37 results about "Oleyl alcohol" patented technology

The invention relates to a ligand-induced room-temperature ultrathin magnetic nanosheet synthesis preparation method, which comprises: mixing a metal-ligand solution and an anion-ligand solution, and carrying out a heating reaction to obtain a ligand-induced room-temperature ultrathin magnetic nanosheet, wherein the metal-ligand solution comprises a Cu source, a Cr source and a first ligand; the anion-ligand solution comprises an anion X source and a second ligand; x is Se or Te; the first ligand is selected from one or two of oleylamine or oleyl alcohol; the second ligand is selected from one of oleylamine or tri-n-octylphosphine. Compared with the prior art, the method has the advantages that specific crystallographic orientation is stabilized by adjusting the adsorption capacity of ligands and surface ions in an organic liquid phase synthesis mode, anisotropic growth is guided, and the problems that in the prior art, room-temperature ultrathin nanosheet preparation excessively depends on substrate growth, and the steps are tedious are solved.

The invention relates to three-dimensional shaping hair mud with high filling power and a preparation method of the three-dimensional shaping hair mud, and belongs to the technical field of daily chemicals. The hair mud comprises the following components in percentage by mass: 4-6% of a main setting agent, 0.1-0.3% of an auxiliary setting agent, 30-40% of an emulsifier, 3-10% of a humectant, 3-10% of a thickener, 1-5% of synthetic wax, 1-4% of an adsorbent, 1-2% of a preservative, 0.5-1.5% of oleyl alcohol polyether-10 hydrate, 0.5-2% of acceptable auxiliary materials in the hair mud and the balance of water. The main setting agent is composed of a VP / VA copolymer, lauryl trimethyl ammonium chloride, sodium hydrogen sulfite and water, and the auxiliary setting agent is composed of water, polyquaternium-11, phenoxyethanol and caprylyl glycol. The hair mud disclosed by the invention not only has excellent bulkiness, lasting shaping and cleanliness, but also remarkably improves the tenderness and stability of a product, and provides better user experience.

The invention relates to MCT oil / alcohol compositions without visible clouding or phase separation between the MCT and alcohol components at room temperature. The invention encompasses MCT oil / alcohol compositions containing MCT oil, alcohol, and water. The MCT oil / alcohol compositions can be used for mixing oil-soluble, alcohol-soluble, and water-soluble compounds, and for lubricating, disinfecting, sterilizing, cleaning, and coating surfaces.

The invention discloses a method for improving dispersity and thermal stability of insoluble sulfur, and belongs to the technical field of sulfur processing and production. According to the technical scheme, the preparation method comprises the following steps: 1) mixing naphthenic oil, a dispersant, a stabilizer and a compatibilizer to obtain a mixed material; the dispersing agent is one or more of dithiobenzothiazole, zinc stearate, dioctyl phthalate, polyethylene glycol monolaurate, oleyl alcohol and fatty alcohol-polyoxyethylene ether; the dispersing agent is one or more of dithiobenzothiazole, zinc stearate, dioctyl phthalate, polyethylene glycol monolaurate, oleyl alcohol and fatty alcohol-polyoxyethylene ether; the compatibilizer is one or more of ethylene propylene diene monomer, EVA (Ethylene Vinyl Acetate) resin and liquid butadiene rubber; and 2) mixing the mixed material with an oil-free insoluble sulfur semi-finished product, and carrying out oil filling treatment to obtain the insoluble sulfur. The insoluble sulfur prepared by the method provided by the invention not only has good dispersibility and thermal stability, but also is simple and feasible in process flow, and is beneficial to improving the production efficiency.

The invention discloses metal cooling liquid for titanium alloy cutting machining and a preparation method of the metal cooling liquid, and belongs to the technical field of metal machining liquid. The cooling liquid consists of the following components in percentage by mass: 20-30% of base oil, 0.5-1.5% of surface-modified hexagonal boron nitride nanoparticles, 15-25% of a compound emulsifier, 5-10% of an extreme pressure lubricant and the balance of other auxiliaries and water, wherein the composite emulsifier is a compound of polyoxyethylene oleyl alcohol ether and phosphate, nano h-BN is dispersed in an oil phase through reverse phase titration emulsification, then a water phase is slowly dropwise added into the oil phase for emulsification, enrichment of h-BN nano particles on an oil-water interface is remarkably promoted, and therefore the lubricity, the cooling efficiency and the stability of the cooling liquid are greatly improved. The cooling liquid prepared by the invention can effectively reduce the cutting temperature and the friction coefficient, remarkably prolong the service life of a cutter and improve the surface quality of a workpiece, and is environment-friendly in formula and long in service life.

The application provides a drilling fluid flow pattern regulator suitable for drilling under Antarctic ice, and a preparation method and application thereof, and belongs to the technical field of polar drilling. The flow pattern regulator is prepared from the following raw materials: 4-tert-butylstyrene, carboxylic acid, acrylic ester monomer, oleyl alcohol, concentrated sulfuric acid and initiator. The carboxylic acid is one of ricinoleic acid or phthalic acid; the acrylic ester monomer is one of 2-hydroxyethyl acrylate or 2-hydroxy-3-phenoxypropyl acrylate; and the initiator is one of azobisisobutyronitrile or benzoyl peroxide. The raw material composition of the flow pattern regulator and the preparation method are simple and low in cost. The flow pattern regulator can effectively improve the ultralow-temperature rheological property of the drilling fluid, so that the drilling fluid has the advantages of low viscosity, high dynamic shear force, excellent cuttings (ice cuttings and rock cuttings) carrying and suspending performance and the like under ultralow temperature, and is suitable for drilling under Antarctic ice.

This invention provides a method and system for determining the interfacial properties of an oil-alcohol two-phase system. The method includes the following steps: adding an oil phase solution dropwise to an alcohol phase solution to obtain a mixed solution; recording the total volume and number of drops of the oil phase solution added; calculating the interfacial tension between the oil phase solution and the alcohol phase solution based on the total volume and number of drops; stirring the mixed solution to form an emulsion; calculating the Soder mean diameter based on the droplet size in the emulsion; and calculating the interfacial area between the oil phase solution and the alcohol phase solution based on the dispersed phase volume fraction and the Soder mean diameter. This method can simultaneously obtain two key parameters: interfacial tension and interfacial area, thereby comprehensively characterizing the interfacial properties of the liquid-liquid two-phase system.

This application discloses a solder paste with high-temperature resistant post-soldering residue and its preparation method. The solder paste comprises solder and flux in a weight ratio of (8-9):(1-2). The solder comprises a tin-bismuth alloy and halloysite nanotubes modified with a titanate coupling agent. Based on the flux, the flux comprises the following raw materials in parts by weight: 35-65 parts composite rosin; 35-55 parts solvent; 5-15 parts tartaric acid; 5-10 parts thickener; 1-3 parts corrosion inhibitor; 2-4 parts antioxidant; and 2-3 parts oleyl alcohol polyoxyethylene ether. The high-temperature resistant post-soldering residue solder paste provided by this application has the advantages of high temperature resistance, low spatter, and good wettability. Furthermore, the soldering effect is hard and firm, with full and bright solder joints. In addition, the preparation method provided by this application has the advantages of simplicity, ease of operation, and suitability for large-scale production and application.

The invention belongs to the technical field of base oil preparation, and provides bio-based polyol base oil and a preparation method thereof. The preparation method comprises the following steps: firstly, modifying polypropylene glycol by utilizing epoxidized soybean oil through catalysis of Lewis acid to prepare an epoxidized soybean oil modified polyether component; meanwhile, bio-based azelaic acid and branched chain alcohol are subjected to a high-temperature esterification reaction under the action of a catalyst, and a dibasic acid ester component with excellent low-temperature performance is prepared; in addition, citric acid is taken as a core framework and firstly reacts with oleyl alcohol to form an oil-soluble main body, then a benzoyl group is grafted and substituted by utilizing a hydroxyl site in the center, and finally an anti-wear metal passivation functional group containing a sulfur and nitrogen heterocyclic ring is introduced into a side chain through a thiol-ene reaction; the epoxidized soybean oil modified polyether, dibasic acid ester, a multifunctional additive and poly-alpha-olefin base oil are compounded, homogenized and blended to obtain a target product, and the prepared base oil has the advantages of a bio-based source and high-performance synthetic oil and has good lubricity and environmental friendliness.

The invention discloses a solubilizing agent and a preparation method thereof for improving the alkali resistance of an industrial cleaning active agent, and belongs to the field of cleaning active agent alkali resistance research technology. The solubilizing agent is compounded by a carboxylic acid compound, benzenesulfonate, alkyl glycoside 0810, hydrogenated castor oil, sodium dodecyl diphenyl ether disulfonate, an alcohol ether solvent, N, N-dimethyldecylamide DMDA, a phosphate active agent, oleyl alcohol polyoxyethylene ether 1602, carboxymethyl cellulose and urea; each component acts synergistically, an intermolecular force can occur, and the solubilizing effect of the industrial cleaning active agent in high alkali is synergistically improved. The solubilizing agent has a low modification temperature, and only 50 degrees can be used without high temperature heating, so it is low in cost and simple to operate.

The present application discloses a flaky iron phosphate and its preparation method and application, relating to the technical field of lithium-ion positive electrode materials. The preparation method of the flaky iron phosphate comprises the following steps: uniformly mixing oleyl alcohol and a lower alcohol having 1-4 carbon atoms, sequentially adding a trivalent iron salt solution and a solution containing phosphate to obtain a first solution; subjecting the first solution to a hydrothermal reaction, and after completion of the reaction, filtering, washing, drying, and calcining the product to obtain the flaky iron phosphate. The lithium iron phosphate obtained by the flaky iron phosphate prepared by the method disclosed herein has good charge and discharge performance as a positive electrode material for batteries.

The invention relates to the technical field of functional cosmetics, and discloses a rare earth sunscreen emulsion, which comprises the following components in percentage by mass: (a) an oil phase component: 5.0 to 15.0 percent of caprylic acid / capric triglyceride, 1.0 to 4.0 percent of cetostearyl alcohol, 0.5 to 2.0 percent of oleyl alcohol polyether-3 and 1.0 to 3.0 percent of oleyl alcohol polyether-5; (b) a water phase component: 1.0%-10.0% of AgNPs (at) composite powder, 2.0%-8.0% of glycerol, 0.1%-0.5% of xanthan gum and the balance of deionized water; (c) a preservative: 0.5%-1.0% of phenoxyethanol, and 0.1%-0.5% of ethylhexylglycerin; the oil phase component further comprises 0.1%-1.0% of tocopheryl acetate; the xanthan gum in the water phase component is replaced by 0.05 to 0.3 percent of carbomer; and the preservative further comprises 0.05 to 0.2 percent of capryloyl hydroximic acid. By means of the four-stage composite structure design, efficient cooperation of ultraviolet / blue light broad-spectrum protection, long-acting moisturizing and antibacterial functions is achieved, a green reduction technology and a bionic interface modification technology are combined, and product safety and environmental adaptability are remarkably improved.

The application relates to the technical field of metal composite wire processing and manufacturing, and discloses a drawing forming preparation process of a copper-clad steel composite wire, which comprises the following steps: blending pentaerythritol tetraoleate, a thermal response phase change polymer concentrate, oleyl alcohol phosphate, a boronized fatty acid diethanolamide ester and N,N-bis (2-ethylhexyl) -4-methyl-1H-benzotriazole-1-methylamine into a thermal response type composite drawing liquid; pretreating and drying the surface of the wire; preheating through medium-frequency induction, controlling the temperature difference between the steel core and the copper layer to be not more than 15 DEG C; making the drawing liquid cover the wire from the annular liquid supply cavity on the inlet side of a pressure die, and making the wire sequentially pass through a water-cooled pressure die, a sealed transition cavity and a heating working die, so that plasticity is completed in the working die; cooling after ejection, blowing dry through an annular high-pressure air knife and winding. The technical scheme that the medium-frequency induction preheating is adopted and the temperature difference between the steel core and the copper layer is controlled to be within 15 DEG C achieves the technical effect of reducing the difference in deformation resistance of the bimetal.

The invention relates to a lipidosome composition containing centella asiatica extract as well as a preparation method, a preparation and application of the lipidosome composition, and belongs to the field of medical instruments, the field of medical or dressing preparations, the technical field of biological medicine manufacturing and the technical field of preparation manufacturing. The lipidosome composition provided by the invention comprises a supramolecular compound, a lipidosome bilayer, a nonionic surfactant and a solvent, wherein the supramolecular compound is coated with the liposome bimolecular layer; the supramolecular compound comprises an active component, a stabilizer and an electrostatic cross-linking agent, the active component comprises a centella asiatica extract; the stabilizer comprises Ectoine; the electrostatic cross-linking agent comprises L-arginine; the lipidosome bilayer is composed of lecithin; the non-ionic surface active agent is prepared from oleyl alcohol polyether-20; the solvent comprises polyol and water; the polyhydric alcohol comprises dipropylene glycol. The liposome composition provided by the invention has excellent stability and excellent skin repairing and anti-wrinkle effects.

The present application relates to the technical field of asiatic acid, and particularly relates to an asiatic acid derivative and a preparation method. The asiatic acid derivative provided by the present application has R which is an alkyl group formed by removing a hydroxyl group from a saturated or unsaturated monohydric alcohol, and the saturated or unsaturated monohydric alcohol includes one of ethanol, octanol, hexadecanol, stearyl alcohol, 2-hexyl-1-decanol, decyltetradecin, oleyl alcohol, cis,cis-9,12-octadecadienol and bisabolol. The asiatic acid derivative of the present application has higher water solubility and oil solubility, especially oil solubility, so that the asiatic acid derivative has obviously enhanced liposolubility, is easily soluble in natural oil, alkane and other ester solvents, and has a significant inhibitory effect on EDNRA and TRPV1 and obviously enhanced bioactivity. The asiatic acid derivative of the present application has high availability, and the asiatic acid derivative has no safety risk.

The present invention provides a novel method for producing 1,9-nonane diol, with which 1,9-nonane diol can be efficiently produced with little environmental burden. This method for producing 1,9-nonane diol includes: (1) a step for blowing ozone gas into oleyl alcohol in such a way that ozone gas is blown until the ozone gas concentration at an outlet exceeds half the ozone gas concentration at an inlet, and the acid value of a treated product that has been treated with the ozone gas is 15 mg KOH / g or less; and (2) a step for hydrogenating, in the presence of a nickel catalyst, the treated product that has been treated with the ozone gas.

The invention relates to the field of medical instruments, the field of medical or dressing preparations, the technical field of biological medicine manufacturing and the technical field of preparation, in particular to a supramolecular anti-aging composition suitable for people with sensitive skin and a preparation method and application of the supramolecular anti-aging composition. Active ingredients, an inclusion material, an emulsifier and a solvent; the active ingredients are prepared from silymarin, silanetriol and phytol; the silymarin comprises silibinin, silymarin and silymarin; the silymarin comprises silybin, silymarin and silymarin; the inclusion material comprises at least one of hydroxypropyl-alpha-cyclodextrin and hydroxypropyl-beta-cyclodextrin, and the inclusion material comprises at least one of hydroxypropyl-alpha-cyclodextrin and hydroxypropyl-beta-cyclodextrin; the emulsifying agent is prepared from at least one of oleyl alcohol polyether-20, Tween 80 and PPG-13-decyl tetradecyl alcohol polyether-24; the solvent comprises water and polyhydric alcohol. The composition provided by the invention has excellent anti-aging effect and stability, has a good effect of reducing allergy, and is suitable for sensitive people.

This application relates to the field of electroplating solution processing technology, and more specifically, to an electroplating solution for filling holes in HDI boards and its preparation method. The solution is prepared from the following raw materials in parts by weight: 120-240 parts copper salt, 10-15 parts complexing agent, 5-10 parts leveling agent, 45-70 parts sulfuric acid, 10-20 parts stabilizer, 10-20 parts surfactant, 5-10 parts pH adjuster, 8-12 parts accelerator, 8-12 parts brightener, and 1000 parts water. The stabilizer is composed of 2-mercaptobenzothia and dimethyldimercaptoacetic acid isooctyl tin. The surfactant is composed of oleyl alcohol polyoxyethylene carboxylate, hexadecylpyridine chloride, and sodium cocoyl glutamate. The electroplating solution for filling holes in HDI boards prepared using this formula effectively solves the problems of poor permeability and uneven current distribution encountered in blind hole copper filling during HDI board electroplating, thereby significantly improving the quality and reliability of the plating layer.

This invention discloses a method for improving the dispersibility and thermal stability of insoluble sulfur, belonging to the field of sulfur processing and production technology. The technical solution includes: 1) mixing naphthenic oil, a dispersant, a stabilizer, and a compatibilizer to obtain a mixture; the dispersant is one or more of dithiodibenzothiazole, zinc stearate, dioctyl phthalate, polyethylene glycol monolaurate, oleyl alcohol, and fatty alcohol polyoxyethylene ether; the compatibilizer is one or more of ethylene propylene diene monomer (EPDM), EVA resin, and liquid butadiene rubber; 2) mixing the mixture with unfilled insoluble sulfur semi-finished product and performing an oil-filling treatment to obtain insoluble sulfur. The method provided by this invention not only produces insoluble sulfur with good dispersibility and thermal stability, but also has a simple and easy-to-implement process, which is beneficial for improving production efficiency.

The application provides a cyclopirox olamine lotion formula and a preparation method, relates to the field of antibacterial lotions, and the raw materials of the cyclopirox olamine lotion include cyclopirox olamine, sodium laureth sulfate, cocamidopropyl betaine, cocamide DEA, hexylene glycol, oleyl alcohol, polysorbate, polyquaternium, disodium hydrogen phosphate dodecahydrate, citric acid, essence and water. The preparation method is simple, the prepared cyclopirox olamine lotion can solve the problems of instability, poor adhesive peeling strength and the like of traditional ointments, the foam is more abundant, the drug efficacy is facilitated to play, and the use feeling, such as combing property, cleaning effect, after-washing freshness and dandruff-removing and itching-relieving effect, is better.

The invention belongs to the technical field of dye paste, and particularly relates to ammonia-free dye paste and a preparation method thereof. The ammonia-free dye paste is prepared from the following components in percentage by mass: 10 to 20 percent of cetostearyl alcohol, 4 to 18 percent of alkaline agent, 0.1 to 5 percent of oleyl alcohol polyether-30, 2 to 10 percent of oleic acid, 1 to 5 percent of oleyl alcohol, 1 to 20 percent of polyquaternium-6, 0.1 to 2 percent of sodium sulfite, 0.1 to 5 percent of essence, 0.1 to 2 percent of sodium erythorbate, 0.1 to 2 percent of chelating agent, 0.1 to 2 percent of oxidized dye intermediate and the balance of water. A cetostearyl alcohol / oleic acid / polyquaternium-6 composite emulsification structure is adopted, ammonia water is omitted, the permeation efficiency of the oxidized dye intermediate is improved through the nonionic-cationic emulsification synergistic effect, the production process is simplified, and the defect that in the prior art, the adaptability of an emulsification system and an ammonia-free formula is insufficient is overcome.

The invention relates to a biomass alcohol-oil mixed fuel and a preparation method thereof, and belongs to the technical field of energy and chemical industry and biomass fuels, and the biomass alcohol-oil mixed fuel comprises the following raw materials by weight: 30-50 parts of methanol; 35 to 55 parts of biomass oil; 10 to 20 parts of a modified solubilizer; 0.5 to 2 parts of a compound auxiliary agent; wherein the modified solubilizer is a grafted copolymer prepared by carrying out alcoholysis reaction on biomass oil and polyhydric alcohol under the action of a basic catalyst to obtain an intermediate and then carrying out ring-opening polymerization reaction on the intermediate and mixed gas consisting of epoxypropane and ethylene oxide under a closed condition; according to the scheme, a proper proportion of epoxypropane chain segments are introduced in the grafting process; different from a graft only containing ethylene oxide, the introduction of side methyl of epoxypropane increases the steric hindrance of a molecular chain, and a thicker solvation layer is formed on an oleyl-alcohol interface.

The invention relates to a multifunctional renovating coating as well as a preparation method and application thereof. The multifunctional renovating coating comprises the following components: pure acrylic emulsion, organic silicon emulsion, modified titanium dioxide, a flame retardant, nano silicon dioxide dispersion liquid, cellulose and the like. Wherein the modified titanium dioxide is prepared by the following steps: carrying out blending reaction on hydroxylated titanium dioxide and isophorone diisocyanate, then carrying out reaction with pentaerythritol triacrylate, and finally carrying out reaction with octafluoroamyl methacrylate, methyl acrylate and oleyl alcohol. Acrylate groups, fluorine chains, long alkyl chains and hydroxyl are introduced into the modified titanium dioxide, and a net structure is formed; wherein the acrylate group can improve the compatibility of all the components; the fluorine chain can improve the hydrophobicity and other properties; a long alkyl chain can further improve hydrophobicity and compatibility; the interaction among the components can be improved by hydroxyl; the net-shaped structure can improve the water resistance and other properties; all the components have a synergistic effect, and all properties of the coating are jointly improved.

The invention relates to a pharmaceutical composition for treating inflammatory dermatosis and a preparation method thereof, and the preparation method comprises the following steps: 1) mixing oleyl alcohol, medium chain triglyceride, propylene glycol, hexadecanol and octadecanol, and heating to 65-75 DEG C to form an oil phase; adding pimerolimus and glyceryl monostearate and glyceryl distearate, and stirring to obtain an oil phase; 2) adding anhydrous citric acid, sodium hydroxide and benzyl alcohol into water, and heating to 65-75 DEG C for dissolving; adding cetostearyl sodium sulfate, and stirring to obtain a water phase; 3) pouring the oil phase into the water phase, maintaining the emulsification temperature at 65-75 DEG C, homogenizing and stirring to form an emulsion; and 4) filling and packaging. Wherein the mixed solution is subjected to homogenization treatment at the speed of 3000rpm for 10 minutes, homogenization is stopped, stirring is continued for 5 minutes at the speed of 25rpm, and the mixed solution is subjected to homogenization treatment at the speed of 3000rpm for 10 minutes again. The ratio of the humectant to the thickening agent in the pharmaceutical composition is creatively adjusted, so that the treatment efficiency of the ointment is greatly improved, and the user experience in the application process of the ointment is also remarkably improved.

The application discloses a low-surface-tension capped polyether ester defoaming agent and a preparation method thereof, and relates to the technical field of defoaming agents.The low-surface-tension capped polyether ester defoaming agent comprises the following raw materials in parts by weight: polyether ester 60-70 parts, emulsifier 3-5 parts, silicon dioxide 2-3 parts, dispersant 1-3 parts, and deionized water 5-10 parts; the emulsifier is generated by the reaction of N-dodecyl succinic anhydride and oleyl alcohol to form an ester compound; the ester compound is generated into an epoxide compound under the action of formic acid and H2O2; the epoxide compound is reacted with N-dodecylmethylamine to form a tertiary amine compound; and the tertiary amine compound is reacted with sodium chloroacetate to form a surfactant.The low-surface-tension capped polyether ester defoaming agent prepared by the application has low surface tension, good defoaming performance and stability.

The application provides a pimecrolimus cream and a preparation method thereof. The pimecrolimus cream is prepared from an oil phase and an aqueous phase, and the preparation method comprises the following steps: (1) oil phase preparation: adding oleyl alcohol, medium-chain triglyceride, propylene glycol, hexadecanol, octadecanol and glycerol monostearate into an oil phase container in sequence, heating in a water bath and stirring to dissolve; after complete dissolution, adding pimecrolimus and stirring to dissolve, and after complete dissolution, keeping warm for standby use; (2) aqueous phase preparation: adding purified water, sodium hydroxide, citric acid, benzyl alcohol and sodium cetylstearyl sulfate into an aqueous phase container in sequence, heating in a water bath and stirring to dissolve; (3) mixing and emulsifying: slowly adding the oil phase into the aqueous phase, stirring first, and then homogenizing and emulsifying; (4) cooling and filling: stirring and cooling, and filling. The pimecrolimus cream prepared by the method has a low total impurity content, a content close to 100% and good stability, and is beneficial to improving the drug quality.

Improved methods for preparing lepidopteran insect pheromones and structurally related compounds. In one aspect, the invention provides a method for synthesizing a fatty olefin drivative. Methods include use of linear C3-C12 olefin with a delta 9-unsaturated fatty acid alkyl ester in the presence of a Z-selective metathesis catalyst. Alternative methods include contacting jojoba oil or oleic alcohols with a metathesis catalyst.

The application belongs to the technical field of medicine, and particularly discloses a non-surgical, non-filling type wrinkle-removing and anti-aging external use skin-revitalizing oil preparation as well as a preparation method and application thereof. The preparation method of the external use skin-revitalizing oil preparation is as follows: (1) preparing a skin-revitalizing oil alcohol extract freeze-dried powder: dry powders of Pingshou Kuhntiaea sinensis, Pericarpium Citri Reticulatae, Astragalus membranaceus, Angelica sinensis, Boswellia carterii, Herba Epimedii, Scutellaria baicalensis and Phellodendron amurense and borneol are taken in a container according to a certain weight ratio, and then an ethanol solution with a volume fraction of 40-90% is added into the container, and then the mixture is soaked, flash extracted, concentrated, and freeze-dried to obtain the skin-revitalizing oil alcohol extract freeze-dried powder; (2) preparing the skin-revitalizing oil preparation: the skin-revitalizing oil alcohol extract freeze-dried powder and Span 60 are dissolved in edible vegetable oil to obtain an oil phase; and then the oil phase is added dropwise into an aqueous phase obtained by dissolving Tween 60 and glycerol in ultrapure water, and then the mixture is stirred, high-speed sheared and high-pressure homogenized to obtain the skin-revitalizing oil preparation. The external use skin-revitalizing oil preparation has the effect of rapidly reducing the depth and quantity of wrinkles in a short period of time.

This invention provides a method for preparing an esterified defoamer, belonging to the field of organic synthesis technology. The method includes the following steps: C1618 alcohol, oleyl alcohol, maleic anhydride, and a bimetallic cyanide complex are added to a reaction vessel, purged with nitrogen, and heated to 135-150°C. A mixture of propylene oxide and ethylene oxide is first introduced to induce a reaction; after successful induction, the mixture is continuously introduced. After the introduction of the propylene oxide and ethylene oxide mixture is completed, the reaction continues at 140-150°C. After the reaction is complete, nitrogen is pressurized to a pressure of 0.3-0.5 MPa inside the vessel, and the reaction is carried out at 80-130°C for 5-7 hours. Vacuum is then applied, and the temperature is lowered to obtain the esterified defoamer. This method eliminates the need for secondary addition of esterification monomers and esterification catalysts, resulting in a simple and safe reaction process, significantly reduced production costs, and a high esterification rate. The obtained esterified defoamer exhibits good defoaming and foam-suppressing properties.

The present application relates to the field of medical devices, the field of medical or toiletry formulations, the field of biopharmaceutical manufacturing technology and the field of formulation manufacturing technology, in particular to a supramolecular anti-aging composition suitable for sensitive skin population and a preparation method and application thereof. Active ingredients, inclusion materials, emulsifiers and solvents; the active ingredients include: silymarin, silatrane and phytol; the silymarin includes silybin, silychristin and silydianin; the inclusion material includes at least one of hydroxypropyl-alpha-cyclodextrin and hydroxypropyl-beta-cyclodextrin; the emulsifier includes at least one of oleyl polyether-20, Tween 80 and PPG-13-decyltetradecyl alcohol polyether-24; the solvent includes water and polyhydric alcohol. The composition provided by the present application has excellent anti-aging efficacy and stability, and has good effect of reducing allergy, and is suitable for sensitive population.