55results about "Benzene azine dyes" patented technology

The invention relates to a thermal activation delayed fluorescent material with a general formula of the structure shown as the formula (I) or the formula (II). D is one of phenoxazinyl, phenothizainyl, 9,9-dimethyl acridine, 9-methyl phenazinyl, 9-phenyl phenazinyl, 4-phenoxazinyl-1-phenyl, 4-phenothizainyl-1-phenyl, 4-(9,9-dimethyl)acridinyl-1-phenyl, 4-(9-methyl)-phenazinyl-1-phenyl, 4-(9-phenyl)phenazinyl-1-phenyl and 3,5-bis-carbazolyl-1-phenyl. The invention further relates to an organic electroluminescent device which comprises a light-emitting layer, and luminescent dye of the light-emitting layer is the thermal activation delayed fluorescent material. The singlet state-triplet state energy gap (delta EST) of the thermal activation delayed fluorescent material is very small, triplet state excitors can be converted into singlet state excitors through inverse intersystem crossing (RIST) to emit light, and the efficiency and stability of an OLED device can be improved. The formula is shown in the description.

A hair-dyeing agent, which contains at least one compound represented by formula (1) or (2) as a dye: wherein X1 and X2 each are an oxygen atom, nitrogen atom, sulfur atom, or dialkylmethylene group; R1, R2, R3, R4, R5, R6, R7, and R8 each independently are a hydrogen atom or substituent; M1 and M2 each are a counter ion to balance the charge of the molecule; and m1 and m2 each are a number of 0 or more necessary to neutralize the charge of the molecule.

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.

The invention discloses a method for directly producing water soluble aniline black, and relates to the preparation of an azine acid dye. The method particularly comprises the following steps of: 1, performing condensation reaction on aniline and nitrobenzene in the presence of iron trichloride serving as a catalyst; 2, naturally cooling the condensed mixture to normal temperature; 3, crushing the naturally cooled mixture and directly putting the crushed mixture into sulfuric acid for sulfonation reaction; 4, placing the sulfonated mixture in cold water for separation; 5, performing solid-liquid separation and washing on the separated mixture and then performing dehydration; 6, neutralizing the dehydrated mixture with sodium hydroxide or sodium carbonate; and 7, drying the neutralized mixture so as to obtain the granular water soluble aniline black. The method for directly producing the water soluble aniline black of the invention simplifies the processing steps, shortens the process period, saves a large amount of energy sources and labor resources, reduces the waste water discharge and greatly improves the labor efficiency and production efficiency.

A compound represented by the following general formula is useful as a light emitting material. X represents an oxygen atom or a sulfur atom. R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 is a carbazolyl group, etc.

A compound represented by the following general formula is useful as a light emitting material. X represents an oxygen atom or a sulfur atom. R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 is a carbazolyl group, etc.

A compound represented by the general formula (1) is useful as a light emitting material. In the general formula (1), Ar1 to Ar3 represent an aryl group, provided that Ar2 and Ar3 are the same as each other, and at least one of Ar1 to Ar3 represents an aryl group substituted with a group represented by the general formula (2). In the general formula (2), R1 to R8 represent a hydrogen atom or a substituent; Z represents O, S, R9—N, (R10) (R11) C, or (R12) (R13)Si; and R9 to R13 each independently represent a hydrogen atom or a substituent.

A granulated colorant as a granulation product of a powdery nigrosine dye, that has a bulk density of 0.4 to 0.7 g / ml and a hardness of 1 to 20 N. A high-concentration master batch obtained by blending a granulated colorant and a thermoplastic resin, which comprises 25 to 100 parts by weight of a nigrosine dye in the granulated colorant per 100 parts by weight of the thermoplastic resin. A colored composition comprising a granulated colorant or high-concentration master batch and a thermoplastic resin or thermoplastic elastomer.

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.

An electronic device containing a polymer of Formula (I), Formula (II), or mixtures, or isomers thereof wherein each R 1 through R 10 is independently hydrogen, alkyl, aryl, alkoxy, halogen, arylalkyl, cyano, or nitro providing that R 1 and R 2 exclude halogen, nitro and cyano; a and b represent the number of rings; and n represents the number of repeating groups or moieties.

Provided are: an aniline black that contains no harmful substances such as chromium or copper, exhibits an excellent black color, and has a high resistance; and a black resin composition, aqueous dispersion, and solvent dispersion that are colored with said aniline black and exhibit high dispersivity. The sulfur content of this aniline black is 0.2% to 6.0% by weight, and the average major-axis length of the primary particles of said aniline black is 0.05 to 0.80 [mu]m.

A black-colored polyamide composition is provided which comprises a chromium-containing azo dye in the form of a chromium complex and carbon black, and also glass fibers. Production of this polyamide composition and use thereof for the production of black-colored laser-inscribable polyamide moldings are also provided.

The invention relates to a method for producing naphthol AS and recycling wastes. The method comprises the step of transferring a condensation material into an alkali cooking pot to carry out alkali cooking to obtain an alkali cooking matter and a distillate and also comprises the following steps: carrying out vacuum flirtation on the alkali cooking matter to obtain a naphthol AS filter cake and naphthol AS mother liquor; drying the naphthol AS filter cake to obtain naphthol AS; recycling the naphthol AS mother liquor to obtain 2-hydroxy-3-naphthoic acid; recycling the distillate to obtain aniline black. According to method for producing the naphthol AS and recycling the wastes, the 2-hydroxy-3-naphthoic acid with high purity can be obtained from the naphthol AS mother liquor, so that the utilization rate of the raw materials is improved, and the production cost is reduced; the aniline black can also be recycled and prepared from the distillate, so that not only is industrial wastewater treated, but also a new useful pigment is obtained; the quality of the naphthol AS product is also improved, and the enterprise production benefit is improved.

The present invention relates to a plating composition for electrolytic copper deposition, comprising copper ions, halide ions and at least one acid, at least one benzothiazole compound, at least one phenazine dye and at least one ethanediamine derivative. The present invention further concerns the use of above plating composition and a method for electrolytically depositing a copper or copper alloy layer onto at least one surface of a substrate.

The present invention relates to a polyamide composition which is dyed in black, comprising a chromium-containing azo dye in the form of a chromium complex and carbon black and glass fibres, to the production of such a polyamide composition and to the use thereof for producing polyamide moulded bodies which are laser-writable and dyed in black.

The invention relates to a shark repellant and a preparation method thereof, belonging to the technical field of chemical engineering. The shark repellant is prepared by adopting the steps: sulfonating oil-soluble nigrosin and fuming sulphuric acid to generate a sulfonation product; performing a dilution and neutralization process on the sulfonation product, deep phreatic water, calcium carbonate and triisobutyl carbonate, then mixing a production obtained through suction filtration, concentration and drying with cupric acetate according to a certain ratio and grinding to obtain the shark repellant. The shark repellant is powder, can be rapidly dissolved an dispersed into seawater, and releases a black-blue solution with a flavor of a copper acetate chemical, a shark can rapidly leave when in decomposed solution, thus a protection function of repelling the shark for life saving is achieved. The shark repellant is widely applicable for underwater operations, marine fishing, deep sea training and the like due to a large range of a protection region.

A granulated colorant as a granulation product of a powdery nigrosine dye, that has a bulk density of 0.4 to 0.7 g / ml and a hardness of 1 to 20 N. A high-concentration master batch obtained by blending a granulated colorant and a thermoplastic resin, which comprises 25 to 100 parts by weight of a nigrosine dye in the granulated colorant per 100 parts by weight of the thermoplastic resin. A colored composition comprising a granulated colorant or high-concentration master batch and a thermoplastic resin or thermoplastic elastomer.

The invention belongs to the technical field of nigrosine and particularly relates to a recycling method of nigrosine mud iron, comprising: 1) beating wet nigrosine mud iron with water; 2) adding concentrated sulfuric acid into the beaten iron mud, heating, and stirring to allow reacting; 3) after reaction, filtering while the reacted liquid is hot, recycling filtrate, washing filter cake with water, drying, and recycling as plastic ink; 4) using the filtrate recycled in step 3) to treat phenyl pyrazolone mother liquid waste. Iron mud is subjected to one-step simple treatment so as to arrive at effective utilization, so that waste is turned into wealth. The recycling method has the advantages that original hazardous waste can be turned into a product and a catalyst to arrive at cyclic economization; treatment cost for each ton of hazardous waste is about 5000 Yuan; after treatment via the method, the cost of sulfuric acid consumed per ton of iron mud is about 500 Yuan, the recycled product is 7300-8100 Yuan, and the profit may reach 6800-7600 Yuan.

The invention relates to a recycling production process for nigrosine. The recycling production process comprises the following steps: 1) condensing aniline and nitrobenzene in a condensation reaction kettle to obtain a nigrosine product containing excessive aniline; 2) acidifying the nigrosine product in an acidification reaction kettle, and centrifuging through a centrifugal machine to obtain nigrosine and aniline-containing wastewater; 3) mixing alkaline liquor and the aniline-containing wastewater through a static mixer to obtain a mixture, feeding the mixture at the tower-top of a rectifying tower, introducing steam from the tower-bottom, performing steam stripping on the aniline-containing wastewater, and processing in a sewage plant after exchanging heat of the tower-bottom wastewater through a heat exchanger; 4) introducing a gas-phase mixture of tower-top aniline water into a lithium bromide set condenser to condense; introducing 12-DEGC circulating water into the lithium bromide set condenser to form 7-DEG C circulating water for refrigerating, and converting into 12-DEG C circulating water for use after refrigerating; 5) changing the condensed gas-phase mixture into a liquid-phase mixture, condensing through the condenser, layering through a layering device, and performing the operation of step 3) on a little aniline in an upper-layer water phase in a circulating manner, and performing operation of the step 1) on lower-layer aniline phase in the circulating manner.

The invention discloses a production process of water-based velvet aniline black, which comprises the following steps: p1, adding aniline solid waste, an acidic compound and an oxidant into a reactionkettle, and carrying out oxidation reaction to obtain a reaction mixture; p2, carrying out reduced pressure distillation on the reaction mixture to obtain a distillation mixture; p3, carrying out condensation reaction to obtain an aniline black mixture containing excessive aniline; p4, carrying out an acidification reaction, and then carrying out centrifugal filtration to obtain an aniline blackproduct and wastewater; p5, obtaining an aniline black solution; p6, adding 25%-35% by mass of PU resin into the aniline black solution, uniformly stirring, and standing for 20-30 minutes to obtain astanding solution; p7, weighing 20%-25% of fluff powder, putting the fluff powder into the standing solution, and stirring at a constant speed until the fluff powder is fully dispersed to obtain a mixed solution; and p8, obtaining the velvet aniline black. According to the invention, by treating and recycling wastewater, the environment-friendly effect is greatly improved, and production, popularization and application are facilitated.

A compound represented by the general formula (1) is useful as a light emitting material. In the general formula (1), Ar1 to Ar3 represent an aryl group, provided that Ar2 and Ar3 are the same as each other, and at least one of Ar1 to Ar3 represents an aryl group substituted with a group represented by the general formula (2). In the general formula (2), R1 to R8 represent a hydrogen atom or a substituent; Z represents O, S, R9—N, (R10) (R11)C, or (R12) (R13)Si; and R9 to R13 each independently represent a hydrogen atom or a substituent.

A non-pyrophoric nigrosine dye and a method of production thereof. A nigrosine dye wherein B−A≦0.04% by weight if, in analysis using a gas chromatograph apparatus equipped with a glass-made sample injection port, the aniline content of the sample determined at a temperature of 200° C. at the sample injection port is written as A% by weight, and the aniline content of the sample determined at a temperature of 260° C. at the sample injection port is written as B% by weight. A method of producing a nigrosine dye which comprises a heat treatment of a neutralized nigrosine base.