16 results about "Urea Peroxide" patented technology

The application belongs to the technical field of disinfection, and discloses a composite disinfectant and a preparation method thereof. The disinfectant is composed of potassium hydrogen persulfate, urea peroxide, sodium percarbonate, sodium hexametaphosphate, sodium citrate, ethylenediaminetetraacetic acid disodium, sulfamic acid, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, cocamidopropyl betaine, nano manganese dioxide, nano silicon dioxide, nano zinc oxide, sodium carboxymethyl cellulose, polyethylene glycol 6000, amaranth red, sodium chloride and a residual amount of anhydrous sodium sulfate, and is prepared through a feeding, mixing and granulating process. The application is suitable for disinfection in multiple scenes, has high safety and a simple preparation process, and is suitable for large-scale industrial production.

The invention discloses a copper-titanium etching solution, and relates to the technical field of microelectronic device manufacturing, and the copper-titanium etching solution comprises the following components by mass: 4.5-8.5% of ammonium persulfate; 1.5%-3.5% of urea peroxide; 1.0% to 2.0% of 1-hydroxybenzotriazole-5-carboxylic acid; 0.3% to 0.9% of 2-mercapto benzimidazole; 0.5% to 1.5% of sulfobutyl ether-beta-cyclodextrin; 0.8%-2.2% of L-aspartic acid-N, N-diacetic acid; 0.1% to 0.7% of iso-tridecanol polyoxyethylene ether; 0.05%-0.15% of ceric ammonium nitrate; 0.02% to 0.08% of sodium polyacrylate; and the balance of deionized water. According to the method, the matching problem of the etching rate is solved, the stability is improved, and substrate corrosion is avoided.

The invention belongs to the technical field of preparation of luminescent substrate solutions, and particularly relates to a single-component acridinium ester luminescent substrate solution and a preparation method thereof. The single-component acridinium ester luminescent substrate liquid comprises the following raw materials: sodium hydroxide, urea peroxide, N-methyl pyrrolidone, a surfactant, sodium percarbonate, a stabilizer, triton 405 and a catalyst, does not contain dangerous components, and is safer to use. The luminous substrate solution has the advantages of high luminous intensity, low background signal, good stability and thermal stability, low cost, convenience in use and the like. The preparation method of the luminescent substrate solution is simple and can be used for all types of magnetic particle chemiluminescence acridinium ester items.

The invention discloses a synthesis method of a viloxazine metabolite 5-hydroxyl viloxazine hydrochloride, which comprises the following steps: (1) dissolving viloxazine hydrochloride, namely a raw material I, in a solvent, and reacting with Boc anhydride under an alkaline condition to obtain an intermediate II; (2) dissolving the intermediate II in a solvent, and performing oxidation reaction with an oxidant in the presence of a metal catalyst to obtain an intermediate III; the metal catalyst is methylrhenium trioxide or ruthenium trichloride; the oxidizing agent is hydrogen peroxide or urea peroxide; and (3) dissolving the intermediate III in a solvent, and reacting under an acidic condition to obtain a compound IV, namely the viloxazine metabolite 5-hydroxyl viloxazine hydrochloride. According to the method, synthesis of the 5-hydroxyl viloxazine hydrochloride is realized for the first time, the viloxazine hydrochloride is taken as a raw material, a brand new method for synthesizing the 5-hydroxyl viloxazine hydrochloride is designed, and the purity of the product can reach 98% or above.

The application relates to the technical field of organic synthesis, in particular to a preparation method of vinyl sulfate and derivatives thereof, which comprises the following steps: S1, using an aprotic solvent as a reaction solvent, adding urea peroxide, and stirring until the urea peroxide is dissolved; S2, adding vinyl sulfite or a vinyl sulfite derivative dropwise, stirring to react, purifying, and obtaining the vinyl sulfite or the vinyl sulfite derivative; the method has the advantages of reducing the cost of a catalyst and reducing the amount of waste water.

The invention provides a UV-moisture dual-curing silicone adhesive as well as a preparation method and application thereof, and belongs to the technical field of sealants. The UV-moisture dual-curing silicone adhesive is prepared from the following components in parts by weight: 50 to 100 parts of vinyl alkoxy terminated polysiloxane, 10 to 50 parts of alkoxy terminated mercaptopropyl modified polysiloxane, 5 to 10 parts of white carbon black, 2 to 6 parts of a cross-linking agent, 1 to 4 parts of a silane coupling agent, 1 to 5 parts of a photoinitiator, 1 to 4 parts of a photosensitizer, 5 to 14 parts of a photoacid generator and 1 to 5 parts of urea peroxide. The silicone adhesive has excellent storage stability and deep curing speed.

The invention relates to the technical field of whitening toothpaste, and discloses oxygen-containing whitening toothpaste and a preparation method thereof.The preparation method of the oxygen-containing whitening toothpaste comprises the steps that on the basis of a free radical polymerization reaction mechanism, an alkenyl vanillin-based monomer and alkenyl silicon dioxide particles serve as raw materials, and a vanillin-based silicon dioxide type cross-linking agent is prepared; the preparation method comprises the following steps: cross-linking chitosan by using a vanillin-based silicon dioxide type cross-linking agent, and coating solid urea peroxide by using a formed gel carrier, so as to prepare chitosan-urea peroxide gel; chitosan-urea peroxide gel is used as a functional component and is mixed with basic raw materials in the toothpaste, and then the oxygen-containing whitening toothpaste is prepared through a vacuum homogenization process. The oxygen-containing whitening toothpaste prepared by the invention has a good whitening effect and can be used for improving the color and luster of teeth.

The present application provides a kind of urea peroxide tooth whitening gel and its preparation method, comprising: sodium fluoride solution is mixed with gum arabic solution uniformly, under the condition of stirring and heating, gelatin solution is added, and microsphere suspension is obtained;Pentanedial is added to the microsphere suspension and stirred, and intermediate microspheres are obtained;The intermediate microspheres are added to sodium alginate solution, the suspension is dropped into calcium chloride solution for gelation, and the composite microspheres are taken out and soaked in chitosan solution for oscillation, to obtain double-layer sustained-release microspheres;Carbomer is dispersed in deionized water, and after standing and swelling, a dispersion is obtained, glycerol, xylitol, double-layer sustained-release microspheres, urea peroxide and stabilizer are added to the dispersion, and after mixing uniformly, triethanolamine is added, to obtain urea peroxide tooth whitening gel.The gel product obtained by the present application has the advantages of efficient whitening, long-term anticaries, low irritation and high stability, etc., effectively solving the problems of easy decomposition and easy sensitivity of active ingredients in traditional products.

The invention discloses a stable slow-release urea peroxide tooth whitening agent composition and a preparation method thereof. The composition comprises whitening glue and a catalyst, the whitening glue is prepared from urea peroxide micro powder, a thickening agent, essence and propylene glycol; the catalyst comprises inorganic salt, a thickening agent, a basic catalyst, essence and water. According to the anhydrous whitening gel, propylene glycol is used as a matrix carrier, and a catalyst is aqueous gel; when in use, the two components are mixed according to a ratio of 4: 1, the mixed product is slowly dissolved by water in oral saliva, the active ingredient of urea peroxide is continuously released, and the whitening effect of the product is remarkably improved.

The invention relates to the field of oral care, in particular to a spray type tooth whitening composition suitable for people wearing invisible orthodontic appliances or transparent retainers as well as a preparation method and application of the spray type tooth whitening composition. The composition is prepared from the following components in percentage by mass: 1 to 3 percent of urea peroxide, 1 to 3 percent of xylitol, 0.5 to 1 percent of potassium magnesium phosphate, 0.5 percent of lauramidopropyl betaine, 0.5 to 1 percent of herba menthae extract, 0.2 to 0.5 percent of hydroxyethyl cellulose, 5 percent of glycerol and the balance of water, and the total percentage of the components is 100 percent. The whitening requirement of the specific crowd and the wearing compatibility problem of the appliance are solved; the device adopts a spray dosage form, can be conveniently and uniformly sprayed on the inner side of the appliance, and is convenient to use.

The invention relates to the technical field of molecular biological experiments, in particular to a nucleic acid scavenger which comprises a solution A and a solution B. The solution A is an active oxygen source component in the nucleic acid scavenger, the main component of the solution A is urea peroxide (0.25%-3%), and the solution A can generate excessive oxygen free radicals and effectively destroy DNA single-chain and double-chain structures. The liquid B is a synergistic and auxiliary component in the nucleic acid scavenger, the main component is horse radish peroxidase (0.1%-1%), urea peroxide can be promoted to quickly release high-activity oxygen free radicals, and the purpose of scavenging nucleic acid molecules is achieved. According to the method, nucleic acid pollution including genome DNA and nucleic acid amplification product pollution in the laboratory can be effectively eliminated, chemical pollution to the environment cannot be caused, the method has the advantages of being non-toxic, harmless and easy and convenient to operate, and a safer and more effective anti-pollution scheme is provided for the molecular biology laboratory.

The application discloses a stable slow-release urea peroxide tooth whitening agent composition and a preparation method thereof. The composition comprises a whitening glue and a catalyst. The whitening glue comprises urea peroxide micro powder, a thickening agent, essence and propylene glycol. The catalyst comprises an inorganic salt, a thickening agent, an alkaline catalyst, essence and water. In the application, the anhydrous whitening glue component takes propylene glycol as a matrix carrier, and the catalyst is an aqueous gel. When used, the two are mixed at a ratio of 4:1. The mixed product is slowly dissolved by saliva moisture, continuously releases urea peroxide active ingredients, and significantly improves the whitening effect of the product.

A composition for the oxidative brightening of keratin fibers, present as an anhydrous multi-component kit, which is designed to produce a ready-to-use mixture by adding water or an aqueous carrier liquid, characterized in that the composition comprises at least: a) a first component containing solid, anhydrous urea peroxide (carbamide peroxide) as an oxidizing agent, and b) a second component containing at least one organic silicon compound from the group of silanols, silanetriols or silanetriol copolymers.

The invention relates to a tooth bleaching agent which is prepared from the following components in percentage by weight: 5%-15% of urea peroxide, 2%-8% of a stable synergist, 1%-5% of a desensitization soothing agent, 3%-10% of a humectant, 0.5%-3% of a thickening agent, 0.1%-0.5% of a preservative, 0.05%-0.2% of essence and a certain amount of deionized water. The invention also relates to a preparation method of the tooth bleaching agent. The tooth bleaching agent disclosed by the invention has the following beneficial effects that the tooth bleaching agent is good in stability, and bleaching components can be prevented from being decomposed in a storage process; the bleaching efficiency is high, and the color of teeth can be rapidly brightened; meanwhile, the irritation is extremely low, tooth sensitivity can be relieved, gingival irritation can be relieved, the use safety and comfort are improved, and the toothpaste is suitable for industrial production and long-term use; according to the technical scheme, the preparation method is simple and easy to implement, mild in process condition and suitable for industrial production.

The invention provides a urea peroxide tooth whitening gel and a preparation method thereof, and the preparation method comprises the following steps: uniformly mixing a sodium fluoride solution with an Arabic gum solution, and adding a gelatin solution under stirring and heating conditions to obtain a microsphere suspension; adding glutaraldehyde into the microsphere suspension, mixing and stirring to obtain intermediate microspheres; adding the intermediate microspheres into a sodium alginate solution, dropwise adding the suspension into a calcium chloride solution for gelation, taking out the composite microspheres, soaking the composite microspheres into a chitosan solution, and oscillating to obtain double-layer sustained-release microspheres; carbomer is dispersed in deionized water, after standing and swelling, dispersion liquid is obtained, glycerin, xylitol, the double-layer sustained-release microspheres, urea peroxide and a stabilizer are added into the dispersion liquid, triethanolamine is added after uniform mixing, and the urea peroxide tooth whitening gel is obtained. The obtained gel product has the advantages of efficient whitening, long-term caries prevention, low irritation, high stability and the like, and the problems that active ingredients of a traditional product are easy to decompose, sensitivity is easy to cause and the like are effectively solved.

This invention provides an acidic chemical mechanical polishing slurry for gallium arsenide substrates and its application, belonging to the field of chemical mechanical polishing technology. The polishing slurry comprises, by weight percentage, 0.5–5 wt% modified cerium oxide abrasive, 0.1–3 wt% peracetic acid, 0.05–2 wt% urea peroxide, and the balance deionized water, with a pH value of 3.0–5.0; wherein the modified cerium oxide abrasive is nano-cerium oxide particles with surface-grafted organic acid functional groups, with an average particle size of 20–80 nm. The acidic chemical mechanical polishing slurry for fine polishing of gallium arsenide substrates provided by this invention, by employing a dual oxidant system composed of peracetic acid and urea peroxide, combined with modified cerium oxide abrasive with surface-grafted organic acid functional groups, balances surface reaction stability, abrasive dispersibility, and low-load mechanical removal requirements under acidic conditions, thereby helping to reduce surface scratches, particle residue, and subsurface damage depth, and improving the surface integrity of gallium arsenide substrates after fine polishing.