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24results about How to "Increase penetration rate" patented technology

Multi-stage extraction leaching device and method

The invention belongs to the technical field of grease extraction. The multi-stage extraction and leaching device comprises a first extraction and leaching section, a second extraction and leaching section and a third extraction and leaching section, the first leaching mechanism comprises a first material conveying mechanism and a second material conveying mechanism which have a height difference; the second extraction and leaching section is located below the first extraction and leaching section and comprises a second shell and a second leaching mechanism arranged in the second shell, the feeding end of the second shell communicates with the discharging end of the first shell, and the discharging end of the second shell communicates with the discharging end of the second shell; and the second leaching mechanism comprises a third material conveying mechanism and a fourth material conveying mechanism which have a height difference. The invention further discloses a multi-stage extraction leaching process. The device is used for solving the technical problems that materials of existing leaching equipment are compacted in the conveying process, the permeation rate of a solvent is affected, and the leaching efficiency is low.
Owner:JIANGSU FENGSHANG GREASE ENG TECH CO LTD

Preparation method of multichannel chabazite molecular sieve membrane

The invention discloses a preparation method of a multi-channel chabazite molecular sieve membrane. The high-performance chabazite molecular sieve membrane is prepared on a multi-channel carrier. The method comprises the following steps: (1) preparing a seed crystal; (2) coating a seed crystal layer on the multi-channel carrier; and (3) synthesizing the chabazite molecular sieve membrane by adopting a secondary growth method. By virtue of a multi-channel structure and specific pore channel characteristics, the prepared multi-channel chabazite molecular sieve membrane has high selectivity and can be used for accurately separating molecules with different sizes and properties. Meanwhile, rich transmission paths enable the membrane to have high flux, the permeation rate of substances is greatly improved, and compared with a single-channel molecular sieve membrane, the treatment capacity is remarkably improved.
Owner:NANJING TECH UNIV

Soaking device and process for improving staining fastness of wool fabric

The invention discloses a soaking device and process for improving staining fastness of wool fabric, and relates to the technical field of textile printing and dyeing. Comprising a soaking barrel, a top cover is installed on the upper side of the soaking barrel, a circulating pump is installed on the lower portion in the soaking barrel, the circulating pump is fixedly connected with and communicated with communicating pipes which are distributed annularly, the soaking barrel is provided with a yarn carrying disc, communicating holes which are distributed annularly and liquid pumping holes which are distributed annularly are formed in the yarn carrying disc, and the liquid pumping holes are communicated with the communicating pipes. The yarn carrying disc is provided with a traction shaft, the yarn carrying disc is fixedly connected with a beam column distributed annularly, a plurality of sets of inner punched holes distributed at equal intervals are formed in the beam column, and elastic folding pieces are fixedly connected to the positions, close to the lower portions of the adjacent inner punched holes, of the beam column through elastic pieces. The adjacent cheeses are separated through the elastic folding pieces, so that gaps exist between the adjacent cheeses, the distance of soaking a color fixing agent into the yarns is shortened, the time required by color fixing work is saved, and the efficiency of the color fixing work is improved.
Owner:JIANGSU DANMAO TEXTILE

Rapid absorption core body

ActiveCN222517167UGram weightFluffy internal structureAbsorbent padsBaby linensFiberMechanical engineering
The utility model discloses a rapid absorption core, and belongs to the field of absorption cores. A rapid absorption core comprises an absorber and a flow guide body, the absorber comprises first non-woven fabric, a wood pulp fiber layer and second non-woven fabric which are sequentially arranged, the flow guide body comprises a first fiber layer, a second fiber layer and dry paper which are sequentially arranged, and the dry paper is arranged on one side of the first non-woven fabric. The gram weight of the second fiber layer is larger than that of the first fiber layer. The liquid absorption device has the advantages of accelerating liquid absorption and improving the use experience.
Owner:FOSHAN MEIDENG PAPER PRODS

A high-efficiency transdermal dressing and preparation method thereof

The invention relates to the technical field of dressings, and discloses a dressing for efficient transdermal transmission and a preparation method thereof. The invention comprises the following steps: adding quaternary ammonium salt modified silicone rubber, camellia seed oil, tocopherol, chitosan-hyaluronic acid gel, sodium hyaluronate, polyvinyl alcohol, epoxy nano-silica, poloxamer and deionized water into a stirrer, stirring the mixture, and obtaining the dressing for efficient transdermal transmission after stirring. During the stirring process, the epoxy group of the epoxy nano-silica reacts with the amino group in the chitosan, and the epoxy group forms a hydroxyl group, which further forms a hydrogen bond with the nitrogen-hydrogen bond of the quaternary ammonium salt modified silicone rubber, and is firmly adsorbed on the surface of the skin, thereby promoting the absorption of the dressing and increasing the penetration rate. The ferrocene contained in the silicone rubber can help the skin to restore smoothness and remove wrinkles. The silicone rubber has good biocompatibility, and the synergistic effect with the quaternary ammonium salt and chitosan promotes the skin care and antibacterial effects on the skin.
Owner:SHANDONG RONGYUANKANG MEDICAL TECH CO LTD

A filtration device for norfloxacin production

ActiveCN122076078Aincrease penetration rateImprove separation efficiency
This invention relates to the field of norfloxacin production technology, specifically disclosing a filtration device for norfloxacin production, comprising: a perforation mechanism disposed inside a filter cylinder for perforating the filter cloth, the perforation mechanism being located below the filter cloth, the perforation mechanism including a gas conveying component for conveying gas and a perforation component for conveying gas to the filter cloth, the perforation component being mounted on and communicating with the gas conveying component, and the perforation component being provided with an outlet hole for discharging gas to the filter cloth; the filtration device for norfloxacin production of this invention, wherein the gas conveying component conveys air into the perforation component, the air entering the perforation component is blown toward the filter cloth under the guidance of the outlet hole, so that the air passes through the filter pores on the filter cloth, thereby perforating the filter pores on the filter cloth, improving the filtration efficiency of the raw material mixture, and eliminating the need for frequent filter cloth replacement, thus improving the working efficiency of the filtration device.
Owner:LUOYANG TIANJIANG FINE CHEM CO LTD +1

Synergistic transdermal absorption promoting method

PendingCN119302856Aincrease penetration rateEfficient penetrationCosmetic preparationsToilet preparationsStratum corneumBULK ACTIVE INGREDIENT
The invention discloses a synergistic transdermal absorption promoting method, which realizes efficient delivery of peptide active ingredients from epidermis to corium layer through a multi-level technical means. The preparation method comprises the following steps: adopting a specific dihydric alcohol plastid as a penetration enhancer so as to accelerate the penetration speed of peptide active ingredients in cuticle; the delivery efficiency of the peptide active ingredients in the corium layer is enhanced through the solid lipid nanoparticles; and through an acylation chemical modification technology, the stability, the skin-friendly property and the bioavailability of the peptide active ingredients are remarkably enhanced, and the activity of the peptide active ingredients is kept in a complex skin internal environment and the expected effect is exerted. The skin care product disclosed by the invention is unique in that various technical means are comprehensively applied to form a drug delivery system with a synergistic effect, so that efficient and stable transdermal absorption of the peptide active ingredients is realized, the transdermal absorption rate of the peptide active ingredients in the skin care product is remarkably improved, the overall efficacy of the skin care product is greatly enhanced, and the skin care product has a good application prospect. Wide application prospects are realized.
Owner:DA JIANG (TIAN JIN) SHENG WU ZHI YAO YOU XIAN GONG SI

Electrolyte, secondary battery and electric equipment

The embodiment of the invention provides an electrolyte, a secondary battery and electric equipment, and relates to the technical field of secondary batteries, the electrolyte comprises a lithium salt, an organic solvent and a first additive; wherein the first additive comprises a fatty alcohol-polyoxyethylene ether additive, the fatty alcohol-polyoxyethylene ether additive comprises a compound with a formula (I), and the fatty alcohol-polyoxyethylene ether additive with the structure of the formula (I) is used as a nonionic surface active additive, so that the surface tension of the electrolyte can be reduced; the wettability and the permeation rate of the electrolyte to the diaphragm in the liquid injection process are improved, the liquid injection time is shortened, the wettability of the electrolyte to the high-specific-surface-area active material in the pole piece is improved, the contact resistance between the active materials is reduced, the internal resistance of the secondary battery prepared based on the electrolyte provided by the embodiment of the invention is reduced, and the service life of the secondary battery is prolonged. And the utilization rate of the active material in the charge-discharge cycle process is improved, so that the comprehensive performance of the secondary battery is improved.
Owner:SHANDONG GEELY XINWANGDA POWER BATTERY CO LTD

Polypeptide composition for treating skin inflammation related diseases and repairing skin

The invention discloses a polypeptide composition for treating skin inflammation related diseases and repairing skin, and particularly relates to application of acetyl dipeptide-1 in preparation of drugs, health care products and cosmetics for treating the skin inflammation related diseases, promoting healing, resisting inflammation, resisting bacteria, resisting oxidation and repairing tissue. The water-soluble acetyl dipeptide-1 and the specific polypeptide are compounded and have a synergistic effect, so that the obvious effect of treating the skin inflammation related diseases by the acetyl dipeptide-1 is realized; besides, the inclusion compound obtained by adding the hydroxypropyl-beta-cyclodextrin-chitosan compound into the polypeptide composition greatly improves the skin permeability of the polypeptide, the permeation rate and the permeation amount are remarkably increased, and the resident dosage of the skin is remarkably increased while the usage amount of the polypeptide is small.
Owner:SHANDONG JITAI BIOTECH CO LTD

Road crack grouting and filling device

ActiveCN222119884UReduce voidsincrease penetration rateRoads maintainenceSlurryMachine
The utility model relates to the technical field of roads, in particular to a road crack grouting and filling device which is internally provided with a machine body, four movable push wheels are rotationally arranged on the front end face and the rear end face of the machine body in a bilateral symmetry mode, and a slurry storage box is fixedly arranged on the left side of the upper end face of the machine body. The contact pin moves in the crack according to the track of the crack, so that the movable spray head is always located above the crack, at the moment, the movable spray head is started, slurry in the slurry storage box is sprayed to the crack from the movable spray head through the filling pipe and the filling block, the precise crack filling function is achieved, and along with movement of the contact pin in the crack, the slurry permeation rate can also be increased; the slurry can enter the deeper position of the crack, after accurate crack filling, the slurry on the surface of the crack can be flattened along with movement of the flattening roller to the position above the crack, the slurry is extruded to go deep into the crack, and then the situation that holes appear in the crack is reduced.
Owner:陕西兴通监理咨询有限公司

A polysulfone-based moisture-permeable hollow fiber membrane and a method for producing the same

ActiveCN116422158BHigh water conversion efficiencyEasy to manufacturePolymer scienceWater vapor permeation
The present application relates to the technical field of moisture-permeable membrane materials, and provides a polysulfone moisture-permeable hollow fiber membrane, the average pore size of a first surface is not greater than 100 nm, and the average pore size of a second surface is not less than 0.25 μm; the content of sulfonic acid groups on the first surface is greater than the content of sulfonic acid groups on the second surface, and the difference between the content of sulfonic acid groups on the first surface and the content of sulfonic acid groups on the second surface is not less than 1X10 ‑3 -4; the water conversion efficiency of the hollow fiber membrane is 40% to 70%, and the water vapor permeation rate of the hollow fiber membrane is 0.5 to 3 g / min. The structure of the polysulfone moisture-permeable hollow fiber membrane provided by the present application shows high water conversion efficiency and water vapor permeation rate, and also has good tensile strength, so that it has a long service life.
Owner:HANGZHOU COBETTER FILTRATION EQUIPMENT CO LTD

Composite dust suppressant suitable for surface mine transportation road and preparation method of composite dust suppressant

The invention discloses a composite dust suppressant suitable for a surface mine transportation road and a preparation method thereof, and belongs to the technical field of preparation of dust prevention and control composite dust suppressants. In order to overcome the defects that an existing dust suppressant is single in function, high in price, toxic, secondary in pollution and the like, four functional materials including a binder, a surfactant, a water-retaining agent and a moisture absorbent are effectively combined, the binder is xanthan gum, the surfactant is rhamnolipid, the water-retaining agent is glycerin, and the moisture absorbent is magnesium chloride. Compared with a traditional dust suppressant, the prepared composite dust suppressant has the advantages of being low in cost, good in moisture absorption and water retention performance, high in pressure resistance and wind erosion resistance, high in dust falling efficiency and the like, is suitable for surface mine transportation roads, has a continuous dust suppression effect, and is safe and efficient. The method has important significance on dust prevention and control of surface mine transportation roads.
Owner:UNIV OF SCI & TECH BEIJING +1

Nanobubble-enhanced reverse osmosis membrane system and method of use thereof

PendingCN122102305Acompletely destroyedincrease penetration rateGeneral water supply conservationWater contaminantsUltrasonic cavitationReverse osmosis
The application discloses a nano-bubble enhanced reverse osmosis membrane system and an application method thereof, and belongs to the technical field of water treatment membrane separation. The system is composed of a nano-bubble generating and injecting module, a reverse osmosis membrane component and an online cleaning module. 10-200 nm negative nano-bubbles are prepared by ultrasonic cavitation or pressure dissolution method, and are uniformly injected into the water inlet end of the membrane after cyclone distribution. The functionalized membrane is modified by carbon nanotubes / metal organic framework and is decorated with a negative interface, and forms a double electrostatic repulsion layer with the nano-bubbles. Online cleaning is combined with ozone radical oxidation and gas-liquid pulse micro-jet physical peeling to realize drug-free membrane regeneration. The application solves the problems of traditional reverse osmosis membrane pollution, concentration difference polarization and high energy consumption through the synergistic effect of gas-liquid-membrane three phases, and is suitable for industrial production.
Owner:XINYU (JIANGSU) ENVIRONMENTAL PROTECTION TECH CO LTD

A method for extracting American ginsenoside

The invention relates to the technical field of saponin extraction, and discloses a method for extracting American ginseng saponin. 5-bromo-insiditin, 3-amino-5-boronic acid, chloromethylated macroporous resin and the like are used as raw materials to obtain a functionalized macroporous resin; American ginseng fibrous roots are subjected to crushing and screening, chloroform soaking, ultrahigh pressure extraction, functionalized macroporous resin adsorption and column chromatography purification to obtain American ginseng saponin; the ultrahigh pressure extraction can increase the osmotic pressure difference, improve the penetration and diffusion rates, shorten the dissolution equilibrium time, increase the solubility of the effective components, and thus improve the extraction yield; the functionalized macroporous resin contains an indolequinone structure, and the amide group and the carbonyl structure in the structure can generate hydrogen bonding with the phenolic hydroxyl group in the saponin, so that the American ginseng saponin can be quickly and specifically adsorbed, and a large amount of impurities can be removed at the same time, so that the content of the target substance is increased to 98.0%. The method is simple and feasible, has low production cost, and is suitable for industrial production.
Owner:WEIHAI WENDENG DAODI GINSENG IND DEV CO LTD

A base-enlarged pile for pre-watering and compaction treatment of collapsible loess

The invention discloses a pre-immersion and compaction treatment of collapsible loess with an expanded bottom pile, the expanded bottom pile comprises a prefabricated concrete pipe pile, the bottom and side of the pile body are provided with a immersion port for water seepage grouting, and a loading frame is installed on the pile top; the pile bottom is a bottom sealing plate and a water inlet plate connected to a stainless steel pipe, and a first sealing ring, a bottom spring and a bottom air bag are installed between the bottom sealing plate and the water inlet plate; the pile side is a side sealing plate and a steel cover plate, and a second sealing ring, a third sealing ring, a side spring and a side air bag are installed between the two. The present invention combines the compaction effect of the pile body and the pre-immersion treatment, and can quickly eliminate the collapsibility of the loess on the pile side and the pile bottom, shortening the construction period. At the same time, the pile side and the pile bottom can be immersed in water with different or the same water pressure, greatly reducing the pile end and pile side resistance during pile sinking, accelerating the pile sinking speed, and improving the construction efficiency. After the pile sinking is completed, the pressure grouting at the pile bottom forms a cement slurry enlarged head, which can greatly improve the bearing capacity of the pile foundation.
Owner:HUNAN INST OF INFORMATION TECH

A hedgerow-based slope farmland segmentation erosion control method

This invention relates to the field of ecological agriculture technology, specifically disclosing a segmented erosion control method for sloping farmland based on plant hedges. The method includes the following steps: dividing the sloping farmland into upper, middle, and lower planting areas according to the terrain from high to low; and then correspondingly installing upper, middle, and lower planting hedges, and constructing a plant community in the lower area. The installation of upper planting hedges includes inoculating the rhizosphere soil with nematodes, or with a combination of nematodes and microbial agents. The microbial agents include at least one of Bacillus, Arthrobacter, Neurospora, or Penicillium. This invention integrates "source control, reservoir enhancement, and potential tapping," effectively intercepting surface runoff and increasing soil moisture infiltration by altering the slope's micro-topography. This is of great significance for improving soil fertility and water and fertilizer resource utilization in dryland farmland, reducing fertilizer use and nitrogen and phosphorus loss, balancing nutrient distribution on the slope, increasing nutrient utilization, and ensuring ecological security.
Owner:JIANGXI RED SOIL & GERMPLASM RESOURCES RES INST +1

Local external composition containing 5 alpha-reductase inhibitor and preparation method thereof

The invention belongs to the technical field of pharmaceutical preparations, and discloses a local external composition containing a 5 alpha-reductase inhibitor and a preparation method thereof.The composition comprises 0.01%-0.1% of dutasteride or pharmaceutically acceptable salt thereof, 3%-14% of crystal inhibitor and 85.9%-96.99% of solvent based on the total weight of the compound.The preparation process is simple, the composition is prepared, and the preparation method is simple. The problem that the dutasteride is easy to crystallize and separate out in the using process due to extremely low solubility is solved, the stability of the dutasteride is improved, the curative effect of the dutasteride is ensured, the bioavailability of the dutasteride is improved, the systemic side effect caused by oral administration is reduced, the safety of the dutasteride is improved, and the medication compliance of a patient is improved.
Owner:CHINA PHARM UNIV

A high-efficiency and stable palladium tube hydrogen purifier

ActiveCN122183341BAchieve multi-level deep purificationHigh recovery rateInlet valveHydrogen molecule
The present application relates to hydrogen purification technical field, a kind of high-efficiency stable palladium tube hydrogen purifier, comprising: shell assembly, shell assembly is made of shell, heat preservation layer and inner container, and heat preservation layer is filled in the gap between shell and inner container, the middle of one end of inner container is fixed with the original gas inlet pipe extending out of shell, and the one end of original gas inlet pipe is fixedly installed with inlet valve;Feed pretreatment component, feed pretreatment component is set in the one end of inner container close to original gas inlet pipe, and its top extends to the top side of shell;End cap, end cap is fixedly installed in the one end of shell away from original gas inlet pipe, and the middle of end cap is fixed with hydrogen outlet pipe.The present application realizes the multistage depth purification of hydrogen, greatly improves the recovery rate and purity of hydrogen after purification, simultaneously, high-efficiency breaks the laminar boundary layer formed by raw material gas on the surface of palladium tube body, reduces the resistance of hydrogen molecules from raw material gas main body to spread to the surface of palladium tube, and realizes the double energy saving of tail gas waste heat recovery and tail gas kinetic energy utilization.
Owner:DALIAN MOSS TECH CO LTD

A kind of dairy goat breeding feed and preparation method thereof

ActiveCN117770361Blittle side effectsRegulate blood sugar and blood lipidsFood processingAnimal feeding stuffBiotechnologySodium acetate
The present invention proposes a dairy goat breeding feed and a preparation method thereof, and belongs to the technical field of feed. After hybrid paper mulberry and soybean are steamed, they are mixed and fermented with Gexianmi algae powder after phycobiliprotein is extracted, and fermented bacteria are collected and embedded to obtain fermented bacteria microcapsules. The fermented product is mixed with fermented bacteria microcapsules, soybean isoflavones, sodium acetate, sodium β-hydroxybutyrate, and Cu / Zn ion chelated phycobiliprotein and added to a complete mixed diet to prepare a dairy goat breeding feed. The dairy goat breeding feed prepared by the present invention can optimize the nutritional value of the complete mixed diet, promote the synthesis of milk fat and milk protein, increase the secretion amount and milk quality of milk, increase the palatability and digestibility of feed, prevent the invasion of pathogenic bacteria, improve the immunity of dairy goats, improve feed utilization, and reduce production costs, and has broad application prospects.
Owner:内蒙古盛健农牧业工程技术研究有限公司 +1

Double-wall drill bit for pneumatic rotary drilling rig

The present invention belongs to the technical field of construction engineering, and relates to a double-wall drill bit used in a pneumatic rotary drilling rig, which is suitable for construction in hard rock formations. The effects are as follows: while ensuring the clearance size of the original drill bit, an inner tube is added to the outside of the original tube drill to ensure airflow and make full use of the exhaust gas; the drill bit air outlet hole set on the drill bit base allows excess exhaust gas to be discharged from the drill bit air outlet hole, and the exhaust gas can blow the broken rock debris out of the hole, so that the pick of the drill bit can contact the rock more closely, thereby improving the drilling rate; the traditional pneumatic drilling rig crushes all the rocks and then discharges them, while the double-wall drill bit adopts a cutting method, and the complete rock core can be taken out after cutting the rock, thereby improving the drilling efficiency.
Owner:SHENYANG ZHONGJIAN DONGSHE GEOTECHN ENG

High-strength screw for hydraulic equipment

The high-strength screw rod for the hydraulic equipment comprises an arc drill bit, a screw rod body, a first shaft sleeve and a second shaft sleeve, the arc drill bit is installed at one end of the screw rod body through a bolt, a hollow cavity is formed in the screw rod body, and a reinforcing column is arranged in the hollow cavity; the other end of the screw body is sleeved with a hoop clamping sleeve, a first shaft sleeve is welded to one end of the hoop clamping sleeve, an expansion base plate A is welded to one end of the first shaft sleeve, an expansion base plate B is installed at the other end of the expansion base plate A through a bolt, and a steel cushion block is clamped between the expansion base plate A and the expansion base plate B. The novel screw can improve the overall strength, rigidity and stability, and is suitable for being widely popularized and used.
Owner:HUBEI DINGTEGU CONSTRUCTION ENGINEERING CO LTD

Dealcoholized silicone sealant stable in storage and capable of being rapidly cured and preparation method of dealcoholized silicone sealant

The invention relates to a dealcoholized silicone sealant which is stable to store and can be quickly cured and a preparation method of the dealcoholized silicone sealant. The dealcoholized silicone sealant is prepared from the following raw materials in parts by mass: 100 parts of alkoxy terminated 107 glue; 20 to 50 parts of dimethyl silicone oil; 30 to 100 parts of a cyclodextrin metal framework material; 100 to 200 parts of an inorganic filler; 0.5 to 1.5 parts of a cross-linking agent; 0.2 to 1.0 part of a coupling agent; and 2-8 parts of a titanate catalyst. The cyclodextrin is prepared into a cyclodextrin metal frame material, the cyclodextrin metal frame material is used for preparing the dealcoholized silicone sealant, the storage stability of the dealcoholized silicone sealant can be remarkably improved, meanwhile, the cyclodextrin metal frame material has high affinity to water, the permeation rate of water vapor in the sealant can be increased, and the dealcoholized silicone sealant has the advantages of being high in stability and good in sealing performance. Therefore, the deep curing speed of the dealcoholized silicone sealant can be obviously improved.
Owner:GUANGZHOU BAIYUN CHEM IND +1

An impact screw drilling tool assembly with information storage and vertical drilling functions

ActiveCN114370233Bincrease penetration rateConstructionsDirectional drillingDrive shaftScrew thread
The present invention relates to a drilling tool assembly design method for improving drilling efficiency and collecting open hole information during vertical drilling. The drilling tool assembly structure includes an information storage short section, a bypass valve assembly, an anti-drop assembly, a motor assembly, a universal shaft assembly, and a transmission shaft assembly from top to bottom. The screw drill is provided with a mechanical push-to-type vertical drilling short section, a hydraulic impact device, and a transmission assembly on its transmission shaft assembly from top to bottom; the information storage short section, the bypass valve assembly, the release assembly, the motor assembly, the universal shaft assembly, the mechanical push-to-vertical drilling assembly, the hydraulic impact device, and the transmission assembly in the drilling tool assembly structure are threadedly connected from top to bottom; the release plate, the release connecting rod, the motor rotor, and the ball joint on the universal shaft are threadedly connected in sequence; the ball joint under the universal shaft, the transition transmission center shaft, and the lower joint are threadedly connected from top to bottom. The present invention integrates screw drill, rotary drilling, vertical drilling, and logging while drilling, reduces production costs, and improves drilling efficiency.
Owner:SOUTHWEST PETROLEUM UNIV

External instant film containing rucotinib as well as preparation method and application of external instant film

The invention discloses an external instant film containing rucotinib as well as a preparation method and application of the external instant film, the external instant film comprises the following raw materials: rucotinib phosphate or pharmaceutically acceptable salt thereof and a film-forming agent in a weight part ratio of 1: (5-20), and the film-forming agent is polyethylene oxide or polyvinyl alcohol. The external instant film disclosed by the invention has the advantages of high drug loading capacity, high dissolution rate, high drug accumulative release amount and high permeation rate, is good in adhesion degree with skin, is not easy to contaminate clothes, and is better in compliance compared with cream or other external dosage forms.
Owner:NEOFORM BIOPHARMACEUTICAL LTD