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309 results about "Resorcinol" patented technology

Resorcinol (or resorcin) is an organic compound with the formula C₆H₄(OH)₂. It is one of three isomeric benzenediols, the 1,3-isomer (or meta-isomer). It is a white, water-soluble solid.

A method for preparing a lightweight carbon aerogel material for electromagnetic shielding

The application discloses a preparation method of carbon aerogel material for light electromagnetic shielding, and comprises the following steps: adding resorcinol, phloroglucinol, a template agent and formaldehyde into pure water, stirring and dissolving to obtain a precursor solution; adding the precursor solution into white oil containing a surfactant, emulsifying, heating in an oil bath and fully reacting; centrifugal separation to obtain powder, high-temperature carbonization, dispersion in oleylamine, addition into a stock solution containing nickel acetylacetonate, triphenylphosphine and oleylamine, high-temperature reaction and cooling, addition of a mixture of hexane and ethanol to obtain a product; centrifugal separation and washing to obtain light high-electromagnetic-shielding carbon aerogel. The carbon aerogel material for light electromagnetic shielding prepared by the method has the advantages of small density, high efficiency, corrosion resistance, high electromagnetic shielding efficiency, high product yield and the like, and by controlling the nucleation and growth rate of Ni2P, the Ni2P nanoparticles can be uniformly grown on the carbon aerogel microspheres, and the method is suitable for application in large-scale industrial production.
Owner:SINOSTEEL MAANSHAN INST OF MINING RES CO LTD +1

Conductive Adhesives And Epoxies

A conductive epoxy composition is disclosed comprising an epoxy resin, a low-viscosity hydrocarbon diluent, silver, and graphene. The one-part formulation provides enhanced electrical conductivity, mechanical strength, and process stability. The epoxy resin may include resorcinol diglycidyl ether, diglycidyl ether of Bisphenol A, or Bisphenol F. The hydrocarbon diluent may include glycidyl-ether-family resins having defined carbon-chain characteristics and molecular weights. Silver may be present in particulate, flake, nanoparticle, or coated forms at about 55-90 wt. %, while graphene may be present at 0.03-0.3 wt. % with dimensions of 1-10 μm and surface areas of 400-2,000 m2 / g. Optional additives include solvents, ionic liquids, latent curing agents, and strength enhancers to optimize curing and adhesion.
Owner:NANOTECH ENERGY INC

Energy-saving jacketed heat exchanger for resorcinol production and use method

The invention relates to the technical field of energy-saving heat exchange devices, in particular to an energy-saving jacketed heat exchanger for resorcinol production. Comprising an outer shell, a heat conduction shell is fixedly connected into the outer shell, the heat conduction shell and the outer shell are matched to form a steam cavity, the outer shell is provided with an air inlet and an air outlet which are both communicated with the steam cavity, and a water outlet communicated with the steam cavity is formed in the lower side of the outer shell. A steam cavity is formed in the outer shell, a liquid separation shell is installed on the upper side in the outer shell through a supporting plate, the outer shell is fixedly connected with a liquid inlet pipe communicating with the liquid separation shell, the outer shell is slidably and rotationally connected with a rotary drum located in the steam cavity, and a spiral flow guide plate is arranged on the inner wall of the rotary drum. Steam rises along a spiral path through the flow guide plate, sufficient heat exchange between the steam and liquid medicine is guaranteed, the contact time of the steam and the liquid medicine is prolonged, the steam is prevented from being discharged before heat exchange is completed, and therefore the purpose of saving energy is achieved.
Owner:SHANDONG BINYUAN CHEM CO LTD

Preparation method of highly graphitized coated carbon material based on phenolic resin

The invention relates to the technical field of lithium / sodium ion batteries, in particular to a preparation method of a highly graphitized coated carbon material based on phenolic resin, which comprises the following steps: uniformly mixing formaldehyde, resorcinol and a basic catalyst, and then catalyzing and curing; carrying out carbonization treatment on the uncarbonized phenolic resin based on a gradient heating method; mixing ethidene diamine, dichloromethane and carbonized phenolic resin, and heating in an oil bath; and placing the cured and coated graphitized phenolic resin in a tubular furnace for highly graphitizing. According to the preparation method of the highly-graphitized coated carbon material based on the phenolic resin, high ordering of a carbon layer is achieved through gradient heating graphitization, a carbon six-membered ring plane is promoted to expand, an ABAB stacked graphite structure is formed, the conductivity is effectively improved, a CVD coating and nitrogen doping synergistic technology is combined, a CVD reaction is formed through ethanediamine and dichloromethane, and the high-graphitization coated carbon material based on the phenolic resin is obtained. Functional groups such as pyridine-N and graphite-N are introduced to the surface of the carbon layer, so that the interface bonding force between the carbon layer and the matrix is enhanced, and the conductivity of the carbon layer is further improved.
Owner:GUANGDONG UNIV OF TECH

Microcapsule type self-early-warning and self-repairing epoxy coating as well as preparation method and application thereof

PendingCN121379293ALuminescent paintsAnti-corrosive paintsEthyl phenylacetateOil phase
The invention provides a microcapsule type self-early-warning and self-repairing epoxy coating as well as a preparation method and application thereof, and belongs to the technical field of anticorrosive coatings. The method comprises the following steps: mixing urea, resorcinol, ammonium chloride and a polyethylene grafted maleic anhydride aqueous solution, and adjusting the pH value of the mixed solution to obtain a water phase; mixing the PU prepolymer, DCF, TO and ethyl phenylacetate to obtain an oil phase; the water phase and the oil phase are mixed, a formaldehyde solution is added into the mixed solution for a reaction, and microcapsules are obtained; and adding the microcapsule into the epoxy coating to obtain the microcapsule type self-early-warning and self-repairing epoxy coating. According to the microcapsule, PU / UF serves as a shell of DCF and TO, DCF serves as an early warning agent, and TO serves as a repairing agent; the DT coated PU / UF microcapsule has good dispersibility in the coating, when the coating is damaged, the microcapsule is broken to release DCF and TO, the self-early warning and self-repairing performance of the coating is achieved, and metal corrosion is delayed.
Owner:YANTAI UNIV

Synthesis and purification method of trihydroxy phenol compound

The invention discloses a synthesis and purification method of a trihydroxy phenol compound, which comprises the following steps: dissolving a crude product of resorcinol or a derivative thereof in methanol to obtain a solution, dropwise adding a methanol solution of p-toluenesulfonic acid and a ketone compound into the solution, and carrying out catalytic reaction at 50-70 DEG C to obtain a reaction solution; dropwise adding the obtained reaction liquid into deionized water at the temperature of 0-5 DEG C at the speed of 1-3 mL / min, stirring to separate out a white solid, and performing suction filtration to obtain a crude product; dissolving the crude product in ethyl acetate, adding column chromatography silica gel powder, stirring and adsorbing, separating supernate, and concentrating; and dissolving the concentrated solution in a mixed solvent of methanol and water, heating to 60-65 DEG C, dissolving, cooling to below 5 DEG C at a rate gradient of less than or equal to 0.5 DEG C / min, crystallizing, filtering, and drying to obtain the high-purity target compound. The method is simple and rapid in process synthesis, short in production period, low in production cost, high in target product total yield and suitable for industrial production.
Owner:SOUTHEAST UNIV CHENGXIAN COLLEGE +1

Whitening and spot-fading composition and application thereof

PendingCN121081310ACosmetic preparationsToilet preparationsBiotechnologyGlycyrrhiza glabra Root
The invention discloses a whitening and spot-fading composition and application thereof, and belongs to the technical field of cosmetics. The whitening and spot-fading composition is prepared from the following components in percentage by mass: 0.1 to 5.0 percent of nicotinamide, 0.0001 to 3.0 percent of tranexamic acid, 0.0001 to 1.0 percent of glycyrrhiza glabra root extract, 0.0001 to 0.4 percent of phenethyl resorcinol, 0.0001 to 2.0 percent of ascorbyl tetraisopalmitate, 0 to 1.0 percent (not including 0) of radix gentianae extract, 0.15 to 4.0 percent of emulsifier, 0.1 to 2.5 percent of antioxidant and the balance of water. By matching with various whitening active ingredients, the comprehensive whitening, brightening and skin improving effects are realized in the aspects of inhibiting melanin generation, blocking melanin transfer, accelerating melanin metabolism and the like; the combination of the specific emulsifier and the thickener can effectively improve the component stability of the composition. The composition is mild in performance, free of irritation to skin and good in market value.
Owner:广东博然堂生物科技有限公司

Pharmaceutical composition comprising 4-hexylresorcinol as active ingredient for prevention or treatment of bone disease

The present invention relates to a composition comprising 4-hexylresorcinol (4-HR) as an active ingredient for prevention or treatment of a bone disease, and a formulation thereof. The composition comprising 4-hexylresorcinol (4-HR) as an active ingredient, or an ointment thereof was found to improve bone thickness, density, and strength and control bone remodeling by promoting the differentiation of osteoblasts and suppressing the proliferation and differentiation of osteoclasts in osteoporosis-induced animal models. Thus, the composition or ointment comprising 4-hexylresorcinol (4-HR) as an active ingredient can be provided as a therapeutic agent for bone diseases including bone fracture, osteoarthritis, rheumatoid arthritis, and osteoporosis.
Owner:CELLGUARDIAN CO LTD

Production process of heavy aramid canvas

The invention discloses a production process of heavy aramid canvas. The production process comprises the following steps: S1, using aramid precursors as raw materials; s2, performing primary twisting on the aramid fiber protofilaments by using a rope twisting machine to form primary twisted filaments; s3, performing second twisting on the first twisted yarns by using a second twisting machine to form second twisted yarns; s4, weaving the second twisted yarns to form canvas; s5, the canvas is subjected to gum dipping treatment; wherein the impregnation formula comprises the following components in parts by weight: 0.37 part of caustic soda flakes, 14.7 parts of resorcinol, 14.7 parts of formaldehyde, 429 parts of butadiene-vinylpyridine rubber latex, 21 parts of ammonia water, 495.23 parts of water and 25 parts of isocyanate; the gum dipping speed is set to be in a periodic pulse mode. According to the method, the impregnation speed of the aramid canvas is set to be in a periodic pulse mode, so that the impregnation uniformity can be improved, the strength distribution is more consistent, and the strength loss rate is reduced. Through tests, the strength of the heavy aramid canvas can reach 4864n / mm.
Owner:ZHEJIANG UNIFULL HI-TECH IND CO LTD

Preparation method and application of high-purity cannabidiol heptyl derivative CBDP

The invention discloses a preparation method and application of a high-purity cannabidiol heptyl derivative CBDP, and belongs to the technical field of organic synthesis compounds. In order to solve the technical problems of low purity, complex process and high cost of cannabidiol heptyl derivatives in the prior art, the invention provides a preparation method with high purity and simple preparation process. The key points of the technical scheme are as follows: (1) 5-heptylresorcinol and (1S, 4R)-1-methyl-4-(1-methylvinyl)-2-cyclohexene-1-alcohol are dissolved in a solvent and react under the action of a Lewis acid catalyst, and a cannabidiol heptyl derivative CBDP is obtained; (2) dissolving a cannabidiol heptyl derivative CBDP in a solvent, reacting with a derivatization reagent, and purifying to obtain an intermediate 7; and (3) dissolving the intermediate 7 in a solvent, and purifying through an enzyme hydrolysis reaction to obtain the high-purity cannabidiol heptyl derivative CBDP.
Owner:JIMING MEDICAL TECH (SUZHOU) CO LTD

Fluorescent sensing system based on nitrogen-doped carbon dots and machine learning and application of fluorescent sensing system in recognition of benzenediol isomers

The invention discloses a fluorescence sensing system based on nitrogen-doped carbon dots and machine learning and application of the fluorescence sensing system in recognition of benzenediol isomers, and belongs to the technical field of analytical chemistry and artificial intelligence. According to the invention, the undoped carbon dots and the nitrogen-doped carbon dots of which the properties change in a gradient manner are utilized to form the probe library, the carbon dots in the probe library can perform collaborative recognition, and weak differences between analytes are accumulated and amplified. Although the response difference of each single probe in a probe library to two similar isomers is very small, the tiny differences can be accumulated and amplified in a high-dimensional response vector due to the gradient change of the properties of the probes; the microscopic chemical property difference, which is difficult to directly measure, between the isomers is converted into the macroscopic high-dimensional data mode difference which can be easily identified by a machine, so that the accurate identification and classification of the structural similar substances and the mixture thereof are realized.
Owner:KUNMING UNIV OF SCI & TECH

Self-cleaning bionic anti-drag film based on sharkskin surface structure and preparation process of self-cleaning bionic anti-drag film

The invention discloses a self-cleaning bionic anti-drag film based on a sharkskin surface structure and a preparation process of the self-cleaning bionic anti-drag film, and relates to the technical field of bionic anti-drag film preparation. According to the invention, resorcinol bis (2-hydroxyethyl) ether, 3, 3 ', 4, 4'-benzophenone tetracarboxylic dianhydride and the like are used as raw materials to prepare polyol containing an ester bond and an ether bond, the polyol reacts with 4, 4-diisocyanate dicyclohexylmethane to obtain a thermoplastic polyurethane film with high temperature resistance, and the polyol is also used for preparing an antistatic polyurethane coating, so that the antistatic polyurethane coating has high temperature resistance. And quaternary ammonium salt and sulfhydrylated titanium dioxide are introduced, so that the anti-drag layer formed after embossing and curing has antistatic and self-cleaning properties at the same time.
Owner:FEILINKE NEW MATERIALS (NANTONG) CO LTD

In-situ carbon-doped modified lithium ferrous silicate and preparation method thereof

The invention provides an in-situ carbon-doped modified lithium ferrous silicate preparation method which comprises the following steps: S1, preparing phenolic resin / silicon dioxide composite hollow spheres by adopting resorcinol, formaldehyde and a silicon source, then adding an iron source and a lithium source for reaction, and synthesizing by adopting a hydrothermal method to obtain a modified lithium ferrous silicate precursor; and S2, calcining the modified lithium ferrous silicate precursor prepared in S1 in an inert gas atmosphere to obtain the in-situ carbon-doped modified lithium ferrous silicate material. According to the method, the phenolic resin / silicon dioxide composite hollow sphere precursor is prepared, a stable Si-C bond is formed in the precursor, and the in-situ carbon-doped modified lithium ferrous silicate material is prepared by taking the Si-C bond as a silicon source, so that compared with heteroatom-doped carbon layer modification, the method disclosed by the invention has the advantages that side reactions can be reduced, breakage of a carbon layer is avoided, and the service life of the lithium ferrous silicate material is prolonged. Modification is more uniform, the preparation process is simple, and the cost is lower.
Owner:SOUTH CHINA UNIV OF TECH +1

Surface-modified fibers, reinforcing fibers, and molded article using same

PendingUS20250376566A1Fibre typesFiberPolymer science
To provide surface-modified fibers and reinforcing fibers that are capable of enhancing the adhesiveness to rubber, without the use of resorcinol and formaldehyde, and a molded article using the same. Surface-modified fibers include fibers, and a surface-modifying layer covering at least a part of a surface of the fibers, and have a solid surface zeta potential on a surface of the surface-modifying layer of −20.0 to 30.0 mV.
Owner:KURARAY CO LTD

Preparation method of nitrogen-oxygen co-doped nanoporous carbon material and application thereof

The present application relates to a kind of preparation method of nitrogen-oxygen co-doped nanoporous carbon material and its application, with the following steps: resorcinol, polyaspartic acid potassium, polyvinyl alcohol, 4-dimethylaminopyridine are dissolved in distilled water stirring 10~60 minutes, then add sepiolite powder, ultrasonic oscillation at room temperature 30~60 minutes, finally add formaldehyde aqueous solution, seal, continue ultrasonic oscillation 1~3 hours, obtain gel product;The gel product obtained is dried to obtain intermediate;The intermediate obtained is carbonized to obtain black product;The black product obtained is pickled and washed with water, dried to obtain nitrogen-oxygen co-doped nanoporous carbon material.The porous carbon material obtained by the present application has large specific surface area and strong adsorption capacity, and the preparation method has high reaction yield.
Owner:ENERGY RESOURCES INST HEBEI ACADEMY OF SCI

Urease activity detection method based on non-reversible reaction of dopamine and resorcinol

PendingCN121384899AFluorescence/phosphorescenceReversible reactionHydrolysis
The invention discloses a urease activity detection method based on a non-reversible reaction of dopamine and resorcinol. The urease activity detection method comprises the following steps: mixing a sample to be detected, a buffer solution with the pH value of 7.0 and a urea solution with a certain concentration; adding a certain amount of dopamine and resorcinol into the mixed solution, under the condition of 25-45 DEG C, catalyzing urea hydrolysis by urease, causing the pH value of the surrounding area of the urease to rise so as to form a local alkaline environment, further inducing the reaction of the dopamine and the resorcinol to generate a blue fluorescent substance, and adding excessive hydrochloric acid to terminate the reaction after the reaction is carried out for 40-120 minutes; and detecting the fluorescence intensity of the reaction liquid by using a fluorospectro photometer, and calculating the urease activity in the sample according to a fluorescence intensity-urease concentration standard curve. The urease activity detection method based on the reaction of dopamine and resorcinol has the advantages of high detection speed, high sensitivity, good selectivity and the like.
Owner:NANHUA HOSPITAL AFFILIATED TO UNIV OF SOUTH CHINA +1

Ploroglucinol meroterpenoids Hypericmoses A and B, and preparation method and application of phloroglucinol meroterpenoids Hypericmoses A and B

The invention relates to phloroglucinol meroterpenoid compounds Hypercm A and B and a preparation method and application thereof, and belongs to the field of medical chemistry, the phloroglucinol meroterpenoid compounds Hypercm A and B are extracted and separated from Hypericum acalyx branches and leaves for the first time, and the structural formulas of the phloroglucinol meroterpenoid compounds Hypercm A and B are formula (I) and formula (II). The phloroglucinol meroterpenoids Hypericmoses A and B and pharmaceutically acceptable auxiliary materials have the advantages that the phloroglucinol meroterpenoids Hypericmoses A and B have obvious inhibition effects on HepG2 cells induced by oleic acid (OA) and have application potential in the field of lipid-lowering medicines, and the invention further relates to a pharmaceutical composition which comprises the phloroglucinol meroterpenoids Hypericmoses A and B and pharmaceutically acceptable auxiliary materials and has lipid-lowering effects.
Owner:THE KEY LAB OF CHEM FOR NATURAL PROD OF GUIZHOU PROVINCE & CHINESE ACADEMY OF SCI

Ultrahigh-water-permeability polyester reverse osmosis membrane based on artificial water channel and preparation method of ultrahigh-water-permeability polyester reverse osmosis membrane

The invention discloses an ultra-high water permeability polyester reverse osmosis membrane based on an artificial water channel and a preparation method of the ultra-high water permeability polyester reverse osmosis membrane. The preparation method comprises the following steps: carrying out demethylation reaction on full-methoxylated phenyl extended calix [4] resorcinol aromatic hydrocarbon (Me-ExR4) to prepare a full-hydroxylated phenyl extended calix [4] resorcinol aromatic hydrocarbon (OH-ExR4) water channel, preparing an aqueous solution containing OH-ExR4 by taking OH-ExR4 as a water-phase monomer for interfacial polymerization, wetting the surface of a base membrane with the aqueous solution containing OH-ExR4, and carrying out surface modification on the surface of the base membrane so as to obtain the expanded calix [4] resorcinol aromatic hydrocarbon. And covering the surface of the base membrane with an n-hexane solution of trimesoyl chloride, and carrying out OH-ExR4 mediated acylation reaction to prepare the ultra-high water permeability polyester reverse osmosis membrane based on the artificial water channel. OH-ExR4 pore channels are used as main membrane pores of the polyester reverse osmosis membrane to induce chain transmission of water molecules, so that the membrane is endowed with ultrahigh water permeability. In the application amplification process of the ultrahigh water permeability polyester reverse osmosis membrane formula based on the artificial water channel, only the traditional m-phenylenediamine aqueous phase solution needs to be replaced by the OH-ExR4 aqueous solution, the whole membrane preparation process is not changed, and industrialization is easy.
Owner:TONGJI UNIV

Sheet mask containing isobutyramidothiazolyl resorcinol composition

The present invention relates to a cosmetic product, said product consisting of a substrate based on cellulose fibers impregnated with a cosmetic composition containing N-[4-(2,4-dihydroxyphenyl)-1,3-thiazol-2-yl]-2-methylpropanamide (INCI: isobutyramidothiazyl resorcinol).
Owner:BEIERSDORF AG

Impact-resistant toughened polypropylene and preparation process thereof

The invention relates to the technical field of polypropylene, and discloses impact-resistant toughened polypropylene and a preparation process thereof.The impact-resistant toughened polypropylene is prepared from 5-allylresorcinol, isocyanate and polypropylene as raw materials, a compatilizer carbamate grafted polypropylene is prepared, then a uniform mixture of polypropylene, an aromatic polyurethane elastomer and the compatilizer is extruded through a twin-screw machine, and the impact-resistant toughened polypropylene is obtained. And granulating to obtain the impact-resistant toughened polypropylene. A benzene ring and a plurality of carbamate groups contained in a molecular chain of the compatilizer have good compatibility with an aromatic polyurethane elastomer; the grafted polypropylene chain segment also has good compatibility with the polypropylene matrix, so that an efficient mixing and dissolving effect is realized between the polypropylene and the polyurethane elastomer, the polyurethane elastomer is uniformly dispersed in the polypropylene matrix, cavitation is generated under the stress effect, the matrix strain is effectively released, the yield stress of the polypropylene is reduced, and the mechanical property of the polypropylene is improved. And the shear yield of the matrix is promoted, so that the notch impact strength and other mechanical properties of the material are remarkably improved.
Owner:JIEYANG XUNMEI ELECTRIC CO LTD

Composition and application thereof

PendingCN121818406ACosmetic preparationsToilet preparationsPhoto agingUva light
The invention discloses a composition and application thereof, and relates to the technical field of biological medicines and cosmetics. The invention specifically discloses an application of a composition comprising phenylethyl resorcinol and benzylidene dimethoxy dimethyl indanone in the aspects of oxidation resistance, light aging resistance and wrinkle resistance. The expression level of the HO-1 gene can be synergistically improved, and an excellent endogenous anti-oxidation effect is achieved; moreover, the polypeptide also has excellent tightening and anti-wrinkle effects, can synergistically improve the expression level of the COL-1 gene, inhibit the expression level of the MMP-1 gene and improve the expression level of the ELN gene especially in the aspect of UVA light aging resistance, and has the potential of being applied to cosmetics, kits and the like.
Owner:GUANGZHOU HUANYA COSMETIC SCI & TECH CO LTD

Preparation method and application of three-dimensional self-supporting phenolic resin derived carbon-coated carbon nanotube sponge

A preparation method of a three-dimensional self-supporting phenolic resin derived carbon (at) carbon nanotube sponge comprises the following steps: step 1, injecting a ferrocene and dichlorobenzene carbon source solution into a reaction furnace in a hydrogen / argon mixed atmosphere to obtain a carbon nanotube sponge; step 2, dissolving resorcinol and hexamethylenetetramine in the deionized water; cutting a carbon nanotube sponge into proper small blocks, putting the small blocks into the mixed solution, transferring the small blocks into an oil bath pan, carrying out stirring heat treatment / autoclave heat treatment for a period of time, standing overnight, and cooling to room temperature, so as to obtain resorcinol and hexamethylenetetramine prepolymer coated carbon nanotube sponge; step 3, taking out the resorcinol and hexamethylenetetramine prepolymer coated carbon nanotube sponge, washing, and then freeze-drying to maintain the three-dimensional porous network structure; and finally, carrying out high-temperature annealing treatment to obtain the three-dimensional self-supporting phenolic resin derived carbon-coated carbon nanotube sponge. The integrated self-supporting composite electrode is successfully constructed through a three-dimensional network in-situ synthesis process.
Owner:SHAANXI UNIV OF SCI & TECH

A full-link whitening and freckle-removing liposome and a preparation method thereof

PendingCN122440475AYeast ProteinsCell membrane
The present application relates to the field of cosmetic technology, and more particularly to a full-link whitening and freckle-removing liposome and a preparation method thereof, the liposome comprising the following components: an aqueous phase, a membrane material and an oil phase. In the preparation process, 4-butyl resorcinol, nonapeptide-1, acetylchitosamine and ascorbic acid tetraisopalmitate are combined to form a full-link effect of signal inhibition-synthesis blockage-blocked conversion-metabolic acceleration, and a multi-target whitening and freckle-removing system is constructed. In addition, tranexamic acid, hydrolyzed yeast protein and schizophyllan are combined to synergistically make the finished product have excellent soothing and moisturizing effects. Furthermore, the finished product is prepared into a liposome capable of encapsulating active ingredients, which effectively improves the stability of the active ingredients, prevents their oxidation and inactivation, and the liposome structure is highly similar to the human cell membrane, is easy to penetrate the keratin layer gap, realizes targeted delivery to the deep layer of the epidermis, and makes the active ingredients truly act on the required site.
Owner:GUANGZHOU UNICO TECHNOLOGY DEVELOPMENT CO LTD +1

Eutectic solvent composition for efficiently extracting phenolic compounds and preparation method of eutectic solvent composition

The invention belongs to the technical field of environmental engineering and chemical separation, and particularly relates to a deep-eutectic solvent composition for efficiently extracting phenolic compounds and a preparation method of the deep-eutectic solvent composition. The deep-eutectic solvent composition for efficiently extracting the phenolic compounds, provided by the invention, consists of a hydrogen bond acceptor and a hydrogen bond donor in a molar ratio of (1-2): (1-9), the hydrogen bond donor comprises n-caprylic acid or n-hexyl alcohol; the hydrogen bond receptor comprises 1-ethyl-3-methylimidazole chloride or tetrabutylammonium bromide. The eutectic solvent composition has the advantages of high partition coefficient, low viscosity, high selectivity, rapid phase separation, environmental friendliness and the like, can efficiently extract phenol, resorcinol, o-cresol, m-cresol and p-cresol, and has single-stage extraction efficiency gt; the regeneration rate is high, and the method is suitable for high-concentration phenolic wastewater, polyhydroxy phenolic wastewater, continuous process and low-toxicity emission requirement scenes.
Owner:UNIV OF JINAN

A method for preparing an ultra-low profile thick electrolytic copper foil

The present application relates to a kind of preparation methods of ultra-low profile thick electrolytic copper foil, comprising: i. adding composite additive in foil electrolyte, the composite additive is composed of phenylethyl resorcinol, sodium thiosulfate and diallyl disulfide;II. Adding bismuth sulfate as inorganic additive in roughening solution of surface treatment process.The ultra-low profile thick electrolytic copper foil prepared by the present application has lower surface roughness, and the actual effective copper thickness is close to the theoretical value. Under the same 2-3Oz thickness specification, the effective thickness of the copper foil is thicker than the conventional RTF copper foil. In the PCB circuit, it shows low resistance, less power consumption and better heat dissipation performance, solving the technical problems of high power loss and poor heat dissipation performance under AI high computing power.
Owner:JIUJIANG TELFORD ELECTRONICS MATERIAL CO LTD +1

Biomass and hetero-calixarene-based degradable polymer material with micropores as well as preparation method and application thereof

The invention discloses an intrinsic micropore degradable polymer material based on biomass and hetero-calixarene and a preparation method and application thereof.The method comprises the steps that firstly, cyanuric chloride and resorcinol serve as raw materials, and oxygen atom bridged hetero-calixarene macrocyclic molecules are synthesized in one step under the alkaline condition through a one-pot method; then introducing the lignin derivative into oxygen atom bridged hetero calixarene by utilizing an aromatic nucleophilic substitution reaction on a triazine ring in a macrocyclic molecule, and carrying out a condensation reaction on the obtained multi-aldehyde functionalized oxygen atom bridged hetero calixarene and polyfunctional mercaptan under an acidic condition to obtain the target degradable polymer material. When in use, the material is directly put into an aqueous solution of elemental iodine, iodine negative ions and divalent mercury ions for adsorption. The removal rate of the material to low-concentration iodine simple substances, iodine negative ions and divalent mercury ions can reach 90% or above, and the material after adsorption can be repeatedly used after being washed by an acidic aqueous solution. The material can be degraded under an alkaline condition.
Owner:HUNAN INSTITUTE OF ENGINEERING

A covalent organic framework membrane for waste acid recovery and power generation, and a preparation method and application thereof

This invention provides a covalent organic framework membrane for waste acid recovery and power generation, its preparation method, and its application, relating to the field of wastewater separation and recovery technology. The invention utilizes a PaTp-TMC membrane formed on a substrate surface using p-phenylenediamine, trialdehyde resorcinol, and trimesoyl chloride. This covalent organic framework membrane exhibits high selectivity and can achieve high efficiency for H+ ions. + Its ultra-fast transport and efficient retention of other ions enable it to simultaneously complete two processes: waste acid recovery and power generation (osmotic energy conversion), greatly improving the efficiency of process applications.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1

Preparation method of phenolic aldehyde coated silicon oxide aerogel plate

The invention relates to a preparation method of a phenolic aldehyde coated silicon oxide aerogel plate, which comprises the following steps: preparing phenolic aldehyde reticular aerogel from resorcinol, formaldehyde, an organic solvent, 3-aminopropyltriethoxysilane and a columnar array template, and compounding the phenolic aldehyde reticular aerogel as a base material with silicon oxide aerogel. The silicon oxide aerogel is coated with phenolic aldehyde, so that the problem that the mechanical property of the silicon oxide aerogel is insufficient is solved. And compared with the traditional fibrofelt-reinforced silicon oxide aerogel, the phenolic aldehyde-coated silicon oxide aerogel has lower heat conduction familiarity and more excellent heat preservation and heat insulation effects. Wide application prospects are realized in the fields of building heat insulation, new energy automobile battery heat protection and the like.
Owner:SPACE SEAHAWKS ZHENJIANG SPECIAL MATERIAL CO LTD

Synthesis method of bis-ethyl hexyloxyphenol methoxyphenyl triazine

The invention discloses a synthesis method of bis-ethyl hexyloxyphenol methoxyphenyl triazine, which relates to the technical field of organic chemistry, and comprises the following steps: preparing an intermediate I, putting zinc chloride into reaction, adding xylene for dispersion, dropwise adding the intermediate I, resorcinol and xylene solvent to obtain a yellow intermediate II crude product, and then adding the yellow intermediate II crude product into the reaction kettle to obtain the bis-ethyl hexyloxyphenol methoxyphenyl triazine. Adding the intermediate II, a xylene solvent, an acid-binding agent, chloro-isooctane and bromo-isooctane into a reaction kettle, carrying out reaction treatment to obtain a high-purity product, and carrying out sampling detection on the step 1, the step 2 and the step 3. According to the synthesis method of the bis-ethyl hexyloxyphenol methoxyphenyl triazine, p-bromoanisole and chloro-isooctane or bromo-isooctane are adopted as raw materials, the production cost is reduced, xylene is a single solvent, the problem that a mixed solvent is difficult to recycle is solved, anhydrous aluminum chloride or anhydrous zinc chloride is adopted as a catalyst, and a recrystallization technology is adopted, so that the yield of the bis-ethyl hexyloxyphenol methoxyphenyl triazine is increased. The purity of the product is improved, and the bis-ethyl hexyloxyphenol methoxyphenyl triazine with higher purity is prepared.
Owner:SANMENXIA AOKE TECH CO LTD