表 1 至 3 的整数。