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36results about "Styryl-azo dyes" patented technology

Azo Compounds And Dye-Type Polarizing Films Or Plates Containing The Same

Azo compounds whose free acid forms are represented by the general formula (1) are extremely useful as the dichroic dye to be used in polarizing plates which are excellent in polarization performance and endurance and reduced in the color cross-talk within the visible light region or in polarizers for liquid crystal projectors made by using them; (1) wherein R1 is sulfo, carboxy, or lower alkoxy and R2 is sulfo, carboxy, lower alkyl, or lower alkoxy, with the proviso that a case wherein both R1 and R2 are each sulfo is excepted; R3 to R6 are each independently hydrogen, lower alkyl, or lower alkoxy; and R7 and R8 are each independently hydrogen, amino, hydroxy, sulfo, or carboxy.
Owner:NIPPON KAYAKU CO LTD +1

Azo compound and dye polarizing film containing the same

InactiveUS20100257678A1Improve performanceExcellent resistance to humidityOrganic chemistryDisazo dyesHydrogen atomMedicinal chemistry
Disclosed is an azo compound represented by the formula (1) below, a salt thereof, or a copper complex salt compound thereof.(In the formula, R1 and R2 independently represent a hydrogen atom, a sulfonic acid group, a lower alkyl group or a lower alkoxyl group; R3-R6 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxyl group; R7 represents a lower alkyl group or a lower alkoxyl group; and n represents 0 or 1.)
Owner:NIPPON KAYAKU CO LTD +1

Polarizing film, laminate, and liquid crystal display device

A polarizing film, satisfying DI′ / P′≦4.3×10−4 which expresses relation between degree of polarization P′, and depolarization index DI′ calculated by the equation below is disclosed. X represents a value calculated by the equation below, provided that a polarizing plate having degree of polarization of P, the polarizing film, and a polarizing plate having degree of polarization P, having azimuths of transmission axes of a°, b° and c°, respectively, are stacked in this order as viewed from a light source, to give brightness written as [a / b / c].DI′=1+2PP′+P2+X(P2-1)P2(1+X)X=[0 / 0 / 0][0 / 90 / 90]
Owner:FUJIFILM CORP

Azo Compound, And Dye-Containing Polarizing Film Comprising The Same

Disclosed is an azo compound represented by the formula (1) or (2) or a salt thereof. The azo compound or the salt thereof has an excellent light-polarizing property, and is extremely useful as a dichroic dye for use in a polarizing plate that shows less color leakage in a visible light range or a polarizing plate for a liquid crystal projector comprising the aforementioned polarizing plate. (1) (2) wherein R1 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, a sulfonate group or a carboxyl group; R2 to R5 independently represent a hydrogen atom, a lower alkyl group, a lower alkoxy group or an acetylamino group; X represents a benzoylamino group which may have a substituent, a phenylamino group which may have a substituent, a phenylazo group which may have a substituent, or a naphthotriazole group which may have a substituent; m represents a numeral number of 1 or 2; and n represents a numeral number of 0 or 1.
Owner:NIPPON KAYAKU CO LTD +1

Dichroic dye composition, light absorption anisotropic film, and polarizing element

A light absorption anisotropic film, having at least one dichroic dye, in which the light absorption anisotropic film shows a diffraction peak derived from a periodic structure in a direction in a plane of the light absorption anisotropic film in X-ray diffraction measurement and the diffraction peak has a half width of 1.0 Å or less.
Owner:FUJIFILM CORP

Azo compound, aqueous dye solutions containing the same, inks and use thereof

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

Dye-sensitized photoelectric conversion device

A photoelectric conversion device using a semiconductor fine material such as a semiconductor fine particle sensitized with a dye carried thereon, characterized in that the dye is a methine type dye having a specific partial structure, for example, a methine type dye having a specific carboxyl-substituted hetero ring on one side of a methine group and an aromatic residue substituted with a dialkylamino group or an organic metal complex residue on the other side of the methine group, or a methine type dye having a carboxyl-substituted aromatic ring on one side of a methine group and a heteroaromatic ring having a dialkylamino group or an organic metal complex residue on the other side of the methine group; and a solar cell using the photoelectric conversion element. The photoelectric conversion element exhibits a conversion efficiency comparable or superior to that of a conventionally known photoelectric conversion element sensitized with a methine type dye.
Owner:NIPPON KAYAKU CO LTD

Triazine type azo dye and preparation method thereof

The invention relates to a triazine type azo dye with the general formula (I) shown in the specification and a preparation method of the azo dye. A novel azo dye is obtained by introducing a chloro-s-triazine group into a general monoazo dye and performing a series of condensation reaction. The azo dye comprises a plurality of color-development groups, wherein the contained hindered amine is capable of adsorbing infrared, the DSD acid (namely 4,4'-diamino stilbestrol-2,2'-disulfonic acid) is capable of adsorbing the ultraviolet in the sunlight, and the azo dye is provided with good illumination resistance and sunshine resistance, can be singly or together used with other dyes, and can be applied to the aspects of textile, paper, leather, wood, ink-jet printing ink, and oil ink. The azo dye is a good energy transfer. By containing a plurality of functional groups, the azo dye provided by the invention has more excellent weather resistance than that of a general azo dye.
Owner:上海汇友精密化学品有限公司

Ink composition, inkjet recording ink composition, ink set, ink cartridge, inkjet recording method and recorded matter

An ink composition having a suitably-adjusted hue and causing no decomposition of dyes during storage is provided. The ink composition contains a compound (a) represented by the following formula (1), an ingredient (c) and moisture-retentive agents, characterized by being from 0.1 mass % to lower than 7.0 mass % in content of the compound represented by the formula (1), 10.0 mass % or lower in content of a moisture-retentive agent having 3 or more hydroxyl groups (b) and lower than 30.0 in molar ratio of the moisture-retentive agent having 3 or more hydroxyl groups to the compound represented by the formula (1):wherein each of Ar1 and Ar2 preferably represents an aromatic heterocyclic group, each of A1 and A2 represents a hydrogen atom or a substituent, Y represents —OM or —NR1R2, M represents a hydrogen atom or a metal ion and each of R1 and R2 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or the like. The ingredient (c) is at least one compound selected from C.I. Direct Yellow 59, id. 86, id. 132 or the like.
Owner:FUJIFILM CORP

Achromatic Dye-Based Highly-Transmissive Polarization Element, And Polarization Plate

[Problem] To provide a highly-transmissive polarization plate that can express achromatic white when a polarization element is arranged parallel to an absorbing axis, and achromatic black when the polarization element is arranged orthogonal to the absorbing axis.[Solution] A polarization element, which is obtained from a base material containing a dichromatic dye formed from an azo compound, is characterized in that the single-body transmittance is 35-60%, and a* and b* values, which are acquired for a polarization element or a polarization plate using JIS•Z•8729, have an a* and b* absolute value that is: less than 1 in a single-body transmittance measurement; less than 2 when two sheets of the base material are arranged parallel to the absorbing axis direction and the a* and b* values are measured; and less than 2 when two sheets of the base material are arranged orthogonal to the absorbing axis direction and the a* and b* values are measured.
Owner:NIPPON KAYAKU CO LTD +1

Polarizing Element And Polarizing Plate

[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

Polarizer And Polarizing Plate

[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 formed by adsorbing at least one dichromatic pigment selected from a compound represented by formula (I), a salt thereof, or a transition metal complex, and performing stretching, the polyvinyl alcohol resin film having a degree of polymerization of 5,000 to 10,000 (A represents a nitro group or an amino group; R1 and R2 each independently represents 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; and X represents an benzoylamino group optionally having a substituent, an phenylamino group optionally having a substituent, an phenylazo group optionally having a substituent, or an naphthotriazole group optionally having a substituent, the substituent being a lower alkyl group, a lower alkoxy group, a sulfo group, an amino group, or a substituted amino group).
Owner:NIPPON KAYAKU CO LTD +1

Dye-sensitized photoelectric conversion device

A photoelectric conversion device using a semiconductor fine material such as a semiconductor fine particle sensitized with a dye carried thereon, characterized in that the dye is a methine type dye having a specific partial structure, for example, a methine type dye having a specific carboxyl-substituted hetero ring on one side of a methine group and an aromatic residue substituted with a dialkylamino group or an organic metal complex residue on the other side of the methine group, or a methine type dye having a carboxyl-substituted aromatic ring on one side of a methine group and a heteroaromatic ring having a dialkylamino group or an organic metal complex residue on the other side of the methine group; and a solar cell using the photoelectric conversion element. The photoelectric conversion element exhibits a conversion efficiency comparable or superior to that of a conventionally known photoelectric conversion element sensitized with a methine type dye.
Owner:NIPPON KAYAKU CO LTD

Thermal transfer imaging element containing infrared bichromophoric colorant

InactiveUS6841514B2Eliminate unwanted absorptionStyryl-azo dyesMethine/polymethine-azo dyesCalorescenceChromophore
Disclosed is an imaging element comprising a bichromophoric molecule comprising a first chromophore that exhibits a first absorption maximum above 700 nm and a second chromophore that exhibits a second absorption maximum different from the first absorption maximum, wherein the absorption of the first and second chromophores are substantially independent of each other, and a process for imaging using such a donor element. Elements of the invention eliminate unwanted absorptions in the final image.
Owner:EASTMAN KODAK CO
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