Provided are: a rubber composition for a sealing material, which has excellent breakage characteristics and good sealing properties after deterioration over year; and a pneumatic tire (self-repairing tire) using the rubber composition. A rubber composition for a sealing material, which contains 0.5-3 parts by mass of a thiourea crosslinking agent, 1-10 parts by mass of a thiazole-based vulcanization accelerator and/or thiuram-based vulcanization accelerator, and 100-300 parts by mass of a liquid polymer per 100 parts by mass of a butyl rubber.
本发明提供一种破坏特性优异、具有经年劣化后的良好密封性的密封材料用橡胶组合物以及使用其的充气轮胎(自修复轮胎)。一种密封材料用橡胶组合物,相对于丁基系橡胶100质量份,含有硫脲交联剂0.5~3质量份、噻唑系硫化促进剂和/或秋兰姆系硫化促进剂1~10质量份、液态聚合物100~300质量份。
Rubber composition for sealing material, and pneumatic tire
密封材料用橡胶组合物、充气轮胎
2022-03-01
Patent
Electronic Resource
Chinese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
Rubber composition for sealing material, and pneumatic tire
European Patent Office | 2022
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