Sauerstoffabsorbierendes Harz, desoxydierende Mehrschichtstruktur und Verpackungsbehälter die dieses verwendet

摘要

An oxygen absorbing resin is herein disclosed in which a deoxidizing composition is dispersed in a thermoplastic resin mixture comprising (A) a thermoplastic elastomer and/or an ethylene propylene copolymer and (B) a thermoplastic resin other than the above-mentioned (A), and having a flexural modulus of 600 MPa or less and an oxygen permeability constant of 130 cc.mm/m<2>.atm.day (23 DEG C, 50% RH) or more. Furthermore, a deoxidizing multi-layer structure is also disclosed which comprises a layer (I) comprising a thermoplastic resin layer having an oxygen permeability of 800 cc/m<2>.atm.day (23 DEG C, 50% RH) or more, a layer (II) comprising the oxygen absorbing resin, and a layer (III) having gas barrier properties. This oxygen absorbing resin has an oxygen absorbing performance equal to that of a conventional deoxidizing agent in a small bag. In addition, the deoxidizing multi-layer structure has a function of positively and efficiently absorbing oxygen.