公开(公告)号：DE2409754A1

公开(公告)日：1975-10-16

申请号：DE2409754

申请日：1974-03-01

Applicant: BASF AG

Inventor： DEHNET JOHANNES DIPL CHEM DR ,  LAMM GUNTHER DIPL CHEM DR

IPC: C08K5/34 ,  C08K5/36 ,  C08K5/00

Abstract: Thermoplastics are coloured with dyes of formula (I): where A' is a gp. A or a gp. (II) D is the residue of a diazo component, R is H, alkyl or (methyl)phenyl, X is H, carbamoyl or CN, Z is a (cyclo) alkylene, aralkylene or arylene gp., where the alkylene gp. may be interrupted by O, S or N-substd. imino, and A is H, (substd.) (cyclo)alkyl, aralkyl, phenyl or acyl or may together form a 5-7 membered heterocyclic ring with N. (I) are used for dyeing thermoplastics in bulk at is not >300 degrees C, e.g polystyrene, hard PVC, polyethylene, polyamides, polyesters, polycarbonates, styrene-butadiene copolymers and ABS copolymers. (I) are stable to heat. They have up to 3.5 x the colour strength of dyes normally used for dyeing in bulk.