Injection molded body having excellent barrier property

Abstract

A method of providing an oxygen barrier for a product includes placing a product in an injection molded article which includes 10 to 60% by mass of a polyamide resin (A) and 40 to 90% by mass of a mixed polyolefin (E), wherein the polyamide resin (A) includes a diamine unit 70 mol % or more of which is one or more m-xylylenediamine units and a dicarboxylic acid unit 70 mol % or more of which is one or more dicarboxylic acid units including a C4 to C20 α,ω-linear aliphatic dicarboxylic acid and isophthalic acid at a molar ratio of from 30:70 to 100:0, the mixed polyolefin (E) includes 40 to 100% by mass of a polyolefin (C) and 0 to 60% by mass of a modified polyolefin (B), and at least a portion of the polyamide resin (A) is dispersed in a layered state.

Dependencies are inferred from the claim text.