Perylene amidine imide dyes, a process for preparing them, and t

Details Perylene amidine imide dyes, a process for preparing them, and t Perylene amidine imide dyes, a process for preparing them, and t

1994-08-08

1996-04-16

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

564426, G03G 504, C09B 562

Patent

active

055081371

ABSTRACT:
Certain perylene-3,4:9,10-tetracarboxylic monoanhydride monoimides are condensed with primary diamines or with imidazoles. The products obtained are amidine imides of the formula I ##STR1## where, for example, R.sub.1 is 1-hexylheptyl, R.sub.2 to R.sub.5 are each H and A is 1,2-phenylene. Compounds of the formula I are very light-fast dyes which show strong fluorescence in solution and whose fluorescence occurs at a longer wavelength than that of the bisimides (perylene dyes). The perylene amidine imides of the invention are suitable for example for use as colorants for the mass coloration of macromolecular organic material, as fluorescent dyes or as photoconductors.

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