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152 results about "Triphenylmethane" patented technology
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Triphenylmethane, or triphenyl methane, is the hydrocarbon with the formula (C₆H₅)₃CH. This colorless solid is soluble in nonpolar organic solvents and not in water. Triphenylmethane is the basic skeleton of many synthetic dyes called triarylmethane dyes, many of them are pH indicators, and some display fluorescence. A trityl group in organic chemistry is a triphenylmethyl group Ph₃C, e.g. triphenylmethyl chloride (trityl chloride) and the triphenylmethyl radical (trityl radical).
Method for detecting residual quantity of multiple alkaline drugs in animal derived food
The invention relates to the fields of analytical chemistry and food safety, in particular to a method for detecting the residual quantity of multiple alkaline drugs in animal derived food. Based on the vortex mixed extracting of acetonitrile, isopropanol and citric acid buffer solutions, the purification of a hydrophilic polystyrene-divinylbenzene solid phase extraction column and a cation exchange solid phase extraction column and the liquid phase chromatography-mass spectra determination, the method can detect the residual quantity of multiple alkaline drugs in pork, pork liver, eggs, shrimps and milk, such as beta-receptor agonists,sulfonamides, benzodiazepines, nitroimidazoles, benzimidazoles and triphenylmethanes. The method has the advantages of simple operation, fast and accurate detection and high efficiency.
Owner:SHANGHAI ANPEL SCI INSTR +1
Nonwoven blend with electret fiber
InactiveUS6926961B2Inorganic material magnetismLoose filtering material filtersFiberAmmonium compounds
Owner:INVISTA NORTH AMERICA S A R L
Positive resist composition and method of forming resist pattern
InactiveUS20090317745A1Reduce roughnessPhotosensitive materialsPhotomechanical exposure apparatusTriphenylmethaneResist
Provided are a novel positive resist composition that includes a low molecular weight material as a base material component, and a method of forming a resist pattern using the positive resist composition.A positive resist composition including: a base material component (A) that exhibits increased solubility in an alkali developing solution under the action of acid; and an acid generator component (B) that generates acid upon exposure, wherein the base material component (A) comprises a compound (A1) in which either a portion of, or all of, the hydrogen atoms of hydroxyl groups (—OH) within a phenolic compound (I) described below have been substituted with a group containing an acid dissociable, dissolution inhibiting group:the phenolic compound (I) including 4 triphenylmethane structures, and a tetravalent linking moiety that links the 4 triphenylmethane structures, wherein at least one of the 4 triphenylmethane structures has at least one phenolic hydroxyl group.
Owner:TOKYO OHKA KOGYO CO LTD
Organic transistor
InactiveUS7126153B2High Power Handling CapabilityReduce manufacturing costTransistorElectroluminescent light sourcesVinyl carbazolePhthalocyanine
An organic transistor is capable of emitting light at high luminescence efficiency, operating at high speed, handling large electric power, and can be manufactured at low cost. The organic transistor includes an organic semiconductor layer between a source electrode and a drain electrode, and gate electrodes shaped like a comb or a mesh, which are provided at intervals approximately in the central part of the organic semiconductor layer approximately parallel to the source electrode and the drain electrode. The organic semiconductor layer consists of an electric field luminescent organic semiconductor material such as compounds of naphthalene, anthracene, tetracene, pentacene, hexacene, a phthalocyanine system compound, an azo system compound, a perylene system compound, a triphenylmethane compound, a stilbene compound, poly N-vinyl carbazole, and poly vinyl pyrene.
Owner:RICOH KK
Spontaneously color changing type thermal sensitive recording medium
A thermal sensitive recording medium which has a feature to change the color of recorded pattern slowly and spontaneously after development, and the recorded pattern which has several days passed can be easily distinguished from that of just after development. Said thermal sensitive recording medium contains 4-hydroxybenzoic acid ester represented by general formula (I) as a color developer and uses triphenylmethane-based leuco dye and reddish color developing leuco dye whose maximum absorption wave length is 450 DIFFERENCE 560 nm as a dye precursor. In this formula, R represents unsubstituted or substituted lower alkyl group of carbon number 1-7 or benzyl group.
Owner:NIPPON PAPER IND CO LTD
Secondary battery having a non-aqueous electrolyte
InactiveUS6682856B1High activityImprove reliabilityNon-aqueous electrolyte accumulatorsFinal product manufactureTriphenylmethaneSolvent
A non-aqueous electrolyte secondary battery which comprises a positive electrode containing a lithium-containing oxide; a negative electrode containing a material capable of absorbing and releasing lithium; and a non-aqueous electrolyte containing a non-aqueous solvent containing at least one non-cyclic ester and which is excellent in storage stability at high temperatures is provided by adding an oxidation resistance improving agent such as triphenylmethane, tetraphehylmethane or the like.
Owner:GK BRIDGE 1
Methods of making novel colorants for use within ink systems
InactiveUS6479647B1Excellent spectral strengthDesired propertyMonoazo dyesOrganic chemistrySolubilityWax
Novel addition products of hydroxyl-protecting groups (such as isocyanates) with oxyalkylene-substituted intermediates, such as poly(oxyalkylenated) aniline compounds, for the eventual production of substituted, and substantially pure, colorants, particularly diazo and triphenylmethane derivatives, through the reaction of such intermediates with certain reactants are provided. These new colorants exhibit improved wax and / or oil solubility and high purity, particularly due to the inability of certain impurities to deleteriously react with the protected hydroxyl groups of either the intermediate or the colorant during and / or after formation thereof. A method for producing such novel colorants through utilization of these novel substantially pure colorant intermediates is also provided.
Owner:MILLIKEN & CO
Colorant material, and water dispersion, ink, ink tank, recording unit, recording apparatus and recording method using the same
InactiveUS20050188894A1High definitionHigh fastnessOrganic chemistryMeasurement apparatus componentsWater insolublePolymer chemistry
There is provided a colorant material comprising a compound represented by at least one of the following general formulas (1) and (2) as a first colorant compound and at least one of a water insoluble triphenylmethane compound and a water insoluble xanthene compound as a second colorant compound. The colorant material is useful as a recording material for ink-jet printing or the like.
Owner:CANON KK
Organic transistor
InactiveUS20060243971A1High luminous efficiencyLow costElectroluminescent light sourcesSolid-state devicesVinyl carbazolePhthalocyanine
An organic transistor is capable of emitting light at high luminescence efficiency, operating at high speed, handling large electric power, and can be manufactured at low cost. The organic transistor includes an organic semiconductor layer between a source electrode and a drain electrode, and gate electrodes shaped like a comb or a mesh, which are provided at intervals approximately in the central part of the organic semiconductor layer approximately parallel to the source electrode and the drain electrode. The organic semiconductor layer consists of an electric field luminescent organic semiconductor material such as compounds of naphthalene, anthracene, tetracene, pentacene, hexacene, a phthalocyanine system compound, an azo system compound, a perylene system compound, a triphenylmethane compound, a stilbene compound, poly N-vinyl carbazole, and poly vinyl pyrene.
Owner:RICOH KK
Laccase gene as well as encoded protein and application thereof
The invention belongs to the field of biotechnology, and discloses a laccase gene as well as an encoded protein and an application thereof. The open reading frame sequence of the laccase gene fmb-L103 is shown in SEQ ID NO. 1. The amino acid sequence of the protein encoded by the laccase gene fmb-L103 disclosed by the invention is shown in SEQ ID NO. 2. The laccase gene fmb-L103 disclosed by the invention is applied to decoloration for triphenlmethane dyes. The inventor clones from the selected dead bacillus vallismortis fmb-L103 with a spore laccase activity to obtain a novel prokaryotic laccase gene fmb-L103, and realizes the heterologous efficient expression of escherichia colli expression host bacteria. The recombinase fmb-L103 can be used for efficiently catalyzing the degradation of the triphenlmethane dyes of malachite green, brilliant green and aniline blue.
Owner:NANJING AGRICULTURAL UNIVERSITY
Cyclodextrin supramolecular polymer/Fe3O4 magnetic nanoparticle complex
InactiveCN106853363AImprove adsorption capacityEasy to prepareOther chemical processesWater contaminantsMalachite green stainX-ray
The invention provides a cyclodextrin supramolecular polymer / Fe3O4 magnetic nanoparticle complex. The complex is prepared by the following steps: firstly, crosslinking beta-cyclodextrin with pyromellitic dianhydride to synthesize a cyclodextrin supramolecular polymer (beta-CDSP); coprecipitating the beta-CDSP and FeCl3.6H2O and FeCl2.4H2O under an alkaline condition by a one-pot method, so as to obtain the complex. An X-ray diffraction (XRD) method, a transmission electron microscope (TEM) method, a Fourier transform infrared spectroscopy (FTIR) method and a thermogravimetric analysis (TGA) method are applied for characterizing to verify that the beta-CDSP is grafted to Fe3O4 magnetic nanoparticles. The complex has the advantages of low synthesis cost, environment friendliness, no toxicity, abundant hydroxide radicals, free carboxyl and better magnetic properties, and can be used as an adsorption material for adsorption cation type triphenylmethane dye pollutants; malachite green serves as a model molecule for study on adsorption properties, and results show that the complex has a good adsorption effect on the malachite green and has a potential application prospect on the aspect of the adsorption material of environmental pollutants.
Owner:SHANXI UNIV
Death bacillus vallismortis for producing spore laccase and application of death bacillus vallismortis
InactiveCN102757909ACatalytic degradationReduce environmental problemsBacteriaMicroorganism based processesBiotechnologyBacterial strain
The invention belongs to the field of biotechnology, and relates to a death bacillus vallismortis bacterial strain fmb-103 for producing spore laccase. The death bacillus vallismortis bacterial strain fmb-103 for producing the spore laccase is preserved in the China general microbiological culture collection center (CGMCC), the preservation date is on June 8, 2012, and the preservation number is CGMCC No.6198. The death bacillus vallismortis bacterial strain fmb-103 the preservation number of which is CGMCC No.6198 can produce the spore laccase, and can be applied in degradation triphenylmethane dyestuff.
Owner:NANJING AGRICULTURAL UNIVERSITY
Iron ion loaded activated carbon fiber composite cathode, preparation method and application thereof
InactiveCN104386784APrevent the occurrenceNo secondary pollutionWater treatment compoundsWater contaminantsFiberSludge
The invention relates to an iron ion loaded activated carbon fiber composite cathode, a preparation method and application thereof. The composite cathode includes iron ion loaded activated carbon fiber. The iron ion loaded activated carbon fiber composite cathode is applied to treatment of humic acid-containing wastewater and triphenylmethane dyes in printing and dyeing wastewater by an Electro-Fenton technique. The method for preparation of the iron ion loaded activated carbon fiber composite cathode includes an inner layer adsorption process and a precipitation process. Iron ions are loaded on activated carbon fiber, the treatment process is simplified, production of sludge is completely eradicated, and no secondary pollution exists; the iron ions loaded on the activated carbon fiber can react with H2O2 generated by electroreduction of dissolved oxygen on the composite cathode surface, thus reinforcing reaction on the composite cathode surface and strengthening the reaction efficiency; iron ions and acidic groups on the surface of the activated carbon fiber undergo inner layer adsorption, so that the iron ions are not easy to fall off during use, and the life of the composite cathode is increased. After repeated use of the composite cathode 4 times, the decolorization rate of the target pollutant is still above 93%.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Application of thiospirolactone in intracellular hypochloric acid detection
InactiveCN101870864AHigh sensitivityImprove permeabilityOrganic chemistryFluorescence/phosphorescenceFluorescenceCytotoxicity
The invention relates to a fluorescence detection method and provides a fluorescent probe which has high sensitivity and high selectivity and is used for detecting intracellular hypochloric acid and an application of thiospirolactone in intracellular hypochloric acid detection. The structure of the fluorescent probe for detecting the intracellular hypochloric acid is a triphenylmethane fluorescent probe with a Xanthone ring parent structure; and the fluorescent probes of the thiospirolactone all adopt corresponding spirolactones as raw materials. The thiospirolactone has high-sensitivity fluorescent response characteristics on hypochloric acid, and when being used in the fluorescent probe for detecting the intracellular hypochloric acid, the selectivity is high. The probe has strong lightstability, no illumination self oxidation, rapid response to an aimed compound, good cell permeability and no strong cytotoxicity, and a product formed by combining the fluorescent probe and the aimed compound has strong photobleaching resistance. The thiospirolactone used for detecting the hypochloric acid of the aimed compound has high sensitivity and strong specificity and other active oxygen in cells has no interference on the detection.
Owner:XIAMEN UNIV
Environmentally friendly chromotropic paint with warning function and preparation method thereof
InactiveCN106905833ARealize monitoringEffective peracid-base changeAnti-corrosive paintsPolyurea/polyurethane coatingsEnvironmental resistanceTriphenylmethane
The invention provides an environmental friendly chromotropic paint with warning function and a preparation method thereof. The paint comprises the following components in parts by weight: 10-30 parts of a polyurethane resin material, 20-40 parts of ethanol, 0.01-0.03 parts of an antishrinking agent, and 0.03-2 parts of triphenylmethane dyes or fluorane dyes. The preparation method comprises the following steps: adding polyurethane resin in triphenylmethane dyes or fluorane dyes dissolved by absolute ethyl alcohol, thoroughly dissolving the materials for dissolution; adding the antishrinking agent into a mixed solution, and stirring the materials to obtain the product. The most important feature of the paint is that the paint can effectively warn the superacid or superbasic environment which is harmful to human health, can keep the air circulation of working environment in time, and takes active protective measurements. The paint has the advantages of simple formula, low cost and easy production with a large scale.
Owner:SHANXI UNIV
Ultra performance liquid chromatography (UPLC)-triple quadrupole/composite linear ion trap mass spectrometry detection method of triphenylmethanes and metabolites of triphenylmethanes in water bodies
ActiveCN103439445AImprove scan performanceReliable detection methodComponent separationMaterial analysis by electric/magnetic meansMetaboliteEcological environment
The invention belongs to the technical field of environmental monitoring and in particular relates to an ultra performance liquid chromatography (UPLC)-triple quadrupole / composite linear ion trap mass spectrometry detection method of triphenylmethanes and metabolites of triphenylmethanes in water bodies. Currently, the detection methods which can be used for simultaneously detecting five substances, including MG, LMG, CV, LCV and BG, and have detection limits up to ng level are not available yet. The method has the beneficial effects that a device adopts composite mass spectra, is an advanced novel mass spectrograph and adopts quadrupole / linear ion trap technology, thus greatly improving the MS / MS scanning capacity; meanwhile, the advanced novel mass spectrograph is connected with an UPLC, so that a simple, quick and sensitive method can be established; five triphenylmethanes and metabolites thereof in water bodies are simultaneously determined, thus providing a reliable detection method for further analyzing and evaluating the pollution conditions in the ecological environments.
Owner:JIANGSU ENVIRONMENTAL MONITORING CENT
Polyimide-epoxy type electrical insulating paint and preparation method thereof
The invention relates to a polyimide-epoxy type electrical insulating paint and a preparation method thereof. The polyimide-epoxy type electrical insulating paint comprises the components: a maleimide polyimide resin solution, N, N, N', N', O-5-penta-glycidyl-4,4'-diamido-4''-hydroxyl triphenylmethane, N, N, N', N'-4-tetra-glycidyl-4,4'-diamido-diphenyl methane and 2-ethyl-4- methylimidazole which have the weight ratio of 100: (80-100): (80-100):(10-30). The preparation method comprises the steps of: evenly stirring and mixing all the components at the room temperature to obtain the paint. The polyimide-epoxy type electrical insulating paint is moderate in viscosity, good in using technological efficiency, excellent in adhesive property for metal base materials (such as iron, copper, aluminium alloy, glass and ceramics), simple in preparation technology and convenient in operation and reaction raw material source; and the preparation process can be completed in general equipment and is beneficial to realization of industrial production.
Owner:DONGHUA UNIV +1
Rhodotorula mucilaginosa and application thereof in degradation and decoloring of dyes and production of carotenoid
ActiveCN103409328AEfficient and significant degradation of decolorization effectFungiMicroorganism based processesChemistryRhodotorula mucilaginosa
The invention discloses a Rhodotorula mucilaginosa and the application thereof in the degradation and decoloring of dyes and the production of carotenoid. The Preservation No. of the Rhodotorula mucilaginosa JM401 is CCTCC NO: M 2013088; the saccharomycete can be used for carrying out degradation and decoloring on a triphenlmethane dye: and centrifugally collecting activated seed solution bacteria and vaccinating the bacteria to a decoloring medium containing the dye, and carrying out shake cultivation on the obtained product for 2-12 h at a temperature of 25-37 DEG C and a pH value of 4.0-7.5 so as to obtain a decoloring culture solution; and the saccharomycete can be used for producing carotenoids by fermentation: taking an activated seed solution and vaccinating the activated seed solution to a fermentation medium, and carrying out fermentation cultivation on the obtained product for 36-48 h at a temperature of 25-32 DEG C and a pH value of 5.0-7.0 so as to obtain fermentation liquor containing the carotenoids. The Rhodotorula mucilaginosa disclosed by the invention simultaneously has the abilities of carrying out efficient decoloring on triphenlmethane dyes and carrying out high-yield production on carotenoids, therefore, the Rhodotorula mucilaginosa has an extremely broad application prospect in a field to which the Rhodotorula mucilaginosa belongs.
Owner:JIANGNAN UNIV
Thermochromic polypropylene composition and its preparation method and use
The invention discloses a thermochromic polypropylene composition. The thermochromic polypropylene composition comprises, by weight, 95-99 parts of polypropylene resin and 0.5-3 parts of thermochromicmicrocapsules. The core of the thermochromic microcapsule is prepared from a triphenylmethane-metal complex and the wall of the thermochromic microcapsule is synthesized from formaldehyde and melamine through polymerization according to a mole ratio of 2.5 / 1 to 3 / 1. The preparation method of the thermochromic microcapsule comprises that formaldehyde and melamine undergo an addition reaction at pHof 7.5-8.5 to produce a methylol melamine prepolymer, a triphenylmethane-metal complex is dispersed in a sodium dodecyl sulfate aqueous solution with a concentration of 0.2-1.0 wt%, the methylol melamine prepolymer is added into the solution, the pH is adjusted to 5.5-6.5 so that a microcapsule emulsion is obtained, the microcapsule emulsion undergoes a reaction at 80-90 DEG C for 3h, and the reaction product is washed, is subjected to suction filtration and is dried so that the thermochromic microcapsule is obtained. The thermochromic polypropylene composition can resist heat in a long termand can be widely used in automobile dashboards, accessory dashboards, seats, door plates, bumpers or stand columns.
Owner:KINGFA SCI & TECH CO LTD +1
High-efficiency antifoaming agent and preparation method thereof
InactiveCN103263789APhysiologically inertHigh temperature resistantFoam dispersion/preventionAlkalinityTriphenylmethane
The invention relates to a high-efficiency antifoaming agent and a preparation method thereof. The high-efficiency antifoaming agent is mainly composed of fluorosilicon oil, triphenylmethane, a nonylphenol polyoxyethylene ether emulsifier, deionized water and a thickening agent. The high-efficiency antifoaming agent has characteristics of strong antifoaming efficacy, low surface tension, low volatile, no toxicity, no pollution and physiological inertness, and also is resistant to high temperature and strong alkalinity.
Owner:张家港市一达水泥混凝土外加剂有限公司
Methods of making magenta colorants for ink systems
InactiveUS6452020B1Excellent spectral strengthLow hue errorOrganic chemistryOrganic dyesSolubilityWax
Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and / or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and / or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
Owner:MILLIKEN & CO
Colorant compositions
Colorant compositions are useful for a wide variety of product applications. For example, colorants are used in tinting of polymers, providing colors to aqueous solution(s), and affording color to solid or semi-solid products such as detergents. Disclosed herein are colorant compositions having a triphenylmethane (“TPM”) structure having improved stability to alkaline conditions. Thus, the colorant compositions resist decolorization, even at relatively high pH levels.
Owner:MILLIKEN & CO
Manufacturing method for fibre-reinforced composite material, heat resistant material using said composite material, and heat resistant structural material using said composite material
Owner:MITSUBISHI CHEM CORP
Malachite green artificial antigen and antibody, and preparation method and application thereof
The invention provides preparation of malachite green artificial antigen and antibody, and relates to preparation of artificial hapten, artificial antigen and antibody of a triphenylmethane chemical substance malachite green. By adopting the preparation method, the problems of complex process, high cost and low analysis speed of the traditional physical and chemical analysis method are overcome. A simple, convenient, quick, sensitive and accurate enzyme immunoassay is provided. The method comprises the following steps: taking 4-[bi(4-dimethylamino)phenyl]methyl benzoic acid and 5-{4-[bi-(4-dimethylamino)phenyl]methyl} phenyl valeric acid as haptens to be respectively connected with carrier proteins such as hemocyanin, ovalbumin and the like to synthetize artificial antigen; carrying out animal immunization, taking blood, separating out antiserum, and purifying, so as to prepare the antibody. The antibody is stable, and has good specificity and sensitivity, and a good application prospect, and can be applied to fast immunodetection of the malachite green.
Owner:深圳市微宇藻业科技有限公司
Bacillus subtilis ZNXH1 sourced bacterial laccase gene, bacterial laccase and application thereof
The invention provides a bacillus subtilis ZNXH1 sourced bacterial laccase gene, bacterial laccase and application thereof, belongs to the technical field of biology, and particularly relates to a bacillus subtilis ZNXH1 sourced bacterial laccase gene cahh1, bacterial laccase CAHH1 expressed by the gene and application of the bacterial laccase CAHH1 in the fields of textile industry, environmental protection and the like. Compared with traditional laccase, the bacterial laccase CAHH1 has the advantages of remarkable application stability and broad spectrum effect, mainly including that (1) the bacterial laccase CAHH1 has better pH stability in a range of 3-9; (2) the bacterial laccase CAHH1 has better temperature stability in a range of 30-90 DEG C; and (3) the bacterial laccase CAHH1 has a strong decolorizing effect on indigo dye, azo dye and triphenylmethane dye. The bacterial laccase can be used for decolorizing industrial dye, has wide application prospects, can easily realize engineering preparation and has higher practical values.
Owner:JILIN UNIV
Ablative heat-insulating coating and preparation method thereof
ActiveCN101845273AFast vulcanizationEasy constructionFuselage insulationCoatingsVulcanizationAntioxidant
The invention provides an ablative heat-insulating coating and a preparation method thereof. The ablative heat-insulating coating comprises a base material, a filler and an auxiliary material based on weight percent. The base material is room temperature vulcanization block methyl silicone rubber and accounts for 68 to 73 weight percent; the filler comprises 13 to 14 weight percent of quartz powder and 8 to 15 weight percent of cork powder; and the auxiliary material is a plasticizer and an antioxidant and accounts for 4 to 5 weight percent. The auxiliary material is a mixture of the following components in percentage by weight: 0.3 to 0.5 percent of triphenylmethane, 0.3 to 0.5 percent of benzophenone, 0.4 to 0.6 percent of di-tert-butyl- p-cresol, 1.5 to 1.7 percent of dibutyl phthalate, and 1.5 to 1.7 percent of di-n-octyl ortho-phthalate. The quartz powder has the granularity of 200 meshes and has the purity of 99.8 percent; and the cork powder has the granularity of more than 80 meshes and has the moisture content of less than 10 percent. The ablative heat-insulating coating is coated on the surface of a device after being diluted by gasoline, and a layer of aluminum powder is sprayed on the outer surface of the coating. The ablative heat-insulating coating has the characteristics of low cost, convenient construction, good heat-insulating performance, strong adhesive force, and long service life.
Owner:THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
Resin composition, resin varnish, prepreg, metal-clad laminate, and printed wiring board
ActiveUS20140182903A1Improve heat resistanceExcellent dielectric propertiesGroup 5/15 element organic compoundsSynthetic resin layered productsEpoxyIntrinsic viscosity
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Epoxy resin compsn. and its application
An epoxy resin composition, a prepreg prepared by using the composition and a layered plate comprising the prepreg are provided, to prevent the precipitation of an epoxy resin from a solution during storage, to improve the stability of the varnish used in the preparation of a prepreg and to enhance of the heat resistance of a layered plate. The epoxy resin composition comprises an epoxy resin A represented by the formula 2 which is obtained by reacting a triphenylmethane-type phenol resin containing 30-70 wt% of 4,4'4'-trihydroxy(triphenylmethane) represented by the formula 1 and epichlorohydrin or [beta]-methyl epihalohydrin. In the formula 1, R1 to R5 are independently H or a C1-C6 alkyl group; an n is an integer of 0-0.4 on the average, and in the formula 2, R'1 to R'5 are independently H or a C1-C6 alkyl group; an m is an integer of 0-0.7 on the average. Preferably the triphenylmethane-type phenol resin comprises 40-60 wt% of 4,4'4'-trihydroxy(triphenylmethane), 25-50 wt% of 4,4'2'-trihydroxy(triphenylmethane), and 3-20 wt% of 4,2'2'-trihydroxy(triphenylmethane), and is prepared from p-hydroxybenzaldehyde and phenol in the presence of an acid catalyst.
Owner:PRINTEC CORP
Rhodococcus and method for degrading and decoloring triphenylmethane dyes by utilizing rhodococcus
ActiveCN102618462AGood decolorization effectGood decolorizationBacteriaMicroorganism based processesResistSolid component
There is disclosed a chemically amplified positive resist composition to form a chemically amplified resist film to be used in a lithography, wherein the chemically amplified positive resist composition comprises at least, (A) a base resin, insoluble or poorly soluble in an alkaline solution, having a repeating unit whose phenolic ydroxyl group is protected by a tertiary alkyl group, while soluble in an alkaline solution when the tertiary alkyl group is removed; (B) an acid generator; (C) a basic component; and (D) an organic solvent, and a solid component concentration is controlled so that the chemically amplified resist film having the film thickness of 10 to 100 nm is obtained by a spin coating method. There can be provided, in a lithography, a chemically amplified positive resist composition giving a high resolution with a suppressed LER deterioration caused by film-thinning at the time of forming a chemically amplified resist film with the film thickness of 10 to 100 nm, and a resist patterning process using the same.
Owner:JIANGNAN UNIV
Positive resist composition and method of forming resist pattern
Owner:TOKYO OHKA KOGYO CO LTD
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