Cycloalkyl phenylenediamines as deposit control agents for lubricants
申请人:Rowland Robert G.
公开号:US20090156441A1
公开(公告)日:2009-06-18
The invention is a C
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cycloalkyl substituted phenylenediamine that provides deposit-control lubricant additives for organic materials including lubricating oil, gasoline, and diesel fuels. The invention improves the oxidative stability of the lubricants and fuels by adding cycloalkyl substituted phenylenediamines having one or more additional N-substituents.
Preparation of tertiary aromatic amines by reductive alkylation of diaryl secondary amines with ketones
申请人:UNIROYAL, INC.
公开号:EP0014998A1
公开(公告)日:1980-09-03
Tertiary aromatic amines are prepared by the reductive alkylation of diaryl secondary amines with ketones in the presence of hydrogen and a heterogenous hydrogenation catalyst.