| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber molding whose surface is not viscous, which has suitable hardness, and whose eluate satisfies standards, by molding and vulcanizing a halogenated butyl rubber without coexistence of zinc compounds and using a kind of 2-substitute-4,6-dithiole-s-triazine derivative or an organic peroxide. SOLUTION: This rubber molding suitable for using in touch with medicinal liquid is formed by forming and vulcanizing a halogenated butyl rubber blended with a super high molecular weight polyethylene micropowder without coexistence of zinc compounds and using a kind of 2-substitute-4,6-dithiole-s-triazine derivative or an organic peroxide. In this case, the halogenated butyl rubber is vulcanized by organic peroxide or by utilizing the halogen atom in the halogenated butyl rubber using the triazine derivative. By using the super high molecular weight polyethylene micropowder, the problem that the surface of the vulcanized substance becomes viscous by insufficient vulcanization of the halogenated butyl rubber is eliminated. |
