40results about "Naphthalimide/phthalimide dyes" patented technology

The preparation method comprises the following steps: carrying out reflux reaction on 4-bromo-1, 8-naphthalic anhydride and primary amine in an organic solvent to obtain an intermediate product, and carrying out C-N coupling reaction on the intermediate product, a compound containing a nitrogen secondary amine electron-donating group, alkali and a catalyst in the organic solvent to obtain the double-state emission fluorescent dye. The two-state emission dye is obtained. An amino auxochrome group of a bridge ring structure is modified in a 4-bromine-1, 8-naphthalimide parent, the fluorescence quantum yield of the dye in a polar solvent is improved through the characteristic that nitrogen atom lone pair electrons of the nitrogen-containing bridge ring structure are not easy to overturn, and pi-pi stacking, which is not beneficial to emission, of the dye is inhibited through the large steric hindrance effect of the bridge ring structure; the dye shows bright fluorescence emission in non-polar and polar solvents, also has a very strong fluorescence quantum yield in a solid state, and shows a quantum yield greater than 94% when the dye is dispersed in an EVA (Ethylene-Vinyl Acetate) film.

To provide a colored resin composition that can form a color filter having excellent heat resistance and light resistance.SOLUTION: This invention relates to a colored resin composition that contains a colorant and an alkali-soluble resin, the colorant containing a terylene compound having 8 or more rings fused together.SELECTED DRAWING: None

The present invention relates to a novel photoluminescent composite comprising a BODIPY moiety covalently bonded to a blue light absorbing moiety, and a color conversion film and a backlight unit using the same.

The present invention provides a pigment composition that can improve absorbance across the entire visible light spectrum without increasing absorbance in the ultraviolet region. Furthermore, it provides a colored composition and molded article that achieve high light-shielding properties without interfering with active energy ray curing. [Solution] The pigment composition of the present invention comprises one or more compounds (A) represented by the following general formula (i), and a pigment (B). The pigment composition comprises one or more pigments selected from the group consisting of carbon black, benzodifuranone pigments, and perylene pigments. [C1] TIFF2026095407000040.tif17170

Disclosed are: a fluorescent compound represented by general formula (I), (I)′, or (I)″, as a fluorescent compound which has high retention in a lipid bilayer, has excellent ease of handling, and can achieve uniform dyeing in a dyeing target; and a lipid bilayer dyeing method and an endocytosis detection method using said compound.Ch is a hydrophobic-field-sensitive fluorescent chromophore in which the fluorescence intensity increases in hydrophobic environments; A-H is an anionic functional group capable of generating anions by deprotonation; Xn+ is a positive ion having biological compatibility; n is 1, 2, or 3; L is a linker that binds to a hydrophobic-field-sensitive fluorescent chromophore and links the fluorescent chromophore and the anionic functional group; and LH+ indicates a state wherein the linker, which contains a cationic functional group capable of generating cations by protonation, has generated a cation by protonation.

The present invention provides a pigment composition that can improve absorbance across the entire visible light region without increasing absorbance in the ultraviolet region. It also provides a colored composition and molded article that can achieve high light-shielding properties without interfering with active energy ray curing. The pigment composition of the present invention comprises one or more compounds (A) represented by the following general formula (i) and a pigment (B). The pigment composition comprises one or more pigments selected from the group consisting of carbon black, benzodifuranone pigments, and perylene pigments. [C1] TIFF0007838715000041.tif17170

This invention relates to a method for preparing easily dispersible pigments using graphene-modified CI Pigment Red 179. Monolayer graphene or monolayer graphene oxide powder and a solvent are added to water and stirred to mix. CI Pigment Red 179 is then added, and the mixture is stirred and slurried to obtain a pigment slurry. A nonionic surfactant is added, and the mixture is stirred and slurried again. The slurry is then dispersed by grinding in a sand mill. An anionic surfactant is added to the dispersed slurry, and the mixture is dried in a spray dryer to obtain an easily dispersible pigment. The easily dispersible pigment obtained by this invention using graphene-modified CI Pigment Red 179 exhibits high tinting strength, small particle size, more concentrated particle size distribution, and good dispersibility when used in coatings and inks. The tinting strength can reach 129%, the average particle size is reduced from 24.140 μm to 4.482 μm, the particle size distribution is more concentrated, and soft, easily dispersible pigment particles are obtained.

[Problem] To provide a colorant that has high heat resistance and thus does not cause discoloration or fading even when exposed for a long period of time under long-term high heat conditions, that has excellent bleed resistance and sublimation resistance and thus does not cause color to migrate to a mold or to other resin components, and that does not cause a thermoplastic resin to lose the physical properties thereof when added thereto. [Solution] This colorant includes at least one compound represented by chemical formula (1a), at least one compound represented by chemical formula (1b), and / or at least one compound represented by chemical formula (1c) (in chemical formulas (1a), (1b), and (1c), each of R1, R2, R4, R5, R7, and R8 is a hydrogen atom or a nitrogen-containing heterocyclic group or an amino group that may have a substituent, each of R3, R6, and R9 is at least one group selected from among an alkoxy group, a carboxy group, a hydroxy group, a sulfo group, and a sulfonamide group, p and r are each 0 to 2 inclusive, and q is 0 to 4 inclusive).

To provide compounds, conjugates and methods that may be used to detect the presence of an analyte in a sample, such as a biological sample.SOLUTION: The invention provides compounds of formula (I), or salts thereof.SELECTED DRAWING: Figure 1

Disclosed herein are compounds, conjugates and methods that can be used to detect the presence of an analyte in a sample, such as a biological sample.

The present disclosure relates to yeast cells that have been genetically modified to reduce the tendency to degrade certain platform chemicals, such as acrylic acid, and methods for preparing and using such yeast cells for the production of acrylic acid and other compounds. The present disclosure relates to a novel photoluminescent complex comprising a BODIPY moiety, a blue light absorbing moiety, and a linker conjugate, wherein the linker conjugate covalently bonds the blue light absorbing moiety to the ring-locked BODIPY moiety, a color conversion film comprising the photoluminescent complex, and a backlight unit using the same.

The application relates to the field of dye technology, and particularly discloses a NDI self-coupling yellow dye, an ink and an electrowetting display device. 20 The structure formula of the NDI self-coupling yellow dye is as shown in the following formula: wherein R1 is selected from any one of C1-C 20 alkyl, C1-C alkyl with branches; R2 is selected from any one of a phenyl and a substituted alkyl phenyl; and n is a positive integer. The application provides a series of NDI self-coupling yellow dyes with a naphthalimide structure. Through self-coupling, the molar absorption coefficient is increased without changing the color. The prepared NDI self-coupling yellow dye can be dissolved in an organic solvent to prepare an ink suitable for electrowetting display. When the ink is applied to the electrowetting display device, the electrowetting display device has a good aperture ratio and a short switching response time.

The invention relates to a naphthalene diimide small molecule, a ring-expanded naphthalene diimide small molecule and a preparation method and application thereof, and the preparation method of the ring-expanded naphthalene diimide small molecule comprises the following steps: in an inert gas atmosphere, adding a brominated naphthalene diimide small molecule into a second organic solvent, then adding a sulfur salt, and carrying out a heating reaction to obtain the ring-expanded naphthalene diimide small molecule. Obtaining a crude product; and purifying the crude product to obtain the ring-expanded naphthalene diimide micromolecule. Compared with the prior art, the compound has certain molecular weight and is easy to synthesize, hydrophilic side chains are introduced in the long-axis direction of molecules, so that the hydrophilicity and solubility of the compound are improved, good thermal stability is shown, and solution processing of the compound can be achieved.

The invention relates to the technical field of dyes, and particularly discloses a naphthalimide benzooxygen heterocyclic yellow dye, ink and an electrowetting display device. The structural formula of the naphthalimide benzooxygen heterocyclic yellow dye is shown in the specification, wherein R1, R2 and R3 are respectively and independently selected from any one of alkyl, alkoxy, alkyl phenyl, alkoxy phenyl and thienyl. A dye main body obtained after coupling of naphthalimide and phenol mainly absorbs blue light of 400-480 nm, the substance is yellow, the main body structure has a large conjugate plane, is immiscible in polar liquid and has a good molar absorption coefficient, the solubility is improved by adding long-chain branched alkyl in the main body structure, and the dye has a good color rendering effect. The prepared dye can be dissolved in an organic solvent to prepare printing ink suitable for electrowetting display, and after the printing ink is applied to an electrowetting display device, the electrowetting display device has good aperture opening ratio, short switch response time, good electrical stability and good optical stability.

The present application relates to dyes containing a naphthalimide core and their uses as fluorescent labels. These dyes may be used as fluorescent labels for nucleotides in nucleic acid sequencing applications.

A luminescent compound has a structure represented by a general formula (1),wherein R represents a luminescent dye skeleton, X represents an ionic substituent, and L represents a single bond, an oxygen atom, a sulfur atom, a selenium atom, or an NH group.

The invention discloses a naphthalimide fluorescent dye as well as a preparation method and application thereof, and relates to the technical field of fluorescent dyes, a naphthalimide compound is taken as a two-photon fluorescent substrate, a palladium ion recognition group is introduced through chemical reaction, so that fluorescence of the compound is quenched, and the naphthalimide fluorescent dye is obtained; the naphthalimide fluorescent dye can generate a specific reaction after recognizing palladium ions, so that fluorescence is enhanced, and fluorescence emission with the wavelength of 460 nm is generated in an excitation state with the wavelength of 360 nm; by utilizing the opening characteristic, a powerful detection tool is provided for controlling the content of palladium ions in raw material medicines and chemical intermediates.

Described herein is a wavelength converting pixel film composition and / or a film containing the same that has improved quantum efficiency and color gamut. The wavelength converting pixel film composition and / or film includes a film media, a blue light absorbing compound, and at least one photoluminescent dye, the photoluminescent dye including a blue absorbing moiety, and a photoluminescent dye.

This invention discloses a high-temperature resistant fluorescent dye and its preparation method, relating to the field of dyes. In preparing the high-temperature resistant fluorescent dye, 4-bromo-1,8-naphthalenedicarboxylic anhydride is reacted sequentially with allylamine and 4-(N,N-dimethylaminosulfonyl)phenylboronic acid pinacol ester to obtain a modified fluorescent dye. 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl and 3,3',4,4'-biphenyltetracarboxylic dianhydride are polymerized using silica as a template, followed by grafting of an epoxy compound containing double bonds. The silica is then etched with hydrofluoric acid to obtain transparent polyimide porous microspheres. The transparent polyimide porous microspheres, the modified fluorescent dye, and hydrogen-containing silicone oil are reacted to obtain the high-temperature resistant fluorescent dye. The high-temperature resistant fluorescent dye prepared by this invention exhibits excellent migration resistance and high-temperature resistance.

Blue light absorbing compounds which may exhibit increased durability are disclosed herein.

To provide a polarized light emitting film which offers high transmittance in the visible light region and high durability in harsh environments, and to provide a polarized light emitting plate and a display device.SOLUTION: Provided herein is a polarized light emitting film containing a water-soluble naphthalimide compound represented by formula (1) below or a salt thereof. (In formula (1), A represents a naphthalimide skeleton that may have a substituent, X represents a sulfo group or carboxy group, and n represents an integer of 1 to 3.)SELECTED DRAWING: None

To provide a color filter red coloring composition which offers superior dispersion stability and is capable of suppressing water-induced irregularity during manufacturing of a color filter.SOLUTION: A color filter red coloring composition is provided, containing a coloring pigment, pigment dispersant, pigment dispersion aid, resin, and organic solvent. The coloring pigment contains C.I.Pigment Red 179. The pigment dispersant has a quaternary ammonium salt. The resin contains an acrylic resin having a double bond.SELECTED DRAWING: None

The present disclosure relates to novel photoluminescent complexes comprising a BODIPY moiety covalently bonded to a blue light absorbing moiety, and color conversion films and backlight units employing the same.

There are provided a wavelength selective absorption filter including a resin, and four types of dyes A to D each having a main absorption wavelength range in different specific wavelength regions, in which an absorbance Ab (λ) of the wavelength selective absorption filter at a wavelength λ nm satisfies specific Relational Expressions (I) to (VI), and an organic electroluminescent display device.

The present disclosure relates to novel photoluminescent complexes comprising a BODIPY moiety covalently attached to a blue light absorbing xanthenoisoquinoline derivative, color conversion films comprising the photoluminescent complexes, and backlight units employing the same.

Provided is a colorant which, due to its high heat resistance, does not discolor or fade even when exposed to high temperature conditions for a long time and over a long period, and due to its anti-bleeding property and sublimation resistance, does not contaminate the molding die and molding machine or cause color transfer to other resin parts. Further, it does not deteriorate the physical properties of the added thermoplastic resin. The colorant contains at least one compound represented by the following Chemical Formula 1a, at least one compound represented by the following Chemical Formula 1b, and / or at least one compound represented by the following Chemical Formula 1c. In Chemical Formulas 1a, 1b, and 1c, R 1 , R 2 , R 4 , R 5 , R 7 , and R 8 are a hydrogen atom, an amino group which may have a substituent, or a nitrogen-containing heterocyclic group, and R 3 , R 6 , and R 9 are at least one selected from an alkoxy group, a carboxyl group, a hydroxyl group, a sulfo group, and a sulfonamide group, p and r are 0 to 2, and q is 0 to 4.

The present disclosure relates to yeast cells that have been genetically modified to reduce the tendency to degrade certain platform chemicals, such as acrylic acid, and methods for preparing and using such yeast cells for the production of acrylic acid and other compounds. The present disclosure relates to a novel photoluminescent complex comprising a BODIPY moiety, a blue light absorbing moiety, and a linker conjugate, wherein the linker conjugate covalently bonds the blue light absorbing moiety to the ring-locked BODIPY moiety, a color conversion film comprising the photoluminescent complex, and a backlight unit using the same.

The present invention provides a pigment composition that can improve absorbance across the entire visible light region without increasing absorbance in the ultraviolet region. It also provides a colored composition and molded article that can achieve high light-shielding properties without interfering with active energy ray curing. The pigment composition of the present invention comprises one or more compounds (A) represented by the following general formula (i) and a pigment (B). The pigment composition comprises one or more pigments selected from the group consisting of carbon black, benzodifuranone pigments, and perylene pigments. [C1] TIFF0007838715000041.tif17170

There are provided a wavelength selective absorption filter including a resin, and four types of dyes A to D each having a main absorption wavelength range in different specific wavelength regions, in which an absorbance Ab (λ) of the wavelength selective absorption filter at a wavelength λ nm satisfies specific Relational Expressions (I) to (VI), and an organic electroluminescent display device.