| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a joint plug for vial that is used for an infusion vessel, etc., and can simplify the manufacture of the infusion container by using a member produced by integrally injection molding a thermoplastic elastomer and a polyolefin-based resin. <P>SOLUTION: This joint plug 4 for vial is manufactured by integrally molding the polyolefin-based resin 6 on the outer periphery of the elastomer 5 in a ring-like or cylindrical form. The elastomer 5 has a degree of hardness of 30-55 and the degree of hardness of the polyolefin-based resin 6 is set higher than that of the elastomer 5. When this joint plug 4 is constituted in this way, a leakage of a liquid medicine can be prevented, because a centripetal caulking effect is obtained in the elastomer 5 and the hole left when a bottle needle is pulled out can be sealed surely. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
