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| Number | Title | Issue Date |
| 7198651 | Method of effecting a reversible color change of dyed hair The present invention relates to a method to achieve a reversible change of the colour of hair dyed with an azo dye wherein the change of the colour can be effected by, for example, the salonist or the consumer in a simple manner. The colour of the hair thus ... | 04/03/2007 |
| 7083655 | Hair dye composition The present invention is directed to a hair dyeing composition comprising at least one azo dye of the following general formula (1): A—N=N—B (1) where A=monovalent, optionally substituted heterocyclic group binding via the carbon atom to... | 08/01/2006 |
| 6989439 | Color developing agent, azo dye, silver halide photographic light-sensitive material, and image-forming method A color-developing agent of the formula (1-1): wherein X represents a hydrogen atom or a substituent, and Z represents a carbamoyl, acyl, alkoxycarbonyl, or aryloxycarbonyl gro... | 01/24/2006 |
| 6979364 | Metal chelate compounds and inks A metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; and M is a metal or boron; and n is 0 to 4; com... | 12/27/2005 |
| 6916798 | Inhibitors of GSK-3 and uses thereof The present invention relates to compounds of formula I that are useful as GSK-3 inhibitors. The invention also relates to methods of using compounds of formula I or pharmaceutical compositions comprising compounds of formula I to inhibit GSK-3 activity. The inventi... | 07/12/2005 |
| 6878196 | Ink, ink jet recording method and azo compound An ink containing at least one dye represented by formula (1): wherein R1, R2 and R3 are each independently a hydrogen atom or a monovalent group; Z is a nitrogen atom, or a carbon atom... | 04/12/2005 |
| 6706864 | Water-insoluble violet benzimidazolone monoazo pigments Water-insoluble violet benzimidazolone monoazo pigments of the formula: wherein R1, R2 and R3 each represent hydrogen, chlorine, bromine, methyl, methoxy, ethoxy, nitro or a group of the ... | 03/16/2004 |
| 6582502 | Dye, ink for ink jet recording, and ink jet recording method A dye which is represented by any of the following general formula (1), (2), (3) or (4), an ink for inkjet recording which contains at least one of the dyes, and an ink jet recording method which uses the ink. The dye has heterocyclic group which may be s... | 06/24/2003 |
| 5691458 | Benzoisothiazole azo dyes There are described compounds which are represented by the formula ##STR1## The compounds are useful as dyes, and as intermediates and dye moieties in the preparation of compounds, which are particularly useful in imaging applications, such as, for e... | 11/25/1997 |
| 5616697 | Thiazolylazoaniline dyes for use in thermal dye sublimination transfer Dye-donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer containing a thiazolylazoaniline dye, said thiazolylazoaniline dye containing on the 4-position of the thiazolyl ring a substituent sel... | 04/01/1997 |
| 5616797 | N-(carbonyl, carbonimidoyl, carbonothioyl)sulfonamide charge control agents and toners and developers An electrophotographic toner having polymeric binder and a charge control agent selected from the group consisting of sulfonamides having the general structure: ##STR1## and metal salts thereof. T1 is independently selected from H, alkyl ... | 04/01/1997 |
| 5466790 | Azo dyes with an acetalized diazo component of the thiophene or thiazole series Azo dyes of the formula ##STR1## where L1 is hydrogen, C1 -C8 -alkyl or phenyl, L2 and L3 are each substituted or unsubstituted C1 -C8 -alkyl, or together a radical of the formul... | 11/14/1995 |
| 5436323 | Cationic 1,3,4-thiadiazole dyestuffs Cationic 1,3,4-thiadiazolyldiphenylamine dyestuffs and corresponding anhydro bases, the dyestuffs having the formula (I) ##STR1## their preparation and their use, and materials dyed with such dyestuffs.... | 07/25/1995 |
| 5420254 | Disperse dyes A compound of the formula I ##STR1## in which D is a diazo component, K is an aromatic group of formula a, b or c, ##STR2## Y is C2-3 alkylene and the remaining symbols are as defined in the specification. These compounds are useful f... | 05/30/1995 |
| 5298610 | Thiazoleazo dyes having a coupling component of the diphenylamine series Thiazoleazo dyes useful for dyeing or printing textile fibers have the formula ##STR1## where R1 is hydrogen, substituted or unsubstituted C1 -6 -alkyl, halogen, substituted or unsubstituted C1 -C6 | 03/29/1994 |
| 5270456 | Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine series Thiopheneazo dye I which are chiefly useful as disperse dyes for dyeing textile material, in particular polyesters, have the formula ##STR1## where the substituents are as defined in the description.... | 12/14/1993 |
| 5208325 | Cationic 1,3,4-thiadiazole dyestuffs Cationic 1,3,4-thiadiazole dyestuff of the formula ##STR1## in which R1 and R2, independently of one another, denote hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, a heterocycle, said heterocycle having a direct bond to the nit... | 05/04/1993 |
| 5077200 | Azo dye chromogenic substrates Chromogenic substrates for the detection of hydrolyzing enzymes, processes for the preparation of these chromogenic substrates and the use of the chromogenic substrates. The quantification of hydrolyzing enzymes for diagnostic purposes has to date been ca... | 12/31/1991 |
| 5064637 | Substituted sulfonamide derivatives which inhibit allergic reactions The present invention involves intradermal, percutaneous, parenteral, or enteral administration of a newly synthesized compound to detect, reduce, or eliminate the occurrence of allergic reactions to sulfonamides. The new compound is a substituted sulfona... | 11/12/1991 |
| 4965345 | Solvent azo dyes having carboxylic acid functions Solvent dyes of the formula ##STR1## where ##STR2## R1 and R2 are each, independently of the other, hydrogen, methyl, ethyl, methoxy or ethoxy, n is 0 or 1 and k, if n is 0, is the radical of a coupling component of the pyr... | 10/23/1990 |
| 4960874 | Isothiazolylazo dyes having aminophenyl and aminonaphthyl components Compounds of the general formula I ##STR1## where R is alkyl or unsubstituted or substituted aryl and K is a radical of the formula ##STR2## B is C1 -C4 -alkyl or substituted amino, R1 is hydrogen, methyl, m... | 10/02/1990 |
| 4877412 | Sulfo group-containing monoazo compounds having an unsubstituted or substituted 4-(benzothiazol-2'-yl)phenyl or 4-(6'-benzothiazol-2"yl)-benzothiazol-2'-yl)phenyldiazo component radical and a 6-hydroxypyrid-2-one coupling component radical Compounds of the formula ##STR1## in free acid or salt form and internal, external and acid addition salts thereof, wherein K is ##STR2## wherein R3 -R5, R20, R21 and X-Z are as defined in the sp... | 10/31/1989 |
| 4861344 | Reactive water-soluble azo dyes containing carboxy- or carbamoyl-pydridinium groups for dyeing textiles Water-soluble azo compounds having useful fiber-reactive dye properties conforming to the general formula ##STR1## in which: A is phenylene which may be substituted or unsubstituted, or is a radical of the formula ##STR2## in which W is a ... | 08/29/1989 |
| 4764599 | Disazo compounds containing an N,N-bis(2-amino-benzoyl)piperazine derivative as the diazo component Sulfo-free compounds of the formula ##STR1## where R is hydrogen or C1 -C4 -alkyl and K1 and K2 independently of one another are a radical of a coupling component, and the rings A and B may furthermore be m... | 08/16/1988 |
| 4681932 | Benzoisothiazole azo dyestuffs Azo dyestuffs of the formula ##STR1## wherein R1 denotes hydrogen, C1 -C4 -alkoxy or C1 -C4 -alkoxyethoxy and X denotes acyl, are distinguished by good levelling properties and good allround fastness ... | 07/21/1987 |
| 4678497 | Triazine-substituted herbicidal azobenzenesulfonamides Triazine-substituted azobenzenesulfonamides useful as preemergent and postemergent herbicides, selected from compounds of Formulae I or II ##STR1## or agriculturally suitable salts thereof, wherein R, R1, R2, R3 and A... | 07/07/1987 |
| 4668775 | -methine substituted thiophene monoazo dye A compound of the formula: ##STR1## wherein K is a radical of a coupling component, R is a radical of a methylene-active compound, X is hydrogen or unsubstituted or substituted alkyl, aryl, or hetaryl and Y is cyano, nitro, alkanoyl, aroyl, alky... | 05/26/1987 |
| 4656256 | Benzoazoresorcinol dyes containing a quaternized aminoalkylene oxycarbonyl group Compounds of the formula ##STR1## where Y is chlorine or bromine, Z is hydrogen, chlorine, bromine, a sulfonic ester group, nitro or unsubstituted or substituted sulfamyl, X is --O-- or ##STR2## R is alkylene which may or may not be interru... | 04/07/1987 |
| 4650861 | Azo dyes from 5-amino-4-nitropyrazole compounds and aniline couplers This invention relates to novel azo dyes containing a 4-nitropyrazole azo moiety which may be substituted, for example, with an alkyl group which itself may be substituted, and an aniline coupler which may be substituted. The dyes produce bright red shade... | 03/17/1987 |
| 4638052 | Azo-pigment containing hydroxy naphthoic acid amide and an iminooxoisoindolenine components An azo-pigment represented by the general formula: ##STR1## where R1 is a hydrogen atom, a C1 -C4 alkyl group, an unsubstituted phenyl group or a substituted phenyl group, R2 is a residue of a phenylenediam... | 01/20/1987 |
| 4628083 | 2-hydroxy-5-(arylazo)-benzene alkanoic acids The invention relates to new arylazo compounds of the general formula ##STR1## wherein R1 and R2 independently of each other represent hydrogen or C1-3 alkyl, R3 represents hydrogen, halogen, C1-3 alk... | 12/09/1986 |
| 4593088 | 2-amino-cinnamoylthiophene azo dyes having aniline, tetrahydroquinoline, or benzomorpholine couplers Disclosed are new disperse azo dyes prepared from 2-amino-cinnamoylthiophene compounds. These dyes give bright blue shades, for example, on polyester, cellulose acetate and other synthetic fibers and exhibit improvements in one or more of such properties ... | 06/03/1986 |
| 4542207 | Heterocyclic monoazo dyes for polyester fibers Monoazo dyes for dyeing polyester fibers represented by the formula: ##STR1## wherein D represents a substituted or unsubstituted thiazolyl, benzothiazolyl, thiadiazolyl or pyridyl group, X represents a hydrogen atom, a chlorine atom, a methyl group,... | 09/17/1985 |
| 4505857 | Azo compounds having a 5-substituted-4-chlorothiazolyl-2-diazo component radical Compounds of the formula ##STR1## in which K is the radical of a coupling component of the aniline, -naphthylamine, pyrazolone, aminopyrazole, indole, tetrahydroquinoline, thiazole, phenol, naphthol, pyridine or pyridone series. R is --CH... | 03/19/1985 |
| 4479899 | Red dyeing 2,6-dicyano-2'-sulfonamido-4'-amino-azo-benzenes Azo compounds of the formula ##STR1## wherein R1 is alkyl, alkenyl, aralkyl, aryl or hetaryl, R2 is hydrogen or alkyl, R3 is hydrogen, alkyl, halogen, OR1 etc. R4 is hydrogen, alkyl, aralkyl, aryl or cyclo... | 10/30/1984 |
| 4459229 | Heterocyclic azo dyes with couplers having sulfoaralkyl groups This invention relates to azo dyes prepared by diazotizing substituted or unsubstituted heterocyclic amines such as 2-aminothiophene and coupling with certain aniline, tetrahydroquinoline, or benzomorpholine compounds containing sulfoaralkyl groups. These... | 07/10/1984 |
| 4407749 | AZO Dyes from 2-sulfonated, sulfated or thiosulfated organothiothiadiazole and aniline, tetrahydroquinoline, or benzomorpholine couplers Disclosed are azo dyes having the general formula ##STR1## in which A is the residue of an aniline, tetrahydroquinoline or benzomorpholine disperse dye coupling component, R is a divalent organic radical such as straight or branched, lower or cyclic ... | 10/04/1983 |
| 4395368 | Azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyanoethyl-m-acylamidoanilines Disclosed are novel azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyanoethyl-m-acylamidoanilines. These dyes are useful for dyeing synthetic hydrophobic fibers and particularly polyester. The dyes have the general formula: ##STR1## ... | 07/26/1983 |
| 4309182 | Liquid crystal phase of an azo reactive dyestuff and its use for dyeing and printing natural and synthetic substrates Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## which is present in water in a concentration of 23-35% at room temperatur... | 01/05/1982 |
| 4309183 | Liquid crystal phase of an azo reactive dyestuff and its use for dyeing and printing natural and synthetic substrates Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## in water in a concentration of 12-35% at room temperature are outstanding... | 01/05/1982 |
