435 results about "Oil emulsion" patented technology

The invention discloses a water-in-oil emulsion, a preparation method, application, a membrane and a cosmetic product containing the same. The water-in-oil emulsion is prepared from the following components in parts by weight: 0.25 to 50.00 parts of water phase, 0.45 to 80.00 parts of oil phase, 0.025 to 5.00 parts of emulsifier, 1 part of sterol and / or sterol derivative, 0.01 to 30.0 parts of powder and 0 to 3 parts of polymer. The water-in-oil emulsion disclosed by the invention can form a liquid crystal structure which is regularly and orderly arranged in space according to a certain direction, has low film forming continuity, hydrophobicity, flexibility of a wax film and excellent air permeability, and also has certain migration resistance of a high-molecular polymer film, but the brittleness is improved. In addition, the brittleness of a layer of uniform and continuous three-dimensional network structure film formed on the skin by the polymer can be improved, and the flexibility and uniformity are improved.

The invention discloses application of a particle stabilizer, an oil-in-oil Pickering emulsion as well as a preparation method and application of the oil-in-oil Pickering emulsion, and relates to the technical field of emulsion preparation. The particle stabilizer is used for preparing the oil-in-oil Pickering emulsion, and the particle stabilizer is solid insoluble nanoparticles and is selected from one or more of inorganic nanoparticles, organic nanoparticles, composite oleophobic nanoparticles and stimuli-responsive nanoparticles. The preparation method of the oil-in-oil Pickering emulsion comprises the following steps: mixing the first oil phase, the second oil phase and the particle stabilizer, and carrying out an emulsification technology to obtain the oil-in-oil Pickering emulsion. According to the emulsion system prepared by the invention, the oil phase components with different polarity differences are reasonably matched, and the oil phase type is flexibly selected according to specific requirements of target application, so that the environmental adaptability and the function application range of the emulsion can be remarkably improved, and the emulsion system has a good application prospect.

The invention relates to a recyclable easily-degradable macromolecular surfactant for cleaning oily sludge and application of the recyclable easily-degradable macromolecular surfactant. The macromolecular surfactant is prepared by taking acrylamide, methacrylic acid long-chain alkyl ester and tertiary amino substituted methacrylate as raw materials through free radical polymerization. The macromolecular surfactant is dissolved in water to prepare a cleaning solution, and oily sludge can be efficiently eluted. CO2 and N2 are sequentially introduced into the oil-containing emulsion after the oil-containing sludge is cleaned, or diluted hydrochloric acid and a diluted alkali aqueous solution are sequentially added, the hydrophilic-hydrophobic property of the macromolecular surfactant is changed through pH regulation and control, separation of the macromolecular surfactant and an oil phase is achieved, petroleum resources are recycled, and recycling of the cleaning solution containing the macromolecular surfactant is achieved. The residual macromolecular surfactant in the cleaned deoiled sludge can be degraded under the action of environmental microorganisms.

The present invention relates to a composition in the form of a water-in-oil emulsion, including, (a) one or more esters formed from at least one fatty acid having more than 13 carbon atoms; (b) a polymer component including one or more polymerized (iso)butenes; (c) at least about 3% by weight of one or more carbohydrate fatty acid ester emulsifiers; (d) one or more fillers comprising hydrophobic silica; and (e) one or more pigments. The composition is substantially free of silicones & alkanes.

The invention relates to the technical field of preparation of food additives, in particular to a betacyanin microcapsule as well as a preparation method and application thereof. The preparation method comprises the following steps: jointly dissolving sodium alginate and soybean protein isolate in water to obtain an SA-SPI compound; the SA-SPI compound, CaCO3 and betacyanin are mixed, and a water phase is formed; mixing liquid paraffin, glacial acetic acid and Tween 80 to obtain an acetic acid-containing oil phase; mixing the water phase with the acetic acid-containing oil phase to form a water-in-oil emulsion, and standing to form calcium alginate gel beads; the calcium alginate gel beads are subjected to pre-freezing-freeze-drying treatment, and the betacyanin microcapsules are obtained. The prepared betacyanin microcapsule has the characteristics of controllable particle size, high stability and easiness in industrialization, and the application range of betacyanin is widened. In addition, the preparation method disclosed by the invention is safe and simple to operate, has the advantages of low cost and high benefit, and can be directly applied to large-scale production.

Compositions and methods for use provide enhanced surface modification in leather care. In particular, the present disclosure is directed to water-based compositions including a silicone emulsion that delivers cleaning, protective, and preservative qualities.

The invention discloses a preparation method of a self-crosslinking hyaluronic acid microsphere without an exogenous crosslinking agent, which comprises the following steps: activating carboxyl on hyaluronic acid only by using an activator with good biocompatibility, carrying out esterification reaction on the activated carboxyl and hydroxyl on the hyaluronic acid, and curing and crosslinking water-in-oil emulsion at room temperature by continuously stirring to obtain the self-crosslinking hyaluronic acid microsphere without the exogenous crosslinking agent. The self-crosslinking hyaluronic acid microspheres are formed. As an exogenous cross-linking agent is not introduced, hyaluronic acid forms an ester bond through self-crosslinking after being activated instead of forming an amido bond with the exogenous cross-linking agent, and the formation of the ester bond can effectively improve the storage modulus of the hyaluronic acid microspheres. Compared with a commercially available sieved gel product, the self-crosslinked hyaluronic acid microsphere disclosed by the invention has the advantages that the crosslinking degree is higher, the immunogenicity risk of free HA is reduced, the self-crosslinked hyaluronic acid microsphere is suitable for deep or subcutaneous injection of dermis, and a more uniform three-dimensional support is provided.

The application relates to the technical field of phase change material preparation, in particular to a heterocyclic aramid phase change heat storage film and a preparation method thereof. After low-temperature polymerization of heterocyclic aramid fibers is completed, the phase change material is coated in situ, an oil-in-oil emulsion is obtained, water exchange is directly carried out, and after drying, a heterocyclic aramid-based phase change film is obtained. The film is dense, and the coating effect is good. Since the prepared phase change film is an integral film material, the phase change film can be directly applied, the processes such as intermediate drying and resolubilization are avoided, the whole process is simple and efficient, the cycle is short, high-end equipment is not depended on, the production cost is low, the coating density is high, the phase change material can be prevented from leaking during phase change, the phase change film has the properties of flame retardation, temperature resistance, excellent mechanical strength and excellent ultraviolet shielding and aging resistance, and the problems of a complicated preparation process, harsh conditions and high cost of the existing phase change heat storage film are solved.

The present invention relates to a cosmetic composition in the form of a water-in-oil emulsion, comprising, in a physiologically acceptable medium, (i) at least two distinct linear alkanes, each containing from 9 to 14 carbon atoms and differing from each other by at least two carbon atoms, (ii) an emulsifying system comprising at least two distinct polyglycerols and fatty acid esters, which may optionally be (poly)hydroxylated, and (iii) pigments and fillers, wherein the total content of C9 to C14 linear alkanes is at least 12% by weight, preferably at least 15% by weight, relative to the total weight of the composition.

An organopolysiloxane that is represented by formula (1), has a small particle size of a water-in-oil emulsion, has a narrow distribution width, and is excellent in the production of a water-in-oil emulsion having excellent stability over time. [In the formula, R1 are each independently a group selected from C1-20 alkyl groups, C6-20 aryl groups, and C7-20 aralkyl groups.　R2 are each independently a group selected from formulae (2)-(7) (where x4 is an integer of 3-10; y1 is the average of the degrees of polymerization of glycerol groups and is 1-5; and the proportion of groups having the degree of polymerization with the highest content among the glycerol group degrees of polymerization 1-5 to all groups represented by (6) is 90% or more).]

The present application provides a kind of biodiesel drilling fluid and its preparation method and application, the biodiesel drilling fluid includes the combination of water phase, oil phase, emulsifier, wetting agent, organic soil, filtrate reducer and quicklime, and the oil phase is biodiesel;With the biodiesel as oil phase, water phase and other additives are matched, so that the biodiesel drilling fluid obtained has the advantages of environmental protection, low price, low biological toxicity and easy degradation;And under the low addition amount of emulsifier, stable water-in-oil emulsion can still be formed, and it also has the advantages of low oil-water ratio, high viscosity and shear, strong rock-carrying capacity, good rheological property and good suspension stability.

The invention relates to the technical field of cable injection mold body machine heads, in particular to a high-temperature flat small mold body machine head which comprises a mold core and a machine core, the mold core is sleeved with a mold sleeve, the machine core is sleeved with a main body, the mold core and the mold sleeve are both sleeved with the machine core, and a threading hole and a discharging hole used for conveying metal core wires are formed in the center position of the mold core and the center position of the mold sleeve respectively. A wire stabilizing part comprising a bearing end seat and a magnetic suspension end is arranged in the mold core, and the binding part sprays a molding agent to melt wrapping the metal core wire through the high-pressure cavity so as to flatten the surface. The buffer space is arranged, the problem that a machine head needs to be lengthened due to uneven dispersion caused by a taper angle can be solved, high temperature conducted by the machine head can be resisted, abrasion particles do not exist, and pollutants can be purged in the nitrogen environment; therefore, the deionized water or the thin silicone oil emulsion or the UV curing agent in the high-pressure cavity is driven to spray the metal core wire wrapping the melt, and the effects of accelerating curing, flattening the surface and stabilizing the structure are achieved.

The application discloses a method for preparing oil-tea camellia seed oil by alkaline protease and endogenous protease synergistic demulsification, which comprises the following steps: 1) collecting emulsion; 2) extracting endogenous protease; 3) alkaline protease and endogenous protease synergistic demulsification: adding distilled water and alkaline protease into the emulsion for primary enzymolysis, the adding amount of the alkaline protease is 0.5-2% of the weight of the emulsion, the primary enzymolysis time is T1, and 60min<=T1<75min, adding endogenous protease according to 0.6-1.4% of the weight of the emulsion for secondary enzymolysis, the secondary enzymolysis time is T2, and 15min<=T2<=35min, the total time of the primary enzymolysis and the secondary enzymolysis is less than 100min, and oil emulsion is obtained; 4) enzyme inactivation and centrifugation, and oil-tea camellia seed oil is obtained. The alkaline protease and the endogenous protease are used for synergistic demulsification, which can not only improve the demulsification rate and the extraction rate of the oil-tea camellia seed oil, but also inhibit the generation of bitter amino acids, so that the prepared oil-tea camellia seed oil does not contain bitterness, and the flavor and quality of the oil-tea camellia seed oil are improved.

Edible, pourable, fat-containing product, preferably in the form of a water-in-oil emulsion or a full fat product, comprising 40 to 99.9 wt. % liquid vegetable oil; 0.1 to 10 wt. % of hard stock fat; water up to 100 wt. %, wt. % calculated on the total weight of the product, wherein the hard stock fat is free from palm or palm-derived fats or fat fractions; free from hydrogenated fats or fat fractions and has a C22:0 (behenic acid) content of at least 10 wt. %, wt. % calculated on the amount of fatty acids in the hard stock.

The application belongs to the technical field of separation membrane material, and discloses a preparation method of high-crease antibacterial chemical fiber membrane, which comprises the following steps: first, preparing the chemical fiber membrane by electrospinning technology; then, preparing an emulsion, adding 1-20 mL of the emulsion per square centimeter of the chemical fiber membrane, soaking the chemical fiber membrane at 20-50 DEG C for 10-60 min, taking out the chemical fiber membrane, washing the chemical fiber membrane with anhydrous ethanol for 1-3 times, washing the chemical fiber membrane with distilled water for 1-3 times, and drying the chemical fiber membrane at 30-100 DEG C for 3-24 h; then, immersing the chemical fiber membrane in an antibacterial solution, and obtaining the antibacterial chemical fiber membrane after washing and drying. The electrospinning technology is adopted, the method is simple, the structural parameters such as the membrane pore size and the fiber length-diameter ratio are adjustable and have good repeatability, the prepared material is formed by mechanical entanglement of fibers with a diameter of 0.2-20 mu m, the length of the chemical fiber is not less than 10 mu m, the surface is covered with nano-scale creases, and the membrane pore size is 50-3000 nm. The separation efficiency of the prepared material for the water-in-oil emulsion is as high as 99% or more, and the separation efficiency is still higher than 97% after 10 cycles, so the prepared material has a wide application prospect in the field of oil-water separation, especially in the separation of oily leachate in food waste.

The present invention relates to a cosmetic composition in the form of a water-in-oil (W / O) emulsion, comprising a continuous fatty phase comprising at least one hydrocarbon oil with a refractive index greater than equal to 1.4, an aqueous phase dispersed in the continuous fatty phase, at least one emulsifying surfactant with an HLB less than or equal to 8, at least one lipophilic filmforming polymer, at least one ester-terminated polyester polyamide, and at least one coloring material.

To provide a water-in-oil emulsified product for coating a cold confectionery, which is hardly cracked when coating the whole surface of frozen confectionery or a some other cold confectionery, especially, among hydrous chocolates being water-in-oil emulsified products for coating cold confectioneries.SOLUTION: A water-in-oil emulsified product for coating a cold confectionery satisfies all of (A) to (F) described below, and a contained oil and fat component satisfies all of (G) to (I). (A) a non-fat cacao solid content of 8.5-25 wt.%, (B) a pH of 4-6.5, (C) a non-fat milk solid content of 7.5 wt.% or less, (D) an oil and fat content of 30-55 wt.%, (E) a moisture content of 5-25 wt.%, (F) a total content of one or more emulsifiers selected from lecithin and polyglycerol condensed ricinoleate of 1-2.5 wt.%, (G) a blended amount of 38-70 wt.% of random transesterification oil and fat contained as an essential component, (H) a content of a C12-14 saturated fatty acid in a constituent fatty acid of 6 wt.% or less, and (I) a content of SUS triglyceride of 20-50 wt.%.SELECTED DRAWING: None

This invention provides a graphene oxide composite oil displacement agent, its preparation method, and its application. The graphene oxide composite oil displacement agent comprises poly-3-hydroxytyramine and graphene oxide, wherein the poly-3-hydroxytyramine and graphene oxide are chemically bonded. The preparation method includes mixing and reacting 3-hydroxytyramine hydrochloride with graphene oxide. The resulting composite oil displacement agent is applied to tertiary oil recovery. The composite oil displacement agent provided by this invention exhibits excellent hydrophilicity, acid and alkali resistance, and salt resistance. It can form stable water-in-oil emulsions with crude oil over a wide pH range or at high salinity, improving emulsion stability and viscosity. It has strong emulsifying properties, expanding the emulsion sweep volume, and has broad application prospects in low-to-medium permeability reservoirs. The preparation method provided by this invention is simple and highly practical.

Provided is a water-in-oil-in-water (W / O / W) emulsion cosmetic composition prepared by mixing an oil-in-water emulsion and a water-in-oil emulsion, wherein the W / O / W emulsion cosmetic composition has excellent feel of use and moisturizing feel while having excellent emulsion stability even under various temperature conditions, and has an excellent absorption rate of an active ingredient on the skin.

The invention discloses a super-hydrophobic and oleophobic sponge as well as a preparation method and application thereof, and belongs to the technical field of oil-water separation amphiphobic materials. The preparation method comprises the following steps: cleaning a melamine sponge, roughening a sponge skeleton on the sponge skeleton by using an oxidation self-polymerization reaction of dopamine to obtain a sponge containing polydopamine rough particles, and then carrying out grafting modification for 2-5 times by using fluorine-containing silane to obtain the super-hydrophobic and oleophobic sponge. The super-hydrophobic and oleophobic sponge is simple in preparation process, mild in reaction condition, cheap and easily available in raw materials, capable of realizing efficient separation of the water-in-oil type emulsion containing the surfactant, excellent in cyclic separation effect, good in reusability and suitable for popularization and application in the field of water-in-oil type emulsion separation.

The application provides a composite iron phosphate and a preparation method and application thereof, and the preparation method comprises the following steps: (1) mixing nanocellulose, glacial acetic acid, acetic anhydride, perchloric acid and an organic solvent to obtain acetylated nanocellulose through reaction; (2) mixing nanocellulose, TEMPO and sodium bromide with water, adding sodium hypochlorite solution to obtain oxidized nanocellulose through reaction; (3) mixing the oxidized nanocellulose and the acetylated nanocellulose with an acidic aqueous solution, then mixing with an oily solvent to obtain a water-in-oil emulsion; (4) mixing an iron source, a phosphorus source and the water-in-oil emulsion, and then obtaining the composite iron phosphate through sintering treatment after reaction. The application utilizes the different hydrophilic / hydrophobic difference of acetylated and oxidized nanocellulose to induce the generation of a spherical shell-shaped iron phosphate filled with rod-shaped structures, the nanocellulose forms carbon in situ after high-temperature calcination, and the uniform distribution of the carbon layer is realized, and the conductivity is further improved.

The invention discloses a preparation method and application of a polypyrrole-urea resin cross-linked photo-thermal energy storage phase change microcapsule, and aims to solve the problems that an existing photo-thermal conversion material and a phase change energy storage material are compounded, interface bonding between the photo-thermal conversion material and the phase change material is not firm and the like. The preparation method comprises the following steps: 1, pretreating a pyrrole monomer and a phase change material; 2, mixing a phase change material and a pyrrole monomer to prepare an oil phase, and adding the oil phase into the water phase to obtain a water-in-oil emulsion; 3, mixing a ferric chloride solution with the urea formaldehyde prepolymer solution, adjusting the pH value of the system to 3-4, and dropwise adding the mixed solution into the water-in-oil emulsion to obtain a reaction solution; 4, heating and carrying out a cross-linking reaction; 5, blocking and stabilizing; and 6, washing and drying. According to the preparation method disclosed by the invention, simultaneous coating of polypyrrole and urea-formaldehyde resin is realized through a one-step method cooperating with in-situ polymerization, the two polymers form an interpenetrating network structure on an oil-water interface, and the special structure remarkably improves the mechanical strength and thermal stability of the microcapsule.

The non-therapeutic use of a water-in-oil emulsion stick composition comprising a humectant for boosting the natural level of ceramides in the human skin.

The present invention relates to a fat composition comprising at least 30 wt% of stearic acid (C18:0) and at least 45 wt% of saturated fatty acids (SAFA); and wherein the fat composition comprises 1.0 to 8.0 wt% of SSS triglycerides and at most 10.0 wt% of UUU triglycerides, and the weight ratio of S2U triglycerides to SSS triglycerides of the fat composition is 6.0 to 20.0 and the weight ratio of S2O triglycerides to S2L triglycerides is at most 30.0; wherein S is a saturated fatty acid, U is an unsaturated fatty acid, O is oleic acid and L is linoleic acid. The present invention further relates to a fat blend comprising the fat composition as hard stock, wherein the fat blend is further used in a water-in-oil emulsion product, such as a margarine or a spread.

The application relates to a probiotic / arachidonic acid composite microcapsule and a preparation method thereof, and belongs to the technical field of microcapsule preparation, and the specific scheme is as follows: a probiotic / arachidonic acid composite microcapsule comprises wall material and core material, the core material is wrapped in the wall material, the wall material comprises sodium alginate and sodium carboxymethyl cellulose, the core material comprises arachidonic acid and probiotics, the arachidonic acid is dissolved in an oily carrier and forms a water-in-oil emulsion with a probiotic bacterial suspension, the sodium carboxymethyl cellulose wraps water-in-oil emulsion droplets, and the sodium alginate reacts with the sodium carboxymethyl cellulose to generate a gel film microcapsule wall material. The method for preparing the probiotic / arachidonic acid composite microcapsule provided by the application is simple to operate, the microfluidic chip is simple to prepare and low in cost, has a high embedding rate, the particle size of the microcapsule is controllable, and the biological activity is good.

A system for generating a stable emulsion can employ one or more liquid-liquid eductors to mix oil and water through a motive stream and a suction stream to produce an emulsion as a discharge stream. One or more motive tanks can be fluidly coupled to the one or more liquid-liquid eductors; the one or more motive tanks can supply a motive fluid to the one or more liquid-liquid eductors. One or more suction tanks can be fluidly coupled to the one or more liquid-liquid eductors; the one or more suction tanks can supply a suction fluid to the one or more liquid-liquid eductors. One or more discharge tanks can be fluidly coupled to the one or more liquid-liquid eductors; the one or more discharge tanks can collect the emulsion from the one or more liquid-liquid eductors. Additionally, a flow line coupled to the one or more discharge tanks can supply the emulsion into a formation.

The application belongs to the technical field of gas separation membranes, and particularly relates to a method for preparing a polyamide gas separation membrane by using a water-in-oil emulsion system. The application uses a specially designed water-in-oil emulsion system to replace the water phase in the traditional interfacial polymerization technology, effectively improves the interfacial polymerization reaction rate by increasing the active sites of two-phase monomer contact and the early diffusion of amine monomer, and can effectively avoid the hydrolysis of acyl chloride monomer, thereby creating favorable conditions for forming a thin and moderately dense polyamide membrane.

Disclosed is a cosmetic composition which is in the form of an emulsion of water-in-oil type including, per 100% of its mass: from 60% to 95% by mass of a gelled aqueous phase including at least one crosslinked cationic polyelectrolyte; from 5% to 40% by mass of a fatty phase including at least one oil and an emulsifying system including a combination of at least one emulsifying surfactant selected from the elements of the group consisting of compositions of alkylpolyglycosides, compositions of alkylpolyglycosides and of fatty alcohols, polyglycerol esters, alkoxylated polyglycerol esters, polyglycol polyhydroxystearates, polyglycerol polyhydroxystearates, and alkoxylated polyglycerol polyhydroxystearates.

This invention discloses an anionic hydroxyl silicone oil emulsion and its preparation method, relating to the field of polysiloxane emulsion technology, and belonging to patent classification number C08G77 / 04. The preparation method is as follows: Triethanolamine dodecylbenzenesulfonate salt, tridecyl alcohol polyether, and deionized water are mixed and dissolved, heated, and polydimethylsiloxane alcohol is added under high-speed shearing for homogenization. Water is added and the reaction is maintained at a constant temperature to obtain a basic emulsion. γ-(methacryloyloxy)propyltrimethoxysilane is added dropwise to react and obtain an interface-reinforced emulsion. Acrylamide, N-hydroxymethylacrylamide, etc., are pre-emulsified and then added to the interface-reinforced emulsion with ammonium persulfate under nitrogen protection. Polymerization forms a cross-linked polymer shell. After cooling, tert-butylhydroquinone and disodium ethylenediaminetetraacetate are added to obtain an antioxidant emulsion. Phenoxyethanol and octyl glycol are added to obtain the final emulsion. This method significantly improves the thermal stability of the emulsion through the synergistic effects of composite emulsification, interface reinforcement, shell protection, and antioxidant properties, making it suitable for high-temperature environments.

The invention relates to a dinotefuran and fenobucarb emulsion in water and a preparation method thereof, and belongs to the technical field of agricultural chemicals. According to the dinotefuran and fenobucarb emulsion in water and the preparation method thereof, the dinotefuran and fenobucarb emulsion in water with smaller particle size and more uniform particle size distribution is prepared by selecting a specific emulsifier and a stabilizer, the stabilizer contains a hydrophilic sulfonate group, a hydrophilic quaternary ammonium salt group, cyclic piperidine and an imidazole group, and a molecular chain contains an appropriate carbon chain, so that the dinotefuran and fenobucarb emulsion in water is prepared. The emulsion in water has good hydrophilicity and lipophilicity, can effectively and stably disperse dinotefuran and fenobucarb in water at the same time through the synergistic effect with the polyethylene glycol butyl ether emulsifier and the physical and chemical effect of each functional group with dinotefuran and fenobucarb, can endow the emulsion in water with good wettability, can quickly wet the surfaces of pests, and has the advantages of no toxicity and no harm to the environment. The diffusion rate of the dinotefuran and the fenobucarb from the body surfaces of the spider millettii and the oriental rice locust to the body is increased, and the insecticidal efficiency of the dinotefuran and the fenobucarb is improved.