| abstract |
A method for producing a sterilized oxygen-absorbable multilayer body, comprising: a sterilization step of irradiating an oxygen-absorbable multilayer body with radioactive ray, wherein the oxygen-absorbable multilayer body comprises at least an oxygen-absorbable layer containing a thermoplastic resin (a) containing a tetralin ring as a constituent unit and a transition metal catalyst and a layer containing a thermoplastic resin (b); and a heating step of heating the oxygen-absorbable multilayer body, which has been irradiated with radioactive ray in the sterilization step, at a temperature for 50 hours or longer, wherein the temperature is equal to or higher than a temperature lower by 20ºC than the glass transition temperature of the thermoplastic resin (a) and is lower than the glass transition temperature of the thermoplastic resin (a). |