| 摘要 |
PROBLEM TO BE SOLVED: To provide a basic-isolated structure excellent in breaking elongation of a rubber plate after use for a considerable time in spite of no compounding of a large amount of an antioxidant therein. SOLUTION: This basic-isolated structure 1 is obtained by using a rubber composition in which (a) a base rubber is compounded with (b) a low-molecular compound consisting essentially of a p-aralkylated diphenylamine and (c) one or more compounds selected from the group of a metallic salt of 2- mercaptobenzimidazole, a compound in which an alkyl group is added to a phenyl moiety of the 2-mercaptobenzimidazole and a metallic salt of the compound in which the alkyl group is added to the phenyl moiety of the 2- mercaptobenzimidazole as rubber plates 2 of the basic-isolated structure 1 having a laminate 4 in which the rubber plates 2 are laminated onto metallic plates 3. |
