Slightly water sol azo dyes - from substd thiphenes for hydrophobic mater-ials
Реферат: Title cpds. are of formula (I): (where R1 is H, or NO2; R2 is H, Cl, Br, NO2, alkyl, alkylcarbonyl, alkylcarbonyloxy or alkoxycarbonyl, or phenyl or benzoyl opt. substd. by Cl, Br, CN or NO2; R3 is Cl, Br, CN, NO2, alkoxycarbonyl or alkylcarbonyloxy, or benzoyloxy or phenoxycarbonyl opt. substd. by Cl, Br, CN or NO2; or R2 and R3 together form a gp. -CH=CH-CH=CH- opt. substd. by cl, Br, NO2 or CN; K is e.g. the residue of a coupling component of formula (II) or (III). (where R4 is e.g. pyridylethyl; R is e.g. H; R6 is e.g. H, Cl; R7 is e.g. H, (m)ethoxy; R8 is e.g. H, alkylamino; R9 is e.g. CN; R10 is e.g. CH3. They are prepd. by diazolising the amine corresponding to I and coupling with the component HK.
AZO Dyes from 2-sulfonated, sulfated or thiosulfated organothiothiadiazole and aniline, tetrahydroquinoline, or benzomorpholine couplers
Номер патента: US4407749A. Автор: Max A. Weaver,Clarence A. Coates, Jr.,John G. Fisher. Владелец: Eastman Kodak Co. Дата публикации: 1983-10-04.