Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
148results about "Azo dye preparation" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Neutral layer polymer composition for directed self assembly and processes thereof
ActiveUS8835581B2Low costReliable incorporationAzo dye preparationMonoazo dyesNitrogenCombinatorial chemistry
The present invention relates to a novel polymeric composition comprising a novel polymer having two or more repeat units and a terminus having the structure (1):wherein R1 represents a C1-C20 substituted or unsubstituted alkyl group, w is a number from 1-8, X is oxygen (O) or nitrogen (N), and Rd is a reactive group. The invention also relates to a process for forming a pattern using the novel polymeric composition. The invention further relates to a process of making the novel polymer.
Owner:MERCK PATENT GMBH
Reaction method using microreactor
InactiveUS20050036921A1Control reaction rateMinimize any troubleAzo dye preparationFlow mixersMicroreactorEngineering
In a reaction caused by using a microreactor which provides a plurality of supply routes in communication with one reaction channel as a multicylindrical structure having a co-axis and causes a plurality of fluids L1, L2, L3 to flow together in the reaction channel via the respective fluid supply routes, whereby these fluids L1, L2, L3 are coaxially laminated and caused to flow as laminar flows whose sections orthogonal to the co-axis are annular and the fluids are diffused together in a normal direction of contact interfaces thereof to cause the reaction, among the plurality of laminated fluids L1, L2, L3, at least one fluid is constituted by a fluid not participating in the reaction of other fluids.
Owner:FUJIFILM CORP +1
Visible light absorbers for ophthalmic lens materials
Azo compounds that block visible light are disclosed. These light absorbers are particularly suitable for use in intraocular lens materials.
Owner:ALCON INC
Visible light absorbers for ophthalmic lens materials
Azo compounds that block visible light are disclosed. These light absorbers are particularly suitable for use in intraocular lens materials.
Owner:ALCON INC
Pigment dispersants and their use
ActiveUS7347894B2Improve suppression propertiesReduce resultAzo dye preparationTransportation and packagingPhotochemistryPigment
Owner:DAINICHISEIKA COLOR & CHEM MFG CO LTD
Monoazo compound as well as preparation method and application thereof
ActiveCN102603572AImprove washing fastnessGood fastness to sublimationAzo dye preparationPreparation by cyanide reactionColour fastnessDisperse dye
The invention relates to the technical field of disperse dyes and provides a monoazo compound as well as a preparation method and application thereof for the purposes of solving the problems that dyeing is carried out on fabrics such as terylene and superfine fiber so as to obtain very deep color and excellent washing resistance fastness and sublimation resistance fastness. The monoazo compound has a general formula (I). When the monoazo compound is dyed on fabrics such as terylene and superfine fiber, the obtained fabrics have very deep color, excellent washing resistance fastness and sublimation resistance fastness, friction resistance color fastness and light fastness and good color fixation rate in dip dyeing. The monoazo compound provided by the invention is also suitable for compounding of mixed tones with other disperse dyes.
Owner:HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
Azo type disperse dyes in use for coloration in acid-alkalinity bath
An ethyl dispersion pigment containing cyanoxethyl is made from diazocomposition of benzene ring or heterocyclic ring amine, -H-CH3 and -CH-C2H5. The process for preparing the pigment includes diazotizing diazomposition, reacting on diazotized material with coupling composition to produce dispersion pigment. The produced pigment can be single structure and also can be synthetized directly to be mixed structure or reprepared to be mixed structure when it is sold as commodity with colours from red orange to blue.
Owner:浙江昱泰染化科技有限公司
Ophthalmic lens materials containing chromophores that absorb both UV and short wavelength visible light
Chromophores that absorb both UV and short wavelength visible light are disclosed. The chromophores are particularly suitable for use in intraocular lens materials.
Owner:ALCON INC
Novel organic-inorganic silica particles, method of preparing the same, and hard coating composition containing the same
ActiveUS20120135216A1Increase resistanceAzo dye preparationMaterial nanotechnologySilica particleWear resistance
The present invention relates to novel organic-inorganic silica particles, a preparation method thereof, and a hard coating composition containing the same, and more specifically, to organic-inorganic silica particles wherein an initiator is chemically bonded to hydroxyl groups (—OH) on the surface of the silica particles, a preparation method thereof, and a hard coating composition containing the same. A hard coating film with excellent abrasion resistance, scratch resistance and the like can be prepared by using the hard coating composition containing the organic-inorganic silica particles according to the present invention.
Owner:LG HAUSYS LTD
Weather-resistant azo-dyes, preparation and use thereof
InactiveCN101280118ADyeing speed is fastHigh dyeing rateAzo dye preparationMonoazo dyesEnergy transferHindered amine light stabilizers
The invention relates to a weather-resistant azo dye with the following general formula (I) and the preparation method and application. The invention introduces chlorinated triazine groups based on common azo dyes and then after a series of condensation reactions, a novel azo dye is obtained. The azo dye contains multiple chromogenic groups, wherein, hindered amine can absorb the infrared; DSD acid (that is, 4,4'-diaminostilbene-2,2'-disulfonic acid) can absorb the ultraviolet rays; therefore, the azo dye has good light-resistant and weather-resistant properties and can be used alone or with other dyes; the azo dye can be used in textiles, paper, leather, wood, ink-jet printing ink and other aspects, which is also a good energy transfer agent. As a result of a variety of functional groups, the azo dye of the invention has better weather-resistant performance than common azo dyes.
Owner:上海汇友精密化学品有限公司
Water-soluble dye and preparation method and application thereof
The invention discloses water-soluble dye with the general formula (1) shown in the description. The water-soluble dye can be prepared into a powder shape, a liquid state dissolved into water or a liquid state dissolved in alcohol solvents, or can be separated used or mixed with other dyes to use. The water-soluble dye containing the general formula (1) can be used for dyeing and printing cotton, mucilage glue, silk, linen, synthetic fiber, blended fabric and the like or can be widely used for coloring leather, paper and wood. Compared with conditions of general X-type and K-type reactive dye, the water-soluble dye has the advantages that a dyeing material with higher luster and excellent color fastness can be obtained, the stability of the dye is greatly improved, the application range of the dye is widened and the varieties of the dye are enriched. The water-soluble dye with the general formula (1) can be also used for preparing ink-jet printing ink. The invention also discloses a plurality of preparation methods for the water-soluble dye.
Owner:上海汇友精密化学品有限公司
Production process of azoic disperse dye
InactiveCN1754920AIncrease concentrationReduce the amount requiredAzo dye preparationCoupling reaction in azo dyesDisperse dyeAniline
The invention discloses a preparation technique for azo disperse dyes, which comprises preparing esterification solution and coupling reacting. Wherein, the esterification solution comprises mainly one of: 1) 3-N, N-acetoxylated amido-4-methoxyl-1-acetanilide; 2) N- cyanoethyl-N-acetoxylated amido aniline; 3) 3-N, N-acetoxylated amido-1-acetanilide. This invention increases concentration of esterification solution from 65% to about 90% to decrease COD in waste water more than 60%, and has high efficiency.
Owner:ZHEJIANG LONGSHENG GROUP
Asymmetric azo complex dye and manufacturing method thereof
The invention relates to asymmetric azo dye and a manufacturing method thereof. The asymmetric azo dye comprises an azo compound which is taken as the main body, and the azo compound and a compound which is synthesized by para amino azo naphthalene sulfonate, hydroxyphenol and diazo onium naphthol compound form a chrome complex so as to obtain acidic black dye with high fastness and high dyeing force.
Owner:ABLE ADVANCED CHEM
Method for manufacturing charge control agent
ActiveUS20050084786A1Excellent charge controlling propertyHigh purityAzo dye preparationDevelopersIon exchangeCharge control
A method for manufacturing a charge control agent comprising steps of: an initiative chelating step by reacting with a monoazo compound represented by the following chemical formula [1](in the chemical formula [1], —Ar1— and —Ar2— are aromatic groups) and a metal chelating agent to prepare an azo-type metal complex salt intermediate; a subsequent ion-exchanging step by reacting with the azo-type metal complex salt intermediate and an ammonium counter ion forming agent including an inorganic ammonium salt and aqueous ammonia to prepare an azo-type metal complex salt having an ammonium ion of a counter ion represented by the following chemical formula [2](in the chemical formula [2], —Ar1— and —Ar2 are the same as the chemical formula [1]; M is a trivalent metal; B+ is a cation except an ammonium ion; n is from 0.70 to 1.00).
Owner:ORIENT CHEM INDS
K-type active light-resistant red azo dye and preparation method thereof
InactiveCN101914302AHigh color fixing rateImprove light fastnessAzo dye preparationBrilliant RedHindered amine light stabilizers
The invention discloses a K-type active light-resistant red azo dye and a preparation method thereof. A molecular structure of the active dye comprises hindered amine groups. Compared with active brilliant red K-G, the dyeing property and various wet processing fastness of the active dye are close to that of the active brilliant red K-G, the active dye and the active brilliant red K-G both have higher dying rate and higher fixing rate, but the sunlight resistance fastness of the active dye is obviously increased.
Owner:QINGDAO UNIV
Colors for chromogenic ihc and ish staining with multi-dye quinone methide and tyramide conjugates
ActiveUS20190187130A1Enhanced signalReduces overall staining concentrationMethine/polymethine dyesBiological testingQuinone methideChromogenic
Disclosed herein are novel chromogenic conjugates, the conjugates comprising at least two detectable moieties.
Owner:VENTANA MEDICAL SYST INC
Triazabutadienes as additives in adhesive systems
Triazabutadiene molecules that provide adhesive functionality, e.g., triazabutadiene molecules as underwater adhesives or water-reactive adhesives. The triazabutadiene molecules mask an aryl diazonium ion, a highly reactive chemical functionality. Once unmasked, e.g., in water, the diazonium species is adapted to react with an electron rich aryl ring that can undergo diazonium chemistry (e.g., phenol species, resorcinol species, etc.). Triazabutadienes can be used as additives in adhesive systems such as but not limited to epoxy adhesive systems.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA
Photoresponsive ionic organic compound, method of producing the same, and photoresponsive carbon nanotube dispersant comprising said ionic organic compound
ActiveUS20120217151A1Limitation in dispersibilityDispersed conveniently and effectivelyAzo dye preparationMaterial nanotechnologyHydrogen atomChemical compound
A photoresponsive ionic organic compound of formula (I); a method of producing the same; a photoresponsive carbon nanotube (CNT) dispersant; a CNT dispersion containing the dispersant; and a method of separating a CNT from the dispersion:wherein R1, R2, and R3 each represent a hydrogen atom or an alkyl group; A represents —CH— or a nitrogen atom; X represents an anion; and n is a number to give a charge of −2 to nX.
Owner:NAT INST OF ADVANCED IND SCI & TECH
Synthesis methods of sunset yellow hapten and artificial antigen
The invention relates to synthesis methods of a sunset yellow hapten and an artificial antigen, and particularly discloses synthesis methods of the sunset yellow hapten and an antigen thereof, belonging to the technical fields of organic chemistry and immunochemistry. A disodium salt of sunset yellow is converted to sulfonyl chloride, then sulfonyl chloride reacts with different amino-substituted carboxylic ester hydrochlorides, and hydrolysis is carried out to get rid of methyl ester protection so as to obtain the sunset yellow hapten. Then the carbodiimide method is adopted to couple the sunset yellow hapten with carrier protein bovine serum albumin (BSA) to obtain the complete antigen of sunset yellow, which can be used to prepare the corresponding antibody and can provide a technical foundation for the establishment of the relevant enzyme immunoassay method.
Owner:江苏南通维立科化工有限公司 +1
Reaction method using microreactor
Owner:FUJIFILM CORP +1
Sodium salt of an azo derivative of 5-aminosalicylic acid
The present invention relates to the sodium salt of (Z)-2-hydroxy-5-[[4-[3-[4-[(2-methyl-1H-imidazo[4,5-c]pyridin-1-yl)methyl]-1-piperidinyl]-3-oxo-1-phenyl-1-propenyl]phenyl]azo]benzoic acid, as well as to the pharmaceutical compositions containing it, to a procedure for its preparation and to its use. for the manufacture of medicaments for the treatment or prevention of inflammatory bowel disease.
Owner:PALAU PHARMA
Preparation method of cationic blue dye
ActiveCN110724395ALow costSimple processAzo dye preparationMonoazo dyesSocial benefitsBiochemical engineering
The invention belongs to the technical field of dyes, and particularly relates to a preparation method of a cationic blue dye. According to the invention, a compound II is used as a diazonium component and a compound I is used as a coupling component for synthesizing the cationic blue dye for the first time; and the method has the advantages of simple process, environmental friendliness, high product purity, high yield and the like. The results of multiple production experiments with scales not below pilot tests show that mother liquor (such as mother liquor in steps 2, 3 and 4) in the reaction process can be cyclically used 6-8 times without treatment, so the amount of high-salt, high-COD and high-chroma wastewater is greatly reduced, a working environment is effectively improved while product yield is further increased and reaction reagent cost is saved, and the product still keeps high purity; and thus, product quality is guaranteed, production cost is reduced, and obvious economicbenefits, social benefits and environmental benefits are produced.
Owner:HENAN CHEM IND RES INST +1
Ophthalmic lens materials containing chromophores that absorb both UV and short wavelength visible light
Chromophores that absorb both UV and short wavelength visible light are disclosed. The chromophores are particularly suitable for use in intraocular lens materials.
Owner:ALCON INC
Coupling catalyst and process using the same
InactiveUS7041856B2Good choiceReadily availableAzo dye preparationOrganic compound preparationArylLeaving group
There are disclosed a process for producing a coupling compound of formula (1):(Y—)(n−1)R1—R2—(R1)(n′−1), (1)wherein R1 and R2 independently representa substituted or unsubstituted aryl group,which process is characterized by reactingan unsaturated organic compound of formula (2):n′(R1X1n) (2)wherein n, n′, and R1 are the same as defined above, andX1 is the same or different and independently represents a leaving group and bonded with a sp2 carbon atom of R1 group,with a boron compound of formula (3):m{R2(BX22)n′} (3)wherein R2 and n′ are the same as defined above,X2 represents a hydroxy group, an alkoxy group, in the presence of a catalyst containing(A) a nickel compound, and(B) a nitrogen-containing cyclic compound, and the catalyst.
Owner:SUMITOMO CHEM CO LTD
Azo structure carboxylic amide type dyes for polylactic acid fiber dyeing and preparation method thereof
InactiveCN101423671AThe synthesis process is simpleHigh affinityAzo dye preparationMonoazo dyesFiberTO-18
The invention discloses a carboxamide type dye which has an azo structure and is used for dyeing polylactic acid fibre. The molecular structure contains a carboxamide group; the general structural formula of the dye is shown above. In the formula, D is a chromogen with the azo structure; m is 1 or 2; X is H or n-CnH2n+1; Y is H, n-CnH2n+1, C6H12 or C6H6; and in the n-CnH2n+1, n meets the following condition: n is more than or equal to 1 and less than or equal to 18,,and n is an integer. The invention simultaneously discloses a method for preparing the dye. The dye is used to improve the rate of dye-uptake and color fastness on the PLA fibre.
Owner:ZHEJIANG SCI-TECH UNIV
Polar dyes
The present invention relates to novel polar fluorescent and quenchers dyes, and minor groove binder with enhanced polarity. The present invention further relates to methods of preparing oligonucleotide probes labeled with polar arsonate dyes under the condition of automated synthesis and method of using such probes.
Owner:CEPHEID INC
Method for producing direct yellow blend dye
The invention relates to a method for producing a direct yellow blend dye. The method includes the steps of conducting a diazo reaction, conducting a coupled reaction, conducting a first condensation reaction, conducting a second condensation reaction, conducting a third condensation reaction and conducting spray drying on a product to obtain the direct yellow blend dye. According to the method, on the premise of not changing the quality standards of an original product, the spray drying cleaner production mode is adopted, waste residuals and process wastewater are not generated, the technological process is simplified, investment of equipment is reduced, production efficiency is improved by 10 percent, the yield of the products is improved by 3 percent, the production cost is saved by 10 percent, and the method is an environmentally friendly dye production method.
Owner:内蒙古美力坚科技化工有限公司
Diazo dye and its black ink composition
ActiveCN102766347APrint image quality is highGood light fastnessAzo dye preparationInksStructural formulaPhotochemistry
The invention discloses a diazo dye compound with improved application characteristics, excellent performance and low synthesis cost, a black dye thereof and a black ink composition. The diazo dye compound has a structural formula (I) or (II). In the formula, R1 is -SO3M or -COOM, R2 is -NO2, -H, -SO2CH2CH2Z and the like, Z is selected from -OH, -N(CH2CH2OH)2, -NHCH2CH2OH, -SCH2COOM, -SCH2CH2CH2SO3M, -NHCH2CH2COOM, -NHCH2COOM and the like, and M is positive ion. The black dye and the black ink composition have high light resistance, gas resistance and water resistance, and can be used to print high-quality image prints.
Owner:ZHUHAI NINESTAR MANAGEMENT CO LTD
Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method
ActiveUS20150376413A1Improve reaction efficiencyAzo dye preparationPigmenting treatmentCarboxylic acidPigment
Owner:CANON KK
Manufacture method of UV-resistant (ultraviolet-resistant) dye and corresponding coating-type dye polarizer
ActiveCN107916017ASolve reliabilitySolve the problem of longevityAzo dye preparationPolarising elementsUltravioletPolarizer
The invention provides a manufacture method of UV-resistant dye, comprising: providing an azo dye structure; providing a UV-resistant modifying group; and using the UV-resistant modifying group, in aliquid crystal dye mixed solution, to perform UV-resistant modification on the azo dye structure so as to obtain UV-resistant modified azo dye. The invention also provides a coating-type dye polarizer. The manufacture method of the UV-resistant dye and the corresponding coating-type dye polarizer have the advantage that by coating the coating-type dye polarizer with UV-resistant dye capable of absorbing UV, the coating-type dye polarizer is avoided being influenced by UV irradiation.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
Popular searches
Photosensitive materials Photomechanical apparatus Originals for photomechanical treatment Organic chemistry methods Carboxylic acid esters preparation Chemical/physical/physico-chemical microreactors Mixer accessories Liquid solutions solvent extraction Photographic processes Photothermographic systems
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com