| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container lid which can prevent the contents from undergoing deterioration in quality by gas loss or the like effectively and the contents from undergoing deterioaration due to remaining oxygen in a head space effectively. <P>SOLUTION: The container lid comprises a top plate 5 and a skirt part 7 suspended from the rim of the top plate and a liner material 3 provided on the inner surface of the top plate 5, wherein the liner material 3 has a seal part X formed of a thermoplastic resin having oxygen barrier property with an oxygen transmission coefficient less than 1.0×10<SP>-10</SP>cc cm/cm<SP>2</SP>s cmHg (25°C) and an oxygen absorbing part Y formed of a resin composition that an oxygen absorbing agent is dispersed in an oxygen permeable thermoplastic resin having an oxygen transmission coefficient of 1.0×10<SP>-10</SP>cc cm/cm<SP>2</SP>s cmHg (25°C) or more and at least ring shape rim of the liner material 3 is the seal part X and the oxygen absorbing part Y is formed at the center part surrounded by the ring shape rim of the liner material 3. <P>COPYRIGHT: (C)2007,JPO&INPIT |
