申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:US11534508B2
公开(公告)日:2022-12-27
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.
提供了一种生产灭菌吸氧多层体的方法。该方法可包括
用辐射辐照吸氧多层体,吸氧多层体至少包括一个含过渡金属催化剂的吸氧层和一个以四萘环为结构单元的热塑性树脂(a),以及一个含热塑性树脂(b)的层;以及
在热塑性树脂(a)的玻璃化温度负 20 摄氏度或以上且低于热塑性树脂 (a)的玻璃化温度的温度下,加热在灭菌步骤中经过辐射照射的吸氧多层体 50 小时或以上。