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31results about "Anthraquinone-azo dyes" patented technology
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Dark quenchers for donor-acceptor energy transfer
InactiveUS7019129B1Minimize fluorescenceEnhanced interactionBioreactor/fermenter combinationsBiological substance pretreatmentsEnergy transferExcited state
Owner:HSBC TRUSTEE COMPANY UK LIMITED AS SECURITY AGENT
Dark quenchers for donor-acceptor energy transfer
InactiveUS20050272088A1Minimize fluorescenceEnhanced interactionAnthraquinone-azo dyesMonoazo dyesEnergy transferExcited state
The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.
Owner:HSBC TRUSTEE COMPANY UK LIMITED AS SECURITY AGENT
Dichroic dye and microencapsulated liquid crystal composition thereof
ActiveUS20060147652A1Good light fastnessImprove solubilityLiquid crystal compositionsAnthraquinone-azo dyesCrystallographySolubility
Dichroic dyes, compositions thereof, and liquid crystal compositions, microencapsulated liquid crystal compositions and liquid-crystal display elements employing the same. The dichroic dyes have high photostability in addition to excellent solubility. Furthermore, the liquid crystal composition employing the above dichroic dyes can have an orientational order parameter more than 0.7.
Owner:IND TECH RES INST
Dark quenchers for donor-acceptor energy transfer
InactiveUS20060035262A1Minimize fluorescenceEnhanced interactionAnthraquinone-azo dyesMonoazo dyesEnergy transferExcited state
The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.
Owner:HSBC TRUSTEE COMPANY UK LIMITED AS SECURITY AGENT
Metal complex colorant comprising azo moiety
Owner:S PRINTING SOLUTION CO LTD
Method for synthesizing anthraquinone type dye or chromophore by aromatic amination of bromamine acid
ActiveCN104312193AReduce usageReduce heavy metal contentAnthraquinone-azo dyesReactive dyesWastewaterSolvent
The invention provides a method for synthesizing anthraquinone type dye or chromophore by aromatic amination of bromamine acid. The method comprises the following steps: catalyzing a condensation reaction of bromamine and arylamine in a solvent by adopting a catalyst system containing cuprous complex. According to the method, the cuprous complex is used as the catalyst system, nearly 100% conversion of the bromaine acid can be realize, no bromamine acid hydrolyzed (purple byproduct) or debrominated byproduct is generated, generation of by products is remarkably reduced, the yield of condensation products is remarkably increased, emission of acid-containing wastewater with deep chromaticity is reduced; and copper powder is not used, the usage of catalyst can be reduced, the content of heavy metals in the condensation products can be reduced, the content of heavy metals in wastewater can be reduced, environmental pollution can be reduced, and production cost can be reduced.
Owner:DALIAN UNIV OF TECH
Chromene Compounds
A chromene compound represented by the following formula (1),wherein R1, R2, R3 and R4 are, respectively, hydrogen atoms, alkyl groups, aryl groups, or the like groups under a condition that at least two of R1 to R4 are not hydrogen atoms,R5, R6, R7 and R8 are, respectively, alkyl groups, aryl groups or the like groups,m and n are, respectively, integers of 0 to 4, andx and y are, respectively, integers of 0 to 5.The compound has a basic structure in which a 6-membered ring is condensed in a form of shearing a carbon atom at the fifth position and a carbon atom at the sixth position of a 2H-benzo[h]chromene skeleton. Owing to this molecular structure, the chromene compound of the invention develops a yellow color or a neutral tint by itself, exhibits favorable photochromic properties, and does not exhibit deteriorated photochromic properties even when it is used in combination with a photopolymerization initiator.
Owner:TOKUYAMA CORP
Colorants based n-halamines compositions and method of making and using
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST
New anionic coloring agents to dye leather, paper, cardboard and textile substrates: mixtures of coloring agents including these new products, and substrates dyed using the above coloring agents
An anionic coloring agent according to the following formula: CA—RSA. CA comprises at least a chromophore and RSA is a spacer-arm with the chemical structure: —X—R-Z. X is a chemical bond, —S(O)n, or —NR1, wherein R1 is hydrogen or a C1-C10 alkyl group; R is a C1-C10 alkylene group; Z is —NR2R3, wherein R2 and R3 are, independently hydrogen or a C1-C10 alkyl group. Alternatively, Z is —NR4—(CH2)m—W, wherein R4 is hydrogen, a hydroxy C1-C10 alkyl group, or C1-C10 alkyl group; m is an integer from 1 to 10; and W is —COOR5, wherein R5 is hydrogen, a C1-C10 alkyl group; or —CONR6R7. R6 and R7 are, independently, a hydrogen atom, a C1-C10 alkyl group, —SO3H; —S—SO3H; —CN: or SO3R8 wherein, R8 is hydrogen, a C1-C10 alkyl group, or —S—SO3R9 group, wherein, R9 is hydrogen atom, or a C1-C10 alkyl group; provided that when X is —NR1, and Z is —NR2R3, then R1, R2 and R3 cannot be simultaneously a hydrogen atom. The inclusion of spacer-arms in anionic coloring agents improves dye properties such as strength, tone and affinity.
Owner:VILMAX C I F I A
Green dye, preparation method thereof, ink and electrowetting display
ActiveCN105670332AImprove solubilityBright colorAnthraquinone-azo dyesMonoazo dyesSolubilityOrganic solvent
The invention discloses green dye, a preparation method thereof, ink and an electrowetting display. The green dye adopts a single-molecule structure and has higher solubility, the ink suitable for electrowetting displaying can be obtained when the green dye is dissolved in an organic solvent, the color is bright and gorgeous, the light resistance is good, the prepared ink has higher molar extinction coefficient and FoM value, and an important green single-molecule ink material can be provided for the colorful electrowetting display.
Owner:SHENZHEN GUOHUA OPTOELECTRONICS +1
Colorants based N-halamines compositions and method of making and using
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST
Method of preparing complex-azo pigment and complex-azo pigment thereof
InactiveUS20100010204A1Quality improvementAnthraquinone-azo dyesPreparation by acylationPolymer sciencePigment
Owner:RICOH KK
Azo pigment, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
InactiveUS20100075239A1Small potential variationLittle changeAnthraquinone-azo dyesMonoazo dyesEngineeringPigment
The present invention provides an azo pigment comprising a group represented by the general formula (1) below, an electrophotographic photosensitive member comprising an intermediate layer comprising the azo pigment, and a process cartridge and an electrophotographic apparatus that comprise the electrophotographic photosensitive member.
Owner:CANON KK
Azo dyes
InactiveUS20100031452A1High densityLow cytotoxicityCosmetic preparationsAnthraquinone-azo dyesPhotochemistryQuaternary amine
The present invention relates to azo dyes, in particular azo dyes of Formula (I) or (II), a tautomer, a quaternary amine, or a salt thereof,wherein R1, R2a, R2b, R3, R4, R5, R3, R7, R8, R9, R10, R11 have the same meaning as in the claims. The present invention also relates to processes for preparing said compounds, compositions containing them and their use as dyes.
Owner:UNIVERSITE CATHOLIQUE DE LOUVAIN +1
Metal complex colorant comprising azo moiety
A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group;M is a polyvalent transition metal; L is a neutral or anionic ligand; n is an integer from 1 to 3; and J is a linker. The metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.
Owner:S PRINTING SOLUTION CO LTD
AZO pigment, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
The present invention provides an azo pigment comprising a group represented by the general formula (1) below, an electrophotographic photosensitive member comprising an intermediate layer comprising the azo pigment, and a process cartridge and an electrophotographic apparatus that comprise the electrophotographic photosensitive member.
Owner:CANON KK
Self-dispersible metal complex colorant comprising azo moiety
A self-dispersible metal complex colorant is represented by formula 1, which has improved storage stability, may embody various colors and has improved fastness, such as light resistance, water resistance and the like:wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; T is a mono- or poly-substituted hydrophilic functional group; n is an integer between 1 and 3; and J is a linker. The self-dispersible metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.
Owner:S PRINTING SOLUTION CO LTD
Chromene compound
InactiveUS6875878B2Good Photochromic PropertiesSmall initial colorAnthraquinone-azo dyesOrganic chemistryCompound aAryl
A chromene compound represented by the general formula (1), wherein R1 to R4 are hydrogen atoms, hydroxyl groups, alkyl groups, alkoxy groups, substituted amino groups or halogen atoms, R1 to R4 may be bonded together to form a ring, R5 and R6 are alkyl groups, aryl groups or heteroaryl groups, or R5 and R6 together may form a ring, a cyclic group containing X or Y is an aromatic hydrocarbon group or an aromatic heterocyclic group, and a divalent group Z is an alkylene group.This compound exhibits excellent photochromic properties, such as small initial color, a large fading rate, excellent resistance and developing a color tone of a neutral tint.
Owner:TOKUYAMA CORP
Self-dispersible metal complex colorant comprising azo moiety
A self-dispersible metal complex colorant is represented by formula 1, which has improved storage stability, may embody various colors and has improved fastness, such as light resistance, water resistance and the like: wherein each of A1 and A2 is independently a moiety which includes a substituted or unsubstituted C2-C30 alkenylene group having at least one double bond and is conjugated with an azo group; each of X1 and X2 is selected from the group consisting of a hydroxy group, a C1-C4 alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group; M is a polyvalent transition metal; L is a neutral or anionic ligand; T is a mono- or poly-substituted hydrophilic functional group; n is an integer between 1 and 3; and J is a linker. The self-dispersible metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.
Owner:S PRINTING SOLUTION CO LTD
Anthrapyridone Azo Dyes, Their Preparation And Use
InactiveUS20180362767A1Good light stabilityHigh color saturationAnthraquinone-azo dyesInksCelluloseMagenta
Azo anthrapyridone dye of general formula (III) wherein A, R1, R2, B, M and n are as described in the specification, are excellent magenta dyes for dyeing and printing of paper, other cellulose containing materials and textiles materials and, in particular, for the preparation of recording fluids for ink jet printing and for writing utensils.
Owner:DFI CHEM
Dichroic dye and microencapsulated liquid crystal composition thereof
Dichroic dyes, compositions thereof, and liquid crystal compositions, microencapsulated liquid crystal compositions and liquid-crystal display elements employing the same. The dichroic dyes have high photostability in addition to excellent solubility. Furthermore, the liquid crystal composition employing the above dichroic dyes can have an orientational order parameter more than 0.7.
Owner:IND TECH RES INST
Quenching dye for labeling biomolecules and method for preparing the same
ActiveUS20160266130A1Broad and high absorption spectrumImprove solubilityAnthraquinone-azo dyesOrganic chemistrySolubilityHigh absorption
The present disclosure provides a quenching dye with an anthraquinone structure, which has a broad and high absorption spectrum in the visible and near-infrared wavelength regions and exhibits high stability and superior solubility in aqueous conditions. A quenching dye composition containing the anthraquinone compound according to the present disclosure as an active ingredient can be widely used in the field of optical molecular imaging to observe the movement of a biomolecule because it can easily label a biomolecule manipulated in an aqueous buffer.
Owner:DKC
Anthrapyridone azo dyes, their preparation and use
Azo anthrapyridone dye of general formula (III) wherein A, R1, R2, B, M and n are as described in the specification, are excellent magenta dyes for dyeing and printing of paper, other cellulose containing materials and textiles materials and, in particular, for the preparation of recording fluids for ink jet printing and for writing utensils.
Owner:DFI CHEM
Method of preparing complex-AZO pigment and complex-AZO pigment thereof
InactiveUS8207312B2Quality improvementAnthraquinone-azo dyesPreparation by acylationPhotopigmentPhotochemistry
Owner:RICOH KK
Cationic direct dyes
Owner:BASF AG
Method for the synthesis of anthraquinone dye or chromophore by aryl amination of bromoacid
ActiveCN104312193BReduce usageReduce heavy metal contentAnthraquinone-azo dyesReactive dyesWastewaterCopper
The invention provides a method for synthesizing anthraquinone type dye or chromophore by aromatic amination of bromamine acid. The method comprises the following steps: catalyzing a condensation reaction of bromamine and arylamine in a solvent by adopting a catalyst system containing cuprous complex. According to the method, the cuprous complex is used as the catalyst system, nearly 100% conversion of the bromaine acid can be realize, no bromamine acid hydrolyzed (purple byproduct) or debrominated byproduct is generated, generation of by products is remarkably reduced, the yield of condensation products is remarkably increased, emission of acid-containing wastewater with deep chromaticity is reduced; and copper powder is not used, the usage of catalyst can be reduced, the content of heavy metals in the condensation products can be reduced, the content of heavy metals in wastewater can be reduced, environmental pollution can be reduced, and production cost can be reduced.
Owner:DALIAN UNIV OF TECH
Polarizing film, coating solution, and image display device
InactiveUS20120235091A1High dichroic ratioRaise the ratioLiquid crystal compositionsAnthraquinone-azo dyesPhenacylHydrogen atom
The present invention provides a polarizing film having a high dichroic ratio.The polarizing film of the present invention contains an azo compound represented by the following general formula (1).In the general formula (1), the OH group is attached to the naphthalene ring at an ortho position relative to the azo group attached to the ring, R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted acetyl group, a substituted or unsubstituted benzoyl group, or a substituted or unsubstituted phenyl group, M represents a counterion, m represents an integer of 0 to 2, n represents an integer of 0 to 6, at least one of m and n is not 0, and Q represents an anthraquinone ring having an OH group.
Owner:NITTO DENKO CORP
Azo pigment, color filter, colorant and coloring composition used therefor, and display device and imaging element including the same
ActiveCN110511593BImprove heat resistanceGood light fastnessAnthraquinone-azo dyesAnthracene dyesArylHydrogen atom
The present invention provides an azo pigment, a color filter, a colorant and a coloring composition therefor, and a display device and an imaging element including the same, which are not only excellent in heat resistance, light resistance, etc. The coloring composition for color filters has few foreign matter in the film, good storage stability and dye migration properties, high brightness, and a thin film thickness when the same color is expressed. The said subject is solved by the azo pigment represented by following general formula (1). In general formula (1), R 1 Represents a halogen atom, an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent; R 2 and R 3 Each independently represents a hydrogen atom, an alkyl group which may have a substituent, and a phenyl group which may have a substituent.
Owner:TOYO INK SC HOLD CO LTD +2
Chromene compounds
Disclosed is a chromene compound represented by the following formula (1),wherein R1, R2, R3 and R4 are, respectively, hydrogen atoms, alkyl groups, aryl groups, or the like groups under a condition that at least two of R1 to R4 are not hydrogen atoms, R5, R6, R7 and R8 are, respectively, alkyl groups, aryl groups or the like groups, m and n are, respectively, integers of 0 to 4, and x and y are, respectively, integers of 0 to 5.
Owner:TOKUYAMA CORP
Quenching dye for labeling biomolecules and method for preparing the same
ActiveUS9512315B2Broad and high absorption spectrumImprove solubilityAnthraquinone-azo dyesOrganic chemistrySolubilityHigh absorption
The present disclosure provides a quenching dye with an anthraquinone structure, which has a broad and high absorption spectrum in the visible and near-infrared wavelength regions and exhibits high stability and superior solubility in aqueous conditions. A quenching dye composition containing the anthraquinone compound according to the present disclosure as an active ingredient can be widely used in the field of optical molecular imaging to observe the movement of a biomolecule because it can easily label a biomolecule manipulated in an aqueous buffer.
Owner:DKC
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