C09B 27 - Azo dyes in which the azo group is formed in any way other than by diazotising and coupling

Patents for C09B 27 - Azo dyes in which the azo group is formed in any way other than by diazotising and coupling (210)
10/1978
10/03/1978	CA1039719A1 Process for preparing 1-aza-2-hydroxybenzanthrone
04/1978
04/11/1978	US4083843 Yellow dye for nylon, polyacrylonitrile, wool and silk
04/04/1978	US4082740 Quaternary basic azodyestuffs containing a propenyl amino radical
12/1977
12/13/1977	US4062836 Yellow
06/1977
06/07/1977	US4028323 With a substituted aminobenzene
06/07/1977	US4028321 Dyeing polyamides and polyesters
04/1977
04/12/1977	US4017479 Cationic indazole-azo-5-amino pyrazole dyestuffs
11/1976
11/09/1976	US3991042 Basic azo dyestuffs containing a benzthiazole and a tetrahydroquinoline nucleus
06/1976
06/01/1976	US3960866 Process for preparing 1-aza-2-hydroxybenzanthrone
04/1976
04/06/1976	US3948877 Polyacrylonitrile, acid modified polyesters or polyamides

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