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115 results about "Urea Peroxide" patented technology

Carbamide Peroxide is an agent composed of urea and hydrogen peroxide. As an earwax removal agent, carbamide peroxide releases, upon administration into the ear, oxygen and causes foaming which helps soften, loosen and remove excessive earwax. It is also used as a disinfectant and in dentistry for its teeth whitening effects.

Decomposer film for transdermal patches

The decomposer film product has a polymeric decomposer layer, a cover layer for protecting the decomposer film from the surroundings and a releasable support liner, which is removed prior to use. The polymeric decomposer film contains a water-soluble or water-insoluble polymeric adhesive material and a decomposition accelerator, which acts to decompose an effective ingredient, such as a steroid hormone, of a worn or unused transderamal patch, when the effective ingredient releasing layer of the patch adheres to the polymer film, so that the pharmaceutical effective ingredient comes into contact with the decomposition accelerator by diffusion. The decomposition accelerator includes a chemically oxidizing substance, preferably urea peroxide, manganese (III) acetate or iron (III) citrate. The water-insoluble polymeric adhesive material is preferably an acrylates adhesive. The water-soluble polymeric adhesive material is preferably polyvinyl alcohol, polyvinyl pyrrolidone, a cellulose derivative or a polyacrylic acid.
Owner:BAYER INTELLECTUAL PROPERTY GMBH

High stable enhanced chemiluminescence substrate

The invention relates to the high-stable increased chemical illuminant base material, which is composed of the solutions A and B. the solution A contains luminal, reinforcing agent phenol and coordinate reinforcing agent; the solution B contains urea peroxide and H2O2. The illuminant signal of the invention is stable and is suitable for the automatic or hand analysis, and the testing results are precise. The 2-8 Deg. C. storing stability can last for two years.
Owner:段虎

Single phase whitening dentifrice

The invention provides a single phase whitening dentifrice that includes (i) a whitening agent selected from the group consisting of hydrogen peroxide, a bound peroxide and a solid peroxide (ii) an abrasive and (iii) a substantially anhydrous orally acceptable carrier, for example, polyethylene glycol. The bound peroxide may be hydrogen peroxide and a polymer and / or any peroxide compound and a porous cross-linked polymer, such as polymers of polyvinyl pyrrolidone, polyacrylates, a polymethacrylates, and a polyitaconates. The solid peroxide may be sodium perborate or urea peroxide. The invention also provides methods of whitening the tooth surfaces by contacting the surface with the composition.
Owner:COLGATE PALMOLIVE CO

Color development liquid for peroxidase mensuration and preparation method thereof

The invention provides a visualization reagent architecture that is used for peroxydase measurement and a preparation method thereof. The visualization reagent architecture comprises urea peroxide, a heavy metal ion complexing agent and a compound of 4-tert-butyl-4'-methoxy-dibenzoylmethane, 3.3' 5.5'-tetramethylbenzidine and sodium hyposulfite, the preparation method of the architecture comprises the following steps: (1) a storage liquid I is prepared and ready for use, and a storage liquid II is prepared and ready for use; and (2) the storage liquid I and the storage liquid II are mixed, pH value of a buffering liquid is adjusted and volume is limited. Peroxides and chromophoric substrates in the visualization reagent architecture that is provided by the invention can coexist stably without reaction for a long time, thus leading the solution architecture to be easily stored and have consistent sensitivity during measurement.
Owner:深圳生科原生物有限公司

Hepatitis c virus antigen-antibody joint detection reagent box and preparation method thereof

ActiveCN104237520AThe "window period" is shortenedHigh detection specificityMaterial analysisAntigenPolyethylene glycol
A hepatitis c virus antigen-antibody joint detection reagent box is characterized by comprising a calibrator(1), a double-marker enzyme conjugate (2), a negative and positive contrast (3), light-emitting liquid (4) and a micropore coated plate (5), wherein the light-emitting liquid contains light-emitting liquid 1 and light-emitting liquid 2, the light-emitting liquid 1 contains luminal 0.7 g / L, cinnamic acid 0.9 g / L, 4-iodophenylboronic acid 0.2 g / L, iodobiphenol 0.25 g / L, dimethylformamide 25 ml / L, polyving akohol 5 g / L, polyvinylpyrrolidone 8 g / L, polyethylene glycol 600 3 g / L, ethylenediamine tetraacetic acid 4 g / L, gentamicin sulfate 1600 thousands / L, urea peroxide 0.4 g / L, and pH 9.0 Tris buffer solution 0.1 mol / L. The light-emitting liquid 2 contains acridinium ester derivative 0.1 mg / ml, polyethylene glycol 600 3 g / L and 0.1 mol / L of pH 9.0 Tris buffer solution containing 0.1% of TWEEN-20. The invention further discloses a preparation method and a using method of the reagent box. The hepatitis c virus antigen-antibody joint detection reagent box has the advantages of being quick in reaction and low in cost.
Owner:BIOSCIENCE (TIANJIN) DIAGNOSTIC TECH CO LTD

Sandy soil modifier and preparation method thereof

The invention discloses a sandy soil modifier and a preparation method thereof. The sandy soil modifier is prepared from such raw materials in parts by weight as 100-300 parts of saw dust, 15-20 parts of horse (donkey) manure, 6-12 parts of mixed microbial liquid formed by mixing white rot fungi, sulfuric acid bacteria and pathogenic bacteria, 3-15 parts of humic acid, 1.2-3.6 parts of siliceous petrification powder, 5.8-9.2 parts of amino acid powder, 1.6-1.78 parts of monopotassium phosphate, 7.6-9.8 parts of acrylamide, 3.6-7.6 parts of boron-zinc-potassium-calcium, 7.3-11.6 parts of fulvic acid, 3.2-5.6 parts of urea peroxide, 0.4-0.6 parts of lysine, 0.2-0.6 parts of sulfur-containing amino acid, and 0.1-0.3 part of phytase. The sandy soil modifier has the advantages of abundant raw material resources, simple and easy-to-operate production process, relatively low production cost, and no pollution; the environment of the sandy soil and green plants are not contaminated by the sandy soil modifier, the soil is not hardened, and a remarkable soil modification effect can be achieved.
Owner:INNER MONGOLIA AUTONOMOUS REGION ACAD OF FORESTRY SCI

Process for preparing peroxide urea

The preparation method of urea peroxide uses hydrogen peroxide and urea as raw material, and is characterized by that adding urea in hydrogen peroxide whose mass percentage concentration is above 50%, at the same time adding stabilizing agent and crystal habit modification agent, after reaction, obtaining wet urea peroxide, drying to obtain white crystal granules, at the same time coating the surface of said urea peroxide white crystal granule with a layer of coating compound. Said invention is economic and practical, its simple batch yield rate can be up to above 85%, the ure peroxide content is up to above 92%.
Owner:陶华西

Method for preparing canthaxanthin through oxidation

InactiveCN105777599AIncrease contentHigh transposition efficiencyOrganic chemistryBeta-CaroteneSolvent
The invention discloses a method for preparing canthaxanthin through oxidation.The method includes the steps that beta-carotene serves as the raw material, sulfur oxide urea or urea peroxide serves as an oxidizing agent, an oxidizing reaction is conducted, and the canthaxanthin is obtained.The method has the advantages that operation is simple, the reaction is stable, and the trigger condition is mild; the oxidizing agents including sulfur oxide urea and urea peroxide can be decomposed into H2O2 and elemental oxygen in solvent, O2 is released slowly, the content of active oxygen is high, stability is high, the utility of time is long, no side effect exists, no toxin or public hazard exists, and it is beneficial to achieve industrialized clean production.
Owner:SHANGYU NHU BIOCHEM IND

Method and system for repairing polycyclic aromatic hydrocarbon contaminated soil through fenton-like and microorganism combination

The invention discloses a method and system for repairing polycyclic aromatic hydrocarbon contaminated soil through fenton-like and microorganism combination. The method includes the following steps that (1) a mixture of carbon-coated porous foamed iron fine particles and sodium perborate or urea peroxide and citrate is scattered into the contaminated soil; (2) a hydrogen peroxide solution is evenly sprayed into the contaminated soil, polycyclic aromatic hydrocarbon pollutants are enriched and removed, and the foamed iron fine particles are recycled; and (3) mixed bacterium suspension is sprayed into the contaminated soil. The system comprises a material scattering device and a recovery device. The material scattering device comprises a material scattering crawler belt conveyor and a material scattering fixed frame. The material scattering fixed frame is provided with a mixture hopper, a hydrogen peroxide solution storage tank and a sprayer. The recovery device comprises a recovery crawler belt conveyor and a recovery fixed frame. The recovery fixed frame is provided with a magnetic recovery device, a recovery tank, a mixed bacterium suspension storage tank and a sprayer. By means of the method and system, the process is simple, cost is low, sustainability is high, damage to soil microorganisms and organic matter is avoided and the danger of secondary pollution is avoided.
Owner:QINGDAO AGRI UNIV

Method for preparing urea peroxide

A preparation method of urea peroxide comprises uniformly mixing urea solution, 25-50% hydrogen dioxide solution, stabilizer and carbowax filming agent, to be dewatered, cooled and crystallized in vacuum of -0.085 to -0.095MPa at a temperature of 40 to 63 DEG C, wherein the weight ratio of hydrogen dioxide in urea and hydrogen dioxide is 1:(1.0-1.4), the stabilizer is a mixture of endrate disodium (EDTA sodium) and citrate at a weight ratio of 1:(1-3), the stabilizer is 0.001-0.5% of urea by weight, and the filming agent is 0.05-0.2% of the urea by weight. The preparation method of urea peroxide can obtain high-stability urea peroxide crystal of high yield, with better crystal form, high stability, simple production process, small volume, no generation of three wastes and application in industrial batch production, while the stabilizer and filming agent have single component to avoid complex treatment.
Owner:LIER CHEM CO LTD

Chemiluminescent substrate liquid applied to detection system taking horseradish peroxidase (HRP) as enzymatic reaction

ActiveCN102156121AThe validity period reaches more than 12 months, and the sensitivity increasesHigh sensitivityChemiluminescene/bioluminescenceBiological testingIodophenolLuminol
The invention discloses chemiluminescent substrate liquid, which is mainly composed of radiant agent luminol, reinforcing agent p-Iodophenol, oxidant urea peroxide, and is applied to a detection system taking HRP as enzymatic reaction. The chemiluminescent substrate liquid has the characteristics of short reaction time, long detection platform period, good stability and the like, and can enhance the sensitivity of a kit, broaden linear range and prolong the period of validity of the kit.
Owner:BIOSINO BIO TECH & SCI

Pollution-control synergistic method for in-situ remediation of organically polluted farmland soil

The invention provides a pollution-control synergistic method for in-situ remediation of organically polluted farmland soil and belongs to the fields of environmental protection and solid waste recycling. The method includes: S1) soaking biomass in a ferric solution and / or a ferrous solution, drying and pyrolyzing the biomass, and cooling, washing and drying the biomass to make modified biochar; S2) mixing the modified biochar, urea peroxide solution and the organically polluted farmland soil, and allowing the mixture to stand for degradation. Compared with the prior art, by means of the simultaneous production-remediation, productivity of the farmland soil is enhanced as the pollution-control is achieved; so that the method is a green remediation technology that can maintain the in-situ fertility of the polluted farmland soil. The modified biochar can catalyze the urea peroxide, thus significantly improving the degradation on the organic pollutants in soil.
Owner:SHANGHAI JIAO TONG UNIV

Vascular endothelial growth factor quantitative determination kit and light-emitting substrate solution thereof

The invention discloses a vascular endothelial growth factor quantitative determination kit and a light-emitting substrate solution thereof. The light-emitting substrate solution comprises a light emitting solution A and a light emitting solution B, wherein the light emitting solution A comprises the following ingredients with concentrations: 0.40-0.50 g / L luminol, 0.10-0.15 g / L p-iodophenol, 0.10-0.15 g / L 1,2-cyclohexanediamine tetraacetic acid, 4.60-5.40 g / L boric acid, 11.00-12.00 g / L borax, and 10.00-12.00 g / L sodium chloride; the light emitting solution B comprises the following ingredients with concentrations: 0.20-0.25 g / L urea peroxide, 1.00-1.50 ml / L Tween 20, 4.60-5.40 g / L boric acid, 11.00-12.00 g / L borax, and 10.00-12.00 g / L sodium chloride; a volume ratio of the light emitting solution A to the light emitting solution B during use is 1:1. The light-emitting substrate solution disclosed by the invention has the advantages of good stability, high sensitivity, and long photon strength platform period.
Owner:山东一达生物科技有限公司

Slow-release fertilizer and preparation method thereof

The invention relates to a slow-release fertilizer. The fertilizer is characterized by being prepared from a urea peroxide-beta-cyclodextrin inclusion compound, urea peroxide (Perurea: CO(NH2)2.H2O2) and beta-cyclodextrin which are in effective quantities, wherein the urea peroxide-beta-cyclodextrin inclusion compound takes urea peroxide as a kernel and takes beta-cyclodextrin as an outer layer. According to the slow-release fertilizer disclosed by the invention, the contained-oxygen activity is high and can reach 17-20%; and after the slow-release fertilizer disclosed by the invention is used, the oxygen release is sustained, moderate, stable and controllable and can sustain 300 hours every 100g of urea peroxide in net content. The slow-release fertilizer disclosed by the invention has the advantages that the oxygen release manner is slow, moderate and stable, is stronger in activity and strong in disinfection and can be used for easily eliminating diseases and pests from potted landscapes, so that the normal survival ratio of potted plants is increased effectively; and meanwhile, the slow-release fertilizer disclosed by the invention has effects on increasing, disinfecting and cleaning indoor oxygen and has incomparable superiority compared with currently reported relevant research results and new products on the market.
Owner:新胜利工业集团有限公司

Fruit tree root system oxygenating and ventilating fertilizer

The invention discloses fruit tree root system oxygenating and ventilating fertilizer which is prepared from the following raw materials in parts by weight: 3 to 4 parts of urea peroxide, 44 to 46 parts of cotton seed cake, 13 to 15 parts of rice chaff ash, 23 to 27 parts of bagasse, 1 to 2 parts of ammonium citrate, 7 to 8 parts of ammonium nitrate, 0.8 to 1.0 part of ferrous sulfate, 2 to 3 parts of methyl cellulose, 14 to 16 parts of chitosan, 0.3 to 0.5 part of potassium permanganate, 0.8 to 1.2 parts of manganese sulfate, 2 to 3 parts of acrylamide, 0.2 to 0.3 part of N,N'-methylene bisacrylamide, 0.6 to 0.7 part of ammonium persulfate, 2.0 to 2.5 parts of zinc acetate, 0.3 to 0.4 part of yttrium nitrate, a defined amount of absolute ethyl alcohol solution and a defined amount of water. Aiming at the characteristics that a fruit tree root system is larger and deeper in rooting, the fertilizer disclosed by the invention can slowly release oxygen after being degraded at the root system by additionally applying components of the urea peroxide, the ammonium citrate and the like; thus, the oxygen content around the root system at the soil deep position is improved, and soil breathability is improved; by means of adding organic components of the bagasse, the rice chaff ash and the like, metabolism and nutrient absorption of the root system are improved, and growth vigor of the fruit trees is improved.
Owner:SUZHOU TIANYU CULTURE GRP

Synthesis method and applications of urea peroxide

The invention discloses a synthesis method of urea peroxide and applications of the urea peroxide in an antibacterial agent. The synthesis method comprises the following steps: adding hydrogen peroxide and urea into a reactor in proportion, and stirring at room temperature to dissolve hydrogen peroxide and urea; adding an additive into the reactor, and stirring at room temperature; and cooling andcrystallizing an solution in the reactor, filtering, and freeze-drying an obtained filter cake. The urea peroxide obtained by the invention is solid powder, is not easy to absorb moisture, is convenient to store and transport, is not easy to deteriorate, has a good sterilization effect, has good inhibition and killing effects on staphylococcus aureus, escherichia coli, bacillus sakazakii, salmonella typhimurium, listeria monocytogenes and vibrio parahaemolyticus, and is a potential broad-spectrum antibacterial agent.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Formaldehyde scavenger

InactiveCN104645795ASimple preparation processHigh efficiency in removing formaldehydeDispersed particle separationScavengerAlkaline earth metal
The invention relates to a formaldehyde scavenger and a preparation method thereof. The formaldehyde scavenger mainly comprises the following components in parts by weight: 6-10 parts of urea peroxide or sulfourea, 1-2 parts of alkaline earth metal chloride, 1 part of bromide, 1 part of titanium dioxide and 1 part of strong metal oxide; or the formaldehyde scavenger further comprises 1 part of water-soluble azone and 80-85 parts of water. Compared with existing formaldehyde scavengers, the formaldehyde scavenger provided by the invention is a broad-spectrum constant capture catalyst with simple manufacturing process, high formaldehyde removing efficiency and very good market application prospect.
Owner:BEIJING BOHAO ZHIYUAN TECH

Water-soluble root canal lubricant and preparation method thereof

The invention relates to a water-soluble root canal lubricant and a preparation method thereof.The lubricant is of a colloidal form and is prepared from EDTA or EDTA sodium, sodium citrate, polyethylene glycol and an excipient.The preparation method of the water-soluble root canal lubricant includes the following steps that 1, an appropriate amount of the EDTA and / or urea peroxide is taken and is finely grinded for standby application; 2, an appropriate amount of the sodium citrate is taken as an acid-base regulator, a formula dosage of water is added, and even stirring is performed; 3, the polyethylene glycol and the excipient are added, and even stirring is performed; 4, the main components EDTA and / or urea peroxide are added, and even stirring is performed to prepare colloid; 5, the colloid is encapsulated in a disposable syringe.The root canal lubricant prepared by means of the preparation method is good in root canal lubricating effect, can kill various germs while performing root canal lubrication and facilitates root canal treatment.A doctor can easily flush off the residual root canal lubricant after using the lubricant.
Owner:ZHEJIANG ZHEBEI PHARM CO LTD

Water-based metal detergent and preparation method thereof

The invention discloses a water-based metal detergent and a preparation method thereof. The detergent is prepared from potassium stearate, vegetable fiber powder, cocoanut fatty acid diethanolamide, disodium ethylene diamine tetraacetate, AEO9, polyepoxysuccinic acid, propylene glycol, cetanol polyoxyethylene ether, methylepichlorohydrin, branched secondary alcohol ethoxylate, urea peroxide, dodecylbenzene sulfonic acid, nonylphenol polyoxyethylene ether, diethylene glycol monobutyl ether, polyvinyl alcohol, nanometer TiO2, water lily extract product lignanoids, cactus root extract liquid, and the balance of deionized water. The pure plant extract water lily lignanoids are introduced to the preparation field of metal decontaminating agents, and the nanometer TiO2 is added, so the detergent has a substantial decontamination effect, can rapidly clean spots, oil stains and other pollutants on parts, and can prevent rusts of the parts to maintain the shining state of the parts for a long term.
Owner:BOHAI UNIV

Wool cleaning agent

The invention discloses a wool cleaning agent which belongs to the field of detergents and is used for solving the problem that the wool cleaning effect is not good. The wool cleaning agent mainly comprises urea peroxide, sodium polyphosphate, sodium carbonate, sodium sulfate, sodium ethylene diamine tetracetate, sodium carboxymethyl cellulose, fatty alcohol polyoxyethylene ether and sodium fatty acid methyl ester sulfonate, wherein the urea peroxide is capable of disinfecting wool; the sodium polyphosphate is capable of enhancing the wool gloss and thereby improving the quality; the sodium carbonate and the sodium sulfate serve as main cleaning components to clean; the sodium ethylene diamine tetracetate is capable of removing a part of metal ion residual in the wool; the sodium carboxymethyl cellulose is capable of preventing the washed-out dirt from being sedimentated on the surface of the wool again; and the fatty alcohol polyoxyethylene ether and the sodium fatty acid methyl ester sulfonate serve as surfactants to increase the cleaning effect. The manufactured wool cleaning agent is capable of effectively removing the dirt in the wool and improving the wool quality.
Owner:王伟强

Oxygen-increasing controlled-release fertilizer as well as preparation method and application thereof

The invention relates to an oxygen-enriched controlled-release fertilizer which is characterized by consisting of a urea peroxide-beta-cyclodextrin complex with an effective quantity, urea peroxide (Perurea: CO(NH2)2.H2O2) and beta-cyclodextrin, wherein in the urea peroxide-beta-cyclodextrin complex, urea peroxide is used as an inner core, and beta-cyclodextrin is used as an outer layer. The oxygen-containing activity amount of the controlled-release fertilizer is high and can reach 17%-20%; and after being applied, the oxygen-enriched controlled-release fertilizer can continuously, moderately, stably and controllably release oxygen, and 100g of the fertilizer (the net content of Perurea) can continuously release oxygen for 300 hours. The controlled-release fertilizer has the advantages of slow, moderate and stable oxygen-enrichment mode, strong activity degree and strong antiseptic property, and is easy to eliminate the diseases in bonsai, thereby effectively improving the normal survive rate of a bonsai plant; and simultaneously, the oxygen-enriched controlled-release fertilizer has the effects of indoor oxygen enrichment, cleaning and disinfection; and compared with the relatedresearch results reported at present and novel products supplied by a market, the oxygen-enriched controlled-release fertilizer has incomparable superiority.
Owner:杨季冬

Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent

The invention belongs to the technical field of a peroxide stabilizing agent and particularly relates to a stabilizing agent in a urea peroxide storage process and a preparation method of the stabilizing agent. The stabilizing agent in the urea peroxide storage process provided by the invention comprises the following material ingredients in parts by weight: 5 to 20 parts of water absorption agents, 5 to 15 parts of flow aids, 5 to 20 parts of heat resistance agents and 40 to 80 parts of solid active oxygen stabilizing agents, wherein the water absorption agents are one kind of materials of magnesium chloride, calcium chloride or sodium chloride or a mixture of the magnesium chloride, calcium chloride and sodium chloride, the flow aids are one kind of materials of magnesium carbonate, light magnesium carbonate, potassium stearate, microcrystalline cellulose, superfine silica powder or tricalcium phosphate or a mixture of magnesium carbonate, light magnesium carbonate, potassium stearate, microcrystalline cellulose, superfine silica powder and tricalcium phosphate, the heat resistance agents are one kind of materials of potassium sulfate, potassium chloride or potassium nitrate or a mixture of potassium sulfate, potassium chloride and potassium nitrate, and the solid active oxygen stabilizing agents are one kind of materials of sodium tripolyphosphate, sodium fluoride, sodium borate and sodium silicate or a mixture of sodium tripolyphosphate, sodium fluoride, sodium borate and sodium silicate. Products provided by the invention have a long quality guarantee period, the bag expansion is avoided, the agglomeration is avoided, the in-site use is convenient, the product flowability is good, and the application range is wide.
Owner:石家庄卫科生物科技有限公司

Method and device for carrying out in-situ remediation on farmland soil polluted by polyaromatic hydrocarbon

The invention discloses a method and a device for carrying out in-situ remediation on farmland soil polluted by polyaromatic hydrocarbon. The method comprises the following steps: (1) evenly mixing carbon coated porous foam iron subparticles with sodium perborate or urea peroxide and citrate powder, and evenly spreading mixture into polluted soil; (2) evenly spraying hydrogen peroxide solution into the polluted soil, carrying out enrichment and removal on polyaromatic hydrocarbon pollutant in the soil through adsorption, microelectrolysis and oxidation-reduction, and finally, recovering the carbon coated porous foam iron subparticles. The device comprises a movement rack, wherein the front part and the rear part of the movement rack are respectively provided with a front wheel and a rear wheel; the movement rack is provided with a mixture hopper, a hydrogen peroxide solution storage tank, a magnetic recovery device and a recovery tank in sequence from front to back; shower nozzles are distributed on the bottom of the hydrogen peroxide solution storage tank; the bottom of the mixture hopper is provided with a brake valve. The method and the device have the advantages of simple process, low cost, and high sustainability, the damage of soil microorganisms and organic matters can be avoided, and a risk of secondary pollution is avoided.
Owner:QINGDAO AGRI UNIV

Removal agent of sulfur-containing odorous gas of thickened oil thermal production well and preparation method of removal agent

ActiveCN109233775ALower pHDoes not cause fouling problemsDrilling compositionCarbonyl sulfideSulfur containing
The invention belongs to the technical field of chemical agents for oilfields and preparation and in particular relates to a removal agent of sulfur-containing odorous gas of a thickened oil thermal production well and a preparation method of the removal agent. The removal agent is prepared by taking a triazine substance, peroxide and a metal complexing agent to react in a reaction medium, whereinthe triazines substance is hexahydro-1,3,5-tris(hydroxyethyl)-s-triazine or hexahydro-1,3,5-trialkyl-s-triazine; and the peroxide is one of hydrogen peroxide, peroxyacetic acid, urea peroxide and sodium percarbonate. The removal agent provided by the invention has low pH (Potential of Hydrogen) value, so that the problem that a sleeve, an oil pipe and a shaft of an oil well are scaled is not caused; the removal agent provided by the invention can be used for effectively removing undesirable odor caused by H2S hydrogen sulfide and can be used for effectively removing the hydrogen sulfide generated by thiol and carbonyl sulfide; and meanwhile, the removal agent provided by the invention has a small dosage and the dosage can be reduced by 50 percent or more when being compared with that of acommon medicament; and the removal rate on the H2S, the thiol and the carbonyl sulfide of oil well produced liquid reaches 100 percent.
Owner:CHINA PETROLEUM & CHEM CORP +1

Lubricant for root canal therapy

ActiveCN105213200AFavorable conditions for healingReduce reserve resistanceImpression capsDentistry preparationsGlycerolClinical trial
The invention discloses a lubricant for root canal therapy. The lubricant consists of sodium ethylene diamine tetracetate, citric acid, urea peroxide, cetyl trimethyl ammonium bromide, sodium carboxymethyl cellulose, glycerol and water. The lubricant disclosed by the invention is capable of softening root canal wall and reducing preparatory resistance, and the lubricant is especially suitable for big-tapered nickel-titanium instrument preparation. On the basis of clinical test results from two groups of samples in contrast, namely a group (experimental group) making use of the root canal lubricant and a group (control group) not making use of the root canal lubricant, a bacterium detection rate inside the root canal of the group making use of the root canal lubricant in a root canal preparing process is significantly lower than the group not using the lubricant, showing that the application of the lubricant in the root canal preparing process is conducive to elimination of bacteria inside the root canal and to creation of conditions beneficial for healing of clinical chronic periapical periodontitis.
Owner:陕西恒远生物科技有限公司

Tooth-cleaning composition for whitening teeth and repairing wounds

The invention discloses a tooth-cleaning composition for whitening teeth and repairing wounds. The tooth-cleaning composition contains urea peroxide and bioactive glass. The tooth-cleaning composition is characterized in that the content of urea peroxide and bioactive glass is less than or equal to 20wt%, and the ratio of urea peroxide to bioactive glass is (0.05-1) to 1. The tooth-cleaning composition can be applied to various whitening tooth-cleaning matters for oral cavities, such as toothpaste, chewing gum, tooth coating powder, tooth strips and whitening gel and is capable of well whitening tooth surface, tooth enamel and dentine, and repairing the tooth enamel and the dentine, and therefore, the wounds are repaired.
Owner:徐阳波

Chitosan zwitterionic bactericide, preparation method and applications thereof

The invention discloses a chitosan zwitterionic bactericide, which has a molecular structural formula defined in the specification, wherein R1 and R2 are independently methyl, benzyl, C12H25 or C14H29, and at least one of R1 and R2 is C12H25 or C14H29. The preparation method comprises: taking chitosan, dissolving with an acetic acid solution, adding urea peroxide, and carrying out a stirring reaction for 4-10 h at a temperature of 50+ / -3 DEG C; precipitating with anhydrous ethanol, drying, dissolving in an acetic acid solution, and carrying out an alkylation reaction to generate an N-alkyl quaternary ammonium salt; and adding chlorosulfonic acid and formamide, and carrying out sulfonation to generate an O-sulfonic-N-alkyl quaternary ammonium salt so as to obtain the product. According to the present invention, the chitosan zwitterionic bactericide is a zwitterionic compound, has good compatibility with anionic polyacrylamide, cannot flocculate with anionic polyacrylamide in the sterilization of polymer-containing sewage, and has the SRB sterilization rate of 99% at a concentration of more than or equal to 50 mg / L.
Owner:CHINA PETROLEUM & CHEM CORP +1

Wool whitening detergent

The invention relates to a fur processing product and a using method, in particular to a wool whitening detergent, a using method thereof and a device. The wool whitening detergent is prepared from the following raw material medicaments in part by weight: 40 to 60 parts of urea peroxide, 10 to 17 parts of sodium polyphosphate, 5 to 10 parts of sodium dodecyl benzene sulfonate, 15 to 30 parts of anhydrous sodium carbonate, 15 to 30 parts of anhydrous sodium sulfate, 5 to 10 parts of ethylenediamine tetraacetic acid disodium salt and 3 to 10 parts of sodium carboxymethylcellulose. Solution is prepared by mixing the raw materials and adding water into the mixture, and the sheepskins are washed by adopting equipment with heating and oscillation devices, so that decontamination and whitening effects are good, use is convenient, cost is low, and the visual effect and quality of the fur can be improved considerably, and additive values can be increased. Thus, a feasible approach is provided to solve the problem that the fur of the sheep is contaminated and yellowed in a growth process.
Owner:杜井民 +2

Method of preparing oxidized starch

The invention discloses a preparation method of oxidized starch, and relates to a preparation method of starch. The oxidized starch comprises the following materials, has the following parts of weight of the materials, and the method comprises the following preparation procedure: (1) dissolving 1-5 parts of urea peroxide and 0.3-0.5 part of sodium bromide as a catalyst by 10-15 parts of water to obtain hydrating solution A; (2) adding 1000 parts of starch to a reaction kettle and jetting the hydrating solution A to the reaction kettle for even mixing; (3) allowing 0.5-2h reaction in the reaction kettle at the temperature of 80-100 DEG C; (4) discharging the obtained product and cooling the product by a fan to keep the water content at 12-14% to obtain the oxidized starch product; and (5) crushing the oxidized starch product, sieving with 40-mesh sieve and bagging. The preparation method has the advantages of simplifying production procedures; shortening reaction time, enhancing the production efficiency by 30%, reducing adjuvants and manufacturing cost by 50%, producing no polluting wastewater and benefiting environmental protection compared with the prior art.
Owner:DONGGUAN DONGMEI FOOD

Enhanced chemiluminiscence kit and preparation method of enhanced chemiluminiscence kit

The invention discloses an enhanced chemiluminiscence detection kit. The enhanced chemiluminiscence detection kit comprises a solution A and a solution B, wherein the solution A is 10-200 mM of a trihydroxymethyl aminomethane buffer salt solution comprising 0.1-10 mM of luminol, 1-10 mM of 3-(10'-phenothiazinyl)propane-1-sulfonate, and 0.5-3 mM of 4-morpholinyl pyridine; and the solution B is 1-10mM of a urea peroxide solution. A novel enhancer and an electron transfer intermediate are adopted, the proportion of the components is adjusted, the more effective peroxide is matched, so that a more sensitive detection result is acquired, a target protein is detected from the pic level to the femtogram level; relatively high light intensity is kept within one hour after the reaction starts, thethermal acceleration experiment is conducted at the temperature of 37 DEG C for 2 weeks, but the product effect is not obviously affected, and the enhanced chemiluminiscence detection kit can be stored stably at the temperature of 4 DEG C for 1 year.
Owner:JIANGSU KEYGEN BIOTECH CORP LTD
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