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176 results about "Monomethyl ether" patented technology

Organic amine composite absorbent for carbon capture and application thereof

The invention discloses an organic amine composite absorbent for carbon capture and application thereof, and belongs to the technical field of carbon dioxide capture, the organic amine composite absorbent for carbon capture is in a solution state and comprises the following components: a main agent, an auxiliary agent, an accelerant A, an accelerant B and water; wherein the mass ratio of the main agent to the auxiliary agent is 2: (1-2); the mass ratio of the auxiliary agent to the accelerant A is 2: (1-2); the mass ratio of the accelerant A to the accelerant B is 2: (1-2); the total mass concentration of the main agent, the auxiliary agent, the accelerant A and the accelerant B in the organic amine composite absorbent for carbon capture is 30-40 wt%; the main agent is selected from N-methyldiethanolamine or N, N-diethyl ethanolamine, the auxiliary agent is selected from piperazine or hydroxyethyl ethylenediamine, the accelerant A is selected from triethylene glycol monomethyl ether and / or ethylene glycol monomethyl ether, and the accelerant B is selected from ethyl butyl ether and / or isobutyl ether. The organic amine composite absorbent for carbon capture has a wide application prospect in removal of carbon dioxide in flue gas.
Owner:ZHEJIANG UNIV +1

Heavy-duty water-based epoxy glass flake anticorrosive paint and preparation method thereof

The invention discloses a heavy-duty waterborne epoxy glass flake anticorrosive coating and a preparation method thereof, and belongs to the field of anticorrosive coatings. Wherein the component A is composed of a water-based phenolic epoxy emulsion, a water-based epoxy resin dispersion, glass flakes, an anti-rust pigment, titanium dioxide, a wetting dispersant, a coalescing agent, a silane coupling agent, a rheological agent, a base material wetting agent, an anti-flash-rust agent and water; the component B consists of a cardanol modified phenolic aldehyde amine water-based curing agent, a modified aliphatic amine water-based curing agent, a modified polyamide water-based curing agent, propylene glycol monomethyl ether and water; the coating is good in constructability, can be self-dried at normal temperature, has the technical advantages of low VOC (volatile organic compound) content, strong adhesive force, excellent water resistance, boiling resistance and chemical resistance, excellent corrosion resistance and the like, and is wide in raw material source and simple in preparation process.
Owner:JIANGSU SOBUTE NEW MATERIALS CO LTD +1

High-strength durable pervious concrete and preparation method thereof

The invention discloses high-strength durable pervious concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw materials in parts by weight: 160 to 220 parts of cement, 1200 to 1600 parts of coarse aggregate, 170 to 230 parts of fine sand, 160 to 200 parts of water, 3 to 4.5 parts of polycarboxylate superplasticizer, 5 to 15 parts of silica fume, 1 to 3 parts of polypropylene fiber, 8 to 12 parts of modified nano cellulose and 5 to 7 parts of flexibilizer, wherein the flexibilizer comprises modified graphene oxide, propylene glycol monomethyl ether and polyisoprene rubber. The interface compatibility is enhanced through the modified nanocellulose, microcracks are reduced, the bonding strength of aggregate and cement is improved, and the compressive strength is improved; the toughening agent component endows the concrete with toughness and durability, the toughening agent component and the toughening agent component have a synergistic effect, and the concrete prepared by mixing the various raw materials has excellent mechanical properties and durability on the basis of good water permeability, and has a wide market application prospect.
Owner:LINYI UNIVERSITY

Colchicine external preparation with high intradermal residual quantity and percutaneous transmittance as well as preparation method and application of colchicine external preparation

The invention discloses a colchicine external preparation with high intradermal residual quantity and percutaneous transmittance as well as a preparation method and application thereof, and belongs to the technical field of pharmaceutical preparations. The invention provides a colchicine external preparation with high intradermal residue and transdermal transmittance. The colchicine external preparation comprises: a) colchicine or a pharmaceutically acceptable salt thereof; b) a penetration enhancer; c) pharmaceutically acceptable excipients and / or excipients; the penetration enhancer is at least one of polyglycerol oleate or isosorbide dimethyl ether. The drug loading capacity and the percutaneous transmittance of the colchicine external preparation disclosed by the invention are remarkably improved. When polyglycerol oleate is selected as a penetration enhancer to prepare colchicine gel, the intradermal retention volume can reach 358.08 micrograms within 20 hours. When isosorbide monomethyl ether is selected as a penetration enhancer to prepare ethosome gel, the accumulated penetration amount can reach 106.87 mu g / cm < 2 >, and the intradermal residual amount can reach 90.58 mu g or above.
Owner:HANGZHOU ZEXI PHARMACEUTICAL TECHNOLOGY CO LTD

Composite plasticizer, silicon nitride green body, preparation method of silicon nitride green body and silicon nitride ceramic chip

The invention relates to a composite plasticizer, a silicon nitride green body, a preparation method of the silicon nitride green body and a silicon nitride ceramic chip, and relates to the technical field of ceramic materials. The first plasticizer comprises at least one of a glycol polymer and glycol polymer monomethyl ether, the glycol polymer is HO-(CaH2aO) b-H, the glycol polymer monomethyl ether is HO-(CaH2aO) b-CH3, a is greater than or equal to 2 and less than or equal to 6, and the molecular weight is 2000-10000. The molecular formula of the second plasticizer is R1-(CmH2mO) n-R2, m is greater than or equal to 2 and less than or equal to 6, m * n is greater than or equal to 2 and less than or equal to 30, R1 is one of hydroxyl, alkoxy or carboxylic ester group, and R2 is one of hydrogen, alkyl or alkyl carbonyl. The composite plasticizer provided by the embodiment of the invention can replace a phthalate plasticizer in related technologies, and reduces environmental and health risks while improving the plasticizing effect.
Owner:BYD CO LTD +1

Propylene glycol monomethyl ether acetate composition

Propylene glycol 1-monomethyl ether 2-acetate, Acetic acid, Propionic acid, Water, A propylene glycol monomethyl ether acetate composition comprising: The content of the propionic acid is 2 ppm or more and 30 ppm or less based on 100% by mass of the propylene glycol monomethyl ether acetate composition, the sum of the contents of the acetic acid and the propionic acid is 5 ppm or more and 80 ppm or less with respect to 100% by mass of the propylene glycol monomethyl ether acetate composition; A propylene glycol monomethyl ether acetate composition, wherein the water content is 17 ppm or more and 250 ppm or less, based on 100 mass % of the propylene glycol monomethyl ether acetate composition.
Owner:KH NEOCHEM CO LTD

Construction method of specific chromatogram of pinus tabulaeformis knot formula granules, specific chromatogram and application of specific chromatogram

The invention provides a construction method of a specific chromatogram of pinus tabulaeformis nodule formula granules, the specific chromatogram and application of the specific chromatogram. The construction method comprises the following steps: (1) preparing the pinus tabulaeformis nodule formula granules into a test solution; preparing the pinus tabulaeformis knot reference medicinal material into a reference medicinal material reference solution; preparing a silver pinocembrin monomethyl ether reference substance into a reference substance solution; and (2) respectively carrying out ultra-high performance liquid chromatography detection on the test solution, the reference substance solution of the reference medicinal material and the reference substance solution of the reference substance, and obtaining the specific chromatogram of the pinus tabulaeformis knot formula granules according to detection. According to the specific chromatogram constructed by the method provided by the invention, the specific identification of the pinus tabulaeformis formula granules is enhanced, the pinus tabulaeformis medicinal material base can be effectively identified, and a support is provided for ensuring the singleness of the source of the pinus tabulaeformis formula granules medicinal material base. The specific chromatogram constructed by the invention can comprehensively reflect the characteristic peak information of the sample, and the method is stable, high in precision and better in reproducibility.
Owner:BEIJING KANGRENTANG PHARMA

Stable-structure Karst catalyst for synthesis of silane modified polyether

The invention relates to the field of Karstedt catalysts, and discloses a stable-structure Karstedt catalyst for silane modified polyether synthesis, and the stable-structure Karstedt catalyst is prepared from the following raw materials in parts by weight: 2-4 parts of a Karstedt catalyst, 5-8 parts of a polyether siloxane block copolymer, 1-3 parts of nano silicon dioxide, 0.5-1.5 parts of triphenylphosphine, 20-25 parts of propylene glycol monomethyl ether and 0.5-1.0 part of an organosiloxane coupling agent. A polyether siloxane block copolymer is introduced into a Karstedt Catalyst system, and a flexible coating layer is formed outside a catalytic center by utilizing molecular compatibility of a silicon-oxygen chain segment of the polyether siloxane block copolymer and a platinum ligand, so that the exposure degree of the platinum center is remarkably reduced, interference of moisture and polar impurities in air is effectively inhibited, and the catalytic activity of the catalyst is improved. Therefore, the oxidation resistance and the storage stability of the catalyst are improved.
Owner:NANJING QINGQI NEW MATERIAL TECH CO LTD

Aircraft deicing fluid thickened with super-long-chain polyoxyethylene ether surfactant and method of making

The application discloses a super-long chain (carbon atom number in a hydrophobic tail chain is greater than or equal to 18) polyoxyethylene ether surfactant thickened aircraft deicing and anti-icing liquid and a preparation method. The super-long chain polyoxyethylene ether surfactant thickened aircraft deicing and anti-icing liquid comprises the following components and mass percentages: alcohol 40-69%, deionized water 30-59%, and surfactant 0.2-2.0%, wherein the surfactant is a polyoxyethylene monomethyl ether ester of docosanoic acid (C 22 -350) with the following structural formula: The application obtains a deicing and anti-icing liquid which is good in deicing and anti-icing performance and relatively environment-friendly, solves the problems that a polymer-based deicing and anti-icing liquid is easy to be rehydrated to form a hydrated gel on the surface of an aircraft and that a surfactant itself or other additives cause corrosion on the surface of the aircraft under the premise of ensuring the deicing and anti-icing effect.
Owner:SICHUAN UNIV

inkjet ink

To provide an inkjet ink that can be adjusted to an appropriate viscosity range and has excellent properties such as continuous and intermittent printing capabilities. [Solution] An inkjet ink is provided comprising a solvent containing a first solvent which is a glycol ether and a second solvent which is an alcohol having C1 to C3 carbon atoms, and a polyvinyl acetal resin, wherein the ratio of the second solvent to the total amount of the solvent is 5% by mass or more and 50% by mass or less. The first solvent may be propylene glycol monomethyl ether.
Owner:GENERAL CO LTD

Thin-layer Identification Method for Prepared Granules of Turpentine Joint

The present invention provides a thin-layer identification method for pinecone formula granules, comprising: A) taking a test sample, and after pretreatment, obtaining a test solution; taking a pinosylvin monomethyl ether reference substance, and after pretreatment, obtaining a reference solution; B) taking a reference medicinal material of pinecone, and after pretreatment, obtaining a reference medicinal material solution; C) performing thin-layer chromatography detection on the test solution, the reference solution and the reference medicinal material solution, wherein the thin-layer plate is a silica gel G thin-layer plate; the developing agent is toluene-ethyl acetate-glacial acetic acid; D) examining, in the test chromatogram, if spots of the same color appear at the positions corresponding to the reference medicinal material and the reference substance, it is pinecone formula granules. The thin-layer identification chromatographic method for pinecone formula granules established by the present invention uses, as the identification points, the spots of the same color that appear at the positions corresponding to the reference medicinal material and the reference substance by observing the thin-layer chromatogram, so as to quickly and effectively identify pinecone formula granules.
Owner:SICHUAN NEO GREEN PHARMA TECH DEV

Negative electrode binder, and preparation method thereof and application thereof

The present application provides a negative electrode binder and a preparation method thereof and an application thereof. Raw materials for preparing the negative electrode binder include a soft monomer, a hard monomer, a urethane bond-containing acrylate monomer, an emulsifier, an initiator and water; and the urethane bond-containing acrylate monomer is prepared by a reaction of a small molecule diol monomethyl ether and a diisocyanate, and followed by end-capping with an acrylate containing a terminal hydroxyl group. The negative electrode binder has characteristics such as high bonding performance, good flexibility, resistance to electrolyte swelling and high temperature stability.
Owner:SHENZHEN HAOFEI NEW MATERIAL CO LTD +2

Photosensitive resin composition for black resist

To provide a photosensitive resin composition for a black resist which has high light-shielding property and low reflectance, and can suppress occurrence of an aggregate.SOLUTION: A photosensitive resin composition for a black resist contains (A) an unsaturated group-containing photosensitive resin, (B) a photopolymerizable monomer having at least two or more unsaturated bonds, (C) a photopolymerization initiator, (D) at least one kind of light-shielding component selected from a black pigment, a mixed color pigment and a light-shielding material, (E) silica particles, and (F) a solvent. The (F) solvent contains a first solvent which is propylene glycol monomethyl ether acetate, and a second solvent having a relative dielectric constant at 23°C of 10 to 30, and the relative dielectric constant at 23°C of (F) the whole solvent is 8.5 or more.SELECTED DRAWING: None
Owner:NIPPON STEEL CHEM & MATERIAL CO LTD

A tetravalent platinum ester alkyne complex, degradable high polymer, nanomicelle and preparation method and application thereof

The application discloses a tetravalent platinum ester alkyne complex, a degradable high polymer, a nanomicelle and a preparation method and application thereof; the structural formula of the tetravalent platinum ester alkyne complex is shown as formula (I); the preparation method of the degradable high polymer is as follows: the tetravalent platinum ester alkyne complex is prepared first; then the obtained tetravalent platinum ester alkyne complex and diamine and monomethyl ether polyethylene glycol mPEG-NH2 are clicked to obtain a triblock high polymer. The nanomicelle of the degradable high polymer is also disclosed. The tetravalent platinum ester alkyne complex disclosed by the application can specifically respond to reducing substances in a tumor microenvironment, and the enamine ester structure generated by the reaction of the tetravalent platinum ester alkyne complex with diamine also has the property of responding to an acidic environment; the high polymer has mild and simple preparation conditions, the molecular weight can reach 35200, and the platinum drug loading capacity is as high as 33.91%; the nanomicelle can efficiently degrade and release anticancer active drugs in the tumor microenvironment, and has high antitumor activity and low cytotoxicity.
Owner:SOUTH CHINA UNIV OF TECH

Joint production process and application of monoglyceride and diglyceride

The invention provides a joint production process and application of monoglyceride and diglyceride, and belongs to the technical field of organic synthesis. The joint production process comprises the following steps: (1) dissolving a reaction substrate in a certain volume of solvent, and uniformly mixing to obtain a mixed substrate; (2) transferring the mixed substrate in the step (1) into a packed bed enzyme reactor filled with immobilized lipase, and reacting under a vacuum condition to obtain a reaction product; (3) carrying out molecular distillation on the reaction product in the step (2), and separating to obtain monoglyceride and diglyceride; according to the invention, a mixed solution of tert-butyl alcohol and propylene glycol monomethyl ether is used as a solvent, a mixture of microbial lipase-candida rugosa and commercial immobilized lipase Lipozyme RM IM is used as a lipase system, and the ratio and reaction temperature are controlled, so that the mixed enzyme can show better catalytic efficiency and enzyme stability; and the monoglyceride and diglyceride with high yield and high purity are further obtained.
Owner:GUANGZHOU CARDLO BIOCHEM TECH

Radiation-sensitive composition, cured film, and display element

The present invention provides a radiation-sensitive composition, a cured film, and a display element with good storage stability. The radiation-sensitive composition includes: an alkali-soluble resin, a radiation-sensitive compound, propylene glycol monomethyl ether acetate, and allyl methyl ether.
Owner:JICC 02 LTD

Antiviral sponge

The invention belongs to the technical field of sponges, and particularly relates to an antiviral sponge which comprises the following components in parts by weight: 100 parts of polyether polyol and polymer polyol, 30 to 43 parts of toluene diisocynate; 0.6 to 1.0 part of soft foam silicone oil; 0.3 to 0.6 part of an amine catalyst; 0.1 to 0.3 part of a tin catalyst; 2 to 3.3 parts of water; 2.5 to 3.5 parts of an antiviral agent; the antitoxic agent is a mixture of dimethyl tetradecyl [3-(trimethoxysilyl) propyl] ammonium chloride and triethylene glycol monomethyl ether. Compared with the prior art, the sponge material with excellent performance is designed, the polyether polyol, the polymer polyol and the toluene diisocynate are used as main forming components of the sponge material, and the used antiviral component belongs to organosilicon quaternary ammonium salt, so that the antiviral effect can be achieved; the prepared sponge material is comfortable and soft, has good elasticity, also has a strong antiviral effect, has no stimulation to human skin and no carcinogenic risk, and is suitable for medical supplies, hygienic materials and other scenes with high safety requirements.
Owner:DONGGUAN HENGYING SPONGE PROD CO LTD

Nano-composite for tomato virus disease prevention and control and whole-growth-period prevention and control method

PendingCN120787948ABiocideDisinfectantsMonomethyl etherTomato spotted wilt virus
The invention provides a nano-composite for tomato virus disease prevention and control and a whole growth period prevention and control method. The nano-composite comprises an emodin monomethyl ether aqueous solution and a nano-carrier hydrophilic lipophilic diblock polymer HLDP in a mass ratio of 1: (10-20). According to the nanocomposite for tomato virus disease prevention and control, HLDP is added into an emodin methyl ether aqueous solution, and the HLDP and the emodin methyl ether aqueous solution are spontaneously combined through a hydrogen bond and Van der Waals' force, so that the particle size of an emodin methyl ether medicament is remarkably reduced to nanoscale size, and the affinity of the emodin methyl ether medicament to water is increased; the dispersibility in an aqueous solution and the wetting effect of the medicament on leaves are improved; meanwhile, the nano-composite has certain improvement on prevention and treatment effects on tomato spotted wilf virus, and the prevention effect is improved by about 11% compared with that of a single emodin monomethyl ether commodity medicament; compared with daily management measures of a base, the whole-growth-period field control effect of field seed dressing, root dipping and foliage spraying is adopted, and the morbidity of virus diseases is smaller than 10%; the tomato yield increase is promoted.
Owner:CHINA AGRI UNIV

Production system and method of electronic-grade propylene glycol monomethyl ether

The invention relates to a production system and method of electronic-grade propylene glycol monomethyl ether. The production system comprises a primary rectifying tower (1), a secondary rectifying tower (2), a first micro-filter (3), a first anion and cation remover (4), a primary dehydrating tower (5), a secondary dehydrating tower (6) and a nano-filter (7) which are sequentially connected in series in the direction from industrial-grade propylene glycol monomethyl ether feeding to electronic-grade propylene glycol monomethyl ether discharging. And the first-stage dehydrating tower (5) and the second-stage dehydrating tower (6) are connected with an entrainer adding mechanism and an entrainer reflux mechanism. Compared with the prior art, the electronic-grade propylene glycol monomethyl ether production system provided by the invention has the advantages that not only are organic impurities and zwitterions in the product of the system reach the electronic grade, but also the water content in the product also reaches the electronic grade requirement by a method of adding the entrainer, and the yield of the final product is 90% or above.
Owner:PETROCHINA SHANGHAI ADVANCED MATERIALS RESEARCH INSTITUTE CO LTD +1

Photosensitive resin composition, light-shielding film, color filter, touch panel and display device

To provide a photosensitive resin composition from which a light-shielding film having both low reflectivity and good developability can be obtained.SOLUTION: A photosensitive resin composition contains (A) an unsaturated group-containing alkali-soluble resin, (B) a photopolymerizable compound having at least two or more unsaturated bonds, (C) a photopolymerization initiator, (D) at least one light-shielding component selected from the group consisting of a black pigment and a mixed color pigment, (E) inorganic fine particles having a refractive index of 1.10 to 1.80, and (F) a solvent, wherein (F) the solvent contains a first solvent which is propylene glycol monomethyl ether acetate, and a second solvent (excluding propylene glycol monomethyl ether acetate) having ΔEST of 0.45 eV or more, and a content mass of the second solvent is 4.0% to 60.0% with respect to the total mass of (F) the solvent.SELECTED DRAWING: None
Owner:NIPPON STEEL CHEM & MATERIAL CO LTD

Copper-clad plate waste gas recovery method

The invention provides a copper-clad plate waste gas recovery method, and belongs to the technical field of waste gas treatment. The recovery method of the copper-clad plate waste gas comprises the following steps: carrying out first reverse contact on the copper-clad plate waste gas and a first solvent to obtain first tail gas; performing second reverse contact on the first tail gas and a second solvent to obtain second tail gas; carrying out third reverse contact on the second tail gas and water to obtain wastewater; the first solvent and the second solvent independently comprise at least one of ethylene glycol diacetate, N-methyl pyrrolidone, propylene glycol monomethyl ether and dimethyl sulfoxide. According to the invention, based on the principle of similar intermiscibility, the organic components in the copper-clad plate waste gas can be absorbed by adopting the two-stage solvent, and the organic components in the copper-clad plate waste gas are converted into a liquid state from a gaseous state, so that a foundation is laid for subsequent separation and purification; and then water is adopted for absorption, so that all impurity components in the copper-clad plate waste gas can be absorbed into the water, and environment-friendly recovery of the copper-clad plate waste gas is realized.
Owner:MIANYANG MEEM ELECTRONIC MATERIALS CO LTD

Preparation method of octadiene monomethyl ether and used catalyst

The invention provides a preparation method of octadiene monomethyl ether and a used catalyst, the catalyst comprises a palladium-containing compound and a ligand, the ligand has a structure as shown in a formula I, substituent groups R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 and R15 are independently selected from fluorine, methyl and hydrogen, and at least one substituent group is fluorine. According to the invention, the F atom is introduced to the substituent outside the ring of the ligand, so that the electron withdrawing capability of the ligand is enhanced, the catalytic activity of the catalyst is improved, and the requirements on reaction conditions are reduced. In addition, by introducing F atoms, the steric hindrance effect of the ligand is enhanced, and the selectivity of the catalyst can be improved.
Owner:PETROCHINA CO LTD

Environment-friendly water-based binder suitable for BJ additive manufacturing and preparation method of environment-friendly water-based binder

The invention provides an environment-friendly water-based binder suitable for BJ additive manufacturing and a preparation method of the environment-friendly water-based binder. The water-based binder comprises the following components in percentage by weight: 10%-30% of propylene glycol monomethyl ether, 5%-10% of diethylene glycol, 1%-10% of polyethylene glycol, 0.1%-3% of nano SiO2 and the balance of deionized water. According to the invention, ethylene glycol monomethyl ether and diethylene glycol are adopted to construct a composite solvent system, the low volatility of propylene glycol monomethyl ether and the high wettability of diethylene glycol are utilized to construct a stable composite solvent system with appropriate solubility, and then polyethylene glycol PEG is used as a bonding enhancer to adjust the physical characteristics of the binder. The viscosity of the binder is controlled within a reasonable range, nano SiO2 is added as a rheology modifier and a modification component, the flowing property of a binder system is adjusted through a trace amount of nano SiO2, and the formula can be adjusted according to material types and printing environments and is suitable for various metal and ceramic printing systems.
Owner:SUIZHOU HAIFUTE HARDWARE CO LTD

Chemical solution, chemical solution-housing article, pattern forming method, and method for producing electronic device

It is an object of the present invention to provide a chemical solution that, when applied to an object to be treated, can suppress the occurrence of defects containing alkali metals and defects containing boron after the application to the object to be treated and that, when used as a washing solution for pipes, can suppress the occurrence of particle defects on the surface of a substrate supplied with a composition through the washed pipes. The chemical solution of the invention is a chemical solution containing propylene glycol monomethyl ether acetate and boron atoms. The content of propylene glycol monomethyl ether acetate is 80% by mass or more based on the total mass of the chemical solution, and the content of boron atoms is 0.001 to 100 ppt by mass based on the total mass of the chemical solution.
Owner:FUJIFILM CORP

Propylene glycol monomethyl ether acetate composition

This propylene glycol monomethyl ether acetate composition contains propylene glycol 1-monomethyl ether 2-acetate, and has an absorbance of 0.030 or less at 259 nm as measured after the propylene glycol monomethyl ether acetate composition has been submitted to the following test. (Test) The propylene glycol monomethyl ether acetate composition is heated to 80°C in a container made of borosilicate glass in a nitrogen atmosphere, and kept in that condition for 275 hours.
Owner:KH NEOCHEM CO LTD

Preparation and application methods of neodymium-iron-boron magnet water-based anticorrosive paint

The invention relates to the technical field of coatings, and aims to provide a preparation method and a use method of a neodymium-iron-boron magnet water-based anticorrosive coating. Comprising the following steps: mixing bisphenol A epoxy resin, n-butyl alcohol and ethylene glycol monobutyl ether, and mixing methacrylic acid, butyl acrylate, styrene and an initiator; mixing the two mixed solutions drop by drop, and reacting to obtain water-based acrylic acid modified epoxy resin; the preparation method comprises the following steps: uniformly mixing organic siloxane, deionized water and propylene glycol monomethyl ether, and reacting to obtain water-based silica sol; uniformly mixing the water-based acrylic modified epoxy resin, the water-based silica sol, the ether solvent, the ultra-fine filler, the curing agent, the carbon black color paste and the deionized water, adding the deionized water, uniformly stirring, and filtering to obtain the water-based anticorrosive coating. The product is high in environmental protection property and small in influence on the environment; the method is simple and efficient to use, easy to operate, low in energy consumption requirement and suitable for large-scale industrial production; and the compactness and the corrosion medium infiltration resistance of the coating are remarkably improved, and the coating has excellent corrosion resistance.
Owner:HANGZHOU FEISHANG COMPOSITE MATERIALS TECHNOLOGY CO LTD

Treatment liquid and treatment liquid-housing article

It is an object of the invention to provide a treatment liquid that, when used as a developer or a rinsing liquid for a metal resist film, exhibits a high ability to suppress the occurrence of pattern defects and also exhibits a high pattern resolution. The treatment liquid of the invention is a treatment liquid containing propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether, and acetic acid. The content of propylene glycol monomethyl ether acetate is 60% by mass or more based on the total mass of the treatment liquid, and the content of propylene glycol monomethyl ether is 0.00010 to 0.1% by mass based on the total mass of the treatment liquid. The content of acetic acid is 1.0% by mass or more and less than 40.0% by mass based on the total mass of the treatment liquid.
Owner:FUJIFILM CORP

Propylene glycol monomethyl ether acetate composition

PCT designated stage expiredWO2025143088A1Organic chemistryPolymer scienceMonomethyl ether
This propylene glycol monomethyl ether acetate composition contains propylene glycol 1-monomethyl ether 2-acetate, and has an absorbance of 0.030 or less at 259 nm as measured after the propylene glycol monomethyl ether acetate composition has been submitted to the following test. (Test) The propylene glycol monomethyl ether acetate composition is heated to 80°C in a container made of borosilicate glass in a nitrogen atmosphere, and kept in that condition for 275 hours.
Owner:KH NEOCHEM CO LTD

Low-defect few-layer graphene water-based conductive paste and preparation method and application thereof

The invention discloses low-defect few-layer graphene water-based conductive paste and a preparation method and application thereof, and belongs to the technical field of conductive paste. The low-defect few-layer graphene water-based conductive paste comprises the following components in parts by weight: 1-3 parts by mass of low-defect few-layer graphene, 100 parts by mass of ultrapure water and 0.8-1.2 parts by mass of a conductive additive, the low-defect few-layer graphene is obtained by performing room-temperature intercalation on graphite powder, performing chemical expansion and performing water-phase stripping by adopting an aqueous solution of 5 '-adenine nucleotide salt, the conductive additive is amphiphilic polythiophene; the amphiphilic polythiophene is obtained by polymerizing 2, 5-dibromo-3-triethylene glycol monomethyl ether thiophene and 3-[10-(4-toluene ether) decyl] thiophene which are used as monomers and then treating by hydrogen bromide and anhydrous acetic anhydride; the low-defect few-layer graphene water-based conductive paste prepared by the invention has few graphene defects, good dispersity and excellent conductivity.
Owner:JIANGSU SHANYUAN TECH CO LTD

Method for recovering organic substances from epichlorohydrin wastewater

The present application relates to the field of epichlorohydrin wastewater treatment, and discloses a method for recovering organic matter from epichlorohydrin wastewater. The method comprises the following steps: introducing the epichlorohydrin wastewater into a pretreater for neutralization treatment to obtain neutralized wastewater, wherein the pH of the neutralized wastewater is 5-10; introducing the neutralized wastewater into a dehydration concentration tower, and using the overhead pressurized gas phase as a heat source of the dehydration concentration tower to perform dehydration evaporation treatment on the neutralized wastewater to obtain concentrated wastewater; introducing the concentrated wastewater into a deheavy evaporator for deheavy evaporation treatment to obtain salt-containing waste liquid and deheavy evaporator gas phase; introducing the deheavy evaporator gas phase into a dehydration tower for dehydration treatment to obtain organic matter containing glycerol monomethyl ether and glycerol and effluent wastewater; and introducing the organic matter containing glycerol monomethyl ether and glycerol into a product tower for separation treatment to obtain glycerol monomethyl ether and glycerol. The method can realize the recovery of organic matter in epichlorohydrin wastewater, and obtain glycerol monomethyl ether and glycerol.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2