23 results about "Xanthene dye" patented technology

The invention relates to the technical field of organic dyes, in particular to a novel xanthene dye for blue photoresist color paste and a synthesis method of the novel xanthene dye. The invention relates to a synthesis method of a novel xanthene dye for blue photoresist color paste, which comprises the following steps: 1) taking rigid cyclic amine as a nucleophilic reagent, and carrying out aromatic nucleophilic substitution reaction on a chlorinated xanthene compound to obtain a xanthene intermediate; 2) performing chlorination reaction on the xanthene intermediate by using a chlorination reagent to obtain a chlorinated xanthene intermediate; 3) mixing active amine and the chlorinated xanthene intermediate, and performing substitution reaction under the action of alkali to obtain the novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste has the advantages of being high in solubility, good in thermal stability and high in contrast ratio.

The invention relates to a colored curable resin composition, a color filter, a display device and a solid-state imaging device. The purpose of the present invention is to provide a colored curable resin composition capable of producing a color filter having improved color separability from green light. [Solution] The colored curable resin composition according to the present invention is characterized by containing a colorant, a resin, a polymerizable compound, and a polymerization initiator, the colorant including xanthene pigment, purple pigment, and blue pigment, and the content of the xanthene pigment is 8-45 parts by mass per 100 parts by mass of the blue pigment.

An object of the present invention is to provide a coloring curable resin composition capable of producing a color filter having improved color separation properties from green light.SOLUTION: The coloring curable resin composition of the present invention contains a colorant, a resin, a polymerizable compound, and a polymerization initiator, in which the colorant includes a xanthene colorant, a violet pigment, and a blue pigment, and the content of the xanthene colorant is 8 to 45 parts by mass with respect to 100 parts by mass of the blue pigment.SELECTED DRAWING: None

Provided are compositions and methods relating to antimicrobial compositions. In particular, the disclosure relates to antimicrobial compositions providing a xanthene dye and component that acts in synergy with the xanthene dye and methods of using antimicrobial compositions for treatment of biological tissues. In particular, the component acting in synergy with the xanthene dye is a fungicide or fungistatic molecule.

The present invention relates to: a photocatalyst comprising methane monooxygenase (MMO) hydroxylase (MMOH), a halogenated xanthene dye as a light harvester, and MMOB as a catalyst conductivity enhancer; and a use thereof for methanol production, and exhibits catalytic activity superior to that in a natural biocatalytic reaction using MMO-based enzymes.

Provided is a xanthene dye excellent in solubility, clarity, and heat resistance. 【Solution means】A xanthene dye represented by general formula (1). TIFF2026065145000049.tif15169 [In formula (1), Xn 1 , Xn 2 each independently represents a group represented by formula (2), Ar represents an aromatic hydrocarbon group or a heterocyclic group, An represents an anion, a represents an integer of 1 to 3, and b represents an integer of 0 to 6. When b is 2 or more, the plurality of An may be the same or different. R 1 ~R 4 each independently represents H, an alkyl group, or an aromatic hydrocarbon group. R 5 , R 6 each independently represents H, a halogen atom, an alkyl group, or an aromatic hydrocarbon group, and R 1 ~R 6 may be bonded to each other to form a ring with adjacent groups. The wavy line represents the bonding part with Ar.] TIFF2026065145000050.tif30169

Provided are compositions and methods relating to antimicrobial compositions. In particular, the disclosure relates to antimicrobial compositions providing a xanthene dye and component that acts in synergy with the xanthene dye and methods of using antimicrobial compositions for treatment of biological tissues. In particular, the component acting in synergy with the xanthene dye is a fungicide or fungistatic molecule.

A cosmetic composition is provided. The cosmetic composition includes a continuous fatty phase including one or more fatty substances. It further includes a colorant dispersed in the fatty phase. The colorant includes a substrate; at least one xanthene dye; and a siloxane surface treatment. The cosmetic composition is essentially free of piperidinol compounds. The cosmetic composition is substantially free of water. Methods are also provided.

The invention relates to the technical field of afterglow imaging, and discloses a preparation method and application of a near-infrared two-region chemiluminescent material based on a xanthene dye skeleton, and the molecular structure of an afterglow probe is shown as the following formula 8-F. According to the invention, a fluorescent skeleton is constructed to solve many challenges of current cancer diagnosis and treatment, including early diagnosis sensitivity, treatment tolerance, relapse, metastasis and the like. In cancer therapy, traditional chemotherapeutic drugs may be distributed in various tissues and organs in the body, resulting in serious toxic and side effects. After the afterglow probe is excited, the organic molecules transfer energy to the luminous group through the conjugated structure, so that the luminous group can emit light in NIR-II, and specifically react with a tumor microenvironment (TME) to generate ROS so as to carry out PDT treatment, and the fluorescence is kept in a closed state in normal tissues.

A cosmetic composition is provided. The cosmetic composition includes a continuous fatty phase including one or more fatty substances. It further includes a colorant dispersed in the fatty phase. The colorant includes a substrate; at least one xanthene dye; and a siloxane surface treatment. The cosmetic composition is essentially free of piperidinol compounds. The cosmetic composition is substantially free of water. Methods are also provided.

An object of the present invention is to provide a coloring curable resin composition capable of producing a color filter having improved color separation properties from green light.SOLUTION: The colored curable resin composition of the present invention contains a colorant, a resin, a polymerizable compound, and a polymerization initiator, wherein the colorant contains a xanthene dye (a1) having a maximum absorption wavelength of 510 nm or more and not more than 535 nm, a xanthene dye (a2) having a maximum absorption wavelength of more than 535 nm and not more than 570 nm, and a blue pigment (a3).SELECTED DRAWING: None

The invention relates to the technical field of near-infrared second-region organic dyes, in particular to an exosome-encapsulated near-infrared second-region xanthene J aggregate as well as a preparation method and application thereof. The near-infrared two-region xanthene J aggregate encapsulated by the exosome is composed of a targeted drug modified exosome and a near-infrared two-region xanthene dye LY, it is found that LY can form a stable J aggregate through self-assembly, the J aggregate is encapsulated in a targeted modified exosome, and an efficient and stable near-infrared two-region J aggregate nano diagnosis and treatment system can be obtained. The application of the drug is expected to solve the problems of incomplete surgical resection, obstruction of drug delivery by blood-brain barrier, poor traditional treatment effect and the like in current glioma treatment.

The invention discloses an azaanthracene near-infrared fluorescent probe and an application of the azaanthracene near-infrared fluorescent probe. The chemical molecular formula of the fluorescent probe is shown as a formula I. According to the present invention, xanthene dye DDAO is adopted as a basic structural skeleton, an electron-donating group is adjusted through a molecular engineering strategy, and the D-A type fluorescent probe having advantages of small molecular structure, emission wavelength in a near infrared region, large Stokes shift, strong light stability, low cytotoxicity, good water solubility and the like is constructed based on the TICT effect; the method is suitable for no-wash specific long-time dynamic monitoring of the lipid droplets. The fluorescent probe molecule provided by the invention has a TICT (Torsional Intramolecular Charge Transfer) characteristic, has strong fluorescence in small polarity such as petroleum ether, and hardly emits fluorescence in an aqueous solution, so that background fluorescence interference is reduced, and lipid droplet imaging sensitivity and accuracy are improved.

The present invention provides a negative resist composition for manufacturing a color filter having high transmittance of light having a wavelength of 440 nm. The negative resist composition of the present invention comprises a colorant containing a xanthene dye and a resin. The cured film formed from the negative resist composition satisfies the following condition 1. [Condition 1] The cured film has an absorption maximum in the wavelength range of 500 nm to 580 nm, and when the transmittance at the wavelength is set to 5%, the transmittance at a wavelength of 440 nm is 80% or more, and the transmittance at a wavelength of 620 nm is 80% or more.

To provide a colored curable composition from which a film excellent in suppression of hue change before and after alkali development and suppression of hue change due to heating after alkali development is obtained, and to provide a film, a color filter, a solid-state imaging device or an image display device.SOLUTION: The colored curable composition contains a colorant containing a xanthene colorant multimer, a compound A represented by general formula (1), a resin which is a compound different from the xanthene colorant multimer and the compound A and has an acid group, a polymerizable compound, and a photopolymerization initiator.SELECTED DRAWING: None

The invention belongs to the field of color photoresists, and particularly provides a dimeric xanthene dye for blue photoresist color paste and a synthesis method of the dimeric xanthene dye. The dimeric xanthene dye for the blue photoresist color paste is prepared by acidifying an acid red 52 dye, then carrying out sulfonyl chlorination reaction with a chlorination reagent, and then carrying out dimerization reaction with a double-nucleophilic reaction site compound. The prepared dimeric xanthene dye is mixed with blue pigment color paste to prepare blue photoresist color paste, the blue photoresist color paste is used for improving the brightness of the color paste, and the blue photoresist color paste has the advantages of high transparency, high contrast ratio, good dispersity, relatively high covering power, tinting strength and the like, and is good in thermal stability and light stability; the synthesis method provided by the invention is simple, low in cost and easy for large-scale production.

The invention provides a photocurable composition and a preparation method thereof. The photocurable composition comprises the following components in parts by mass: 5-50 parts of alkali-soluble resin, 5-60 parts of a photopolymerizable compound, 1-15 parts of a photoinitiator, 5-70 parts of a coloring agent, a proper amount of an additive and a proper amount of a solvent. According to the photocurable composition prepared by adopting a specific raw material ratio and a preparation method, xanthene dye molecules can be connected into branched chains of acrylate resin through chemical bonds, so that the problems of solubility, mobility and stability of small molecular dyes are fundamentally solved, and the photocurable composition has good heat resistance.

This invention belongs to the field of biomedical technology, specifically relating to a near-infrared oxanthracene dye with tunable structural symmetry, its preparation method, and its application. Its structural formula is shown in formula Ia or Ib. This dye exhibits high quantum yield (up to 79.5%), low dark toxicity and phototoxicity, or, under near-infrared laser irradiation, can effectively produce type I (… 1 O2) and type II (•OH, O2• ‑ Reactive oxygen species can enable precise visualization imaging of mitochondria and achieve highly effective treatment of tumor cells by inducing ferroptosis.

This invention discloses a modified xanthan dye, a pigment dispersion containing the same, and a photocurable composition. The molecular structure of the modified xanthan dye is shown in (I): wherein R1, R2, R3, and R4 are independently selected from hydrogen atoms, saturated aliphatic chain groups with 1-18 carbon atoms partially substituted or unsubstituted by oxygen and / or nitrogen atoms, or aromatic groups with 6-12 carbon atoms; R5 and R6 are independently selected from hydrogen atoms and alkyl groups with 1-3 carbon atoms; X is a hydrogen atom, methyl, carboxyl, or sulfonic acid group; n represents an integer from 4 to 16. This modified xanthan dye exhibits excellent lightfastness, heat resistance, and solvent resistance, and improves the dispersion performance of pigment dispersions containing it, thereby enhancing the tolerance of photocurable compositions containing this modified xanthan dye.

To provide a xanthene dye excellent in solubility and coloring power for a coating film. To provide a coloring composition containing the dye, a colorant for a color filter, and a color filter. 【Solution means】 A xanthene dye represented by the following general formula (1). TIFF2026104991000040.tif33165 [In the formula, R 1 ~R 4 each independently represents H, an alkyl group, or an aromatic hydrocarbon group, and at least one of R 1 , R 2 contains an alkylene group, and a group having an amino group or an ammonium group at the terminal of R 1 or R 2 . R 5 , R 6 each independently represents H, a halogen atom, an alkyl group, or an aromatic hydrocarbon group. R 7 represents -SO3 - , -CO2 - , a sulfonyl group, a sulfonamide group, a carbonyl group, an amide group, etc., and R 7 may contain a cation. n represents an integer from 0 to 5. An represents an anion, x represents an integer from 1 to 3, and y represents an integer from 0 to 6. ]

The invention relates to a colored curable resin composition, a color filter, a display device and a solid-state imaging device. The purpose of the present invention is to provide a colored curable resin composition capable of producing a color filter having improved color separability from green light. [Solution] The colored curable resin composition according to the present invention is characterized by containing a colorant, a resin, a polymerizable compound, and a polymerization initiator, and the colorant contains a xanthene pigment (a1) having a maximum absorption wavelength of 510 nm or more and 535 nm or less, a xanthene pigment (a2) having a maximum absorption wavelength of more than 535 nm and 570 nm or less, and a blue pigment (a3).

The invention relates to the technical field of organic dyes, in particular to a novel dimeric xanthene dye for blue photoresist color paste and a synthesis method of the novel dimeric xanthene dye. The invention relates to a synthesis method of a novel dimeric xanthene dye for blue photoresist color paste, which comprises the following steps: 1) taking rigid cyclic amine as a nucleophilic reagent, and carrying out aromatic nucleophilic substitution reaction with chlorinated xanthene to obtain a xanthene intermediate; 2) reacting the xanthene intermediate with a chlorination reagent, and performing post-treatment to obtain a chlorinated intermediate; and 3) carrying out dimerization reaction on the chlorinated intermediate and the double nucleophilic reaction site compound to finally obtain the novel dimeric xanthene dye for the blue photoresist color paste. The novel dimeric xanthene dye for the blue photoresist color paste has excellent colored light performance, is suitable for mixed or dye blue photoresist color paste, can remarkably improve the brightness, transparency, contrast ratio and dispersity of the color paste, and has high covering power, strong tinting strength and good thermal stability and light stability at the same time. In addition, the synthesis method is simple in process, low in cost and suitable for industrial production.

The present invention relates to a colored photosensitive resin composition, a color filter produced therefrom, and an image display device. The colored photosensitive resin composition comprises (A) a colorant, (B) an alkali-soluble resin, (C) a photopolymerizable compound, (D) a photopolymerization initiator, (E) an additive, and (F) a solvent, characterized in that the (A) colorant comprises (A1) a crystalline xanthene dye and (A2) a blue pigment, and the (B) alkali-soluble resin is a thermally reactive alkali-soluble resin. The colored photosensitive resin composition of the present invention has the characteristics of excellent brightness, improved heat resistance, and suppressed migration.