Oxygen-absorbing multi-layer plastic container featuring excellent preservation property

摘要

The present invention relates to an oxygen-absorbing multi-layer plastic container obtained by laminating a thermoplastic resin layer without blended with an oxygen-absorbing agent on both sides of a thermoplastic resin layer containing an oxygen-absorbing agent, wherein a resin matrix of the thermoplastic resin layer containing the oxygen-absorbing agent comprises a blend of a plurality of thermoplastic resins or elastomers which are substantially incompatible, and said incompatible thermoplastic resins or elastomers are present in said resin matrix forming a non-uniformly distributed structure. The oxygen-absorbing multi-layer plastic container suppresses a drop in the flavor-retaining property caused by the elution of the oxygen-absorbing agent or the oxidized product thereof, and maintains the content-preserving property and flavor-retaining property for extended periods of time. The invention provides a resin composition containing the oxygen-absorbing agent and packaging containers having increased oxygen-absorbing rate, permitting no ruggedness to occur after preserved for extended periods of time or after the heat-sterilization, and exhibiting excellent appearance.