Patent ID: 7427436

Claim:
A multi-layer structure comprising an oxygen-absorbing layer which comprises an oxygen absorptive resin composition which comprises a styrenic resin, a thermoplastic resin having ethylene structures in the molecular structure thereof and a transition metal catalyst, wherein the thermoplastic resin is a polyethylene resin, the content of which in the resin composition ranges from 90 to 99% by mass, the oxidation of the thermoplastic resin proceeds while the styrenic resin serves as a trigger and as a result, the composition absorbs oxygen, wherein the styrenic resin comprises two kinds of styrenic resins (A) and (B) which are different in the styrene content from one another, the styrene content of the resin (A) is greater than that of the resin (B) and is not less than 60% by mass, and the styrene content of the resin B is not more than 50%, wherein the structure comprises the following 9 layers in the order from the outermost layer: an outermost layer/an adhesive layer/a resin layer having gas-baffler properties/an oxygen-absorbing layer/an oxidation by-product scavenger-containing layer/an adhesive layer/a resin layer having gas-barrier properties/an adhesive layer/an innermost layer, and wherein the oxidation by-product scavenger is ZSM-5 type zeolite whose silica/alumina ratio is not less than 80.