| 摘要 |
PURPOSE:To make it possible to improve the aging resistance of a ferrite/rubber composition without staining an object in contact with it, by adding a specified amount of 4,4'-thiobis(6-t-butyl-3-methylphenol) to a ferrite/rubber mixture. CONSTITUTION:60-95wt.% ferrite and 0.05-1.5wt.% 4,4'-thiobis(6-t-butyl-3- methylphenol) are added to a rubber base. Said rubber base and said ferrite may be those usually used. |
