Methine colorant materials and the use thereof in electrophoretic migration imaging layers and processes
AssigneeEastman Kodak Company
InventorsMark D. Frishberg, James J. Krutak, Sr.
Life of this patent
Estimating the term…
Abstract
Disclosed are novel methine colorant materials having the structure ##STR1## Also disclosed is the use of such materials in electrophoretic migration imaging layers and processes.
Claims10
A compound having the formula ##STR32## wherein R.sup.1 is hydrogen, lower alkyl, lower alkoxy, nitro, halogen, cyano, phenyl, lower alkylsulfonamido or lower alkoxycarbonyl and A.sup.1 is a monovalent and A.sup.2 is a divalent residue, of a 1,2,3,4-tetrahydroquinoline, benzomorpholine or indoline compound attached to the .dbd.CH-- group by an aromatic ring carbon atom in the position para to the aromatic amine nitrogen atom.
Dependencies are inferred from the claim text.