Method for producing sterilized oxygen-absorbing multilayer body
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsFumihiro Ito, Satoshi Okada
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Abstract
A method for producing a sterilized oxygen-absorbing multilayer body is provided. The method may include: irradiating with radiation an oxygen-absorbing multilayer body comprising at least an oxygen-absorbing layer containing a transition metal catalyst and a thermoplastic resin (a) having a tetralin ring as a structural unit and a layer containing a thermoplastic resin (b); and heating the oxygen-absorbing multilayer body which has been irradiated with radiation in the sterilizing step at a temperature of the glass transition temperature of the thermoplastic resin (a) minus 20° C. or more and lower than the glass transition temperature of the thermoplastic resin (a) for 50 hours or more.
Claims13
A method for producing a sterilized oxygen-absorbing multilayer body, comprising:
- irradiating with radiation an oxygen-absorbing multilayer body comprising at least an oxygen-absorbing layer containing a transition metal catalyst and a thermoplastic resin (a) having a tetralin ring as a structural unit and a layer containing a thermoplastic resin (b);
- and
- heating the oxygen-absorbing multilayer body which has been irradiated with radiation at a temperature of the glass transition temperature of the thermoplastic resin (a) minus 20° C. or more and lower than the glass transition temperature of the thermoplastic resin (a) for 50 hours or more.
Dependencies are inferred from the claim text.