NAPHTHOSTYRIL METAL COMPLEXES, THEIR PREPARATION PROCESS AND ORGANIC HIGH MOLECULAR WEIGHT MATERIALS PIGMENTED WITH THESE COMPLEXES

摘要

1:2 Nickel or 1:2 copper complexes of a naphthostyril of the formula IMAGE or of tautomers thereof, in which A, X and Y are as defined in claim 1, are suitable for pigmenting high molecular weight organic material.