Modified carbon material, used as filler, UV stabilizer or conductive pigment in e.g. rubber, plastics, ink, toner, coating, paper, bitumen, concrete or tire mix, or as reducing agent in metallurgy, is modified with diarylazo compound

摘要

Modified carbonaceous material (A) with organic groups is obtained by reacting carbonaceous material (B) with organic diarylazo compounds (I), in which one or both azo groups may have acceptor or donor substituents. Modified carbonaceous material (A) with organic groups is obtained by reacting carbonaceous material (B) with organic diarylazo compounds of formula (I). R1-N=N-R2 (I) R1, R2 = aryl, optionally with acceptor or donor substituents. Independent claims are also included for the following: (1) preparation of (A) by reacting (B) with (I); (2) dispersion containing (A).