| 摘要 |
<p>1. 4,4'-Methylene-bis-(m-chloro-2,6-dialkyl anilines) of formula see diagramm : EP0220641,P13,F4 wherein R1 is alkyl, the same or different, straight-chained or branched, having 1 to 4 carbon atoms, and R2 is chlorine or alkyl, the same or different, straight-chained or branched, having 1 to 4 carbon atoms.</p> |
