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54results about "Stilbene-azo dyes" patented technology
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Optical device
InactiveUS20040232394A1Liquid crystal compositionsMethine/polymethine dyesPolarizerElectromagnetic radiation
The invention relates to optical devices for producing and / or transforming polarised electromagnetic emission by means of anisotropic absorption and / or optical rotation effects and / or birefringence and can be used as different polarizers (dichroic, reflecting), lagging layers (retarders), liquid-crystal displays and indicators and also for producing polarising glass for building construction and for sun and antiglare glasses, masks, aprons and faceplates. The inventive optical device is based on at least one molecularly oriented layer of a low-molecular or oligomeric dichroic material which can form a stable lyotropic liquid crystal structure. The projection of at least one anisotropically absorbing fragment of a molecule of the dichroic material on the surface of the molecularly oriented layer of a dipole moment of optical transition is disposed in a parallel position to the optical axis of the molecularly oriented layer at least within several ranges of wavelength of the electromagnetic emission.
Owner:IR GVON KHAN
Ink jet ink, method for producing ink jet ink, ink jet recording method and ink cartridge
InactiveUS20060139429A1Excellent developabilityIncrease resistanceOrganic chemistryMeasurement apparatus componentsPolymer chemistryDirect yellow
An ink jet ink includes at least a coloring material. The coloring material is composed of at least one selected from the group consisting of C.I. Direct Yellow 86, C.I. Acid Yellow 23, C.I. Direct Yellow 173, C.I. Direct Yellow 132 and C.I. Direct Yellow 59, and a compound represented by the following the general formula (I) or a salt thereof.
Owner:CANON KK
Ink jet yellow ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
InactiveUS7241332B2Good storage stabilityStable storageDuplicating/marking methodsInksLightfastnessDirect yellow
To provide an ink jet yellow ink to be used in combination with ink excellent in light resistance and environmental gas resistance with a color fading balance with respect to light and an environmental gas between the inks uniformized. The ink jet yellow ink is an ink jet yellow ink to be used for forming an image together with a cyan ink comprising a compound represented by a general formula (1) or a compound represented by a general formula (2) as a coloring material, the ink jet yellow ink comprising: at least one kind of coloring material selected from the following A group; and at least one kind of coloring material selected from the following B group.A group: C.I. Direct Yellow 132 and C.I. Direct Yellow 173B group: C.I. Direct Yellow 142, C.I. Direct Yellow 86, and a compound represented by a general formula (3).
Owner:CANON KK
Ink jet yellow ink, ink jet light-color ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
InactiveUS7226498B2Improve performanceResistance to influenceMeasurement apparatus componentsDuplicating/marking methodsAlkaline earth metalOrganic solvent
To provide an ink jet yellow ink having a favorable color tone and capable of providing an image excellent in humidity resistance. The ink jet yellow ink of the present invention is an ink jet yellow ink to be used in combination with an ink jet light-color ink comprising at least a coloring material and a water-soluble organic solvent, wherein the coloring material of the ink jet yellow ink is a compound represented by the following General Formula (I) or a salt thereof, and wherein the ink jet light-color ink satisfies a specific condition;wherein M's each independently represent a hydrogen atom, an alkali metal, an alkali earth metal, a cation of organic amine or an ammonium ion, and n's each independently represent 1 or 2; andY≦2.8X+10. Expression (1)
Owner:CANON KK
Ink jet yellow ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
InactiveUS20060119683A1Enhance the imageStable storageMeasurement apparatus componentsDuplicating/marking methodsPolymer scienceEngineering
To provide an ink jet yellow ink to be used in combination with ink excellent in light resistance and environmental gas resistance with a color fading balance with respect to light and an environmental gas between the inks uniformized. The ink jet yellow ink is an ink jet yellow ink to be used for forming an image together with a cyan ink comprising a compound represented by a general formula (1) or a compound represented by a general formula (2) as a coloring material, the ink jet yellow ink comprising: at least one kind of coloring material selected from the following A group; and at least one kind of coloring material selected from the following B group. A group: C.I. Direct Yellow 132 and C.I. Direct Yellow 173 B group: C.I. Direct Yellow 142, C.I. Direct Yellow 86, and a compound represented by a general formula (3).
Owner:CANON KK
Ink, ink jet recording method, recording unit, ink cartridge, and ink jet recording apparatus
InactiveUS20060103705A1Improve moisture resistanceSatisfies color developabilityMeasurement apparatus componentsDuplicating/marking methodsOrganic solventWater soluble
An ink jet ink contains at least a coloring material and a specific water-soluble organic solvent and has both excellent color developability and excellent humidity resistance. The coloring material exhibits a small (9 or less) color difference ΔE value which is determined by a method including a series of specific steps and is represented as the square root of (L1-L2)2+(a1-a2)2+(b1-b2)2. The specific water-soluble organic solvent has an evaporation rate X smaller than that of water and a moisture absorptivity Y, the values of X and Y satisfying the relation of Y≦2.8X+10. The content of the specific water-soluble organic solvent is 50 mass % or more of the total amount of water-soluble organic solvents contained in the ink.
Owner:CANON KK
Color polarizer with support for liquid crystal projector and color liquid crystal projector
The invention is to develop a color polarizing plate with a support, the polarizing plate having both good brightness and polarizing efficiency for a blue channel (for blue light). The color polarizing plate with a support for a liquid crystal projector comprises a polarizing plate containing a stilbene type water-soluble azo dye as a dichroic molecule and a support, wherein the polarizing plate has an average single transmittance of 39% or more and an average crossed transmittance of 0.4% or less at 420 to 500 nm and an average crossed transmittance of 4% or more at 50 to 780 nm.
Owner:NIPPON KAYAKU CO LTD +1
Azo compound, aqueous dye solutions containing the same, inks and use thereof
ActiveUS7387668B2Good storage stabilitySuitable and clarityStyryl dyesMonoazo dyesIon contentWater based
An azo compound which is reduced in the copper ion content and exhibits hue and clarity suitable for ink-jet recording and which can give records having excellent light fastness, water resistance, and moisture proofness, and such ozone resistance as to control the fading and the discoloration; and water-base yellow inks containing the same. In particular, the azo compound represented by the formula (12) having a content of impurity copper ions of 100 ppm or below or salts thereof, and inks containing the same
Owner:NIPPON KAYAKU CO LTD
Ink jet yellow ink, ink jet light-color ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
InactiveUS20060119685A1Excellent toneImprove moisture resistanceMeasurement apparatus componentsDuplicating/marking methodsOrganic solventWater soluble
To provide an ink jet yellow ink having a favorable color tone and capable of providing an image excellent in humidity resistance. The ink jet yellow ink of the present invention is an ink jet yellow ink to be used in combination with an ink jet light-color ink comprising at least a coloring material and a water-soluble organic solvent, wherein the coloring material of the ink jet yellow ink is a compound represented by the following General Formula (I) or a salt thereof, and wherein the ink jet light-color ink satisfies a specific condition; General Formula (I): wherein M's each independently represent a hydrogen atom, an alkali metal, an alkali earth metal, a cation of organic amine or an ammonium ion, and n's each independently represent 1 or 2; and Y≦2.8X+10 Expression (1).
Owner:CANON KK
Aqueous ink composition, water-soluble dye composition and ink-jet recording method
An aqueous ink composition which comprises a compound represented by the formula (1) or the salt thereof: (1) wherein R1 and R2 independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkanoylamino group, an alkoxyalkoxy group, a sulfonic acid group, a carboxyl group or an ureido group, m and n independently represent 1 or 2, and M1 represents a cation from a hydrogen atom, an alkali metal, an alkaline earth metal or an organic amine, or an ammonium ion. The composition has a hue and clarity suitable for the ink-jet recording, and can provide a recorded matter which is excellent in light resistance, water resistance and moisture resistance and can be controlled with respect to the degree of the discoloration or fading by the action of ozone.
Owner:NIPPON KAYAKU CO LTD
Azo compound, aqueous dye solutions containing the same, inks and use thereof
ActiveUS20070119341A1Good storage stabilitySuitable and clarityStyryl dyesMonoazo dyesWater basedIon content
An azo compound which is reduced in the copper ion content and exhibits hue and clarity suitable for ink-jet recording and which can give records having excellent light fastness, water resistance, and moisture proofness, and such ozone resistance as to control the fading and the discoloration; and water-base yellow inks containing the same. In particular, the azo compound represented by the formula (12) having a content of impurity copper ions of 100 ppm or below or salts thereof; and inks containing the same.
Owner:NIPPON KAYAKU CO LTD
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
An electrophotographic photosensitive member is formed of a support, and a photosensitive layer disposed on the support. The photosensitive layer is characterized by containing an azo pigment having an organic group represented by formula (1) below: wherein X1, Z1, k1, B, A, R1 and R2 are defined in the text. The group of the formula (1) may provide at least one of up to 4 azo-substituents of the azo pigment having an entire structure represented byAr+545 N=N-Cp) 1-4,wherein Ar denotes an aromatic or heterocyclic core unit, Cp denotes a coupler residue group, and -(N=N-Cp) denotes such an azo-substituent. The photosensitive member can exhibit good electro-photographic performances including high and stable sensitivity on repetitive use.
Owner:CANON KK
Aqueous ink composition, water-soluble dye composition and ink-jet recording method
InactiveUS20040099180A1Improve light resistanceImprove moisture resistanceMonoazo dyesMeasurement apparatus componentsAlkaline earth metalHue
An aqueous ink composition which comprises a compound represented by the formula (1) or the salt thereof: (1) wherein R1 and R2 independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkanoylamino group, an alkoxyalkoxy group, a sulfonic acid group, a carboxyl group or an ureido group, m and n independently represent 1 or 2, and M1 represents a cation from a hydrogen atom, an alkali metal, an alkaline earth metal or an organic amine, or an ammonium ion. The composition has a hue and clarity suitable for the ink-jet recording, and can provide a recorded matter which is excellent in light resistance, water resistance and moisture resistance and can be controlled with respect to the degree of the discoloration or fading by the action of ozone.
Owner:NIPPON KAYAKU CO LTD
Azo Compound And Salt Thereof, And Dye-Containing Polarizing Film Comprising The Compound Or Salt
InactiveUS20110060134A1Improve performanceIncrease resistanceOrganic chemistryProjectorsHydrogen atomAlkoxy group
Disclosed is an azo compound represented by the general formula (1) or a salt thereof:wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n represents 1 or 2. Also disclosed are a dye-containing polarizing film and a dye-containing polarizing plate, each of which comprises a polarizing film base material and the azo compound contained in the base material.
Owner:NIPPON KAYAKU CO LTD +1
Azo Compound And Salt Thereof, And Dye-Containing Polarizing Film Comprising The Compound Or Salt
InactiveUS20110063546A1Improve performanceIncrease resistanceProjectorsPolarising elementsHydrogen atomAlkoxy group
Owner:NIPPON KAYAKU CO LTD +1
Active dark blue to black dye composition and dye product
ActiveCN112574592AGood lifting effectGood compatibilityOrganic dyesDyeing processFiberPhotochemistry
The invention discloses an active dark blue to black dye composition and a dye product. The active navy blue to black dye composition comprises a component A and a component B. The component A is selected from one or more dye compounds shown as a formula (I) or alkali metal salts thereof, and the component B is selected from one or more dye compounds shown as a formula (II) or alkali metal salts thereof. Based on the component A and the component B, the mass percentage of the component A is 5-50%, and the mass percentage of the component B is 50-95%. The invention provides an active navy blue-to-black dye product. The active navy blue-to-black dye product contains the active navy blue-to-black dye composition. The active navy blue-to-black dye composition and the dye product have the characteristics of good fastness to washing, high fixation rate, good lifting power and the like, and are suitable for printing and dyeing nitrogen-containing and / or hydroxyl-containing fiber materials andblended fabrics of the nitrogen-containing and / or hydroxyl-containing fiber materials.
Owner:ZHEJIANG KEYONG CHEM CO LTD +1
Dichroic dye for polarization film, composition comprising the same for polarization film, method for forming polarization plate and polarization plate prepared thereby
ActiveUS20090290214A1Excellent heat resistance and durability against high-temperatureRaise the ratioLiquid crystal compositionsPerinonesCrystallographyHeat resistance
Disclosed are a new dichroic dye having liquid crystal properties and dichroic properties and capable of being used for forming a polarization film with excellent heat resistance, durability, and polarizing properties, a composition including the same for a polarization film, a method for forming a polarization plate with excellent durability using the composition, and a polarization plate prepared thereby. The new dichroic dye has a structure of R1-L1-(M,L,D) (where, D is a dichroic structure, M is a structure with liquid crystal properties, R1 is a reactive end functional group, and L and L1 are linking structures). The composition for a polarization film includes the dichroic dye. In the method for forming the polarization plate, the composition for a polarization film is applied to a substrate and cured to prepare the polarization plate. The polarization plate has excellent dichroic ratio, heat resistance, durability, and polarizing properties.
Owner:LG CHEM LTD
Pesticidal Compositions
Owner:CORTEVA AGRISCIENCE LLC
Ink jet ink, method for producing ink jet ink, ink jet recording method and ink cartridge
InactiveUS7297199B2Excellent developabilityIncrease resistanceOrganic chemistryMeasurement apparatus componentsOrganic chemistryDirect yellow
An ink jet ink includes at least a coloring material. The coloring material is composed of at least one selected from the group consisting of C.I. Direct Yellow 86, C.I. Acid Yellow 23, C.I. Direct Yellow 173, C.I. Direct Yellow 132 and C.I. Direct Yellow 59, and a compound represented by the following the general formula (I) or a salt thereof.
Owner:CANON KK
Optical information recording medium
InactiveUS20060068326A1High densityExcellent recording characteristicPhotomechanical apparatusRecord information storageExtinctionLaser light
The present invention provides an optical information recording medium comprising a substrate having provided thereon a recording layer in which information can be recorded by laser light irradiation, wherein the recording layer contains a dye represented by the following formula (I): Formula (I) wherein Dye represents a dye residue having an absorption as high as 10000 (cm−1·mol−1) or more as a molar extinction coefficient for light having a wavelength of 450 nm to 900 nm; L represents a divalent connecting group or a single bond; UV represents a dye residue having an absorption as high as 10000 (cm−1·mol−1) or more as a molar extinction coefficient for light having a wavelength of 280 nm to 450 nm; and m denotes an integer from 1 to 8.
Owner:FUJIFILM HLDG CORP +1
Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt
InactiveUS20090126127A1Improve performanceIncrease resistanceMonoazo dyesDisazo dyesHydrogen atomAlkoxy group
Disclosed is an azo compound represented by the general formula (1) or a salt thereof:wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n represents 1 or 2. Also disclosed are a dye-containing polarizing film and a dye-containing polarizing plate, each of which comprises a polarizing film base material and the azo compound contained in the base material.
Owner:NIPPON KAYAKU CO LTD +1
Lyotropic liquid crystalline mixture, coating liquid, and optical anisotropic film
InactiveUS7850868B2FavorableFavorable optical anisotropic filmLiquid crystal compositionsMonoazo dyesLiquid crystallineOrtho position
The lyotropic liquid crystalline mixture of the present invention comprises at least a first azo compound and a second azo compound in relation of constitutional isomers wherein the first azo compound and the second azo compound are the constitutional isomers different in a binding site of at least an azo group. The first azo compound is preferably an azo compound wherein the azo group is bonded to an ortho-position of a hydroxyl group of an aminonaphthol skeleton. The second azo compound is preferably an azo compound wherein the azo group is bonded to an ortho-position of an amino group of an aminonaphthol skeleton.The lyotropic liquid crystalline mixture of the present invention may be utilized as a forming material of an optical anisotropic film, for example.
Owner:NITTO DENKO CORP
Dichroic azo dyestuff and the polarizing film making from the same
The present invention relates to a azo dyestuff compound of the following formula (I), of which the free acid is represented by the following formula:wherein R1, R2, R3, R4, and n are defined as in the specification. The azo dyestuff compound of formula (I) of the present invention is used for preparing polarizing film. The present invention also relates to a polarizing film comprising the azo dyestuff compound of formula (I), which has excellent degree of polarization.
Owner:EVERLIGHT USA INC
Synthesis method for self-dispersible pigment, self-dispersible pigment, ink jet ink, ink cartridge, and ink jet recording method
ActiveUS20120147083A1Improve wear resistanceExcellent in abrasion resistance of an image and long-term ejection stabilityDuplicating/marking methodsInksAtomic groupSynthesis methods
Provided is a synthesis method for a self-dispersible pigment, including performing ring-opening addition of a lactone-based compound to an acidic group bonded to a surface of a pigment particle directly or via another atomic group to bond a functional group including an ester group to the surface of the pigment particle.
Owner:CANON KK
Polarizing element and polarizing plate
InactiveCN103765255AExcellent optical propertiesIncreased durabilityStyryl-azo dyesSynthetic resin layered productsHydrogen atomAlkoxy group
Owner:NIPPON KAYAKU CO LTD +1
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
Dichroic dye for polarization film, composition comprising the same for polarization film, method for forming polarization plate and polarization plate prepared thereby
ActiveUS8197708B2Excellent heat resistance and durability against high-temperatureRaise the ratioLiquid crystal compositionsPerinonesCrystallographyHeat resistance
Disclosed are a new dichroic dye having liquid crystal properties and dichroic properties and capable of being used for forming a polarization film with excellent heat resistance, durability, and polarizing properties, a composition including the same for a polarization film, a method for forming a polarization plate with excellent durability using the composition, and a polarization plate prepared thereby. The new dichroic dye has a structure of R1-L1-(M,L,D) (where, D is a dichroic structure, M is a structure with liquid crystal properties, R1 is a reactive end functional group, and L and L1 are linking structures). The composition for a polarization film includes the dichroic dye. In the method for forming the polarization plate, the composition for a polarization film is applied to a substrate and cured to prepare the polarization plate. The polarization plate has excellent dichroic ratio, heat resistance, durability, and polarizing properties.
Owner:LG CHEM LTD
Polarizing Element And Polarizing Plate
InactiveUS20140218797A1Good optical performanceIncrease heatPolarising elementsOptical articlesHydrogen atomOptical property
[Object] A polarizing element and polarizing plate having improved optical properties and durability.[Solution] A polarizing element characterized in comprising a polyvinyl alcohol resin film adsorbing at least one dichromatic pigment that is a compound represented by formula (I) or a salt thereof as a free acid, and being stretched, wherein the polyvinyl alcohol resin has a degree of polymerization of 5,000 to 10,000:(wherein A represents a phenyl group or a naphthyl group having a substituent; R1-R6 each independently represent a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a sulfo group, or a lower alkoxy group having a sulfo group; X represents an amino group optionally having a substituent, a benzoylamino group optionally having a substituent, a phenylamino group optionally having a substituent, a phenylazo group optionally having a substituent, or a naphthotriazole group optionally having a substituent; and m represents 0 or 1).
Owner:NIPPON KAYAKU CO LTD +1
Polarizing film, display device and production process thereof
ActiveUS9382481B2Increase contrastHigh dichroismLiquid crystal compositionsMonoazo dyesLiquid crystallineDisplay device
A polarizing film comprising a substrate, and a photo alignment film and a light absorption anisotropic film laminated on the substrate in this order, wherein the light absorption anisotropic film has a content ratio of 30% by mass or less of a liquid crystalline non-colorable low molecular weight compound and is obtained by fixing the alignment of a dichroic dye composition comprising at least one nematic liquid crystalline azo dichroic dye; in X-ray diffraction measurement thereof, diffraction peaks derived from periodic structure along a vertical direction to the alignment axis are present, the period indicated by at least one of the diffraction peaks is 3.0 to 15.0 Å and an intensity of the diffraction peak does not show a maximum value in the range of ±70° of the film normal line direction in a plane vertical to the alignment axis.
Owner:FUJIFILM CORP
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