| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cap showing stable slidability immediately after molding, and always showing stable openability and closability. <P>SOLUTION: The cap comprises a top surface 3 and a skirt 5, and a coating area 20 of a lubricant is formed in at least the portion, in contact with the vessel opening, of the inner surface of the top surface 3. <P>COPYRIGHT: (C)2010,JPO&INPIT |
