THERMOCHROMIC RYLENE DYES

摘要

The invention relates to rylene dyes of general formula (I), in which: R represents hydrogen or optionally substituted C1-C30 alkyl, aryl or heteroaryl; R' represents optionally substituted C2-C30 alkyl or C5-C8 cycloalkyl, or substituted methyl; n represents 0 or 1. The invention also relates to the production of said dyes, to the use thereof for colouring highly molecular organic and inorganic materials and to aminorylene-3,4-dicarboxylic acid imides IV as their intermediate products.