| 摘要 |
A solid dialkylated diarylamine useful as an antioxidant for rubbery materials and other systems subject to degradation and method of producing the same. The improved method of production consists of reacting (A) an olefin and (B) a diarylamine in the presence of a Friedel-Crafts catalyst under an inert atmosphere at ambient pressures and a temperature ranging from about 120 DEG -140 DEG C., said olefin being introduced below the surface of said diarylamine (B). This method affords a high yield and reduces undesirable by-products.
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