| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an easy-to-open plastic container with excellent sealing performance which can maintain the sealing performance even if it is subjected to a change in temperature and an impact caused by a fall etc., and can also be manufactured by a simple manufacturing process. <P>SOLUTION: In this plastic container capable of being sealed by being attached with a screw-in cap at a mouth, a screw is formed at the outer periphery of the mouth, and at least a part between the upper end of the screw and the top surface of the mouth has an undercut portion having an outside diameter enlarged toward the top surface. The plastic container is a PET bottle, and the mouth contains polyarylate. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
