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74results about How to "Broad compatibility" patented technology

Transparent nanometer zirconium dioxide liquid phase dispersoid, and preparation method and application thereof

The invention discloses transparent nanometer zirconium dioxide liquid phase dispersoid, and a preparation method and application thereof. The dispersoid comprises liquid phase media and nanometer zirconium dioxide particles, wherein the nanometer zirconium dioxide particles are uniformly dispersed into liquid phase media; the solid content of the dispersoid is 1 weight percent to 50 weight percent; the one-dimensional dimension of the nanometer zirconium dioxide particles is 1 to 12nm; the liquid phase media are water, organic solvents, a mixture of water-soluble organic solvents and water, or a mixture of different organic solvents. The nanometer zirconium dioxide in the product has high crystallinity degree; the particle diameter is small; the distribution is uniform; any surfactant is not contained; the purity is high; the dispersion effect is good; no sedimentation occurs after the still standing for 6 months or longer. The product prepared by the method does not need any treatment, and is directly the transparent nanometer zirconium dioxide liquid phase dispersoid; any substance does not need to be added for dispersion assistance; the problems of easy agglomeration, poor dispersibility and poor optical performance of the composite material are solved; higher application performance and wider application ranges are given to the product.
Owner:BEIJING UNIV OF CHEM TECH

Preparation of wide compatible, stable and rheologic activating urethane solution

The invention relates to a process for preparing a solution which comprises urea urethanes and is effective as a thixotropic agent, which involves reacting at least two structurally different monohydroxy compounds with an excess of toluylene diisocyanate to form monoisocyanate adducts, removing the unreacted portion of the toluylene diisocyanate, and reacting the resultant monoisocyanate adducts with diamines in an aprotic solvent in the presence of a lithium salt to form urea urethanes. The invention also relates to the use of the solution to receive thixotropic coating compositions.
Owner:BYK CHEM GMBH

PVC waterproof coiled material and preparation process thereof

The invention discloses a PVC (polyvinyl chloride) waterproof coiled material. The PVC waterproof coiled material is characterized in that: boric sludge or red mud serving as a filling material is added into raw materials of the PVC waterproof coiled material, and the mass percent of the adding amount of the boric sludge or the red mud in the raw materials of the PVC waterproof coiled material to the adding amount of PVC resin is 40-50: 100. The PVC waterproof coiled material has the advantages of flame resistance, corrosion resistance and color exposure; the boric sludge or the red mud serving as the filling material in the PVC waterproof coiled material remarkably improves the use stability and ageing resistance of the PVC waterproof coiled material, and increases the functions of corrosion resistance, fire resistance, self cleaning and the like. A preparation process for the PVC waterproof coiled material is simple, and the boric sludge or the red mud used as the common filling material only needs to be blended.
Owner:北京立高科技股份有限公司 +1

Method for synthesizing aromatic aldehyde, aromatic ketone and aromatic ester through catalytically oxidizing alkyl aromatic compound by iron

The invention discloses a method for synthesizing aromatic aldehyde, aromatic ketone and aromatic ester through catalytically oxidizing an alkyl aromatic compound by iron, and belongs to the technical field of catalytic synthesis. According to the method, a low-cost and environment-friendly iron catalyst is used under a normal pressure; under the action of hydrogen and silicon reagents serving as an accelerant and an oxidant, a side chain of an aromatic hydrocarbon is oxidized into a carbonyl group for generating the corresponding aromatic aldehyde, aromatic ketone and aromatic ester. The method for preparing the aromatic aldehyde, the aromatic ketone and the aromatic ester through a catalytic oxidation reaction, which is provided by the invention, has numerous advantages that a catalyst, reaction raw materials, the oxidant and a silicon reagent are wide in sources and good in stability and is low-cost and environment-friendly; the alkyl aromatic compound is metered to participate in a reaction; the reaction condition is mild; the compatibility of functional groups is good; the scope of application is wide; the reaction selectivity is good; in an optimized reaction condition, the separation yield of a target product can be up to approximately 95 percent.
Owner:NANJING NORMAL UNIVERSITY

Water-based varnish

The invention relates to a material for construction and decoration and in particular relates to water-based varnish. The formula of the water-based varnish is as follows: 15 to 30 parts of water, 10 to 20 parts of acrylic polymers, 12 to 20 parts of titanium dioxide, 3 to 5 parts of barite powders, 5 to 15 parts of ground calcium carbonate, 3 to 5 parts of kaolin, 3 to 5 parts of mica powders, 0.4 to 0.8 parts of wetting and dispersing agents, 0.3 to 0.4 parts of a defoaming agent, 0.3 to 0.6 parts of a leveling agent, 0.5 to 2 parts of a thickener, 0.2 parts of a multifunctional auxiliary agent, 0.8 to 1 part of a film-forming agent, and 0.8 to 2 parts of a disinfectant and anti-mildew agent. The water-based varnish is made from high-quality acrylic polymers, natural mineral powders and multiple auxiliary agents and refined by the advanced production process. The water-based varnish has the characteristics of environmental friendliness, no toxicity, alkali resistance, mildew resistance, primer-coat property, crack resistance, energy saving, flame retardancy, sound insulation, moisture protection, leakage resistance, strong adhesion, high hardness and dry friction resistance.
Owner:深圳市名雕丹迪设计有限公司

High-dispersity nano-zirconia particles and method for preparing transparent dispersoid of high-dispersity nano-zirconia particles

The invention discloses high-dispersity nano-zirconia particles and a method for preparing transparent dispersoid of the high-dispersity nano-zirconia particles. The solid content of transparent nano-zirconia liquid phase dispersoid ranges from 1 wt% to 80 wt%, zirconia crystals are small in grain size and even in distribution, the one-dimensional size ranges from 1 nanometer to 10 nanometers, andthe average grain size is 3 nanometers. According to the preparation method, the nano-zirconia particles are prepared through a method for pyrolyzing inorganic zirconium salt in a supergravity environment, the aggregation performance is greatly reduced as the supergravity level is improved, and then the transparent zirconia liquid phase dispersoid is directly obtained after washing and modifyingare carried out; the problem that nano-zirconia particles are easy to aggregate, poor in dispersity and poor in composite optical performance can be solved, and therefore the product has higher application performance and a wider application range.
Owner:BEIJING UNIV OF CHEM TECH

Polyolefin graphene nanocomposite material, and preparation method thereof

The invention belongs to the field of polymer / graphene composite materials, and more specifically relates to a polyolefin graphene nanocomposite material, and a preparation method thereof. The preparation method comprises following steps: polyolefin is smashed using a solid phase mechanical reactor, graphene is added, and an obtained mixture is mixed to be uniform; the mixture is grinded using the solid phase mechanical reactor so as to obtain a polyolefin graphene composite powder; the polyolefin graphene composite powder is subjected to extrusion, injection molding or hot press molding so as to obtain the polyolefin graphene nanocomposite material. The preparation method is capable of dispersing graphene preferably, is low in cost, and is friendly to the environment; and the obtained polyolefin graphene nanocomposite material is high in yield strength and impact strength.
Owner:SICHUAN UNIV

Surface bionic protection method of stone material and lithical cultural relic

The present invention discloses surface bionic protection method of stone material and lithical cultural relic. The protection method includes cleaning the surface with detergent comprising deionized water or organic solvent, treating the surface with biological amphibpatic functional pre-treating liquid, and crystallizing supersaturated calcium oxalate solution on the surface to form fine and compact surface protecting calcium oxalate film. The present invention has the advantages of wide applicable range, excellent compatibility to stone material, high weather resistance, raised corrosion resistance, improved hydrophobicity, firm combination with base stone material and no influence on the outer appearance, color and hand feeling of original stone material.
Owner:ZHEJIANG UNIV

Red organic electrophosphorescent material iridium metal complex, preparation method thereof, and organic electroluminescent device

InactiveCN104140441AGood energy transfer efficiencyAppropriate red light emission wavelengthGroup 8/9/10/18 element organic compoundsSolid-state devicesIridiumGrignard reaction
The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Grignard reaction on an iridium metal complex to prepare a compound C, carrying out dehydration cyclization on the compound C to obtain a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and acetylacetone to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Method for detecting prostate cancer exosome based on Fe3O4@ SiO2@ TiO2 nanoparticle enrichment and PSMA sensor

The invention discloses a method for detecting prostate cancer exosome based on Fe3O4@ SiO2@ TiO2 nanoparticle enrichment and a PSMA sensor. The method comprises the following steps of: enriching exosome by adopting Fe3O4@ SiO2@ TiO2 nanoparticles, and then constructing a hairpin-shaped PSMA aptamer sensor to quantify the exosome by measuring the change of fluorescence intensity. By utilizing thedetection method, the exosome of prostate cancer cells can be successfully distinguished from the exosome of normal prostate cells, and the detection limit is 9 * 10 <3> exosomes / microliter. The method is used for clinical prostate cancer patient serum samples and normal human serum samples, can quickly and accurately detect prostate cancer patients, and is verified by a traditional ELISA method. The exosome enrichment method is simple and quick, the enrichment efficiency is high, exosome enrichment can be completed within 8 minutes, and the enrichment efficiency is 91.5%. The sensitivity ishigh, the specificity is high, the detection limit is 9 * 10 <3> exosomes / microliter, and clinical prostate cancer patients and healthy people can be remarkably distinguished.
Owner:NINGBO UNIV

Phosphate-ester dispersing agent and preparing method and application thereof

The invention relates to a phosphate-ester dispersing agent. The phosphate-ester dispersing agent comprises a free radical polymer precursor shown in the chemical formula (1) and reaction products ofa phosphated reagent (The formula is defined in the description), wherein a raw material of the free radical polymer precursor shown in the chemical formula (1) is prepared from a monomer A, a monomerB, an initiating agent and a chain transfer agent, the monomer A is alkyl methacrylate or alkyl acrylate, the monomer B is an ethylenic-bond unsaturated monomer with 5-80 carbon atoms and a polyethersegment, and in the chain transfer agent (The formula is defined in the description), m is an integer between 2 and 12. When the phosphate-ester dispersing agent is used in a coating and ink, the phosphate-ester dispersing agent has the wide consistency and the excellent dispersion stability, and is low in color paste viscosity, good in paint-film showing color and high in luster.
Owner:AFCONA CHEM HAIMEN

Water-based varnish

The invention relates to a material for construction and decoration and in particular relates to water-based varnish. The formula of the water-based varnish is as follows: 15 to 30 parts of water, 10 to 20 parts of acrylic polymers, 12 to 20 parts of titanium dioxide, 3 to 5 parts of barite powders, 5 to 15 parts of ground calcium carbonate, 3 to 5 parts of kaolin, 3 to 5 parts of mica powders, 0.4 to 0.8 parts of wetting and dispersing agents, 0.3 to 0.4 parts of a defoaming agent, 0.3 to 0.6 parts of a leveling agent, 0.5 to 2 parts of a thickener, 0.2 parts of a multifunctional auxiliary agent, 0.8 to 1 part of a film-forming agent, and 0.8 to 2 parts of a disinfectant and anti-mildew agent. The water-based varnish is made from high-quality acrylic polymers, natural mineral powders and multiple auxiliary agents and refined by the advanced production process. The water-based varnish has the characteristics of environmental friendliness, no toxicity, alkali resistance, mildew resistance, primer-coat property, crack resistance, energy saving, flame retardancy, sound insulation, moisture protection, leakage resistance, strong adhesion, high hardness and dry friction resistance.
Owner:深圳市名雕丹迪设计有限公司

Acroleic acid polymerization solution and preparation thereof

The invention relates to an acrylic acid polymerized solution used for water-borne flexible and intaglio printing ink and water-borne oil polish and a preparation method thereof. The compositions by weight percentage of the acrylic acid polymerized solution are: 8 to 12 percent of acrylic ester polymer, 2 to 3 percent of ethanolamine, 25 to 30 percent of water, 20 to 30 percent of butyl acrylate, 7 to 10 percent of styrene, 2 to 5 percent of dimethyl ester, 4 to 6 percent of emulsifier, 10 to 12 percent of water, 0.2 to 0.5 percent of initiator and 2 to 8 percent of water. The acrylic acid polymerized solution is prepared by respective mixture and heat treatment of the various compositions according to corresponding proportions. The acrylic acid polymerized solution has high glaze, good film-forming property, good transfer printing property, low glass temperature and low wettability and dispersity on pigment, is compatible with most water-borne ink resins, and has novel compositions, scientific mixture, simple preparation and low cost.
Owner:广东佳景科技股份有限公司

Isocyanate (environment-friendly) binder for particleboards and preparation method of binder

The invention discloses an isocyanate (environment-friendly) binder for particleboards and a preparation method of the binder. The main components of the isocyanate (environment-friendly) binder for particleboards comprise 30 to 40 parts of isocyanate, 50 to 60 parts of polyol, 1 to 3 parts of initiator, 5 to 10 parts of acrylic acid, 1 to 3 parts of chain extender, 3 to 5 parts of starch, 3 to 5parts of polyvinyl alcohol, 5 to 7 parts of soybean protein, 1 to 3 parts of aqueous tackifier, and 100 to 200 parts of water. The preparation process of the isocyanate (environment-friendly) binder for particleboards of the invention is simple and mature, the production cost is low, the binder is friendly to environment, and the operation is easy to control.
Owner:山东同创精细化工有限公司

Casein modifying method

InactiveCN110527110AImprove hard and brittle problemsGood flexibilityInksCoatingsDiluentHardness
The invention discloses a casein modifying method. The casein modifying method comprises the following steps: (1) preparation of an initiator solution, (2) preparation of a monomer solution, (3) preparation of a casein solution, and (4) modification of casein. A film formed by the modified casein which is prepared by using the modifying method not only is water-permeable and breathable, but also can ensure the color fixing effect after wet rubbing is performed, and the film has good flexibility, so that the problems of hardness and brittleness of the casein formed film are solved, applicationof casein in coatings, ink and other fields is widened, and a gravure ink diluent which is prepared from the modified casein has wide compatibility and excellent printability.
Owner:上海欧畅新材料科技有限公司

Biodegradable blend and preparation method and application thereof

The invention provides a biodegradable blend and a preparation method and application thereof. The biodegradable blend mainly comprises thermoplastic dextrin, polylactic acid, PBSA (poly(butylene succinate-co-adipate)), a chain extender, a lubricating agent and inorganic filler, wherein a preparation method of the thermoplastic dextrin comprises the following steps of: 1) mixing starch and amylase, and standing for 10-20 minutes to obtain dextrin, wherein the weight ratio of the starch to the amylase is (52-80):(2-10); and 2) uniformly mixing the dextrin obtained in the step 1) and a plasticizer and mixing to obtain the thermoplastic dextrin, wherein the weight ratio of the dextrin to the plasticizer is (60-85):(5-40). The blend provided by the invention is an environment-friendly completely-biodegradable material which is widely available and is a renewable resource; and the biodegradable blend provided by the invention has good compatibility, better mechanical property and wider application fields.
Owner:东莞市绿睿塑胶科技有限公司

Thermosetting acrylic resin for electrogilding oil and preparation method thereof

InactiveCN102206309ABroad compatibilityGood adhesionCoatingsSolventTotal Formula
The invention relates to a preparation method of thermosetting acrylic resin for electrogilding oil. The preparation method comprises the following steps of: 1) preparing 10 to 30 weight percent of unsaturated polyester intermediate, 5 to 20 weight percent of carboxyl-containing acrylic acid monomer, 2 to 10 weight percent of hydroxyl-containing acrylic acid monomer, 12 to 25 weight percent of styrene monomer, 10 to 30 weight percent of other acrylic acid monomers, 1.5 to 4.5 weight percent of initiator and 30 to 45 weight percent of solvent which serve as raw materials; 2) putting the total formula amount of unsaturated polyester intermediate and partial formula amount of solvent and initiator into a reaction kettle, uniformly stirring, introducing N2, and heating with stirring for temperature rise until refluxing is realized; and 3) dripping the total formula amount of monomer and partial formula amount of initiator and solvent at the refluxing temperature of between 135 and 150 DEGC to form a mixture, preserving the heat at the refluxing temperature of between 135 and 150 DEG C for 2 to 4 hours, replenishing the residual initiator and solvent to form the mixture, preserving the heat for 4 to 6 hours, cooling and stopping the reaction. The thermosetting acrylic resin is applied to the electrogilding oil, has high adhesion performance, high glossiness, high rigidity and highsalt fog resistance, and particularly has high low-temperature bridging performance and high dissolubility when mixed with other resins.
Owner:广东同步化工股份有限公司

Red organic electrophosphorescent material iridium metal complex, preparation method thereof, and organic electroluminescent device

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and an auxiliary ligand 2,2,6,6-tetramethyl-3,5-heptanedione to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Red organic electrophosphorescent material iridium metal complex, preparation method thereof, and organic electroluminescent device

InactiveCN104140440AGood energy transfer efficiencyAppropriate red light emission wavelengthGroup 8/9/10/18 element organic compoundsSolid-state devicesIridiumSolvent
The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and an auxiliary ligand acetylacetone to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Alkyl-halide boron esterification reaction method free from transition metal catalysis

The invention discloses an alkyl-halide boron esterification reaction method free from transition metal catalysis. The method has the advantages that the transition metal catalysis is not needed, boric acid ester serves as a boron source, alkoxide serves as alkali, primary or secondary alkyl iodides or bromides are converted into the boric acid ester under mild conditions in an organic solvent anda small amount of water, high functional group compatibility is displayed, and the high yield is achieved. The obtained product, namely the boric acid ester, can be applied to important reactions inthe field of organic synthesis such as Suzuki coupling, thereby being converted into a series of compounds having application value.
Owner:PEKING UNIV

Red organic electrophosphorescent material iridium metal complex, preparation method thereof, and organic electroluminescent device

InactiveCN104140447AGood energy transfer efficiencyAppropriate red light emission wavelengthGroup 8/9/10/18 element organic compoundsSolid-state devicesSolventCoordination complex
The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and the cyclomedtalating ligand to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

A kind of transparent nano-zirconia liquid phase dispersion and its preparation method and application

The invention discloses transparent nanometer zirconium dioxide liquid phase dispersoid, and a preparation method and application thereof. The dispersoid comprises liquid phase media and nanometer zirconium dioxide particles, wherein the nanometer zirconium dioxide particles are uniformly dispersed into liquid phase media; the solid content of the dispersoid is 1 weight percent to 50 weight percent; the one-dimensional dimension of the nanometer zirconium dioxide particles is 1 to 12nm; the liquid phase media are water, organic solvents, a mixture of water-soluble organic solvents and water, or a mixture of different organic solvents. The nanometer zirconium dioxide in the product has high crystallinity degree; the particle diameter is small; the distribution is uniform; any surfactant is not contained; the purity is high; the dispersion effect is good; no sedimentation occurs after the still standing for 6 months or longer. The product prepared by the method does not need any treatment, and is directly the transparent nanometer zirconium dioxide liquid phase dispersoid; any substance does not need to be added for dispersion assistance; the problems of easy agglomeration, poor dispersibility and poor optical performance of the composite material are solved; higher application performance and wider application ranges are given to the product.
Owner:BEIJING UNIV OF CHEM TECH

Thermoplastic elastomer material, preparation thereof and method for manufacturing medicinal bottle stopper by using the same

The invention provides thermoplastic elastomer materials used for a bottle cork for manufacturing medicines, a preparation method thereof and a method for applying the bottle cork for manufacturing medicines thereof. The materials are prepared by the following components: styrene copolymer or rubber materials as well as polyolefine matters. The styrene copolymer is PP or PE; besides, the materials also contain a plasticizer and a loading agent, contain or do not contain a compatibilizer, contain or do not contain an antioxidant, contain or do not contain an antistatic agent, contain or do notcontain adhesion preventives. The preparation method thereof includes the steps of drying the materials, fusing a reaction kettle, using a plastic extruding machine to extrude the materials, using a cooling water slot to cool and shape the materials, using a hauling machine to haul and cut off the materials, and the like. The thermoplastic elastomer materials provided by the invention have the advantages of stable chemical property, no poison, low polarity and good rebound resilience.
Owner:谷其昌

Compound bag for packaging drugs and preparation method thereof

InactiveCN109367182AWide sealing temperature rangeWith heat seal strengthSynthetic resin layered productsBagsLow-density polyethyleneAdhesive
The invention discloses a compound bag for packaging drugs and a preparation method thereof and belongs to the field of drug packaging materials. The compound bag material for package comprises a heat-sealing layer, a blocking layer, an aluminium-foil layer, a bonding layer and a weather-resistant layer, wherein the first layer is the heat-sealing layer comprising the components of metallocene polypropylene with high melting point and vinyl-octene copolymer; the second layer is the blocking layer comprising medicine or food-grade polyvinylidene chloride (PVDC) and oxidized polyethylene; the third layer is the aluminium-foil layer; the fourth layer is the bonding layer comprising the components of maleic-anhydride modified polypropylene and nano silicon dioxide aerogel particles; the fifthlayer is the weather-resistant layer comprising a low-density polyethylene film. The compound bag for packaging the drugs disclosed by the invention has the beneficial effects that the structure is simple, the water-oxygen blocking property is high, the heat-insulating property is good, the application range is wide, and the need of people in the aspects of package and use of drugs can be met; simultaneously, the preparation method adopts an extruding machine for extrusion and layering and then adopts an adhesive for adhesion, is simple and easy in implementation, is fast and is suitable for large-scale production.
Owner:四川通国医药包装印刷有限公司

Water-based automobile chassis paint with strong permeation adhesiveness

The invention discloses a water-based automobile chassis paint with strong permeation adhesiveness. The water-based anti-rust paint is prepared from the following raw materials: a water-based epoxy ester resin dispersion, dimethylethanolamine, deionized water, polyether polyol, alkynediol, modified polysiloxane, montmorillonite, a coloring pigment, an anti-rust pigment, sericite, barium sulfate, a water-based polyester modified epoxy resin dispersion, a drier, a gold anti-flash-rust auxiliary agent, a wetting leveling agent, a rheological auxiliary agent and a cosolvent. The water-based automobile chassis paint disclosed by the invention has relatively high anti-sagging performance and leveling property; has good constructability, and can adapt to manipulator and manual spraying under different seasonal environmental conditions; and has better corrosion resistance, and can reduce the maintenance cost of the vehicle can be reduced.
Owner:郑州双塔涂料有限公司

Boron esterification reaction method of alkyl bromide without transition metal catalysis

The invention discloses a boron esterification reaction method of alkyl bromide without transition metal catalysis. The method includes: in the absence of a metal catalyst, dissolving 1 equivalent ofalkyl bromide, 1-5 equivalent of diborate, 1-5 equivalent of silane and 1-5 equivalent of a free radical initiator in an organic solvent, sealing the reaction system, and carrying out stirring reaction at 20-150DEG C to obtain alkyl borate. The method for synthesis of alkyl borate from alkyl bromide is simple and efficient, has no need for transition metal catalysis, and only needs diborate serving as a boron source, silane and the free radical initiator are added for reaction under a heating condition, the method shows wide functional group compatibility, can convert various alkyl bromides into borate thereof, and has considerable yield. The obtained product alkyl borate can be applied to Suzuki coupling and other important reactions in the organic synthesis field, and then can be converted into a series of compounds with application value.
Owner:PEKING UNIV +1

Acrylic acid terpolymer dispersing agent and preparation method and applications thereof

The invention discloses an acrylic acid terpolymer dispersing agent and a preparation method and applications thereof. The acrylic acid terpolymer dispersing agent is prepared from the following components in parts by weight: 10-20 parts of a monomer A, 40-60 parts of a monomer B, 5-15 parts of a monomer C, 0.5-2 parts of an initiator, 0.3-1.2 parts of a chain transfer agent, and 20-40 parts of an organic solvent, wherein the monomer A is an acrylic acid long-chained alkyl ester monomer, the monomer B is an acrylic acid short-chained alkyl ester monomer, and the monomer C is an amino-containing acrylic acid monomer. The acrylic acid terpolymer dispersing agent is simple in preparation technology; and by using a specific step-by-step addition method, the conversion rate of the monomers can be increased, and the system viscosity can be effectively reduced.
Owner:优卡化学(上海)有限公司

Color paste and preparation technology thereof

The invention relates to the field of coating, and provides a color paste. The color paste comprises a light stabilizer, which can shield or absorb the energy of ultraviolet rays, but does not changeitself and can prevent the destruction of sunlight or other harmful ultraviolet light. Through use of a surfactant and a solvent in the color paste, the stability of the color paste is improved, and through addition of a high molecular dispersing agent, the compatibility of the color paste is wider; in addition, the invention further provides a preparation technology of the color paste. By the preparation technology, the color paste with good light resistance, stability and compatibility can be prepared.
Owner:SHANGHAI GOLD LION CHEM CO LTD
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