2490 results about "Ethylenediamines" patented technology

An electrolyte composition and method for planarizing a surface of a wafer using the electrolyte composition is provided. In one aspect, the electrolyte composition includes ammonium dihydrogen phosphate, diammonium hydrogen phosphate, or a mixture thereof. The composition has a pH between about 3 and about 10 which is environmentally friendly and does not present hazardous operation concerns. The composition may further comprise one or more additives selected from a group consisting of benzotriazole, ammonium citrate, ethlylenediamine, tetraethylenepentamine, triethylenetetramine, diethylenetriamine, amino acids, ammonium oxalate, ammonia, ammonium succinate, and citric acid.

The invention relates to a colored aluminum pigment with high color depth and a preparation method thereof. The colored aluminum pigment is obtained by depositing a layer of silicon dioxide on a flaky metallic aluminum sheet substrate and then depositing one or more layers of metal oxide on the surface of the silicon dioxide, and the colored aluminum pigment exists in the form of dry powder. The preparation method comprises the following steps: a. stirring to disperse commercially available aluminum pigment slurry in alcohol, alcohol ether or a ketone solvent; b. regulating the temperature to 30-80 DEG C, respectively adding tetraethoxysilane and aqueous solution to the dispersed aluminum pigment slurry with the mol ratio of the tetraethylorthosilicate to the water ranging from 1:0.5 to 1:20, adding a catalyst such as ethylenediamine solution or aqueous ammonia, and obtaining aqueous aluminum pigment slurry by vacuum filtration and washing after the reaction; and c. cladding the aqueous aluminum pigment slurry obtained in the step b with the hydrated metal oxide on the powdered aluminum surface in a liquid phase. The preparation method help prepare the colored aluminum pigment with diversified colors and high color depth without reducing brightness of the original aluminum pigment slurry.

A high-stability nalmefene hydrochloride injection is prepared from nalmefene hydrochloride (0.005-0.2 W / v %) and the medicinal carrier chosen from sodium chloride, glucose, beta-cyclodextrin, dextran, pectose, sorbitol, etc. Its preparing process is also disclosed.

The invention relates a compound represented by the formula (1):Q1-Q2-C(═O)—N(R1)-Q3-N(R2)-T1-Q4  (1)wherein R1 and R2 represent H or the like; Q1 represents an aromatic ring, heterocyclic ring or the like; Q2 represents a single bond, aromatic ring, heterocyclic ring or the like; Q3 represents a group or the like, Q4 represents an aromatic ring, heterocyclic ring or the like; and T1 represents —CO— or —SO2—, and a medicine which comprises the compound and is useful for thrombosis and embolism.

The invention relates to the technical field of electro-analytical chemistry and protein identification transducers, and discloses a synthesizing method of functionalized ionic liquid and a preparation method and application of a molecular imprinting electrochemical transducer composed of the functionalized ionic liquid, carboxylation multiwalled carbon nanotubes and glassy carbon electrodes. The preparation method of the molecular imprinting electrochemical transducer comprises the steps that the polymerizable amino-functionalized ionic liquid is used as a functional monomer, BSA is used as template protein, N, N'-methylene bisacrylamide is used as a cross-linking agent, an oxidation-reduction system composed of ammonium persulfate and TEMED is used as an initiator, after polymerization, a molecularly imprinted polymer film is formed on the surfaces of the glassy carbon electrodes decorating the carboxylation multiwalled carbon nanotubes, and then the template protein is eluted to obtain the molecular imprinting electrochemical transducer which can identify template protein in a specific mode. The molecular imprinting electrochemical transducer has the advantages of being simple in preparation, low in material cost, high in selectivity, good in biocompatibility, and capable of being used for identifying and detecting protein in aqueous solution.

Disclosed is a polishing composition which realizes both high planarity and reduction of corrosion in the surface of a wiring metal. Specifically disclosed is a polishing composition containing an oxidizing agent (A), at least one or more acids (B) selected from amino acids, carboxylic acids having 8 or less carbon atoms and inorganic acids, a sulfonic acid (C) having a concentration of not less than 0.01% by mass and an alkyl group having 8 or more carbon atoms, a fatty acid (D) having a concentration of not less than 0.001% by mass and an alkyl group having 8 or more carbon atoms, and at least one or more compounds (E) selected from pyridinecarbonyl compounds, nonionic water-soluble polymers, 2-pyrrolidone, N-methylpyrrolidone, 1,3-dimethyl-2-imidazolidinone, gramine, adenine, N,N'-diisopropylethylenediamine, N,N'-bis(2-hydroxyethyl)ethylenediamine, N,N'-dibenzylethylenediamine and N,N'-diphenylethylenediamine.

The invention relates to 1-(1,2-epoxypropyl)-N-nitroimidazoline-2-amine which has a structural formula as shown in the picture. A preparation method of the compound comprises the steps of adding ethylenediamine to a reaction container, dropwise adding epoxy chloropropane in the reaction container while stirring, reacting for 2-3h, cooling, and vaporizing out acetonitrile to obtain epoxypropyl ethylenediamine; taking and dissolving nitroguanidine and the epoxypropyl ethylenediamine into water, dropwise adding hydrochloric acid solution while stirring, reacting for 2-3h, cooling, extracting, desolventizing to obtain crude product, and recrystallizating to obtain the product; or adding N-nitroimidazoline, potassium carbonate and organic solvent to the reaction container, heating to 75-81.6 DEG C, dropwise adding epoxy chloropropane in the reaction container after dissolving the N-nitroimidazoline, continuously heating until completing the reaction after dropwise adding, cooling reaction products, filtering, vaporizing filtrate to dry, adding water to residues, extracting by using methylene dichloride, desolventizing to obtain phase product, and recrystallizating by using butanone to obtain the product.

The invention belongs to a non-metallic polymer carbon point with room temperature phosphorescent performance as well as a preparation method and application thereof to preparation of a polymer pointfilm material and anti-counterfeiting, and belongs to the technical field of luminous carbon nanometer material preparation. According to the method, polyacrylic acid or polyvinyl alcohol is weighed and is dissolved into deionized water; ethylenediamine, neovaricaine, propane diamine or butanediamine are weighed and are added into the polyacrylic acid solution; sufficient mixing and uniform stirring are performed; the obtained mixed solution is subjected to hydrothermal reaction for 2 to 10 hours under the condition of 150 to 250 DEG C; then, natural cooling is performed to room temperature; next, the water solution is subjected to dialysis, concentration, impurity and excessive raw material removal; finally, vacuum freeze drying is performed to prepare the polymer carbon point solid powder with the room temperature phosphorescent performance. The method provided by the invention effectively solves the problems of complicated synthesis, limited types, high price, high toxicity and thelike of the existing room temperature phosphorescent material, and can be used for simply and conveniently preparing the polymer carbon point with different room temperature phosphorescent characteristics in batches.

The invention relates to a polyurethane retanning filler. The preparation method of the polyurethane retanning filler comprises the following steps: preparing a prepolymer from raw materials IPDI (isophorone diisocyanate), PEG (polyethylene glycol), castor oil and DMBA (dimethylbenzanthracene); adding triethylamine to carry out neutralization reaction to generate salt; and adding an ethylenediamine water solution to carry out emulsification and chain extension to prepare the water-based polyurethane emulsion. The coated film of the water-based polyurethane emulsion has favorable water resistance and yellowing resistance.

The invention discloses a nanometer micelle capable of intelligently releasing medicine as well as a preparation method and an application thereof. The nanometer micelle provided by the invention comprises the components of polyethylene glycol-poly (aspartate-cysteine)-poly (aspartate-diisopropyl ethanediamine). The preparation method comprises the following steps of: firstly, synthesizing PEG-PBLA-N3 and PA-PAsp (DIP); then, taking cuprous bromide / pentamethyldiethylenetriamine as a catalyst system, and synthesizing PEG-PBLA-PAsp (DIP) through a click reaction of PEG-PBLA-N3 and PA-PAsp (DIP); and finally, carrying out an aminolysis reaction on 2-aminoethyl mercaptan to obtain the final polymer PEG-PAsp (MEA)-PAsp (DIP). The nanometer micelle provided by the invention can be used as a hydrophobic medicine carrier. The nanometer micelle is sensitive to pH value, the disulfide bond in the intermediate cross-linking layer is sensitive to a reducing agent, and the nanometer micelle has the characteristic of intelligently releasing medicine.