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| Number | Title | Issue Date |
| 7399843 | Colorant-containing curable composition, color filter using the composition, and method for manufacturing the same The present invention provides a colorant-containing curable composition comprising a colorant, wherein the colorant contains a compound represented by the following Formula (I). In Formula (I), R1 and R2 | 07/15/2008 |
| 7399842 | Azo compound The present invention provides an azo compound represented by the following Formula (I). In Formula (I), R1 and R2 respectively independently represent a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21... | 07/15/2008 |
| 7173114 | Lightfast colorant and lightfast ink composition including the same A lightfast colorant and a lightfast ink composition including the lightfast colorant utilize a lightfast colorant that is derived by covalently binding a cinnamate derivative and a conventional colorant. The lightfast colorant improves storage stability as well as ... | 02/06/2007 |
| 6730780 | Water-based ink An oil-soluble dye prepared by subjecting a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule to amidation: a water-based ink comprising the oil-soluble dye: and a process for prepari... | 05/04/2004 |
| 6613888 | Azo dyes, process for making the same, ink-jet printing ink, ink-jet recording method An azo dye represented by the following general formulae (10) and (12): ##STR1## (wherein the variables are as defined herein) and a process for making the azo dye is disclosed. The process comprises a step in which a diazonium salt is formed by the react... | 09/02/2003 |
| 6489452 | Azo dyes, process for making the same, ink-jet printing ink, ink-jet recording method An azo dye represented by the following general formula (1) and a process for making the azo dye is disclosed. The process comprises a step in which a diazonium salt is formed by the reaction between an aminopyrazole represented by the general formula (3)... | 12/03/2002 |
| 6455679 | Azo dye, ink-jet recording ink containing the same, and ink-jet recording method The present invention provides a novel heterylaniline azo dye as well as an ink-jet recording ink and an ink-jet recording method enabling the formation of an image having a good hue and high durability to light and ozone gas. The ink-jet recording ink co... | 09/24/2002 |
| 6235100 | Metallized azo yellow pigments In one embodiment, the present invention relates to a method of preparing a medium shade yellow pigment composition comprising making an azo pigment by coupling (i) two or more diazonium components made from two or more aromatic amines including 2-amino-5... | 05/22/2001 |
| 5686585 | Azo dyes for use in color filters and method for production of color filters An azo dye for use in color filters soluble in alkaline aqueous solutions and organic solvents and having in one molecule at least one sulfonamido group of which one hydrogen atom is substituted; and a method for producing a color filter having a pluralit... | 11/11/1997 |
| 5669967 | Pigment compositions Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein X is a hydrocarbyl, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide or sulfonic acid amide group; Y is a hydrocarbyl, ha... | 09/23/1997 |
| 5502172 | Process for the preparation of pyrazole azo dyestuffs New pyrazole azo dyestuffs of the formula (I) ##STR1## in which R1 denotes hydrogen or an acyl radical, R2 denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl or a heterocyclic radical which is optionally bonded via alkylene,... | 03/26/1996 |
| 5446136 | Pyrazole azo dyestuffs Pyrazole azo dyestuffs of the formula (I) ##STR1## in which R1 denotes hydrogen or an acyl radical, R2 denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl or a heterocyclic radical which is optionally bonded via alkylene, R | 08/29/1995 |
| 5391720 | Imidazole dyes formed by reaction of imidazoles with diazonium salts Disclosed is an imidazole azo dye of formula (I), which is useful for image formation and as a filter dye, which has a sharp absorption wave and which is fast to light, heat, air, moisture and chemicals. Also disclosed is a thermal transfer dye-donating m... | 02/21/1995 |
| 5151505 | Amine salts of azo pigments based on pyrazolone derivatives Compounds of formula ##STR1## wherein a and b are each independently of the other halogen, --CH3, --C2 H5, --OC2 H5 or the group of formula --NHCO--C1 -C4 alkyl, c and d are... | 09/29/1992 |
| 5047517 | Laked pyrazolone azo pigment, process for its preparation and its use The invention relates to a yellow monoazo pigment which is obtained by diazotization of 2-amino-4-chloro-5-methylbenzene-1-sulfonic acid, coupling of the diazonium compound with 1-(3'-sulfophenyl)-3-methyl-5-pyrazolone and subsequent laking of the co... | 09/10/1991 |
| 4992495 | Process for coloring high-molecular weight organic material using amine salts of azo pigments based on pyrazolone derivatives Compounds of formula ##STR1## wherein a and b are each independently of the other halogen, --CH3, --C2 H5, --OCH3, --OC2 H5 or the group of formula --NHCO--C1 -C4... | 02/12/1991 |
| 4918183 | Monoazo dyes, process for their preparation, and the use thereof The invention relates to monoazo dyes of the formula ##STR1## wherein K is the radical of a coupling component of the benzene, naphthalene or heterocyclic series, and R is hydrogen, halogen, carboxy, a C1 -C6 alkyl, C1 | 04/17/1990 |
| 4867789 | Flocculant purification of ink A method for purifying a dye solution is provided. The method comprises the steps of dissolving an impure dye in a solvent. A flocculant is then added to the dye solution in order to flocculate the imprity so that the impurity may then be removed from the... | 09/19/1989 |
| 4764600 | Isothiazolylazo dyes having aminophenyl and aminonaphthyl components An isothiazolylazo dye of the formula I ##STR1## wherein R is an alkyl group or unsubstituted aryl or substituted aryl group selected from the group consisting of ##STR2## and K is a radical of the formula ##STR3## where B is C1 | 08/16/1988 |
| 4749813 | 4-alkyl-2-trifluoromethylanilines 4-Alkyl-2-trifluoromethylanilines, in particular the 4-isopropyl derivative, are starting materials for preparing valuable azo dyestuffs. While the nonionic dyestuff types can preferably be used in transfer printing synthetic hydrophobic fibre materials, ... | 06/07/1988 |
| 4703113 | Water-soluble triazine black dyes free from cellulose reactive groups and suitable for use in inks A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R1 is --(Ca H2a O)m (Cb H2b O)n H, R2 is H or --(Ca H2a | 10/27/1987 |
| 4685934 | Mono- and di-sulfo group containing compound having a substituted pyrazolyl diazo component radical and their use Monoazo compounds of formula ##STR1## wherein R1 is a coupling component radical, R1 is C1-6 alkyl; C1-6 alkyl substituted by 1 or 2 substituents selected from chloro, cyano, hydroxy, C1-4 alkoxy, ... | 08/11/1987 |
| 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 |
| 4602084 | Monoazo dyes containing a 4-substituted-2-azo-1,1'-diphenylsulfone component Monoazo dyes of the formula ##STR1## in which K is the radical of a coupling component of the benzene or naphthalene series or of the heterocyclic series, and R is a ##STR2## --CO--R2 or --SO2 --O--R2 group in wh... | 07/22/1986 |
| 4541831 | Dustless, water-soluble, solid, dyestuff or optical brightener compositions and a process of production Described is a process for the production of substantially dustless water-soluble dye or optical brightener compositions, which process comprises mixing a dry, solid inorganic salt, heated to at least 50° C., with a mixture of at least one dye or optical... | 09/17/1985 |
| 4528258 | Process for forming image A process for forming an image which comprises heating a light-sensitive material comprising a support having thereon at least a light-sensitive silver halide, a binder and a dye-releasing redox compound which is reductive to the light-sensitive silver ha... | 07/09/1985 |
| 4424156 | Halo-substituted amino-and substituted-sulphonamido-containing azo dyestuffs An azo dyestuff suited for dyeing polyester, of the formula ##STR1## in which Hal is F, Cl, Br or I, R1 is a C1 -C10 -aliphatic hydrocarbyl or a C5 -C8 -cycloalkyl radical optionally substituted by OH... | 01/03/1984 |
| 4404136 | Chrome complexed azo or azomethine hexadentate dyes Chrome-complexed hexadentate dyes which include an ortho, ortho-dihydroxy azo or azomethine dye moiety, a colorless ligand which is a radical of an iminodiacetic acid and a linkage connecting the ligand to the dye moiety. In one embodiment the dyes includ... | 09/13/1983 |
| 4388115 | Aqueous ink composition An aqueous ink composition having a water-soluble dye and a wetting agent dissolved in water is disclosed. The composition uses at least one water-soluble dye of the formula (I): ##STR1## wherein R1 is a phenyl group, a substituted phenyl ... | 06/14/1983 |
| 4381261 | Structurally colored cross-linkable compounds, their preparation and their utilization in coating compositions Structurally colored cross-linkable compounds usable in coating compositions of the formula: ##STR1## wherein A is a single bond, an oxygen atom or an ##STR2## group, R1 being an alkyl group containing 1 to 6 carbon atoms, ³... | 04/26/1983 |
| 4364864 | 1:2 Cobalt and chromium complex unsymmetrical azo dyes Cobalt and chromium complex dyes which contain, bonded to a metal atom, one molecule of each of the azo compounds of the formula ##STR1## wherein R is methyl or ethyl and the phenyl ring a is unsubstituted or substituted by 1 to 2 chlorine atoms, nd ... | 12/21/1982 |
| 4322529 | Tertiary-alkylamine salts of azine dyestuffs New dyestuff salts of the formula ##STR1## wherein A denotes the radical of an azine dyestuff, R, R1 and R2 denote alkyl radicals with a total of 10-24 carbon atoms and n denotes the number 1-4. The dyestuff salts show excellent... | 03/30/1982 |
| 4322415 | Stable concentrated liquid preparations of metal complex dyes Stable concentrated liquid preparations of metal complex dyes are provided. These preparations contain (1) a metal complex dye, (2) a non-ionic compound having a hydrotropic action and at least one of components (3) or (4), component (3) being a reaction ... | 03/30/1982 |
| 4318849 | Novel metallized dyes, their manufacture and use The present invention relates to copper, nickel, chromium or cobalt complexes of azo or azomethine dyes which contain a group of the formula wherein Z is a bridge member of the formula ##STR1## wherein R1 is hydrogen or a low molecular alkyl gr... | 03/09/1982 |
| 4318848 | Process for the neutralization of basic reaction compositions Chemical reaction products, obtained in an alkaline medium and which require the addition of a dispersing agent, are neutralized by addition of a free surface-active acid to which, after its preparation, basic agents have not been added or have only been ... | 03/09/1982 |
| 4315865 | Process for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading action Improved process for the sulfatation of the hydroxy group of a ଲ-hydroxy-ethylsulfonyl group present in compounds selected from the dyestuff class which comprises carrying out the reaction in a machine operating with a kneading action and effect and... | 02/16/1982 |
| 4310693 | o-Aminophenol compounds o-Aminophenol derivatives are described represented by the formula (I) ##STR1## wherein R represents --NH2 or --NH--CO--R6 ; R1 and R2 which may be the same or different, each can represent an alkyl group or ... | 01/12/1982 |
| 4305718 | Dyeing and printing of cellulose-containing textile material A process for dyeing and printing cellulose-containing textile material, wherein the dye used is a compound of the general formula I ##STR1## where K is the radical of a coupling component of the pyridone, pyrazole or indole series, one of the radica... | 12/15/1981 |
| 4301068 | Azo dyes from a 2-aminothiophene having 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydrocyalkyl) carbamoyl groups on its ring This invention relates to azo dyes in which the diazotized 2-aminothiophene bears 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring. These dyes have excellent dyeing and fastness properties on polyamide fibers and also ... | 11/17/1981 |
| 4301070 | Azo dyes from a 5-aminopyrazole bearing 1 to 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl) carbamoyl groups on its ring This invention relates to azo dyes in which the diazotized amino component bears 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring. These dyes have excellent dyeing properties on polyamide fibers and also impart color t... | 11/17/1981 |
