Diimines and secondary diamines
AssigneeAlbemarle Corporation
InventorsJohn Y. Lee, Paul L. Wiggins, Judit Orgad, Mahmood Sabahi, Vernon O. Brandt
Life of this patent
Estimating the term…
Loading patent…
AssigneeAlbemarle Corporation
InventorsJohn Y. Lee, Paul L. Wiggins, Judit Orgad, Mahmood Sabahi, Vernon O. Brandt
Estimating the term…
This invention provides aromatic diimines which have imino hydrocarbylidene groups with at least two carbon atoms, and aromatic secondary diamines which have amino hydrocarbyl groups with at least two carbon atoms. Both the aromatic diimines and the aromatic secondary diamines either are in the form of one phenyl ring, or are in the form of two phenyl rings connected by an alkylene bridge; each position ortho to an imino group or an amino group bears a hydrocarbyl group. When in the form of one phenyl ring, there are two imino groups on the ring or two amino groups on the ring; the imino groups or amino groups are meta or para relative to each other. When in the form of two phenyl rings connected by an alkylene bridge, there is either one imino group or one amino group on each phenyl ring. Also provided are processes for forming diimines and secondary diamines.
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;
Dependencies are inferred from the claim text.