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61results about How to "Achieve slow release" patented technology
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Slow-release carbon source material using sodium alginate as base material and preparation method thereof
InactiveCN102583741AAchieve slow releaseGood removal effectTreatment with aerobic and anaerobic processesMicroorganismCross linker
The invention discloses a slow-release carbon source material using sodium alginate as a base material and a preparation method of the slow-release carbon source material, and belongs to the technical field of water treatment. The slow-release carbon source material disclosed by the invention comprises the following ingredients in parts by weight: 5 parts of starch, 4 to 8 parts of sodium alginate and 2 to 6 parts of calcium chloride (CaCl2). According to the slow-release carbon source material, the sodium alginate is used as a carrier of a fixed carbon source, the starch is used as a carbon source, the materials are jointly dissolved in water to obtain mixed solution, CaCl2 solution is used as a crosslinking agent, the mixed solution is dripped into the crosslinking agent through an injector and is crosslinked for 20 to 30 hours in the crosslinking agent, and the slow-release carbon source material can be used through being cleaned by pure water. The slow-release carbon source material disclosed by the invention has the advantages that the carbon source can be slowly released, the carbon source is provided for the denitrification denitrifying process, the slow release places can also be provided for microorganisms, and the denitrifying effect is enhanced.
Owner:NANJING UNIV
Poly (gamma-propargyl-L-glutamate)-polyamino acid segmented copolymer, functional segmented copolymer and preparation method
ActiveCN102936337AHigh graft densityGood biocompatibilityOrganic active ingredientsPharmaceutical non-active ingredientsBonding processBiocompatibility Testing
The invention provides poly (gamma-propargyl-L-glutamate)-polyamino acid segmented copolymer. The poly (gamma-propargyl-L-glutamate)-polyamino acid segmented copolymer is presented as the formula (I). Small molecules containing primary amino radical serve as an initiator, and the poly (gamma-propargyl-L-glutamate)-polyamino acid segmented copolymer is obtained through the gradual ring cleavage reaction of gamma- propargyl-L-glutamate-N-carboxylic acid anhydride and amino acid-N- carboxylic acid anhydride. The side chain of the segmented copolymer is propargyl which is easy to modify, has high reactivity and is beneficial to functional small molecules which are subjected to bonded azide and have biological activity or environmental responsiveness, and the bonding process cannot lead to the breakage of amino acid backbones and is not affected by the amount and steric hindrance of functional small molecules. The segmented copolymer has good biocompatibility after being functionalized and can be applied in fields such as targeted drug delivery, organizational projects and protein separation and detection.
Owner:CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
Microcapsule containing dimethyl phthalate, mosquito repellent water and preparation method thereof
ActiveCN106137780AReduce stimulationAchieve slow releaseCosmetic preparationsToilet preparationsPolythylene glycolLotion
The invention provides a microcapsule containing dimethyl phthalate, mosquito repellent water and a preparation method thereof. The microcapsule disclosed by the invention comprises dimethyl phthalate, chitosan and gamma-polyglutamic acid. The dimethyl phthalate is coated by utilizing chitosan and polyglutamic acid and is separated from skin, so that irritation to skin is reduced, slow release of the mosquito repellent is realized, and then a mosquito repellent effect is lasting. The mosquito repellent water disclosed by the invention comprises the following main components: the microcapsule containing dimethyl phthalate, aloe extract, hyaluronic acid, polyethylene glycol, propylene glycol, rose hydrosol, water and the like, has the effects of moisturizing, resisting bacteria, diminishing inflammation, relieving itching and the like and is safe and non-toxic. The microcapsule is simple in preparation process, and the wall material has renewability and biodegradability and is non-irritating to skin. According to the mosquito repellent water disclosed by the invention, the dimethyl phthalate is separated from the skin by utilizing the microcapsule, so that bad reactions are reduced; and moreover, a slow release aim of the dimethyl phthalate is achieved, the concentration of the dimethyl phthalate in toning lotion can be reduced, and the effective mosquito repellent time is prolonged.
Owner:广州睿森生物科技有限公司
Efficient compound fertilizer and preparation method thereof
InactiveCN103755453AImprove fertilityIncrease profitFertilizer mixturesSulfite saltMonopotassium phosphate
The invention discloses an efficient compound fertilizer which is prepared from the following raw materials in parts by weight: 70-80 parts of sheep manure, 45-50 parts of waste residues of beer, 23-26 parts of pear saw dust, 30-34 parts of potatoes, 30-34 parts of urea, 20-23 parts of monopotassium phosphate, 12-17 parts of diammonium phosphate, 10-14 parts of potassium chloride, 10-12 parts of potassium sulfate, 1-2 parts of sodium sulfite, 4-6 parts of sodium humate, 4-6 parts of a coating agent, 3-4 parts of an EM bactericide, and a proper amount of water. The fertilizer disclosed by the invention is prepared from organic matters including the sheep manure, the waste residues of beer, the pear saw dust, the potatoes and the like which are added with nitrogen, phosphorus and potassium, micro-elements, mid-elements and a sustained-release material, so that the fertility of the soil is improved and the aim of slowly releasing fertilizer nutrients is achieved, the utilization rate of the fertilizer is increased as well, and the environmental pollution is reduced. The prepared fertilizer has the characteristics of water retention, fertilizer retention, long fertilizer action time and good air permeability; meanwhile, the soil can be improved, nutrient balance of the soil is guaranteed, and sustainable development of the agriculture is promoted.
Owner:DANGTU COUNTY KEHUI TRADING
Icariin controlled release chitosan/hydroxyapatite composite scaffold material and preparation method thereof
ActiveCN104368045ASuppression of burst releaseAchieve slow releaseProsthesisControl releaseSuccinic acid
The invention discloses a preparation method of an icariin controlled release chitosan / hydroxyapatite composite scaffold material. The method comprises the following steps: (1) preparing a raw material solution; and (2) stirring and mixing a chitosan solution with hydroxyapatite slurry evenly to obtain mixed slurry, dropwise adding a succinic acid icariin solution at the amount of keeping the final concentration of succinic acid icariin in the mixed slurry at 1*10<-5> to 1*10<-2> mol / L, adding a cross-linking agent, adjusting the pH to be 5.0-6.5, further stirring and reacting for 10-120 minutes, centrifuging reaction liquid and removing bubbles after reaction is ended, injecting into a mold, and standing for 10-240 minutes to obtain a gel product; freezing, drying, washing, and freezing and drying again. The composite scaffold material disclosed by the invention is capable of improving the bone repair performance of the scaffold material through proliferation and differentiation of slowly released Ica regulating cells.
Owner:SICHUAN UNIV
Controlled-release compound fertilizer
InactiveCN102531804AScientific and reasonable collocationIncrease productionAgriculture gas emission reductionFertilizer mixturesReaction ratePotassium
The invention relates to a controlled-release compound fertilizer, which consists of the following components in parts by weight: 10-30 parts of a phosphogypsum-fly ash slow-release compound, 20-40 parts of a slow-release nitrogen fertilizer containing a urease inhibitor and a digesting bacteria inhibitor, 15-30 parts of a mixed potassium fertilizer and 2-4 parts of a trace element compound. In the invention, the phosphogypsum-fly ash slow-release compound is adopted, so that slow release of fertilizer nutrients is realized, the utilization ratio of the fertilizer is increased, pollution is eliminated, the environment is protected, resources are saved, and production cost is lowered; and the stable digesting bacteria inhibitor is used, so that the nitration and denitrification reaction rates are effectively lowered, leaching loss of the nitrogen fertilizer and release of the nitrogen fertilizer in the form of NO and NO2 gas are reduced, and the utilization ratio of the fertilizer is increased.
Owner:王海炜
Yeast microcapsule of globe artichoke polyphenol and preparation method of yeast microcapsule
ActiveCN105920069AMaintain antioxidant activityRich in nutrientsDigestive systemMicrocapsulesBiotechnologyYeast
The invention discloses a yeast microcapsule of globe artichoke polyphenol and a preparation method of the yeast microcapsule. A yeast microcapsule product is prepared from freeze-dried powder of globe artichoke serving as a core material and yeast cells serving as an embedding wall material through water bath constant-temperature oscillation, centrifuging and freeze-drying, wherein the freeze-dried powder of globe artichoke is obtained through extraction, purification and freeze-drying. Yeast cells are rich in nutrition self, and due to microencapsulation of the yeast cells, the antioxidant activity of polyphenol is maintained, and furthermore nutrient substances of yeast are supplied, so that the yeast microcapsule has the characteristics of slow medicine release, high bioavailability, relatively simple preparation process and is suitable for industrial large-scale production, and meanwhile ideas and directions are provided for further application of polyphenol.
Owner:XIAMEN TASMAN BIO TECH
Method for compounding and entrapping tea polyphenols through debranched starch and xanthan gum
InactiveCN106509899AShort half-lifeFast digestion and absorptionFood ingredientsFood shapingHydrolysateIon exchange
The invention relates to a method for compounding and entrapping tea polyphenols through debranched starch and xanthan gum. The method comprises the following steps of (1) making starch raw materials into starch milk and performing sufficient gelatinizing; (2) lowering the temperature to the appropriate temperature of debranching enzymes, adding the debranching enzymes for enzymolysis, and then performing ion exchange, decoloring and concentration on enzymatic hydrolysate; (3) enabling the xanthan gum to dissolve in the water, and performing compounding with the concentrated enzymatic hydrolysate of the debranched starch; (4) maintaining the temperature of a compounding system solution to be 70-80 DEG C, maintaining the temperature to be the temperature range, under the stirring condition, adding the tea polyphenols, and performing uniform stirring; and (5) uniformly stirring the solution, then sending the uniformly-stirred solution into a high-pressure homogenizer for homogenizing for several times, then sending the homogenized solution into a spray drying system, and under the condition of being away from light, performing stirring and spray drying at the same time so as to obtain tea polyphenol microcapsules. The method is simple to operate, the starch is used as a main raw material, and through compounding with the xanthan gum, so that the stable state of the tea polyphenols is realized; and the tea polyphenols can be slowly released in the digestive tract of human bodies, so that the bioavailability of the tea polyphenols is improved, and the application range of the starch is extended.
Owner:JIANGNAN UNIV
Sustained-release soluble microneedle, preparation method and application
ActiveCN112494421ASolve efficiency problemsSolve the side effectsOrganic active ingredientsPowder deliveryPolyelectrolyteSolvent evaporation
The invention discloses a sustained-release soluble microneedle, a preparation method and application. The microneedle comprises a base body, a needle body and a carrier which is distributed in the needle body and coated with a drug to be sustained-released, wherein the carrier comprises a degradable high polymer material or inorganic nanoparticles modified by a polymer. The method comprises the following steps of: preparing the carrier coated with the drug to be sustained-released by adopting one of an emulsion method, a dialysis method, a solvent evaporation method, a spray drying method anda polyelectrolyte protection method, wherein the carrier comprises the degradable high polymer material or the inorganic nanoparticles; and dissolving or dispersing the carrier coated with the drug to be sustained-released into a matrix solution, casting the matrix solution into a mold by utilizing a vacuumizing method, drying and demolding to obtain the sustained-release soluble microneedle. According to the sustained-release soluble microneedle, the degradable high polymer material or the inorganic nanoparticles modified by the polymer are used as the carrier of the drug, so that the release speed of the drug is slowed down.
Owner:HUAZHONG UNIV OF SCI & TECH
Insect sex pheromone micro-capsule based on multiwalled carbon nanotube
ActiveCN105685030ALarge specific surface areaIncrease loading capacityBiocidePest attractantsInsectTetradecadienyl acetate
The invention discloses an insect sex pheromone micro-capsule based on a multiwalled carbon nanotube. The micro-capsule is composed of a capsule wall and a core material. The multiwalled carbon nanotube is used for making the capsule wall, and the core material comprises insect sex pheromones (Z,E)-9,12-tetradecadienyl acetate or (Z,E)-9,11-tetradecadienyl acetate. The multiwalled carbon nanotube has a special seamless hollow nanoscale coaxial cylinder structure and has a larger specific area and higher loading capacity. The multiwalled carbon nanotube is used for making the capsule wall, the loading capacity of the insect sex pheromones can be larger, slow release of the insect sex pheromones in the micro-capsule can be achieved, the lasting, efficient and stable pest trapping and killing effect is achieved, and storage stability is improved. Meanwhile, the dosage of an organic solvent is small in the preparation process of the micro-capsule, environmental pollution caused in the use process can be avoided, and the micro-capsule is an efficient and environment-friendly material.
Owner:INST OF PLANT PROTECTION FAAS
Starch-based steady-state vegetable oil compound and preparation method thereof
ActiveCN111990477AMild conditionsSimple and fast operationLipidic food ingredientsFood shapingVegetable oilPorous starch
The invention discloses a starch-based steady-state vegetable oil compound and a preparation method thereof. The preparation method comprises the following steps: (1), adding waxy starch with the molecular weight of 6000-10000 kda into water, and performing heating and stirring for complete gelatinizing to obtain a solution A; (2) adding gelatin into water, and performing heating for dissolving toobtain a solution B; (3) adding the solution A into the solution B, performing cooling and uniform stirring, adding a stabilizer, and performing shearing and homogenizing to obtain a water-in-water Pickering emulsion; (4) cooling the Pickering emulsion to swell the solution A and the solution B to form hydrogel, performing dialyzing in water to remove gelatin, and performing precipitating and drying with ethanol to obtain porous starch; and (5) mixing the vegetable oil with the porous starch, performing quick stirring, and carrying out vacuum drying to obtain the starch-based steady-state vegetable oil compound. The slow release of the vegetable oil is realized, the bioavailability is improved, and the oxidation reaction is effectively inhibited.
Owner:SOUTH CHINA UNIV OF TECH +1
Aqueous dispersion of camptothecin analogue-phospholipid complex and method for preparing same
InactiveCN101721364AHigh clinical safetyStable storageOrganic active ingredientsPowder deliveryCamptothecin AnalogueSide effect
The invention belongs to the field of medicinal preparations, and relates to aqueous dispersion preparation of a camptothecin analogue-phospholipid complex and a method for preparing the same. The aqueous dispersion of the camptothecin analogue-phospholipid complex substantially consists of camptothecin analogue, phospholipid and water for injection of therapeutic effective dose, and each milliliter of aqueous dispersion comprises the following components: 0.001 to 5 mg of camptothecin analogue, 0.001 to 500 mg of phospholipid, 0 to 500 mg of additive and the balance of the water for injection. The aqueous dispersion of the camptothecin analogue-phospholipid complex provided by the invention has the advantages of active structure of a lactone ring of camptothecin, high medicament-loading rate, wide clinical application range, little toxic or side effect, long-circulation modification and freeze drying storage, good stability of the preparations, high medicament-to-phospholipid ratio, industrialized production and the like.
Owner:SHENYANG PHARMA UNIVERSITY
Lignin-containing organic-inorganic compound fertilizer prepared by ammonia-acid method as well as ammonia-acid production method
InactiveCN102924175AGood water stabilityImprove effectivenessFertiliser formsFertilizer mixturesChemistryLiquid ammonia
The invention disclose a lignin-containing organic-inorganic compound fertilizer prepared by an ammonia-acid method as well as the ammonia-acid production method. According to the invention, the organic-inorganic compound fertilizer is prepared by using the following components in parts by weight through an ammonia-acid process: 20-30 parts of lignin, 50-60 parts of nitrogen-phosphorus-potassium fertilizer, 0.2-0.5 parts of compound inoculant, 3-5 part of concentrated sulfuric acid, 2.5-3.5 parts of liquid ammonia and 5-15 parts of binding agent; and the raw materials also include 2-4 parts of chelated trace element fertilizer. The organic-inorganic compound fertilizer prepared by the ammonia-acid method uses the lignin as the source of organic material, has a large amount of organic active materials and a large amount of nitrogen, phosphorus and potassium elements, and can satisfy the growth needs of the farm corps completely.
Owner:SHOUGUANG CAILUN ZHONGKE FERTILIZER
Sulfadiazine silver thermo-sensitive hydrogel and preparation method thereof
InactiveCN109602897AImprove antibacterial propertiesImprove complianceAntibacterial agentsOrganic active ingredientsGel preparationSulfadiazine
The invention belongs to the technical field of pharmaceutical preparations, and particularly discloses a sulfadiazine silver thermo-sensitive hydrogel and a preparation method thereof. The hydrogel includes sulfadiazine silver, gelatin, a thermo-sensitive gel matrix, emodin, chitosan, collagen, a temperature regulator, and a humectant. The sulfadiazine silver is micronized to enlarge the surfacearea of particles so as to enhance the antibacterial effect. The method uses the sulfadiazine silver and the emodin as main drugs, the gelatin as a carrier, then uses the thermo-sensitive gel matrix,the temperature regulator, the chitosan and the collagen to prepare a thermo-sensitive hydrogel substrate, and finally encapsulates the sulfadiazine silver and the emodin in the hydrogel substrate soas to form the new sulfadiazine silver thermo-sensitive hydrogel. The hydrogel is an aqueous gel preparation which can be applied to burn and scald wound infection, and has good antibacterial effect,high efficiency and low toxicity, and high compliance for patients.
Owner:CHONGQING MEDICAL & PHARMA COLLEGE
Anti-aging yoghurt containing modified starch and preparation method thereof
The present invention discloses anti-aging yoghurt containing modified starch and a preparation method thereof. The anti-aging yoghurt containing the modified starch comprises the following raw materials in parts by weight: 40-100 parts of bovine colostrum, 10-30 parts of fish collagen peptide powder, 1-5 parts of a thickener, 2-6 parts of concentrated fruit juice, 0.5-1.5 parts of tea polyphenol nanoparticles, 0.1-1 part of a sweetener and 0.1-1 part of probiotics. The thickener is composed of sodium alginate and modified starch according to a mass ratio of 1:(4-6). The anti-aging yoghurt containing the modified starch is rich in nutrients, delicate in mouthfeel, smooth and refreshing, has effects of regulating balance of human body intestinal micro-ecology, improving intestinal functions, lowering blood lipids and lowering blood pressure, enhancing human body immunity and delaying aging, and is simple and easy to implement in the preparation method, strong in operability, low in cost and suitable for factory production applications.
Owner:GUANGXI GAOYUAN STARCH
Rice planting compound fertilizer capable of improving soil and preparation method thereof
InactiveCN110577444AImprove qualityRemarkable resultsMagnesium fertilisersAnimal corpse fertilisersBiologyPlant growth
The invention relates to the technical field of rice planting, and discloses a rice planting compound fertilizer capable of improving soil, the rice planting compound fertilizer comprises the following raw materials in parts by mass: 20-30 parts of a massive element fertilizer, 15-20 parts of a medium element fertilizer, 10-15 parts of a trace element fertilizer, 3-8 parts of biological bacteria,1-5 parts of a water-retaining sustained-release agent, 1-5 parts of a plant growth conditioner, 1-5 parts of a chelating agent and 12-49 parts of a filler; and the filler comprises bentonite, dregs,shrimp shell powder, medical stone powder, diatomite, light burned magnesium powder and rice husk ash. The invention also discloses a preparation method of the rice planting compound fertilizer capable of improving soil. According to the invention, the combination of a soil conditioner and the fertilizers can provide comprehensive and balanced nutrition required by rice, the fertilizer effect is rapid and lasting, the labor amount of farmers is reduced, time and labor are saved, heavy metals can be effectively prevented from being absorbed by crops, and the effect of treating the heavy metalsis achieved.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH
Preparation method and application of disulfiram-loaded nano-emulsion in-situ gel
ActiveCN111494316AThe preparation process is stableThe preparation process is feasibleOrganic active ingredientsAerosol deliveryPhospholipinPolyethylene glycol
The invention relates to the technical field of medicines, and especially relates to a preparation method and application of a disulfiram-loaded nano-emulsion in-situ gel. The preparation method comprises the following steps: (1) mixing an oil phase, an emulsifier and a co-emulsifier, adding polyethylene glycol-modified phospholipid, and uniformly mixing to obtain a first mixed solution; (2) adding disulfiram into the first mixed solution, and obtaining a second mixed solution after the disulfiram is completely dissolved; and (3) adding ultrapure water containing an in-situ gel agent into thenano-emulsion, and carrying out self-assembly to obtain the disulfiram-loaded nano-emulsion in-situ gel. According to the disulfiram-loaded nanoemulsion in-situ gel, the solubility of disulfiram is remarkably improved, an ideal slow release effect is achieved, the in-vivo stability of disulfiram is improved, high safety is achieved, and the characteristic of remarkable brain enrichment during nasal administration is achieved.
Owner:SHANDONG UNIV
Scale and corrosion inhibition microcapsule and preparation method thereof
InactiveCN108569777ACause secondary pollutionGood environmental benefitsSpecific water treatment objectivesScale removal and water softeningProtonationAlkane
The invention discloses a scale and corrosion inhibition microcapsule and a preparation method thereof, and belongs to the technical field of water treatment agents. According to the scale and corrosion inhibition microcapsule and the preparation method thereof, polyacrylamide and 2,3-diaminonaphthalene are used in a corrosion inhibition component and have a synergistic effect so that the corrosion inhibition effect can be greatly improved; introduced secondary alkane sulphonate sodium can improve the biodegradability of the polyacrylamide, is a green surfactant and also has the effect of inhibiting the growth of bacteria, so that the use amount of a bactericide can be decreased, and the circulating water treatment cost can be lowered; halogen ions in hydrogen bromide generate specific adsorption on the metal surface to enable the metal surface to carry a negative charge, and molecules, which are beneficial to protonation, of two organic corrosion inhibitors, namely the polyacrylamideand the 2,3-diaminonaphthalene are adsorbed on the metal surface, and therefore the corrosion inhibition effect of the corrosion inhibitors can be improved; and the problems that a scale and corrosioninhibitor commonly used in the existing market needs to be firstly dissolved into an aqueous solution during water treatment, then the aqueous solution is added into water for water treatment, the operation is complex, and secondary environmental pollution can be caused can be solved.
Owner:常州市蒽盗钟情生物科技有限公司
A kind of microcapsule containing mosquito repellent, mosquito repellent water and preparation method thereof
ActiveCN106137780BReduce stimulationAchieve slow releaseCosmetic preparationsToilet preparationsIrritationPolyethylene glycol
Owner:广州睿森生物科技有限公司
Double-network hydrogel shell polycystic core structure trichoderma harzianum agent
ActiveCN112111412AEfficient encapsulationReduce lossesFungiMicroorganism based processesFungicidePolyvinyl alcohol
The invention belongs to the field of microbial fertilizers, and particularly relates to a double-network hydrogel shell polycystic core structure trichoderma harzianum agent as well as a preparationmethod and application thereof. The preparation method comprises the following steps that trichoderma harzianum, bacterial cellulose, soluble starch, calcium carbonate and other powder are uniformly mixed to prepare a fungicide core layer; a polyvinyl alcohol film is attached to the surface of the fungicide nuclear layer, so that the fungicide nuclear layer is isolated from the external environment; then coating with a nutrition synergist represented by glucose, ammonium sulfate, monopotassium phosphate and the like is peformed; and finally, a polyvinyl alcohol-glycerol / gelatin double-networkhydrogel shell layer on the surface of a nutrition synergistic layer. According to the method, the trichoderma harzianum agent with low bacterial powder encapsulation amount and high viable bacteriumrelease amount can be obtained.
Owner:江西华威科技有限公司
Preparation method of novel biomaterial based on lactoferrin activity
The invention discloses a preparation method of a new biomaterial based on lactoferrin activity. The lactoferrin having osteogenic activity is applied to the bone tissue engineering field as a new bone growth factor, so the problems of difficult obtaining and high prices of various bone growth factor are solved. Lactoferrin is loaded on a hydroxyapatite / collagen implant material, and the interaction between the lactoferrin and hydroxyapatite / collagen composite material is used to realize the slow release of the lactoferrin and solve the problem of short half-life of the supported growth factor. The osteogenic activity of the hydroxyapatite / collagen implant material is improved to a certain degree, and the problem of low bioactivity of a single biomaterial is solved.
Owner:DALIAN POLYTECHNIC UNIVERSITY
Functional fertilizer synergic composition and preparation method thereof
The invention relates to a functional fertilizer synergic composition which comprises a fertilizer synergist, a water retaining slow release agent and an organic matter, wherein the fertilizer synergist is potassium polyaspartate, the weight-average molecular weight of which is 8000-15000. Meanwhile, the invention also provides a preparation method of the functional fertilizer synergic composition. The functional fertilizer synergic composition is different from an existing fertilizer synergist which is single in function, and can realize slow release of the powder fertilizer, so that the utilization ratio of the fertilizer by crops is improved, and the usage of the fertilizer is reduced; and in addition, the composition can be used for surface treatment of the powdery fertilizer, can effectively prevent agglomeration of the powder fertilizer, improves the soil structure, and has a certain water-retaining and drought-resisting effect. As the environment-friendly functional fertilizer synergic composition, the functional fertilizer synergic composition has a wide application prospect.
Owner:INST OF CHEM CHINESE ACAD OF SCI +1
Slow-release pesticide fertilizer containing imidacloprid and pyrazosulfuron-ethyl for rice and preparation method of slow-release pesticide fertilizer
InactiveCN111807891ARealize prevention and controlAchieve slow releaseNitrogenous fertilisersOrganic fertilisersCelluloseEthylic acid
The invention provides a slow-release pesticide fertilizer containing imidacloprid and pyrazosulfuron-ethyl for rice. The slow-release pesticide fertilizer comprises the following raw materials in parts by mass: 0.6 to 1.2% of imidacloprid, 0.05 to 0.1% of tetrachlorantraniliprole, 1%-3% of mefenacet; 0.2 to 0.4% of pyrazosulfuron-ethyl, 40%-50% of a nitrogen-phosphorus-potassium compound fertilizer, 10%-15% of medical stone powder, 15%-20% of modified sawdust, 5%-10% of ethyl cellulose, 5%-10% of cassava starch, 5%-10% of acetate starch, 0.1%-0.2% of a dispersing agent, 0.1%-0.3% of an emulsifying agent and 1%-3% of water. The invention also provides a preparation method of the pesticide fertilizer. The pesticide fertilizer has the characteristics of insect killing, weeding and nutrient supply for rice, and also has the function of releasing nutrients in stages and the like.
Owner:广西金裕隆生物科技有限公司
Thermoplastic elastomer used in automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and preparation method thereof
InactiveCN109206814AAchieve slow releaseSolve the problem that is easy to be extractedPolyamideChemistry
The invention discloses a thermoplastic elastomer used in an automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance and a preparation method thereof. The thermoplastic elastomer is composed of the following raw materials in parts by mass: 50-75 parts of acrylate rubber, 25-50 parts of polyamide, 10-20 parts of carbon black, 2-4 parts ofa softening plasticizer, 5-30 parts of a surface modified loaded anti-aging agent, 1-2 parts of a processing aid and 2-4 parts of a vulcanizing agent. The invention also discloses the preparation method of the thermoplastic elastomer used in the automobile engine, having temperature resistance grade of 150 DEG C and having oxygen resistance and oil resistance. A polyacrylate rubber / polyamide TPV material is prepared by a dynamic vulcanization method; the problem that a traditional anti-aging agent is easy to extract is solved by using the loaded type anti-aging agent in the material; meanwhile, the anti-aging agent is slowly released, and the TPV material which can be used in the automobile engine and has long-term high temperature resistance, oil resistance and thermo-oxidative aging resistance is obtained.
Owner:GUANGDONG RES INSTITITUTE OF PETROCHEM & FINE CHEM ENG
Preparation method for azithromycin micro-emulsion eye drops
InactiveCN107412246AAchieve slow releaseImprove bioavailabilityAntibacterial agentsOrganic active ingredientsOrganic acidAzithromycin
The invention discloses a preparation method for azithromycin micro-emulsion eye drops. The preparation method comprises the following steps: under the condition of 40-50 DEG C of the temperature, slowly dropwise adding an oil phase using midchain oil as a matrix into a water phase in which azithromycin, an organic acid and buffer salt thereof are dissolved, adding an emulgator, and uniformly stirring to obtain the azithromycin micro-emulsion eye drops. The preparation method is capable of, under the heating condition, using the midchain oil as the oil phase matrix which is dropwise added into water solution in which the azithromycin and the organic acid and the buffer salt thereof are dissolved, embedding the acidized azithromycin dissolved in the water, and remarkably improving the bioavailability of the eye drops. In addition, O / W microemulsion is formed by a self-emulsifying method under the situation without adding an organic solvent, the permeability of cell membranes is greatly increased, the storage stability of the eye drops is improved, the slow release of the azithromycin in the eyes is realized, the untoward effect of the larger eye irritation by drugs is relieved, the eye drops has the good biocompatibility, the drug loss is reduced, the vision is not affected, the administration frequency is reduced, and the patient adaptability is improved.
Owner:沈小玲
Aspirin and rivaroxaban compound preparation and preparation method thereof
ActiveCN112451531AFlexible MedicationImprove complianceOrganic active ingredientsCoatingsCoated tabletsThrombus
The invention discloses an aspirin and rivaroxaban compound preparation and a preparation method thereof. The compound preparation is prepared by filling aspirin micro-tablets and rivaroxaban micro-tablets into capsules, wherein aspirin is released in an enteric manner, rivaroxaban is released in a slow-release manner, and aspirin and rivaroxaban are used for treating thrombolysis and preventing thrombosis and other related diseases; the aspirin micro-tablets are enteric-coated tablets, the specification is 25-100 micrograms / tablet, and each capsule is filled with 1-4 aspirin micro-tablets; and the specification of the rivaroxaban micro-tablets is 1.25-20 micrograms / tablet, and each capsule is filled with 1-8 rivaroxaban micro-tablets. According to the compound solid preparation, differentmedicines and different types of micro-tablets are filled into the same capsule to prepare the compound preparation, so that the compound preparation is convenient for patients to take, and the riskof missing taking is reduced. Moreover, the capsule is convenient to open, and the micro-tablet filled capsule has a more flexible administration mode.
Owner:LEPU PHARMACEUTICAL CO LTD
Novel production equipment and process for producing water quality improver prepared from oyster shell powder
ActiveCN111450934AImprove grinding efficiencyImprove mixing efficiencyGrain treatmentsOyster shellsGranulation
The invention discloses novel production equipment and process for producing a water quality improver prepared from oyster shell powder, and belongs to the field of agriculture. The novel production equipment is characterized in that a shell body is located above a granulation mold to form a closed space, a compression roller assembly is located on the upper surface of the granulation mold and cando rotational motion around the central axis of the granulation mold, and granulation through holes are formed in the positions, corresponding to the compression roller assembly, of the granulation mold; and a grinding assembly is installed on the outer side of the circumference of the compression roller assembly below the shell body and can rotate in the axis direction of the compression rollerassembly, and a first feeding pipeline used for containing blocky oyster shells, a second feeding pipeline used for containing coal cinder and a third feeding pipeline used for containing bentonite are fixedly formed in the lower surface of the shell body. The novel production equipment has the beneficial effects that the oyster shell powder, the coal cinder and the bentonite are mixed and granulated to form oyster shell powder purification blocks with a certain size, the oyster shell powder purification blocks are placed at the bottom of a water body, the slow release of the oyster shell powder can be achieved, the purification effect is stable, and the oyster shell powder purification blocks can be fished out after being used for a period of time and are convenient to recycle.
Owner:厦门玛塔生态股份有限公司
Multifunctional soil compound fertilizer and preparation method
PendingCN110028367AImprove long-term effectReduce planting costsAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersNutrientRiver sand
The embodiment of the invention discloses a multifunctional soil compound fertilizer. The multifunctional soil compound fertilizer is prepared from the following components in parts by mass: 10 to 30parts of urea, 10 to 30 parts of monoammonium phosphate, 5 to 20 parts of potassium sulfate, 10 to 30 parts of humic acid, 0.2 to 4 parts of zinc sulfate, 0.2 to 5 parts of ferrous sulfate, 0.1 to 2 parts of boric acid, 0.2 to 5 parts of copper sulfate, 0.2 to 5 parts of manganese sulfate, 0.1 to 1 part of ammonium molybdate and 10 to 20 parts of biological bacteria. The multifunctional soil compound fertilizer fully utilizes oyster shells, river sand, light burnt magnesium, organic matters, the humic acid, the biological bacteria and various trace elements, so that balanced nutrition can be provided for crops; meanwhile, a sulfur coat is used to wrap various nutrients to realize slow release of the various nutrients, which improves the fertilizer utilization, reduces the fertilizer loss and increases the grain yield; and the multifunctional soil compound fertilizer can be widely applied to soil improvement and fertilization.
Owner:烟台富慧农业科技有限公司
Slow controlled-release fertilizer used for corn
PendingCN110423163APromote plant growth and developmentImprove Nitrogen Sustained Release PerformanceAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersFertilizerBiomass
The invention provides slow controlled-release fertilizer used for corn. The fertilizer is prepared from a urea furfural condensation product, furfural residues, rice husk charcoal, compound fertilizer and vermiculite powder. According to the characteristics of large biomass of corn and high demand of nitrogen and potassium, the compound fertilizer is quick in fertilizer efficiency, and is combined with the vermiculite powder and the rice husk charcoal, the nitrogen and potassium content is increased, the dissolution rate of nitrogen and potassium is reduced, the slow action effect of the compound fertilizer is improved, the demand for nitrogen and potassium in a corn large bell mouth stage and later growth and development is provided, and the vermiculite powder can also improve the fertility; the furfural residues and the urea furfural condensation product are combined, the biomass content and the nitrogen release capacity of the urea furfural condensation product are improved, at thesame time, the content of organic matter in the furfural residues and the rice husk charcoal is high, soil physical properties are improved, and nitrogen, phosphorus and potassium elements can be released to promote corn growth; and the rice husk charcoal is combined with the vermiculite powder to improve soil fertility and improve soil, and the slow controlled-release fertilizer used for the corn can better achieve slow releasing of nitrogen and potassium, and the effective period is more than 70 days.
Owner:HEBEI AGRICULTURAL UNIV.
An insect sex pheromone microcapsule based on multi-walled carbon nanotubes
ActiveCN105685030BIncrease loading capacityAchieve slow releaseBiocidePest attractantsMultiwalled carbonOrganic solvent
The invention discloses an insect sex pheromone micro-capsule based on a multiwalled carbon nanotube. The micro-capsule is composed of a capsule wall and a core material. The multiwalled carbon nanotube is used for making the capsule wall, and the core material comprises insect sex pheromones (Z,E)-9,12-tetradecadienyl acetate or (Z,E)-9,11-tetradecadienyl acetate. The multiwalled carbon nanotube has a special seamless hollow nanoscale coaxial cylinder structure and has a larger specific area and higher loading capacity. The multiwalled carbon nanotube is used for making the capsule wall, the loading capacity of the insect sex pheromones can be larger, slow release of the insect sex pheromones in the micro-capsule can be achieved, the lasting, efficient and stable pest trapping and killing effect is achieved, and storage stability is improved. Meanwhile, the dosage of an organic solvent is small in the preparation process of the micro-capsule, environmental pollution caused in the use process can be avoided, and the micro-capsule is an efficient and environment-friendly material.
Owner:INST OF PLANT PROTECTION FAAS
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