Method of manufacturing alkylated diphenylamine compositions...

Details Method of manufacturing alkylated diphenylamine compositions... Method of manufacturing alkylated diphenylamine compositions...

C - Chemistry, Metallurgy

07

C

C07C 209/68 (2006.01) C07C 211/55 (2006.01) C09K 15/18 (2006.01) C10M 133/12 (2006.01)

Patent

CA 2370384

A method of manufacturing an alkylated diphenylamine composition to generate an alkylated diphenylamine composition with relatively low amounts of unsubstituted diphenylamine, based on the total weight of substituted and unsubstituted diphenylamine in the alkylated diphenylamine composition. The method includes reaction of unsubstituted diphenylamine with at least two olefins. In at least some instances, the alkylated diphenylamine composition may be used, for example, as an antioxidant in a lubricating fluid or polymer composition.

Cette invention concerne un procédé de fabrication d'une composition de diphénylamine alkylée renfermant des doses relativement faibles de diphénylamine non substitué, compte tenu du poids total de diphénylamine substituée et non substituée dans la composition de diphénylamine alkylée. Ce procédé consiste à faire réagir une diphénylamine non substituée avec au moins deux oléfines. Dans certains cas au moins, la composition de diphénylamine alkylée peut être utilisée, par exemple, comme antioxydant dans une composition de liquide lubrifiant ou une composition polymère.

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