Water-soluble quaternary ammonium dyestuffs,申请号US19740486180-传众专利搜索

Water-soluble quaternary ammonium dyestuffs

申请公布号：US3996282(A)

申请号：US19740486180

申请日期：1974.07.05

申请公布日期：1976.12.07

申请人：

STERLING DRUG INC.

发明人：JEFFERIES, PATRICK J.;CROUNSE, NATHAN N.

分类号：C09B44/02;C09B47/32;(IPC1-7):C07C87/30

主分类号：C09B44/02

摘要：Water-soluble cationic dyestuffs of the formulae <IMAGE> <IMAGE> WHEREIN R0 is hydrogen, lower-alkyl or hydroxy-lower-alkyl; R1 is lower-alkyl, lower-alkenyl or hydroxy-lower-alkyl; R2 is lower-alkyl, lower-alkenyl, hydroxy-lower-alkyl or -(lower-alkylene)-NR0Y or R1 and R2 together with the nitrogen atom, are pyrrolidino, piperidino or 4-lower-alkanoyl piperazino; Y is hydrogen or <IMAGE> wherein R is hydrogen, lower-alkyl, lower-alkenyl, phenyl or phenyl-lower-alkyl; A is a member selected from the group consisting of an aromatic azo dyestuff residue attached to the quaternary ammonium nitrogen atom through a lower-alkylene bridge.