Patent ID: 7927678

Claim:
A multilayer bottle comprising an outermost layer, an innermost layer and at least one barrier layer interposed between the outermost layer and the innermost layer, wherein the outermost layer and the innermost layer are each made mainly of a polyester (A) obtained by polymerizing a dicarboxylic acid component containing 80 mol % or more of terephthalic acid with a diol component containing 80 mol % or more of ethylene glycol; and the barrier layer comprises at least a polyamide (B) obtained by polycondensing a diamine component containing 70 mol % or more of m-xylylenediamine with a dicarboxylic acid component containing 70 mol % or more of an α,ω-linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms, and a thermoplastic resin (C) whose number-average molecular weight is from 10 to 65% of a number-average molecular weight of the polyamide (B), wherein the thermoplastic resin (C) is selected from the group consisting of a phenoxy resin, a polyglycolic acid, and a polyamide.