81 |
Dyes and colorings-donor elements used in thermal dye transfer |
DE69407586 |
1994-09-13 |
DE69407586T2 |
1998-07-16 |
VANMAELE LUC |
|
82 |
Cationic Triazatrimethinfarbstoffe |
DE59304643 |
1993-04-14 |
DE59304643D1 |
1997-01-16 |
FUERSTENWERTH HAUKE DR; LANGE KARL-HEINRICH DR; RAUE RODERICH DR; BRACK ALFRED DR |
|
83 |
|
MX9302187 |
1993-04-15 |
MX9302187A |
1995-01-31 |
FURSTENWERTH HAUKE; LANGE KARL-HEINRICH; RAUE RODERICH; BRACK ALFRED |
|
84 |
|
MX9302192 |
1993-04-15 |
MX9302192A |
1994-03-31 |
RAUE RODERICH; LANGE KARL-HEINRICH; BRACK ALFRED |
|
85 |
Triazene and tri:aza-tri:methine dyestuff cpds. prodn. - by simultaneous diazotisation of diazo component and coupling with aryl or hetaryl amine in aq. medium under carbon di:oxide pressure |
DE4242428 |
1992-12-15 |
DE4242428A1 |
1993-10-28 |
RAUE RODERICH DR; LANGE KARL DR |
Prodn. of triazene and triazatrimethine dyestuffs of the formula D-N=N-Z (I) comprises reacting an aromatic or heterocyclic diazo component of formula D-NH2 (II) with a (het)arylamine of formula H-Z1 in aq. medium in the presence of a HNO2 precursor (IV) and CO2 at 5-100 bar at 0-125 deg.C. D = the radical of an aromatic or heterocyclic diazo component; Z = arylamino or a heterocyclylimino gp. of the formula -N=Het; Het = a heterocyclic diradical; Z2 = (het)arylamino. USE/ADVANTAGE - Diazotisation and coupling take place simultaneously if the CO2 pressure is over 5 bar. Diazotisation in mineral acid soln. and coupling in the presence of acid-binding agent leads to the formation of inorganic salts, which pollute the waste liquor and must be removed by costly methods, e.g. pressure permeation or reverse osmosis, to produce stable (I) solns. The new process avoids these drawbacks and is economical and environmentally friendly. Cationic (quaternised) (I) are useful for dyeing e.g. polyacrylonitrile. |
86 |
Cationic triazenfarbstoffe, their preparation and use |
DE3045912 |
1980-12-05 |
DE3045912A1 |
1982-07-08 |
FUERSTENWERTH HAUKE DR |
|
87 |
PROCEDIMIENTO PARA LA PREPARACION DE NUEVOS COMPUESTOS COLO-RANTES CATIONICOS |
ES501203 |
1981-04-09 |
ES8203408A1 |
1982-04-01 |
|
PROCEDIMIENTO DE OBTENCION DE COLORANTES CATIONICOS. CONSTISTE EN HACER REACCIONAR 1 MOL DE DIAMINA DE FORMULA GENERAL (1) CON 2 MOLES DE UN COMPUESTO ALDEHIDICO (II) EN PRESENCIA DE UN ACIDO; O BIEN LA REACCION DE CONDENSACION TIENE LUGAR ENTRE 1 MOL DE UNA TRIAMINA Y 3 MOLES DEL ALDEHIDO (III) EN PRESENCIA DE UN ACIDO. SE OBTIENE UN COMPUESTO DE FORMULA GENERAL (III). |
88 |
|
ES501203 |
1981-04-09 |
ES501203A0 |
1982-04-01 |
|
|
89 |
Improvements relating to quaternary ammonium salts of diazoamino compounds and theiruse as dyestuffs |
GB1894059 |
1959-06-03 |
GB917454A |
1963-02-06 |
|
Diazoamino compounds of tautomeric formulae wherein X is a divalent radical completing a 5- or 6-membered ring, R is an isocyclic aryl radical which may be substituted and n is 0 or 1 are prepared by condensing diazo compounds of arylamines R-NH2 with amines of formula HO-Z. They are used as intermediates in the preparation of dyes (see Group IV(c)). In an example p-nitroaniline is diazotised and the diazo compound reacted with 2-aminobenzthiazole to give 1,3-[benzthiazolyl-(21)-p-nitrophenyl]-triazene. The following are also prepared in examples:- 1,3-[61-methoxybenzthiazolyl-(21) -m-nitrophenyl]-triazene, 1,3-[61-acetylaminobenzthiazolyl - (21) - o - nitrophenyl] - triazene, 1,3-[31-methyl-21,31-dihydro benzthiazolylidene - (21) - p - methylsulphonylphenyl]-triazene, 1,3-[thiazolyl - (21) - p - nitrophenyl]-triazine and 1,3-[pyridyl-(21)-p-nitrophenyl]-triazene and 1,3-[pyridyl-(21)-p-nitrophenyl]-triazene. Many alternative reactants are specified.ALSO:The invention comprises water-soluble dyes of formula wherein X is a divalent radical which completes the nitrogen-containing ring into a 5- or 6-membered ring, R is an isocyclic aryl radical which may be substituted, n is 0 or 1, Z is the residue of a primary aliphatic alcohol with 1 to 5 carbon atom or of a benzyl alcohol which may be substituted in the benzene nucleus and Y\s8 is the anion derived from an alkylating agent or the anion introduced by interaction of the primarily obtained dye salt with a metal salt or the anionic group of a double salt derived from said anions and a metal salt, which anions and anionic groups are equivalent to the dye cation. The dyes give yellow to orange shades on polyacrylonitrile fibres. They ar prepared by treating 1 mol of a diazomino compound of tautomeric formulae (see Group IV(b)) with 2 mols of a reactive ester of an alcohol (Z-OH) and possibly adding a metal salt or by using as starting material a diazoamino compound already containing one Z substituent at the ring N atom or the N atom adjacent R and 1 mol of an ester of Z-OH. In examples: (1) 1,3-[benzthiazolyl- (21)-p-nitrophenyl]- triazine is treated with an excess of dimethyl sulphate and the product precipitated as the zinc chloride double salt (the same dye is also prepared by using 1 mol of dimethyl sulphate, separating the mono-N-methyl compound and treating this with an excess of dimethyl sulphate); (2) as in (1) using 1,3-[61-methoxy-benzthiazolyl-(21) -m-nitrophenyl]-triazene and diethyl sulphate or 1,3-[thiazolyl-(21)-p-nitrophenyl]-triazene and dimethyl sulphate; (3) 1,3-[61-acetylaminobenzthiazolyl- (21) -o-nitrophenyl]-triazene is treated with dimethyl sulphate; (4) 1,3-[31-methyl- 21, 31-dihydrobenzthiazolylidene-(21) -p-methylsulphonylphenyl]-triazene is treated with methyl or ethyl iodide and the dye salt is precipitated with sodium iodide; (5) as in (4) using 1,3-[pyridyl-(21)- p-nitrophenyl]-triazene and methyl iodide. Many alternative reactants are specified. |
90 |
Verfahren zur Herstellung von Farbsalzen |
CH6022658 |
1958-06-04 |
CH366612A |
1963-01-15 |
VOLTZ JACQUES DR; BOSSARD WERNER DR |
|
91 |
PROCEDIMIENTO PARA LA PREPARACIËN DE SALES TINTËREAS HIDROSOLUBLES DE DIAZOAMINOCOMPUESTOS |
ES249809 |
1959-06-03 |
ES249809A1 |
1960-01-16 |
|
Procedimiento para la preparación de sales tintóreas hidrosolubles de diazoaminocompuestos en los que el diazoaminocompuesto forma el catión caracterizado porque se transpone un diazoaminocompuesto exento de grupos que presentan disociación ácida que producen hidrosolubilidad de fórmula general I **(Ver fórmula)** en la que significan X un radical bivalente que completa el anillo que contiene hitrógeno en un anillo heterocíclico de cinco o seis eslabones R un radical arilo isocíclico eventualmente substituído y n 0 ó 1 con un compuesto de fórmula general II Y-CH2-Z (II) en la que significan Y el radical de un ácido fuerte y Z hidrógeno un grupo alifático bajo o un radical fenilo eventualmente substituído en una sal tintórea cuaternaria. |
92 |
Triazabutadienes as cleavable cross-linkers |
US15427988 |
2017-02-08 |
US10125105B2 |
2018-11-13 |
John C. Jewett; Flora W. Kimani; Lindsay Guzman; Brandon M. Cornali |
Triazabutadiene molecules as cleavable cross-linkers adapted to cross-link components with click chemistry, e.g., clickable triazabutadienes. For example, in some embodiments, the triazabutadienes feature alkyne handles attached to the imidazole portion or the aryl portion of the triazabutadienes, wherein the alkyne handles can link to azide handles (e.g., azide handles disposed on other components) via click chemistry. Also described are methods of producing said clickable triazabutadienes and methods of use of said clickable triazabutadienes. The present invention also features methods of cleaving said clickable triazabutadienes, e.g., for liberating the diazonium species for further chemical reactions. |
93 |
Azo direct dyes and method for dyeing hair using these dyes |
US14926151 |
2015-10-29 |
US09587116B2 |
2017-03-07 |
Heike Gertrud Abel; Armin Osan; Markus Speckbacher; Ingo Reinhold Weber |
A compound of formula (I) or (II) or (III): wherein R5, R6, R7, R8′, R8″ and R8″′ are as defined herein. This compound can be used in a composition for the dyeing of fibers. |
94 |
OPTICAL BRIGHTENERS AND COMPOSITIONS COMPRISING THE SAME |
US13602918 |
2012-09-04 |
US20120329699A1 |
2012-12-27 |
Robert L. Mahaffey; Eduardo Torres; Dominick J. Valenti; Patrick D. Moore; Leland G. Close, JR. |
Novel compounds based on diaminostilbene are provided. The compounds conform to the general structures The compounds are useful as optical brighteners. Compositions, such as laundry compositions, containing such compounds are also provided. |
95 |
DISULFO-TYPE FLUORESCENT WHITENING AGENTS |
US13496678 |
2010-09-17 |
US20120211188A1 |
2012-08-23 |
Bernhard Hunke; Andrei Tauber; Michael Kraemer; Guenter Klug; Theo Lansing; Marco Hafermann |
Concentrated aqueous fluorescent whitening agent preparations are disclosed for optically whitening paper, wherein the preparation contains a specific disulfo-type fluorescent whitening agent. |
96 |
Trichromatic dyeing process and dye mixtures used therein |
US10492869 |
2002-10-14 |
US07410594B2 |
2008-08-12 |
Markus Gisler; Roland Wald |
The present invention relates to a process for the trichromatic dyeing or printing of hydroxy-group-containing or nitrogen-containing organic substrates with dye mixtures and also to such dye mixtures and hydroxy-group-containing or nitrogen-containing organic substrates dyed or printed therewith. |
97 |
Dyeing or printing process with new and known cationic
4,5-dihydro-iH-1,2,3-triazolium compounds as dyestuffs and new cationic
4,5-dihydro-1H-1,2,3-triazolium compounds |
US670913 |
1996-06-26 |
US5749925A |
1998-05-12 |
Thomas Bocker; Horst Berneth; Henry Giera |
4,5-Dihydro-1H-1,2,3-triazolium compounds of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another denote C.sub.6 -C.sub.14 -aryl or a heterocyclic radical having up to 3 rings and up to 4 heteroatoms from the series consisting of O, S and N, R.sup.3 and R.sup.4 independently of one another denote hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.4 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.17 -aralkyl, C.sub.6 -C.sub.14 -aryl or nitrile or R.sup.3 and R.sup.4 together denote a 2- to 5-membered C bridge, which can optionally be interrupted by up to two oxygen and/or nitrogen atoms, and X.sup.- denotes an anion, wherein all the alkyl, alkenyl, cycloalkyl, aralkyl and aryl radicals and fused and heterocyclic radicals present can optionally be substituted by nonionic substituents, carboxyl groups, ammonium groups and/or pyridinium groups, are used as dyestuffs. New 4,5-dihydro-1H-1,2,3-triazolium compounds correspond to the formula (I), with the provisos that if R.sup.3 and R.sup.4 in each case denote hydrogen then in the case where R.sup.1 =4-methylphenyl R.sup.2 does not represent 4-nitrophenyl, 4-methoxyphenyl or phenyl and R.sup.1 and R.sup.2 do not both simultaneously represent 4-methylphenyl, 4-nitrophenyl, 4-methoxyphenyl or phenyl. |
98 |
Process for the preparation of dyestuffs |
US527971 |
1995-09-14 |
US5578711A |
1996-11-26 |
Roderich Raue; Alfred Brack; Karl-Heinrich Lange |
Dyestuffs of the formula ##STR1## in which D is the radical of an aromatic or heterocyclic diazo component andK is the radical of an aromatic or heterocyclic coupling component, or is the radical of an active methylene compound,are obtained in an ecologically advantageous manner by reacting an aromatic or heterocyclic diazo components of the formulaD--NH.sub.2and a coupling component of the formulaH--Kwith a nitrite, for example NaNO.sub.2, in the presence of CO.sub.2 at a pressure of 5-100 at. The process is suitable in particular for the preparation of concentrated dye-stuff solutions, because expensive operations, such as, for example, pressure permeation and reverse osmosis, can be omitted. |
99 |
2-Amino-imidazole derivatives |
US528336 |
1995-09-14 |
US5550252A |
1996-08-27 |
Luc Vanmaele |
The present invention provides triazene dyes according to formula (I) for use in thermal transfer printing:A--N.dbd.N--NR.sup.1 R.sup.2 (I)wherein A is the residue of a diazotisabie heteroaromatic amine, R.sup.1 and R.sup.2 independently represent hydrogen, an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aryl group, a substituted aryl group, a cycloalkyl group, a substituted cycloalkyl group, an aralkyl group, or R.sup.1 and R.sup.2 represent the atoms necessary to complete a ring system or a substituted ring system. |
100 |
Process for the preparation of dyestuffs |
US311831 |
1994-09-23 |
US5541299A |
1996-07-30 |
Roderich Raue; Alfred Brack; Karl-Heinrich Lange |
Dyestuffs of the formula ##STR1## in which D is the radical of an aromatic or heterocyclic diazo component andK is the radical of an aromatic or heterocyclic coupling component, or is the radical of an active methylene compound,are obtained in an ecologically advantageous manner by reacting an aromatic or heterocyclic diazo components of the formulaD--NH.sub.2and a coupling component of the formulaH--Kwith a nitrite, for example NaNO.sub.2, in the presence of CO.sub.2 at a pressure of 5-100 at. The process is suitable in particular for the preparation of concentrated dye-stuff solutions, because expensive operations, such as, for example, pressure permeation and reverse osmosis, can be omitted. |