20 results about "Dimethyl Sulphone" patented technology

The object of this invention is a lipophilic activity modifier in the form of dimethyl sulfone (MSM) for use as a transdermal penetration enhancer for high molecular weight active substances with a molecular weight (Mw) > 500 Da. Another object of this invention is a cosmetic composition for transdermal application comprising an active substance and a transdermal penetration enhancer, characterized in that the active substance is encapsulated by the transdermal penetration enhancer, which is the lipophilic activity modifier according to claim 1, and the active substance is a high molecular weight active substance with a molecular weight (Mw) > 500 Da. Another object of the present invention is a method for preparing a composition according to the invention, characterized in that the method is carried out by thermal emulsification or cold emulsification, wherein thermal emulsification comprises the following steps: a) mixing dimethyl sulfone and a diluent in a reaction vessel; b) bringing the mixture to 70-85°C; c) stirring the mixture at 70-85°C; the start of homogenization depends on the stage of phase combination; d) cooling the mixture to 20-40°C, preferably 30°C; e) adding a high molecular weight active substance with Mw>500 Da and homogenizing the mixture, preferably for 1-3 min; while cold emulsification comprises the following steps: a) mixing dimethyl sulfone and a diluent in a reaction vessel and dissolving at a temperature maintained at 20-25°C; b) bringing the mixture to a temperature of 15-35°C, preferably ambient temperature or 25°C; c) stirring the mixture at a temperature of 15-80°C, preferably 25°C; the start of homogenization depends on the stage of phase combination; d) adding a high molecular weight active substance with Mw>500 Da and homogenizing the mixture, preferably for 1-3 min.

The invention discloses a moisturizing and soothing cosmetic containing an artemisia apiacea extract and a preparation method of the moisturizing and soothing cosmetic. The cosmetic is prepared from the following raw materials in percentage by weight: 0.5%-2% of 1, 2-hexanediol, 0.3%-1% of p-hydroxyacetophenone, 5%-15% of butanediol, 0.1%-1% of dimethyl sulfone, 0.3%-2% of zanthoxylum armatum extract, 0.2%-1.5% of aesculus chinensis extract, 0.1%-0.5% of dipotassium glycyrrhizinate, 0.5%-3% of panthenol, 0.1%-0.8% of allantoin, 0.1%-1% of oat beta-glucan, 0.05%-0.5% of hydrolyzed sodium hyaluronate, 0.001%-0.01% of caramel color, 0.1%-1% of cyclodextrin, 0.05%-0.3% of acetyl dipeptide-1 cetyl ester, 0.5%-2.5% of scutellaria baicalensis extract, 0.3%-2% of purslane extract and 0.2%-1.5% of a chamomile extract and the balance of deionized water. The traditional Chinese medicine composition has the advantages that various extracts are in synergistic interaction; the safety is high; the composition is suitable for sensitive skin, dry skin and other skin types, and can be prepared into emulsion, face cream, essence and other dosage forms.

The purpose of the present invention is to provide a method for producing a plated product capable of efficiently forming an aluminum plating layer with high adhesion to a base material comprising magnesium or a magnesium alloy.　Therefore, a method for producing a plated product according to an embodiment of the present invention has a zinc layer formation step for forming a zinc layer on the surface of a base material comprising magnesium or a magnesium alloy, a copper plating layer formation step for performing copper plating treatment on the zinc layer and forming a copper plating layer on the zinc layer, and an aluminum plating layer formation step for performing aluminum plating treatment on the copper plating layer and forming an aluminum plating layer on the copper plating layer. The aluminum plating solution used in the aluminum plating layer formation step contains dimethyl sulfone, an aluminum halide, ammonium chloride, and tetramethylammonium chloride.

The invention belongs to the technical field of chemical engineering, and particularly discloses a dimethyl sulfone evaporation mother liquor recovery treatment method which is characterized by comprising the following steps: firstly, adding citric acid into dimethyl sulfone evaporation mother liquor to carry out acid-base neutralization reaction, adjusting the pH value of the mother liquor to weak acidity, then stirring the mother liquor at normal temperature under the action of magnetic stirring, controlling the stirring rate to be 200-400rpm, and carrying out reaction for 2-3 hours; and slowly adding an oxidizing agent in an amount which is 20 to 30 percent of the mass of the mother liquor under the action of mechanical stirring, reacting for 0.5 to 2 hours, cooling to below 5 DEG C, and separating out dimethyl sulfone crystals. By adopting the method, the conversion rate of dimethyl sulfoxide (DMSO) in the mother liquor can reach 98% or above. According to the method, valuable components in the mother liquor can be effectively recycled, waste is turned into wealth, reduction and recycling of waste salt and waste water are achieved, meanwhile, pollution to the environment is reduced, the resource utilization rate is increased, green and low-carbon development is promoted, and good social benefits are achieved.

The application discloses a feed additive for reducing the occurrence rate of watermarked eggs and a preparation method and application thereof. The formula of the feed additive is as follows: dimethyl sulfone 3.5-7.0 parts, yeast selenium 0.25-0.5 parts and corn flour 12.5-16.25 parts. 4 / 5 of the corn flour in the formula is added into a mixing machine, then the dimethyl sulfone is added, mixed for 3-5 minutes, the yeast selenium is added, and the mixing is continued for 3-5 minutes, finally the remaining 1 / 5 of the corn flour is added, and the mixing is continued for 3-5 minutes, so the feed additive for reducing the occurrence rate of watermarked eggs is obtained. The feed additive is added into the egg chicken feed at a proportion of 0.2%, and can be used for reducing the occurrence rate of watermarked eggs after 14 days of continuous feeding. The feed additive for reducing the occurrence rate of watermarked eggs can significantly improve the watermarked egg problem, and brings significant improvement to the economic benefits of the egg chicken breeders.

The invention discloses an electrolyte for a high-specific-energy lithium metal battery and the lithium metal battery, and belongs to the technical field of secondary batteries. The invention relates to an electrolyte for a high-specific-energy lithium metal battery. The electrolyte comprises a lithium salt, a solvent and an additive, the solvent comprises fluorinated cyclic carbonate and sulfones; the fluoro cyclic carbonate is prepared from at least one of fluoro ethylene carbonate, propylene trifluorocarbonate and difluoro ethylene carbonate; the sulfones comprise at least one of dimethyl sulfone, methyl ethyl sulfone, sulfolane, trifluoromethyl ethyl sulfone, trifluoropropyl methyl sulfone and methoxy methyl fluorosulfone. According to the electrolyte for the high-specific-energy lithium metal battery disclosed by the invention, the fluoro cyclic carbonate is matched with the sulfone solvent to form a main solvent system with high oxidation resistance, so that the high-pressure decomposition of the electrolyte and the side reaction on the surface of lithium metal are reduced, and the growth of lithium dendrites is inhibited, thereby realizing stable circulation of the high-specific-energy lithium metal battery.

The invention relates to a solid dispersion containing dimethyl sulfone and application thereof, the solid dispersion contains a dispersing agent dimethyl sulfone and at least one medicine, and preferably, the solid dispersion is substantially composed of the dispersing agent dimethyl sulfone and at least one medicine. The preparation method comprises the following four methods: the first method comprises the following steps: uniformly dispersing dimethyl sulfone in a molten clarified state and a medicine to obtain a dispersion system in a molten state; and cooling the dispersion system in the molten state to obtain the solid dispersion. A second method comprises the following steps: uniformly dispersing dimethyl sulfone in a molten clarified state, a third solvent mixture and a medicine to obtain a molten dispersion system; and cooling the dispersion system in the molten state, and removing the third solvent to obtain the solid dispersion, and the third method comprises the following steps: extruding or grinding dimethyl sulfone and the medicine, stirring, melting, mixing and cooling. A fourth method comprises the following steps: preparing a molten mixture of dimethyl sulfone and a high-molecular polymer, adding the medicine when the molten mixture is in a molten state, and uniformly dispersing. The solid dispersion can be used for preparing a pharmaceutical preparation.

The utility model discloses a device for separating and purifying dimethyl sulfoxide and belongs to the technical field of production and preparation of dimethyl sulfoxide. The dimethyl sulfone crystallization device comprises a crystallization assembly and a filtering assembly, the crystallization assembly comprises a crystallization kettle and a temperature control unit arranged in the crystallization kettle, and the temperature control unit can change the temperature in the crystallization kettle to complete crystallization of dimethyl sulfone; the filtering assembly comprises a filtering tank body, a filtering frame and a stirring pressurizing unit, the filtering tank body is communicated with the crystallization kettle through a valve, the filtering frame is obliquely arranged relative to the filtering tank body, and the filtering frame can separate crystals and push opposite sides of the crystals to gather; the stirring and pressurizing unit comprises a stirring paddle, the stirring paddle is rotationally connected with the filtering tank body and is vertically arranged relative to the filtering frame body, and the stirring paddle can drive liquid to pass through the filtering frame. According to the utility model, crystallized dimethyl sulfone can be separated, and dimethyl sulfoxide can be purified.

The present application belongs to the technical field of gynecological external medicine, and particularly relates to a gynecological gel with a vagina tightening effect and a preparation method and application thereof. The gel comprises the following components in parts by weight: gallic acid 0.1-1 parts and dimethyl sulfone 0.2-1 parts. The gynecological gel is prepared by compounding gallic acid and dimethyl sulfone at a specific ratio. The antioxidant and antibacterial effects of gallic acid and the deep repair and penetration characteristics of dimethyl sulfone can play a synergistic effect. The gynecological gel can not only effectively solve the problem of vaginal relaxation, but also provide a mild, safe and long-acting care solution for women, help restore vaginal health and tightness, maintain the microecological balance of the vagina, and meet the needs of modern women for health and care.

The invention belongs to the technical field of detection, and particularly relates to a method for detecting dimethyl sulfone from hair. The method comprises the following steps: (1) cutting a collected hair sample into pieces to obtain broken hair; (2) adding a digestion solution into the chopped hair, carrying out ultrasonic-assisted extraction, and standing after the ultrasonic-assisted extraction is finished, so as to obtain a digestion extracting solution; (3) adding a mixed solution of ethyl acetate and acetonitrile into the digested extracting solution, and oscillating and cleaning to obtain an oscillating and cleaned extracting solution; (4) centrifuging the extracting solution subjected to oscillation cleaning, then taking an organic layer, blow-drying, taking residues, and dissolving the residues with acetonitrile to obtain a solution to be detected; and (5) carrying out dimethyl sulfone component detection on the liquid to be detected by adopting a liquid chromatography-tandem mass spectrometry method.

The present invention relates to dimethyl sulfone for use in the treatment of heat stress in poultry by oral administration, wherein the dimethyl sulfone is administered to chronically heat stressed poultry.

The present invention discloses a multi-component synovitis therapeutic composition based on cartilage tissue repair and a use thereof, relating to the technical field of biomedicine. The composition comprises glucosamine hydrochloride, chondroitin sulfate, dimethyl sulfone, and graded molecular weight sodium hyaluronate. By compounding these components in precise parts by weight, the present invention constructs a gradient sustained-release and targeted delivery system for synovitis lesions. Dimethyl sulfone specifically inhibits hyaluronidase activity in the inflamed joint cavity, significantly reducing sodium hyaluronate degradation and prolonging the retention time of each active ingredient at the lesion site. High molecular weight sodium hyaluronate rapidly forms a lubricating protective film to achieve immediate analgesia and relieve ankylosis, while medium- and low-molecular-weight sodium hyaluronate penetrates the synovial barrier and carries cartilage repair components to the cartilage defect area, thereby achieving synergistic enhancement and comprehensively improving synovitis treatment efficacy.

The invention discloses a rectifying tower for dimethyl sulfoxide production, and relates to the technical field of rectifying towers, the rectifying tower comprises a main tower, the middle side wall of the main tower is fixedly connected with a feeding pipe, the feeding pipe is communicated with the interior of the main tower, one end of the feeding pipe is provided with a material suction pump, the input end of the material suction pump is fixedly connected with a material suction pipe, and the input end of the material suction pipe is provided with a material outlet; an impurity discharge structure is arranged at the top of the main tower, a plurality of tower plates are fixedly connected in the main tower, the plurality of tower plates are arranged in a left-right array mode, and a plurality of vent holes are formed in the side walls of the plurality of tower plates. The main tower is used for preliminarily separating dimethyl sulfoxide and low-boiling-point impurities (such as water and methanol), the auxiliary tower is used for deeply separating dimethyl sulfoxide and high-boiling-point impurities (such as dimethyl sulfone), so that the purity of dimethyl sulfoxide is improved, the service life of a tower body can be prolonged by a corrosion-resistant material and a surface treatment technology, the shutdown maintenance frequency is reduced, and the production cost is reduced. And the rectification efficiency of dimethyl sulfoxide is further improved.

The invention relates to the technical field of capacitors, in particular to a double-electrode-layer button type super capacitor and a production line, the double-electrode-layer button type super capacitor at least comprises a positive plate, a negative plate, an electrolyte system, a shell, a diaphragm and pins, the novel electrolyte system of tetrafluoroborate bis-spiro quaternary ammonium salt (SBP-BF4), sulfolane and dimethyl sulfone is adopted, and the working voltage reaches 3.3 V. Meanwhile, the first full-automatic positive and negative electrode pasting, assembling and sealing production line with the diameter of 6 mm in China is designed, and high-precision automatic production is achieved through the video recognition and segmented pressure control technology. The button type supercapacitor can fill the blank of domestic high-end button type supercapacitors, is widely applied to the fields of solar watches, automobile data recorders and the like, and has remarkable economic and social benefits.

An object of the invention is an active lipophilicity modulator in the form of dimethylsulfone (MSM) for use as a transition promoter for high molecular weight active substances with Mw > 500 Da. Another object of the invention is a cosmetic composition for transdermal administration comprising an active substance and a transition promoter, characterised in that the active substance is encapsulated by a transition promoter which is an active lipophilicity modulator according to claim. 1, while the active substance is a high molecular weight active substance with Mw > 500 Da. A further object of the invention is a method for producing a composition according to the invention, characterised in that it is carried out by either hot emulsification or cold emulsification, hot emulsification comprising the following steps: (a) mixing the dimethylsulfone with the diluent in a reaction vessel; (b) bringing the mixture to 70-85 °C; (c) stirring the mixture at 70-85 °C; with the onset of homogenisation depending on the phase combination steps; (d) cooling the mixture to 20-40 °C, preferably 30 °C; (e) adding a high- molecular-weight active substance with Mw > 500 Da and homogenising the mixture, preferably for 1- 3 min; while cold emulsification comprises the following steps: (a) mixing the dimethylsulfone with the diluent in a reaction vessel and dissolving while maintaining a temperature of 20-25 °C; (b) bringing the mixture to a temperature of 15 - 35 °C, preferably ambient or 25 °C; (c) stirring the mixture at a temperature of 15 - 80 °C, preferably 25 °C; with the onset of homogenisation depending on the phase combination steps; (d) adding a high molecular weight active substance with Mw > 500 Da and homogenising the mixture, preferably for 1-3 min.

The application discloses a method for preparing polyether sulfone by a nucleophilic substitution reaction, and discloses the following steps: taking dimethyl sulfone as a solvent, canceling a double-phenol S / potassium carbonate salification mode, and replacing the double-phenol S / potassium carbonate salification mode with cheap sodium hydroxide / potassium hydroxide, so that the cost is reduced; the whole polymerization process does not emit carbon dioxide; the reaction temperature is increased, the molecular activity is strong, the reaction time is shortened, and the polymerization efficiency is improved; the product is porous after ethanol washing, water can enter the inside of the particles during water washing, salt is washed out, and the salt content in the finished product resin is reduced; no solvent hydrolysis phenomenon occurs in the polymerization process, no N-methyl-4-hydroxyaminobutyric acid is generated, and the product has high purity; the polymerization is a full solid-state feeding process, and no solvent needs to be supplemented, so that the method is a simple and efficient polymerization method and can be applied to industrial production.

The invention relates to a method and an apparatus for enlarging particles of an aerosol and to the use of an operating agent for producing a supersaturated vapor. In a method for enlarging particles (1) of an aerosol (2), the particles (1) come into contact with a supersaturated vapor (3). A sulfoxide or a sulfone such as dimethyl sulfoxide or dimethyl sulfone is used to produce the supersaturated vapor (3). These substances are non-flammable, non-hazardous to health, non-hazardous to the environment and therefore easy to handle. There is no odor nuisance or climatic damage. The same particle counting efficiencies are achieved as with the commonly used butanol as an operating agent.

Methods of preparing melt-spun polyacrylonitrile (PAN) fibers are described. The fibers can be used as carbon fiber precursors and / or carbonized and graphitized to provide carbon fibers. The methods can include melt-spinning mixtures of PAN and a meltable solvent, such as dimethyl sulfone. In some methods, the mixtures also include lignin and / or can include waste PAN or PAN copolymers prepared from bio-derived monomers. Carbon fibers and carbon fiber composites prepared from the melt-spun fibers are also described.

The invention discloses a waste gas treatment system containing dimethyl sulfoxide and dimethyl sulfone decomposition products, comprising a water washing system, a pickling system and an alkali washing tower which are connected in sequence through a ventilation pipeline; the water washing system comprises a first water washing tower and a second water washing tower; the pickling system comprises a plurality of pickling towers connected between the first water washing tower and the second water washing tower; the pickling system uses a pickling liquid mixed with hydrogen peroxide, sulfuric acid and nitric acid to chemically absorb waste gas; the alkali washing tower is connected to the rear of the second water washing tower; the rear of the alkali washing tower is also connected to an active alkali absorption device, and the waste gas after multi-stage washing is adsorbed by an activated carbon adsorption device and then discharged into the air.

The present invention relates to a method and apparatus for enlarging particles of an aerosol, and to the use of an agent for generating supersaturated vapor. In the method for enlarging particles (1) of an aerosol (2), the particles (1) are contacted with supersaturated vapor (3). The supersaturated vapor (3) is generated using a sulfoxide or sulfone, such as dimethyl sulfoxide or dimethyl sulfone. These substances are non-flammable, non-hazardous to health, and non-hazardous to the environment, making them easy to handle. They do not cause odor pollution or damage to the climate. The same particle counting efficiency is achieved as with butanol, which is traditionally used as an agent.