Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
34results about How to "Carcinogenic" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Preparation method of macroporous strong-alkaline anion exchange resin for removing nitrate in water
ActiveCN103524657AUniform distribution of poresGood physical and chemical propertiesWater/sewage treatment by ion-exchangeAnion exchangersPore distributionDichloromethane
The invention discloses a preparation method of styrene macroporous strong-alkaline anion exchange resin for removing nitrate in water. Styrene, divinyl benzene, benzoyl peroxide, liquid paraffin, polyvinyl alcohol, gelatin, methylene blue, dichloromethane, 1,4-bis(chloromethoxy)butane, anhydrous tin tetrachloride and triethylamine are used as main raw materials; the macroporous strong-alkaline anion exchange resin is prepared through suspension polymerization reaction, chloromethylation reaction and amination reaction. The preparation comprises the following steps: synthesis of styrene divinyl benzene cross-linked polymer by the suspension polymerization method, chloromethylation reaction of styrene divinyl benzene cross-linked polymer, and amination reaction of chloromethylated styrene divinyl benzene cross-linked polymer. The particle size of the prepared resin is 0.5-1.5mm; the resin has the advantages of uniform pore distribution, strong adsorbability against nitrate, high selectivity on nitrate and the like; the physicochemical properties of the resin are good. The resin can be applied to the nitrate removal treatment process of water, and has good development prospect and practical significance.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Method for preparing bismuth hydroxide/bismuth tungstate compound photo-catalyst by heating one-pot solvent
InactiveCN104209118AEasy and economical to makeEasy to scale up productionWater/sewage treatment by irradiationEnergy based wastewater treatmentPhoto catalyticAlcohol
The invention discloses a method for preparing a bismuth hydroxide / bismuth tungstate compound photo-catalyst by heating an one-pot solvent. A novel Bi(OH)3 / Bi2WO6 visible responsive photo-catalyst is prepared by taking ethanol and water as a mixed solvent, heating the one-pot solvent, and only excessively using and dissolving one bismuth source Bi (NO3)3.5H2O. The photocatalytic activity of the product is systematically researched under the impact of ethanol content, reaction temperature and time, Bi(OH)3 compound content and other experiment parameters, and the optimal conditions for preparing Bi (OH)3) / Bi2WO6 include alcohol-water volume ratio of 9 : 8, solvent hot temperature of 200 degrees centigrade, reaction time of 6 hours, and Bi (OH)3) compound mole ratio of 0.3. The preparation method has the characteristics of simpleness, low cost and energy saving, the prepared compound photo-catalyst has the excellent photocatalytic performance, thereby solving the problem that the present pure bismuth tungstate is relatively weak in catalytic performance and restricted in actual application.
Owner:TIANJIN NORMAL UNIVERSITY
Blown preserved meat and making method thereof
InactiveCN108783271AIncreased water migration rateImprove hair colorFood ingredient as antioxidantNatural extract food ingredientsSurface moistureProcess engineering
The invention provides blown preserved meat and a making method thereof. The making method comprises the following steps of selecting raw materials, performing trimming, performing cutting into strips, performing cleaning, preparing preserving liquid, performing injection and preserving, performing vacuum rolling and kneading, performing dry preserving, performing three-stage fumigation, performing cooling and performing packaging. According to the blown preserved meat disclosed by the invention, through a three-stage fumigation technology, the water migration rate of water in meat can be effectively increased; the vaporization rate of surface water in the roasting course of preserved meat is closely equal to the diffusion rate of internal water, and the internal water is timely complemented to the surface, so that color development of surface skins of fumigated preserved meat is facilitated, and the situation that the surface skins are dry and hard to present rubber state is avoided.According to the blown preserved meat disclosed by the invention, injection and preservation are combined with dry preserving, so that injection and preservation speed is high, preservation is uniform, the permeation and diffusion rate of table salt is accelerated, and under the condition that the dosage of the table salt is reduced, the table salt is injected into meat products in the largest efficiency; and besides, through dry preservation, too much water generated in the injection and preservation course is reduced, and the blown preserved meat is resistant to storage and low in nutrient component loss.
Owner:四川雅妹子农业科技有限公司
Compound alpha-ketoacid tablet and preparation method thereof
ActiveCN103463014AImprove liquidityAvoid clumpingPharmaceutical non-active ingredientsUrinary disorderPolyethylene glycolDissolution
The invention relates to a compound alpha-ketoacid tablet free from talcum powder and a preparation method of the tablet. The tablet prepared by using the preparation method is good in compressibility, beautiful in appearance, high in disintegration speed, high in dissolution rate and high in long storage stability. According to the preparation method provided by the invention, a dry granulation method is used, all the ingredients are prevented from contacting water or other wetting agent, and therefore, the tablet can be stably stored for long time, and the content of effective ingredient is ensured. The content of the polyethylene glycol in the prescription is optimized, the talcum powder or the analogue with composition similar with that of the talcum powder are not contained in the prescription, no disintegrating agent needs to be added, the problems of clustering phenomenon and quite large viscidity in a wet granulation process in the traditional production are solved, the medication safety is ensured, and the product can be stably produced with quality and high safety.
Owner:SHENYANG PHARMA UNIVERSITY +1
Application of SNORD16 gene in preparation of colon cancer detection kits and related kits
ActiveCN111118159APromote growthPromote proliferationMicrobiological testing/measurementNucleotideCancers diagnosis
The invention provides an application of an SNORD16 gene in preparation of colon cancer detection kits and the related kits, and belongs to the technical field of biology. In order to mine prognosticbiomarkers for identifying high-risk patients and explore a novel molecular mechanism of colon cancer pathogenesis, the invention provides the application of the SNORD16 gene in the preparation of thecolon cancer detection kits, wherein the nucleotide sequence of the SNORD16 gene is shown in SEQ ID No.1. The kits are used for colon cancer diagnosis and / or prognosis assessment; compared with normal tissue adjacent to cancers, the SNORD16 gene is highly expressed in colon cancer cells or tissue. The invention also provides the related detection kits. In-vitro functional experiments show that the SNORD16 can promote growth, proliferation, migration and invasion of the colon cancer cells by inhibiting apoptosis, and indicate that the SNORD16 has carcinogenic effects in colon cancer and can beused as the novel diagnostic and prognostic biomarker for the colon cancer.
Owner:ACADEMY OF MILITARY MEDICAL SCI
Helicobacter pylori detection kit and preparation method of the kit
PendingCN111088312AIncrease enzyme activityPrevent proliferationMicrobiological testing/measurementBiological material analysisHelvolic acidHelicobacter pylori
The invention discloses a helicobacter pylori detection kit and a preparation method of the kit. The kit comprises a reaction solution and an indicator paper. The reaction solution includes the citricacid at a pH of 3.0-5.0, sodium citrate buffer, nickel chloride and urea. The indicator test paper can detect the change of pH in the range of pH 4.5 to 7.0. The kit of the invention can be used fordetecting the infection of helicobacter pylori in saliva. The reagent has the advantages of simple preparation, low cost, no harm, pain, toxic side effects and taboos to the human body. The method issimple and fast, and the kit has high sensitivity, thereby being suitable for popularization and application.
Owner:欧迪玛(湖北)生物科技有限公司
Non-carcinogenic and non-sensitive metal Chinese pan
The invention relates to a non-carcinogenic and non-sensitive metal Chinese pan, which belongs to the technical field of metallography and cancer pathology, is applicable to cooling utensils, and is uniquely characterized in that the Chinese pan can collide with a truner and is operated in a wearing way. The World Health Organization and the cancer pathology prove that chromium and nickel are carcinogenic substances to the respiratory tract and are sensitive to a human body, and nickel is a first class carcinogenic substance. The Chinese pan is manufactured by low-carbon steel or low-carbon gray pig iron which does not contain stainless steel and contains chromium and nickel, malleable cast iron and spheroidal graphite cast iron, and can be assembled into an integrated structure by a plurality of stamping parts by means of forging, stamping, calendaring, casting, precision casting and welding when a Chinese pan body and two lug handles are made into a metal intergraded type, and the surface of the Chinese pan is covered by a layer of blue and black compact oxidation film by a blueing technology. Even if metal pan powder ground from the bottom in the Chinese pan enters into cooked food and is absorbed by the human body when vegetable is fired, the human body suffers from no nocuity and side effects, therefore, the potential carcinogenic and sensitive danger since chromium and nickel are absorbed by the human body to circulate in the human body along with blood when a stainless steel pan is used is eliminated. The Chinese pan is more attractive in appearance due to the blue and black compact oxidation film which is covered on the surface of the pan.
Owner:马兆瑞
Skin-care compound and preparation method and application thereof, and skin-care product
ActiveCN110105185AHas inhibitory effectNo teratogenicCosmetic preparationsToilet preparationsFiberStructural formula
The invention relates to a skin-care compound and a preparation method and application thereof, and a skin-care product, and relates to the technical field of skin-care products. According to the technical scheme, the skin-care compound is (1E, 4E, 6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatriene-3-one, and the structural formula of skin-care compound is shown in the description. The skin-care compound is extracted out from pure natural plants containing (1E, 4E, 6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatriene-3-one. The skin-care product can be applied, as an irritant of human-dermal-fibroblastHDFa secreting collagen and a tyrosinase inhibitor, to the preparation of anti-aging and skin-whitening cosmetics.
Owner:KUNMING INST OF BOTANY - CHINESE ACAD OF SCI +1
Biological pesticide and preparation method thereof
The invention relates to a biological pesticide and a preparation method thereof. A raw material of the biological pesticide is an extract from mulberry leaf water, namely total alkaloids from folium mori. The method for preparing the biological pesticide comprises the steps of: cutting mulberry leaves into thin bar shapes with the width of about 2mm, adding water into the mulberry leaves in a solid-liquid mass ratio of 1: 10, performing ultrasonic treatment on the mixture for 1 hour, then boiling the mixture until the content of the mulberry leaves is about 1g / ml, and filtering the obtained solution to obtain a finished product. The invention provides a biological pesticide with no toxicity, no harm, simple preparation technology, and easy popularization and application, and the preparation method thereof.
Owner:安徽省科学技术研究院 +1
Automatic medicine changing device and method for paraffin sections
The invention discloses an automatic medicine changing device and method for paraffin sections. The automatic medicine changing device comprises a box and a drying box, wherein the box is overlapped on the drying box; a sample container, a buffer bottle and a sample containing bottle are mounted in the box, the sample container is connected with the buffer bottle through a connecting pipe, and the sample container is located above the buffer bottle; the buffer bottle is connected with the sample containing bottle through a descending pipe and is located above the sample containing bottle; the sample containing bottle is connected with a waste liquid bottle through a liquid pump; and a wax container, a sample containing bottle and a waste wax bottle are mounted in the drying tank, the wax container is mounted above the sample containing bottle in the drying box, and the sample containing bottle is connected with the waste wax bottle through a pump. According to the automatic medicine changing machine for the paraffin sections, the problems that that a traditional medicine changing is a manual medicine changing manner, the time is wasted, the suck-in of xylene is greatly increased, and xylene belongs to a harmful matter, has strong volatility and a carcinogenesis and severely threatens the personal safety and health are solved.
Owner:GUIZHOU UNIV
Automatic clutch of automotive vehicle provided with manual gearbox
InactiveCN102032290AUnaffected by operationGood value for moneyFluid actuated clutchesEngine powerPiston
The invention discloses an automatic clutch of an automotive vehicle provided with a manual gearbox. The automatic clutch is provided with a steel diaphragm group clutch unit for undertaking engine power, and a double-cone clutch unit for undertaking the power transferred from the steel membrane plate group clutch unit, wherein an outer piston is used for driving a driving plate group of the steel membrane plate group clutch unit to combine with a driven plate group; an inner piston is used for driving an auxiliary cone plate and a main plate of the double-cone clutch unit to combine with a taper sleeve; and a middle piston is used for supplying oil in order. The automatic clutch with the structure can completely substitute a dry plate friction clutch, and is configured with the manual gearbox to thoroughly remove the links which are most difficult to control and most unsafe and consume most oil, thereby making driving become simple, easy and safe, and simultaneously increasing less manufacturing cost.
Owner:江大建 +1
Environment-friendly fabric core conveyor belt adhesive tape and preparation method thereof
PendingCN114702917AReduce raw material costsReduce pollutionNatural rubber adhesivesNon-macromolecular adhesive additivesButadiene-styrene rubberStearic acid
The invention relates to an environment-friendly fabric core conveyor belt adhesive tape and a preparation method thereof. The formula comprises the following components in parts by weight: 50-70 parts of natural rubber, 30-50 parts of butadiene styrene rubber, 10-30 parts of environment-friendly reclaimed rubber, 25-75 parts of reinforcing filler, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 2-5 parts of an anti-aging agent, 1-5 parts of C5 resin, 5-20 parts of environment-friendly aromatic oil, 1-3 parts of modified RS resin, 2-6 parts of a rubber adhesive RA-50, 1.2-2.0 parts of sulfur, 1-1.2 parts of a vulcanization accelerator and 0.1-0.2 part of a scorch retarder CTP. The raw materials are subjected to plastication, first-stage mixing and second-stage mixing to prepare the environment-friendly fabric core conveyor belt adhesive tape. The environment-friendly raw materials are adopted, so that the pollution hidden danger caused to the environment in the production and use processes is greatly reduced, and the safety, the economical efficiency and the adaptability of the product are wider.
Owner:WUXI BOTON CONVEYOR SOLUTION CO LTD
Preparation method of sausage with a mango flavor
The invention belongs to the technical field of sausage preparation, in particular to a preparation method of sausage with a mango flavor. The method comprises the following steps: (1) preparation ofraw diced mangos; (2) preparation of raw meat; (3) mixing-kneading after batching: weighing the following raw materials according to a proportion: 70-90 parts of pork lean meat, 10-30 parts of pork shop fat meat, 1.50-1.60 parts of edible salt, 4.0-4.4 parts of white sugar, 5.2-5.6 parts of the diced mangos, 0.30-0.34 part of white wine, 0.03-0.04 part of nisin, 0.012-0.013 part of spices, 0.3-0.34 part of carrageenan, and 0.036-0.04 part of D-sodium isoascorbiate, and then batching the raw materials; (4) sausage filling; (5) drying; and the like. According to the sausage prepared by the method, the unique nutrient content of mangos is enriched by 3-6%; no B(a)P exists; the taste is unique; and the sausage is nutritious.
Owner:PANZHIHUA CITY XINGYUAN ANIMAL HUSBANDRY CO LTD
Colorless and transparent picometer-scale electrolytic silver ion composite antibacterial agent and preparation method thereof
The invention relates to a preparation method of a colorless and transparent picometer-scale electrolytic silver ion composite antibacterial agent. The composite antibacterial agent is prepared from the following components in parts by weight: 1-5 parts of an electrolytic silver ion solution, 2-8 parts of polyphosphate, 0.2-0.4 part of glacial acetic acid, 50-80 parts of hydrogen peroxide, 0.1-0.5part of glycerol, 25-40 parts of ultrapure water and an additional pH value regulator. The method adopts the hydrogen peroxide, the electrolytic silver ion solution and the ultrapure water as main sterilizing components, so that the prepared antibacterial agent has the characteristics of being broad in spectrum, high in efficiency, safe and environmentally-friendly; the shelf life of the composite antibacterial agent is up to 24 months; the product is widely applied to the fields such as medical treatment and public health, transportation, food and beverage, public environment, household life, personal products, air sterilization, livestock breeding, agricultural planting and water treatment, and has good economic and social benefits.
Owner:洛阳民康生物工程有限公司
Fermented sausage and preparation method thereof
InactiveCN108783265AReduce generationCarcinogenicMeat/fish preservationYeast food ingredientsCooking & bakingMicroorganism
The present invention provides a fermented sausage and a preparation method thereof. The preparation method comprises the following steps: raw material selecting, washing, cutting and blending, vacuumrolling, pickling liquid preparing, three times of pickling, sausage filling, four-stage smoking, fermenting, baking and packaging. During the smoking process, two times of short-time smoking and drying are combined, so that the product has brighter and more stable smoking color and luster. The product obtained by mixed fermentation by fermentation strains is stable in quality. Lactic acid bacteria possess absolute advantages in the whole fermentation and ripening processes; then a reasonable technological condition is conducted; and the preparation method solves product safety problems caused by that no fermentation agent is added and the fermentation and ripening is completed totally by the microorganisms in meat, seasoning materials and environment in the production of the traditionalfermented sausage. Natural pigments of peanut skin red and monascus red pigment are utilized, and degrees of degradation and browning caused by light during a storage process are reduced to the lowestlevel, so that the color and luster of the sausage during the storage process can be maximally retained.
Owner:四川雅妹子农业科技有限公司
Fish specimen making method
The invention provides a fish specimen making method, which comprises the following steps of: absorbing water on the surface of a fish to be subjected to specimen preparation, coating a UV epoxy resin adhesive on the fish body, and solidifying the epoxy resin after ultraviolet radiation; putting the treated fish into a mold, dissolving a mixed solution of epoxy resin and polyether amine D-230, and adding the dissolved mixed solution into the mold, wherein the adding amount of the mixed solution is controlled so that the fish body is not completely covered; then standing and solidifying; carrying out high-temperature sterilization on the solidified specimen, cooling, pouring a mixed solution of epoxy resin and polyether amine D-230 into the mold in which the fish is placed, solidifying, and demolding; and coating UV epoxy resin adhesive on the demolded fish body specimen, and performing ultraviolet irradiation curing to complete the preparation of the specimen. According to the method, the safety of materials used in the actual operation process is high, the sterilization method used in the method is high-pressure steam sterilization and is green and free of pollution, and a formaldehyde solution is adopted in the sterilization method for dipping the specimen, is volatile and has toxicity, carcinogenicity and mutagenicity.
Owner:MARINE BIOLOGY INST OF SHANDONG PROVINCE
Preparation method and application of porous plant particles with scorch aroma
PendingCN113876028AImprove adsorption capacityCarcinogenicTobacco smoke filtersNicotiana tabacumBiology
The invention discloses a preparation method of porous plant particles with scorch aroma. The method comprises the following steps: (1) processing fresh plants till that the water content is 5-10wt%, and then crushing till the particle size of the plant particles is 0.5-2.0 mm; (2) keeping the plant particles obtained in the step (1) at 600-800 DEG C under the condition of air isolation for 0.5-2 seconds; (3) cooling the particles obtained in the step (2) to a room temperature in the absence of air; and (4) crushing the particles obtained in the step (3) into powder with the particle size of 100-180 meshes, and then bonding the powder into particles with the particle size of 20-60 meshes by using a bonding agent, namely the porous plant particles with the scorch aroma. The prepared porous plant particles with the scorch aroma can adsorb harmful substances in smoke when being used in tobacco, and the aroma in the smoke is obviously improved.
Owner:CHINA TOBACCO YUNNAN IND
A kind of environment-friendly release agent for aerated bricks and preparation method thereof
The invention discloses an environmentally friendly release agent for aerated bricks and a preparation method thereof, and relates to the technical field of new building materials. The mass percentages of the components in the release agent are as follows: 25% to 50% of environmentally friendly base oil, 5‰ to 4% of composite emulsifier, 1‰ to 2% of tackifying polymer, 1% to 2% of functional additives, The remaining amount is water; the preparation method includes the following steps: a) fully stir the environment-friendly base oil and the compound emulsifier first, and then add a certain amount of water b) add the viscosifying polymer to continue stirring for 1 ~ After 2 hours, a stable milky white emulsion discharge was formed. On the one hand, the invention solves the pollution problem caused by using waste engine oil in the traditional release agent, on the other hand, it can make the brickwork form a uniform and smooth surface, saving material cost.
Owner:山西省建筑科学研究院集团有限公司
Preparation method of macroporous strong-alkaline anion exchange resin for removing nitrate in water
ActiveCN103524657BImprove adsorption capacityGood physical and chemical propertiesWater/sewage treatment by ion-exchangeAnion exchangersCross-linkBenzoyl peroxide
The invention discloses a preparation method of styrene macroporous strong-alkaline anion exchange resin for removing nitrate in water. Styrene, divinyl benzene, benzoyl peroxide, liquid paraffin, polyvinyl alcohol, gelatin, methylene blue, dichloromethane, 1,4-bis(chloromethoxy)butane, anhydrous tin tetrachloride and triethylamine are used as main raw materials; the macroporous strong-alkaline anion exchange resin is prepared through suspension polymerization reaction, chloromethylation reaction and amination reaction. The preparation comprises the following steps: synthesis of styrene divinyl benzene cross-linked polymer by the suspension polymerization method, chloromethylation reaction of styrene divinyl benzene cross-linked polymer, and amination reaction of chloromethylated styrene divinyl benzene cross-linked polymer. The particle size of the prepared resin is 0.5-1.5mm; the resin has the advantages of uniform pore distribution, strong adsorbability against nitrate, high selectivity on nitrate and the like; the physicochemical properties of the resin are good. The resin can be applied to the nitrate removal treatment process of water, and has good development prospect and practical significance.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Environment-friendly release agent for aerated bricks and preparation method thereof
The invention discloses an environment-friendly release agent for aerated bricks and a preparation method of the environment-friendly release agent, and relates to the technical field of novel building materials. The release agent comprises the following components in percentage by mass: 25-50% of environment-friendly base oil, 0.5-4% of a compound emulsifier, 0.1-2% of a tackifying polymer, 1-2%of a functional additive and the balance of water. The preparation method comprises the following steps: (a) fully stirring the environment-friendly base oil and the compound emulsifier, and then adding a certain amount of water; and (b) adding the tackifying polymer when the emulsion becomes milk white, continuing to stir for 1-2 hours to form a stable milk white emulsion, and discharging the emulsion. On one hand, the pollution problem caused by waste engine oil adopted by a traditional release agent is solved, and on the other hand, a uniform and smooth surface can be formed for brickwork,and the material cost is saved.
Owner:山西省建筑科学研究院集团有限公司
A marker gene snord16 gene and its application
ActiveCN111118159BPromote growthPromote proliferationMicrobiological testing/measurementNucleotideCancers diagnosis
The application of the SNORD16 gene in the preparation of a colon cancer detection kit and related kits belong to the field of biotechnology. In order to excavate and identify prognostic biomarkers of high-risk patients and to explore new molecular mechanisms of the pathogenesis of colon cancer, the present invention provides the application of SNORD16 gene in the preparation of colon cancer detection kits. The nucleotide sequence of the SNORD16 gene is as shown in SEQ ID No. .1 shown. The kit is used for colon cancer diagnosis and / or prognosis assessment; compared with normal paracancerous tissues, the SNORD16 gene is highly expressed in colon cancer cells or tissues. The invention also provides related detection kits. In vitro functional experiments show that SNORD16 can promote the growth, proliferation, migration and invasion of colon cancer cells by inhibiting apoptosis, indicating that SNORD16 has oncogenic effects in colon cancer and can also be used as a new diagnostic and prognostic biomarker for colon cancer.
Owner:ACADEMY OF MILITARY MEDICAL SCI
A method for separating polycyclic aromatic hydrocarbons using a weakly polar rosin-based polymer chromatographic column
ActiveCN108693270BGood choiceGood linear relationshipComponent separationPolycyclic aromatic hydrocarbonBenzene
The invention discloses a method for separating polycyclic aromatic hydrocarbons by using a weakly polar rosin-based polymer chromatographic column. ‑5 mol sample solution of a polycyclic aromatic hydrocarbon mixture; the polycyclic aromatic hydrocarbon mixture is a mixture of two or more of benzene, naphthalene, fluorene, pyrene, and benzopyrene; (2) setting parameters: the weakly polar rosin base The polymer chromatographic column is connected to the liquid chromatograph, and the mobile phase flow rate of the liquid chromatograph is set to 0.1-1.0mL / min, the detection wavelength is 254-270nm, and the column temperature is 30±15°C; (3) Separation: start sample injection The valve enables the mobile phase to bring the sample solution into the rosin-based polymer chromatographic column to realize the separation of the five polycyclic aromatic hydrocarbons. The invention has high sensitivity and simple operation, and does not cause secondary pollution to the separated samples.
Owner:GUANGXI UNIV FOR NATITIES
A method for surface treatment of chrome-free zinc coating for NdFeB permanent magnet materials
ActiveCN102464909BHigh energy consumptionImprove anti-corrosion performanceAnti-corrosive paintsPaints with free metalsChromium freeTin dioxide
The invention discloses a surface treatment method for a chromium and zinc-free coating of a neodymium-iron-boron permanent magnet material. The method comprises the following steps of: performing chamfering, polishing, degreasing, oil removing, sand blasting, derusting and chromium, zinc and aluminum-free coating treatment; and performing zinc-aluminum coating treatment on the surface of the neodymium-iron-boron permanent magnet material by using a chromium, zinc and aluminum-free solution, wherein the chromium, zinc and aluminum-free solution comprises metal powder, inorganic powder, organic powder, hydrocarbon methylcellulose, polyethylene glycol, alkyl phenyl polyoxyethylene ether, an epoxy resin, a silane coupling agent, phytic acid and the balance of ethanol; the metal powder comprises zinc powder and aluminum powder; the inorganic powder comprises magnesium powder, tin powder, tin dioxide or magnesium oxide; and the organic powder comprises polyfluortetraethylene. The surface treatment method has the advantages of easiness for treating, quickness, environmental friendliness and high corrosion resistance.
Owner:BEIJING ZHONG KE SAN HUAN HI TECH +1
Rapidly degradable PVC material and its preparation method and application
The invention provides a rapidly degradable PVC material as well as a preparation method and an application thereof. The rapidly degradable PVC material comprises the following components: 100 parts of PVC resin, 20-80 parts of a plasticizer, 1-10 parts of an auxiliary plasticizer, 1-5 parts of a heat stabilizer, 0.1-3 parts of lubricant, 10-60 parts of an auxiliary agent A for accelerating degradation, and 10-30 parts of a preparation B for accelerating degradation; the auxiliary agent A for accelerating degradation is polyglycolic acid, and the preparation B for accelerating degradation is polylactic acid. The rapidly degradable PVC material satisfies physical properties, chemical properties and biological compatibility needed by the PVC material of disposable medical consumables, and is rapidly degradable in a burying treatment process. Irritation, carcinogenicity, and harm to male reproductive system which may exist in traditional PVC materials are removed, and disadvantages of long burying degradation period time, environment pollution, and the like of disposable medical consumable wastes are overcome.
Owner:上海新上化高分子材料有限公司 +1
Calligraphy and painting paint and its preparation method and application
ActiveCN108165066BAvoid toxic effectsLong-lasting compound fragranceAntifouling/underwater paintsArtist's paintsROSIN POWDERPolymer science
Owner:深圳市凯虹宇文具有限公司
Polymer/montmorillonite-gallicin nano-antibacterial composite material and its preparation method
InactiveCN100413924CImprove technical performanceExcellent swelling and swellingBiocideAnimal repellantsPolymer sciencePolyolefin
Owner:NANJING NORMAL UNIVERSITY
A kind of skin care compound and its preparation method and application, and skin care product
ActiveCN110105185BHas inhibitory effectNo teratogenicCosmetic preparationsToilet preparationsTyrosineCollagenan
The invention relates to a skin-care compound and a preparation method and application thereof, and a skin-care product, and relates to the technical field of skin-care products. According to the technical scheme, the skin-care compound is (1E, 4E, 6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatriene-3-one, and the structural formula of skin-care compound is shown in the description. The skin-care compound is extracted out from pure natural plants containing (1E, 4E, 6E)-1,7-bis(4-hydroxyphenyl)-1,4,6-heptatriene-3-one. The skin-care product can be applied, as an irritant of human-dermal-fibroblastHDFa secreting collagen and a tyrosinase inhibitor, to the preparation of anti-aging and skin-whitening cosmetics.
Owner:KUNMING INST OF BOTANY - CHINESE ACAD OF SCI +1
Environment-friendly and flame-retardant waterproof agent for leather and preparation method for waterproof agent
InactiveCN106085222AImprove stabilityImprove waterproof performanceFireproof paintsLeather surface finishingSolventSilicone oil
The invention belongs to the field of leather finishing agents, and discloses an environment-friendly and flame-retardant waterproof agent for leather and a preparation method for the waterproof agent. The preparation method comprises the following steps: uniformly mixing an initiator, an acrylic ester monomer, vinyl silicone oil, a flame-retardant allyl vinyl monomer, a long-chain alkyl acrylate monomer and a solvent according to a proportion, adding dropwise a mixed solution into an 80 to 90 DEG C reactor for 2 to 4h, adding dropwise a fluorinated acrylate monomer for 1 to 2h, performing mechanical stirring and heat-preservation reaction for 3 to 5h, and performing cooling to obtain the environment-friendly and flame-retardant waterproof agent for the leather. The obtained waterproof agent is free of yellowing and demixing and high in stability; a formed waterproof agent film is flame-retardant, resistant to alcohol rubbing and persistent in waterproof performance, and has good application and environmental protection prospect, and a production process is simple.
Owner:广州双桃精细化工有限公司
A kind of talc-free compound alpha-keto acid tablet and its preparation process
ActiveCN103520156BGuaranteed stabilityGuaranteed contentMetabolism disorderUrinary disorderPolyethylene glycolDissolution
The invention relates to a compound alpha-ketoacid tablet free of talcum powder and a preparation process thereof. The conventional preparation process is changed without adding the talcum powder; the tablet prepared by the method has good compressibility, attractive appearance, high disintegrating speed, high dissolution rate, high stability in long-term placement and high medicinal safety. Wet granulation is performed separately according to the acidic and alkaline ingredients and the mass balance ratio of main medicines, i.e., a meta-alkaline ingredient, a meta-acidic ingredient and a nearly neutral ingredient are subjected to wet granulation separately, and then mixing, tabletting and coating are performed, so that the direct contact among the ingredients is avoided, long-term stable placement can be realized and the contents of the active ingredients are guaranteed. A disintegrating agent internal and external addition method is adopted in the formula, the content of polyethylene glycol is optimized, and no talcum powder or analogs with ingredients similar to the talcum powder are included in the formula, so that the problems of agglomeration phenomenon and larger viscosity in the granulation process are solved, and the safety in medication is guaranteed.
Owner:SHENYANG PHARMA UNIVERSITY +1
Waterproof breathable biological soft-shell plaster patch and preparation method thereof
PendingCN114272225AImprovement of airtight deficienciesDefects that promote airlessnessDispersed particle separationPharmaceutical non-active ingredientsActivated charcoal powderPolymer science
The invention discloses a waterproof breathable biological soft shell plaster and a preparation method thereof. The basic structure of the plaster sequentially comprises release paper (6), a waterproof breathable film (5), an air suction layer (4), a base lining (3), a substrate (2) and release paper (1) from outside to inside. The release paper can be peeled off and is used as a plaster shell; the waterproof breathable film is a film made of high-molecular compounds of polyether sulfone and aryl polyether; the air suction layer is an activated carbon powder layer (7) added between the base lining and the waterproof breathable film; the base lining is a non-stick gauze layer; components of the matrix comprise traditional Chinese medicine powder and additives, and the additives comprise a film-forming agent, an antioxidant, a wetting agent, a bacteriostatic auxiliary agent, a light absorbing agent, a dispersing agent and the like. The waterproof breathable biological soft-shell plaster provided by the invention ensures the curative effect of traditional Chinese medicines, has good waterproof and breathable properties, and does not cause allergy and other damages to the skin.
Owner:深圳市巨印科技有限公司
Features
- R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
Why Patsnap Eureka
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com