公开(公告)号：JPH0649371A

公开(公告)日：1994-02-22

申请号：JP10534593

申请日：1993-05-06

Applicant: BASF AG

Inventor： ERUBUIN HAAN ,  KURAUDEIA KUREE ,  UDO MAIAA ,  BERUNHARUTO ARUBERUTO ,  BUARUTAA DENTSUINGAA

IPC: C09B11/28 ,  C08K5/18 ,  C09B11/24 ,  C09D11/00 ,  D06P3/76 ,  G03G9/09

Abstract: Rhodamine derivatives of the formula where R , R , R and R are each hydrogen or optionally substituted C1-C4-alkyl or R and R together or R and R together are in each case 1,3-propylene, which may be substituted, R , R , R and R are each hydrogen or methyl, R is hydrogen, optionally substituted C1-C4-alkyl or a radical of the formula (C2H4O-)nH, where n is 2 or 3, and An is the equivalent of an anion which is derived from a chain-growth or step-growth polymer which in either case contains acid groups, novel cyclic rhodamine dyes, and the use of the novel rhodamine derivatives and cyclic rhodamine dyes for dyeing polyacrylonitrile fibres, for incorporation into polymers or for preparing inks.