MULTILAYERED DEOXIDIZER AND PRODUCTION PROCESS

摘要

The oxygen-absorbing multi-layered structure of the present invention comprises an oxygen-absorbing thermoplastic resin layer containing an oxygen-absorbing composition, and an oxygen-permeable thermoplastic resin layer formed on at least one surface of the oxygen-absorbing layer. The oxygen-permeable layer is a stretched film comprising (A) a matrix polyolefin resin, (B) incompatible thermoplastic resin particles dispersible in the matrix polyolefin resin (A), and (C) inorganic powder. The matrix polyolefin resin (A) has a melting point at least 50 DEG C lower than that of the incompatible thermoplastic resin particles (B). With this oxygen-absorbing layer, the oxygen-absorbing multi-layered structure is improved in oxygen permeability, and is inhibited from being deteriorated in oxygen-absorbing speed even when the film thickness thereof is increased to such an extent as to prevent the exposure of the oxygen-absorbing composition.