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| Number | Title | Issue Date |
| 7504488 | Dye, dye production method and ink containing dye The present invention is a dye represented by the following general formula (1), a method of producing the dye and an ink containing the dye, wherein R1 represents a hydrogen atom, an alk... | 03/17/2009 |
| 7270702 | Yellow dye compound and the ink composition thereof The present invention discloses a yellow dye compound having a structure of the following formula (I): wherein M is H, Li, NH4 or Na. The dye compound of the present invention is particularly applied t... | 09/18/2007 |
| 7244299 | Ink jet recording ink, ink jet recording method, ink cartridge, and ink jet recording apparatus An ink jet recording ink comprising at least a copper phthalocyanine dye represented by the following general formula (1) and a compound represented by the following general formula (2): ... | 07/17/2007 |
| 7208033 | Ink, ink jet recording method, ink cartridge, and ink jet recording apparatus An ink comprising yellow colorants and a colorant having a phthalocyanine skeleton, in which the yellow colorants are at least a colorant represented by the following general formula I and C.I. Direct Yellow 132 ... | 04/24/2007 |
| 7193068 | Pyridone azo compound, tautomer thereof, and colorant-containing curable composition, color filter and manufacturing method thereof The invention provides a pyridone azo compound represented by the following Formula (I) R1, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 21 c... | 03/20/2007 |
| 7097699 | Composition for printing recording materials A composition for printing recording materials comprising a) at least one temporarily water-soluble dye with one SO2CH2COOM group being present in the molecule; b) water or a medium including a mixture of water and an organic solvent, an anhydr... | 08/29/2006 |
| 7091261 | Yellow hue compound and aqueous ink for ink-jet recording system using the same Aqueous ink for ink-jet recording which contains at least a water-insoluble coloring matter, water and a resin as main components and which takes the form of an emulsion, in which the coloring matter is at least one yellow hue coloring matter selected from the group... | 08/15/2006 |
| 6953846 | Pyridone dyes, a process for their preparation and their use in the production of colored plastics or polymeric color particles The present invention relates to pyrifone azo dyes of formula (1), wherein A is the radical of a diazo component of the benzene, naphthalene, diphenyl, azobenzene, thiophene, benzothiazole, benzoisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, anthraquin... | 10/11/2005 |
| 6723835 | Azopyridone compounds, compositions and use Compositions containing a solvent and at least one compound of Formula (1) in which: R1 represents H, an optionally substituted C1-8carbyl derived group, or a group of Formula A: ... | 04/20/2004 |
| 6590082 | Azo pyridone colorants Disclosed are compounds of the formula ##STR1## The compounds are useful as colorants, particularly in applications such as phase change inks.... | 07/08/2003 |
| 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 |
| 6488752 | Monoazo dyestuffs, a composition and an ink for ink jet printing comprising them Compounds of Formula (1) and salts and tautomers thereof, inks containing a compound of Formula (1), an ink jet printing process using the inks, substrates printed with the inks and ink jet printer cartridges containing the inks: ##STR1## wherein: R | 12/03/2002 |
| 6406526 | Pyridonazo dyes and inks containing them A dye of Formula (1) or tautomer thereof: ##STR1## wherein: A is di-, tri-, tetra-, or penta-substituted phenyl; R1 is methyl; R2 is H, CN, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aryl, substi... | 06/18/2002 |
| 6303763 | Pyridonazo dyes and inks containing them Dyes of the Formula (1) and tautomers thereof: ##STR1## wherein: A is optionally substituted phenyl; R1 is H, optionally substituted alkyl, optionally substituted alkenyl or optionally substituted alkynyl; R2 is H, CN, optionally substitu... | 10/16/2001 |
| 6184363 | Inhibitors of ଲ-lactamases and uses therefor The invention provides novel non-ଲ-lactam inhibitors of ଲ-lactamases. In particular, the invention provides such inhibitors which are boronic acids of formula (1) which is set forth in the specification. These compounds may be used with ³... | 02/06/2001 |
| 6140478 | Basic azo compounds, their production and use Basic azo compounds of formula I are suitable for coloring or printing especially of paper and leather.... | 10/31/2000 |
| 6051360 | Dyestuffs and resin compositions Dyestuffs represented by the below-described formula (1), that is, dyestuffs formed of a chromophoric nucleus and a bisphenol introduced therein have excellent solubility in solvents and binder resins, and can provide color filters having excellent transm... | 04/18/2000 |
| 6042621 | Fibre-reactive dyestuffs The application is concerned with a compound of the formula (I) ##STR1## and a process for making the same. The compound is useful as fiber-reactive dyestuff in dyeing or printing onto hydroxy- or nitrogen-containing substrates. A printing compositio... | 03/28/2000 |
| 5986075 | Process for the production of diazonium compounds with a low content of sodium ions The present invention relates to a process for desalting aqueous suspensions containing an organic diazonium compound and electrolytes containing Na ions, in which the aqueous suspension is passed through a semipermeable membrane.... | 11/16/1999 |
| 5929218 | Pyridone-based yellow monoazo dye for use in thermal transfer and ink compositions comprising same The present invention relates to pyridone-based yellow monoazo dyes used in thermal transfer having following formula(I) which have good stability and hue. ##STR1## wherein, R1 is hydrogen atom; unsubstituted or substituted alkyl grou... | 07/27/1999 |
| 5919914 | Clathrate of bis 6-hydroxy-4-methyl-5-(3-methyl-imidazolium-1-yl) -3-(phen-4-ylazo) pyridin-2-one! ethylene and an aromatic compound Clathrates of bis6-hydroxy-4-methyl-5-(3-methyl-imidazolium-1-yl)-3-(phen-4-ylazo)pyrid in-2-one!ethylene with aromatics of the general formula I ##STR1## where R1 is C1 -C5 -alkyl, C1 -C5 -hydr... | 07/06/1999 |
| 5698681 | Reactive disazo dyestuff compounds containing halo-substituted triazinyl rings Fiber-reactive disazo dyes correspond to formula I, ##STR1## and they are present as free acids or in salt form. They are used as reactive dyes for dyeing or printing hydroxy-group-containing or nitrogen-containing organic substrates, especially leat... | 12/16/1997 |
| 5554737 | Doubled acid azo dyes with a hydroxypyridone coupling component Azo dyes of the formula ##STR1## where D is the radical of a diazo component, and X is substituted or unsubstituted C2 -C8 -alkylene, in the form of the free acid or its salts, the use thereof for dyeing or printing natural or s... | 09/10/1996 |
| 5510468 | Amino benzophenone dye There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridges, m is 1 or 2, K is the radical of a coupling component, Y is hydrogen or arylazo, one of the two radicals X... | 04/23/1996 |
| 5484901 | Isoindolineazo pigments Isoindolineazo pigments of the general formula I ##STR1## where A is the radical of an active-methylene compound or .dbd.S; L is substituted or unsubstituted 1,4-phenylene, 1,3-phenylene or 1,5-naphthylene; K is the radical of a coupling component K--H; a... | 01/16/1996 |
| 5425785 | Process for dyeing polyester and polyester-containing textile materials The present invention relates to a process for dyeing polyester or polyester-containing textile materials at pH 8 to pH 11 with one or more monoazo dyestuffs of the general formula I ##STR1## in which A, R and X1 to X3 are as de... | 06/20/1995 |
| 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 |
| 5380859 | Pyridone compounds and the preparation of disulfonated pyridone compounds There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridged, m is 1 or 2, K is the radical of a coupling component, Y is hydrogen or arylazo, one of the two radicals X... | 01/10/1995 |
| 5352334 | The use of metal-free sulfo group free basic disazo compounds containing two identical 6-hydroxypyrid-2-one coupling component radicals for producing colored paper Metal-free compounds of the formula ##STR1## and 1:1 and 1:2 metal complexes thereof and acid addition salts of such metal-free compounds and 1:1 and 1:2 metal complexes, wherein each B is --A1 --NR7 R8 or --A1 ... | 10/04/1994 |
| 5344465 | Colorant mixtures containing azo compounds based on phenyloxadiazolylaniline A colorant mixture for use in printing inks contains a pigment of formula I ##STR1## a basic dye of the formula II ##STR2## where the substituents are as defined in the specification L-A. and exhibits higher color strength than that of the pigme... | 09/06/1994 |
| 5151506 | Phenoneazo dyes Phenoneazo dyes of the formula ##STR1## where R1 is substituted or unsubstituted C1 -C4 -alkyl or substituted phenyl, R2 is cyano, carbamoyl or acetyl, R3 is substituted or unsubstituted C1... | 09/29/1992 |
| 5106960 | Azo dyes and the production and use thereof The present invention relates to azo dyes of the formula ##STR1## wherein X is an aryloxy radical or an unsubstituted or substituted C1 -C12 alkyl radical, a cycloalkyl radical or an aryl radical or a group of the formula #... | 04/21/1992 |
| 5066791 | Pyridoneazo dyes with an M-aminobenzoic ester as the diazo component Pyridoneazo dyes of the formula ##STR1## where L is C2 - or C3 -alkylene, R is C1 -C3 -alkyl and n is 1, 2 or 3, are useful for dyeing polyester fabrics.... | 11/19/1991 |
| 5059683 | Dyes containing 6-hydroxypyrid-2-one groups the 1-positions of which contain substituted 1,3,5-triazinyl or pyrimidyl-piperazino or -piperazinium groups linked through bridging radicals and intermediates therefor Compounds of the formula ##STR1## and acid addition salts thereof wherein A1 is C1-8 alkylene; C2-8 alkylene substituted by 1 or 2 substituents selected from hydroxy, halo and cyano; C2-8 alkenylene; cycloh... | 10/22/1991 |
| 5055567 | Disperse dyes which are convertible into a thermo-migration fast form The dyes according to the invention consist of a chromophore and a radical which, on heating, forms an isocyanate or isothiocyanate group. The latter reacts with a suitable group in the environment. Dyeings of excellent thermomigration fastness are obtain... | 10/08/1991 |
| 5023324 | Biscationic disazo and trisazo compounds having optionally further substituted 6-hydroxy-4-methy-3-N-pyridiniumpyridone-2 coupling component radicals, dyes compositions comprising them and their use Disazo and trisazo compounds free of sulfo groups which contain 6-hydroxy-4-methyl-3-N-pyridiniumpyridone-2 coupling component radicals, the preferred compounds being of the formula ##STR1## wherein R is a tetrazo component radical, each R1 | 06/11/1991 |
| 4952677 | Azo colorants for ball point pen and ribbon inks Reddish-brown to yellow shade colorants suitable for ribbon and ball point inks are produced from the glassy waste by-product of pararosaniline manufacture by slurrying the residue in mineral acid, diazotizing, and coupling. the resulting colorants are us... | 08/28/1990 |
| 4939053 | Photosensitive member including azo compound The present invention relates to a photosensitive member containing a specific azo compound for a charge generating agent, which is improved in photosensitive properties, in particular, sensitivity. The specific azo compound is represented by the formula ... | 07/03/1990 |
| 4880431 | Aryl monoazo pyridone yellow compound having two vinylsulfone type fiber reactive groups bonded to a triazine ring for dyeing cellulose or polyamide A monoazo compound of the following formula, ##STR1## wherein R1, R2 and R3 are independently hydrogen or alkyl, R4 is alkyl or carboxy, A is ##STR2## in which R5 is hydrogen, methyl, methox... | 11/14/1989 |
| 4826505 | Monoazo pyridone compounds and application thereof for dyeing of hydrophobic fiber materials A monoazo pyridone compound of the following formula, ##STR1## wherein X is a member selected from hydrogen, halogeno, alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, aralkoxycarbonyl, alkylsulfonyl, arylsulfonyl, carbamoyl, sulfamoyl or cyano, and R i... | 05/02/1989 |
