序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 Ortho- and para-dihydroxyphenyl substituted monoazo dyes US35999864 1964-04-15 US3299041A 1967-01-17 MILTON GREEN; SIMON MYRON S
2 Triphendioxazine triazinyl dyes having phosphonic acid groups US752918 1976-12-21 US4092478A 1978-05-30 David William Plant; David John Williams
A dyestuff of the formula: ##STR1## wherein D is the residue of a colored compound of the 6,13-dichlorotriphendioxazine series, the triazine group being attached to a nitrogen atom in D, and wherein:Y is 1 or 2,R.sub.2 is Cl, Br, OH, lower alkoxy, NH.sub.2, a quaternary ammonium group or the residue of a primary or secondary amine,R.sub.1 is H or an alkyl or substituted alkyl group of up to 4 carbon atoms, andR is a hydrocarbon or substituted hydrocarbon radical.The invention provides a range of blue dyestuffs especially useful for reactively dyeing cellulose by heating in the presence of a carbodiimide.
3 Stabilized azo dye and method for its preparation US11411488 2006-04-26 US20070254234A1 2007-11-01 Scott Zavada
A diazo dye is stabilized through reaction with a metallo-alkoxide compound of the formula: M-(OR)n wherein n is an integer from 2 to 6 inclusive; R in each occurrence is a C1-C6 hydrocarbon; and M is a transition metal, main group metal or silicon. The stabilized dye exhibits an inhibited migration in graphic arts applications and as a coloring agent.
4 Azo dyestuffs containing thiosulfatoarylpyrazolone groups US54151466 1966-04-11 US3346550A 1967-10-10 GESELBRACHT GORDON A
5 Novel photographic processes, compositions and products US78872859 1959-01-26 US3218164A 1965-11-16 MILTON GREEN; RUBIN LEON E
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