申请人:Imperial Chemical Industries Limited
公开号:US04002604A1
公开(公告)日:1977-01-11
Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula I ##STR1## wherein A is the residue of 1,3 or 1,4-benzodioxan ring structure fused to the thiazole ring via the benzene ring, B is the residue of a para-coupling amine or an indole, R is an optionally substituted alkyl, alkenyl, cycloalkyl or aralkyl radical and X is an anion. The dyestuffs are useful for the colorization of synthetic polymeric materials particularly polyacrylonitrile and copolymers thereof.
没有羧基和磺酸基的偶氮染料,化学式为I,其中A是通过苯环与噻唑环融合的1,3或1,4-苯并二氧杂环残基,B是对位偶联胺或吲哚残基,R是可选替代的烷基,烯基,环烷基或芳基基团,X是阴离子。这些染料可用于合成聚合物材料的着色,特别是聚丙烯腈及其共聚物。