公开(公告)号：BR0113827A

公开(公告)日：2003-06-03

申请号：BR0113827

申请日：2001-09-13

Applicant: BASF AG

Inventor： SCHRODER GUNTER-RUDOLF ,  EBERT SOPHIA ,  ETZBACH KARL-HEINZ ,  TRESCH RAINER ,  SENS R DIGER

IPC: C09B35/033 ,  C09B35/215 ,  C09B44/06 ,  D06P1/08 ,  D21H21/28

Abstract: Disclosed are bisazo compounds of the formula Ia or Ib where R 1 is hydrogen or methyl, the X groups are independently -CH 2 CH 2 - or -CH 2 CH 2 CH 2 -, R 2 , R 3 , and R 4 are independently hydrogen or methyl, A is an anion and n corresponds to the valency of A. Also disclosed are the use of the bisazo compounds for dyeing, especially paper, and colorants containing said bisazo compounds.