Patent ID: 7288677
Filing Date: 2007-10-30
Classification: C07C,C08G,Y02P

Abstract:
1. An aromatic diimine wherein each imino hydrocarbylidene group has at least two carbon atoms, and wherein said diimine is in the form of two phenyl rings connected by an alkylene bridge and having one imino group on each ring, and in which each position ortho to an imino group bears a hydrocarbyl group, or wherein said diimine is N,N′-diisopropylidene-2,4-diethyl-6-methyl-1,3-benzenediamine, N,N′-diisopropylidene-4,6-diethyl-2-methyl-1,3-benzenediamine, or a mixture thereof; N,N′-di-sec-butylidene-2,4-diethyl-6-methyl-1,3-benzenediamine, N,N′-di-sec-butylidene-4,6-diethyl-2-methyl-1,3-benzenediamine, or a mixture thereof.