公开(公告)号：US3888850A

公开(公告)日：1975-06-10

申请号：US34946073

申请日：1973-04-09

Applicant: SANDOZ AG

Inventor： ENTSCHEL ROLAND ,  KAEPPELI VIKTOR

IPC: C09B23/14

CPC classification number: C09B23/145 ,  Y10S8/927

Abstract: Dyes of the formula

WHEREIN R is lower alkyl or substituted lower alkyl, R'' is hydrogen or methyl, R1 is alkyl of at least two carbon atoms, haloalkyl of at least two carbon atoms, aryl, substituted aryl, benzyl or substituted benzyl, R2 is methyl or ethyl, and A is an anion, are useful for dyeing and printing polymers and copolymers of acrylonitrile and polyamides and polyesters which have been modified by the introduction of acid groups.