abstract |
PROBLEM TO BE SOLVED: To provide a multilayer container produced by subjecting a preform obtained by co-injection molding a polyester resin and an EVOH resin to stretch blow molding without having an adhesive resin layer. To provide a multilayer container excellent in both impact delamination resistance and transparency, gas barrier properties, and melt stability. SOLUTION: The resin composition has an ethylene content of 25 to 4; In an ethylene-vinyl alcohol copolymer (b1) matrix having 0 mol% and a saponification degree of 99% or more, an ethylene-vinyl alcohol copolymer having an ethylene content of 35 to 48 mol% and a saponification degree of 92 to 99% It has a dispersion form in which the particles of (b2) are dispersed, and has a differential scanning calorimeter (DSC) Having at least two or more crystal melting peaks at And b2 have a difference in ethylene content of 8 to 23 mol%, a difference in saponification degree of 1 to 8%, and a blending weight ratio of 60/40 to 90/10. A co-injection stretch blow molded container. |