2309 results about "Carboxylic salt" patented technology

A method of forming a film on a substrate using chemical vapor deposition techniques and carboxylate complexes. The complexes and method are particularly suitable for the preparation of semiconductor structures.

Nanoparticle compositions of noble metals, and methods of making them, are described. The nanoparticle compositions are made by reacting a salt or complex of a noble metal, such as Au, Ag, Cu or Pt, with a weak ligand, and a reducing agent, in a single liquid phase. The noble metal is typically provided as a halide or carboxylate. The ligand is preferably a fatty acid or aliphatic amine. The reducing agent is preferably a borohydride reagent, hydrazine, or a mixture thereof. Nanocrystals in the size range of 1 nm to 20 nm are produced, and can be made in substantially monodisperse form.

Nucleoside phosphinoamidite carboxylates and analogs are provided that have the structure of formula (III)

wherein A is hydrogen, hydroxyl, lower alkoxy, lower alkoxy-substituted lower alkoxy, halogen, SH, NH₂, azide or DL wherein D is O, S or NH and L is a heteroatom-protecting group, unsubstituted hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, or substituted heteroatom-containing hydrocarbyl; B is a nucleobase; and one of R¹¹ and R¹² is a blocking group and the other is (IV) or (VI)

in which W, X, Y, Z, R¹ and n are as defined herein.

The present invention provides a method of producing a fluoropolymer, wherein polymerization using a carboxylate ester bond-containing carboxylic acid derivative as a surfactant in an aqueous medium to give the fluoropolymer is conducted, the above carboxylate ester bond-containing carboxylic acid derivative has a carboxylate ester bond and —COOM (M representing H, NH₄, Li, Na or K), the above carboxylate ester bond may optionally be substituted by fluorine atom.

The invention relates to a preparation method of a slow-setting polycarboxylic acid water reducing agent, which is implemented by carrying out free radical copolymerization reaction on allylsulfonate monomers, acrylic monomers, polyethylene glycol nono-methyl ether methacrylate macromonomers and maleic anhydride grafted beta-cyclodextrin macromonomers. The invention is characterized in that a beta-cyclodextrin side chain is introduced into a polycarboxylic acid main chain, so that the polycarboxylate water reducing agent has favorable slow setting property, micro air-entraining property and better fluidity. The obtained polycarboxylic acid water reducing agent has the advantages of stable product performance, strong adaptability to cement and favorable compatibility; and the cement paste fluidity is up to higher than 290mm (W/C=0.29), the water reducing rate of concrete is up to 30-40%, and the slump protection time is 3-5 hours. The preparation method provided by the invention has the characteristics of unique technique, excellent product performance and the like.

A degradable disposable diaper includes one or more sheets made of polyolefin with the polyolefin including a prodegradant causing the sheet to degrade. The prodegradant includes a metal compound such as a metal selected from the group consisting of cobalt, cerium, and iron. The preferred metal compound is a metal carboxylate. The polyolefin is preferably polyethylene or polypropylene. A secondary polyolefin may be used to aid the incorporation of the prodegradant into the primary polyolefin. A filler may also be used with the polyolefin and prodegradant. The filler preferably has a particle size less than 150 mesh and is free of water. The filler is preferably calcium carbonate having a 1 to 10 micron particle size. The sheet contains between about 0.001 and about 15 weight % prodegradant and most preferably between about 0.01 and about 3 weight % prodegradant. The sheet also includes up to about 15 weight % filler. The diaper also includes a degradable absorbent core.

The invention discloses a preparation method and an application of an acrylate heterozygotic emulsion. In the invention, the acrylate heterozygotic emulsion is synthesized by adopting a seed emulsion polymerization process and combining a process of instantly neutralizing and segmentally adding polar monomers. The acrylate heterozygotic emulsion comprises macroparticles consisting of polymers P2 rich in hydroxyl groups on a surface layer and microparticles consisting of polymers P1 rich in carboxylate on the surface layer. Compared with a conventional hydroxy acrylate emulsion, the acrylate heterozygotic emulsion has smaller mean grain size and wider grain size distribution on emulsion particles. The acrylate heterozygotic emulsion can be adopted to prepare aqueous bi-component polyurethane wood coatings, and a coating layer of the coating has excellent property of resisting water and solvents, high crosslinking density and hardness, good mechanical property, scratching resistance and wear resistance. The acrylate heterozygotic emulsion has compact coating structure, high glossiness and better combination property, and not only can be applied to high-grade wood coatings, but also can be applied to automotive refinish paint, metallic anti-corrosion paint, other industrial protective paint, and the like.

The invention belongs to the technical field of preparation of semiconductor nanomaterials and discloses a single-size CsPbX3 perovskite nanocrystalline preparation method. The method includes: adding cesium carboxylate solution into N2 protected lead bromide solution to realize reaction for obtaining single-size CsPbBr3 perovskite nanocrystalline; scattering the single-size CsPbX3 perovskite nanocrystalline into normal hexane, and gradually adding lead chloride solution or lead iodide solution drop by drop to realize reaction for obtaining single-size CsPbBr3 perovskite nanocrystalline. The single-size CsPbX3 perovskite nanocrystalline preparation method has the advantages of simplicity in operation, easiness in size adjustment of products, component controllability and the like.

Alicyclic carboxylates, such as alicyclic norbonane sodium dicarboxylate, may be used in relatively small amounts as crystallization nucleating agents for foamed polypropylene. The alicyclic carboxylates give improved cell structures at lower proportions than conventional crystallization nucleating agents. The use of alicyclic carboxylate crystallization nucleating agents together with conventional nucleating agents may help give lower density polypropylene foams across a broader melt temperature range.

Processes for preparing 10-amino-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydropyrimido[1,2-a]azepine-2-carboxylates and related compounds are disclosed. The preparation of carboxamide derivatives from these carboxylates is also disclosed. The carboxamides are HIV integrase inhibitors and are useful for treating HIV infection and AIDS.

The invention relates to a composite oil displacement agent containing a polymer and a cationic/anionic surfactant, and an oil displacement method, and mainly solves a problem of bad oil displacement efficiency of composite oil displacement agents used in the prior art. The composite oil displacement agent containing a polymer and a cationic/anionic surfactant includes the cationic/anionic surfactant, the polymer and water; the cationic/anionic surfactant comprises an anionic surfactant and a cationic surfactant according to a molar ratio of (1-100):1; the anionic surfactant is anyone of sulfonate, carboxylate and phosphate; the cationic surfactant is a quaternary ammonium salt or quaternary ammonium alkali; the polymer is modified polyacrylamide obtained by copolymerizing two monomers of acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, and a molar ratio of the two monomers in the modified polyacrylamide is (1-4):1. The composite oil displacement agent solves the problem and can be used for enhanced oil displacement production of high temperature and low salinity oil reservoirs.

To provide a defoaming agent causing less cissing. The defoaming agent contains an aluminum carboxylate (A) and hydrocarbon oil (B), but contains no alkaline earth metals, wherein (A) is an aluminum di-carboxylate (A2) or a mixture of an aluminum mono-carboxylate (A1) and an aluminum di-carboxylate (A2), the content, by weight, of (A) is 0.1-60% and the content of (B) is 40-99.9% based on the weight of (A) and (B), and the content of A(1) is <=40% based on the total weight of (A1) and (A2). In addition, the defoaming agent contains free fatty acid (FA) and the content of (FA) is preferably 1-30% based on the weight of (A1) and (A2). In addition, the defoaming agent contains hydrocarbon oil (B) containing aromatic carbon (BA), and the content of (BA) is preferably 1-30% by number based on the total number of carbons of (B).

There is provided a water-based ink composition including water-insoluble colored particles, and water-insoluble particles that includes a carboxylate emulsifier and a water-insoluble polymer, and an ink set including at least one water-based ink composition, and a treating liquid that changes pH of the water-based ink composition.

The invention discloses a formula of a ceramic aggregate aerated concrete brick and a method for making the concrete brick. The compositions in portion by weight of the concrete brick are: 12 to 26 portions of cement, 26 to 46 portions of fly ash, 16 to 28 portions of ceramic aggregate, 2 to 6 portions of slag, 2 to 6 portions of cinder, 16 to 26 portions of water and 2 portions of addition agent, wherein the concrete matters in percentage by weight of the addition agent are: 10 to 18 percent of aluminum powder (a foaming agent), 20 to 45 percent of polycarboxylate (a water reducing agent), 15 to 35 percent of 1122 fly ash excitant and 20 to 50 percent of coagulant hardening accelerator in which calcium chloride and sodium sulfate compounds respectively occupies 50 percent. The concrete steps for making the ceramic aggregate aerated concrete brick are as follows: raw materials are weighed; the weighed raw materials are placed in a stirring machine to carry out stirring and mixing in advance; an addition agent is added in the stirring machine to carry out full stirring; a brick die is prepared, and stirred raw materials are cast in the brick die; initial set and forming are carried out; stripping is carried out; a water-proofing agent is sprinkled on a stripped brick; and natural curing is carried out. Moreover, the obtained brick has light dead weight, low density, high strength, low water absorption rate and excellent sound insulation performance and heat-shielding performance.

This invention relates to a method of absorbing SO2 gas by the hydramine carboxylate ion liquid, which belongs to the chemical field. In the normal temperature, the aminoethyl alcohol, diethylehthanolamine, triethanolamine, and the diglycol have neutralization reaction with the acetic acid, lactic acid or the acid with similar structure, and then create a series of corresponding alkaline ion liquor. It cost small balancing time through using that ion liquor or loaded in the carrier to absorb the acid gas SO2.

The present invention provides a processes, having practical utility, for preparing 2-oxindoles, N-hydroxy-2-oxindoles, or mixtures thereof comprising: catalytically hydrogenating a 2-nitroarylmalonate diester to produce a 2-(N-hydroxyamino)arylmalonate diester, a 2-aminoarylmalonate diester, or mixtures thereof as a first reaction intermediate; cyclizing, by intramolecular aminolysis of one ester group, the first reaction intermediate to produce a N-hydroxy-2-oxindole-3-carboxylate ester, 2-oxindole-3-carboxylate ester, or mixtures thereof as a second reaction intermediate; and hydrolyzing and decarboxylating the remaining ester group of the second reaction intermediate to produce the N-hydroxy-2-oxindole, the 2-oxindole, or mixtures thereof, wherein the cyclization reaction and the hydrolysis and decarboxylation reaction are conducted in situ with the catalytic hydrogenation reaction without isolation of said reaction intermediates.

The invention discloses technology of preparing aluminium oxide based continuous fibers by a sol-gel process, which is characterized by adding one or more organic acid containing 1-8 carbon atoms into distilled water, adding aluminum powder and a catalyst after the mixture is evenly mixed and ensuring the mixture to react under the conditions of continuous stirring and reflux condensation under certain temperature to obtain transparent aluminum carboxylate solution; evaporating redundant organic acid in the aluminum carboxylate solution and then adding a solvent, a silicon-containing additive and a given quantity of spinning assistants to obtain precursor solution of aluminium oxide based fibers; concentrating the solution to obtain precursor sol of spinnable aluminium oxide based fibers; spinning by a dry or wet method to obtain aluminium oxide based continuous precursor fibers containing organics; and drying and sintering the precursor fibers to obtain the aluminium oxide based fibers. The aluminium oxide based continuous fibers prepared by the technology can be used in reinforcement in the composite, further improve the strength, ductility and heat resistance of the material and are widely applied in the fields of aerospace, automobile and the like.

The invention discloses alkali lignin carboxylate and a preparation method thereof. A prescription of the modified raw material comprises the following components in parts by mass: 200 parts of alkali lignin, 20-50 parts of activating agent and 40-80 parts of carboxylic reagent; and the alkali lignin is bamboo pulp or straw pulp paper-making black liquid acid precipitating alkali lignin and has the solid content of 95 percent by mass. In the preparation, the alkali lignin is used as a main raw material, the activating agent and the carboxylic reagent are added, and the alkali lignin carboxylate is obtained by activating and electrophilic substitution reaction under basicity. By means of the preparation method, the water-soluble high molecule carboxylate is prepared by using alkali lignin with wide raw material source; and the prepared alkali lignin carboxylate has higher carboxyl content, favorable water solubility and strong surface activity. The alkali lignin carboxylate prepared by the preparation method disclosed by the invention has favorable hydrophilicity and surface activity, and the carboxyl contained in the molecules of the alkali lignin carboxylate has favorable chelating performance; and the alkali lignin carboxylate can be used as a functional auxiliary agent to be applied to a plurality of industrial fields and is a novel water-soluble lignin derivative.

New uses for phenylketone carboxylate compounds and substituted aromatic compounds of Formula I, Formula I, IA, IB and IC, and their pharmaceutical acceptable salts are described for prevention or treatment of diabetes or a diabetes-related disorder in a subject in need thereof. Diabetes and diabetes-related disorder include Type I diabetes, Type II diabetes, maturity-onset diabetes of the young, latent autoimmune diabetes of adults (LADA), gestational diabetes, diabetic nephropathy, proteinuria, ketonuria, obesity, hyperglycemia, glucose intolerance, insulin resistance, hyperinsulinemia, hypercholesterolemia, hypertension, hyperlipoproteinemia, hyperlipidemia, hypertriglyceridemia, dyslipidemia, metabolic syndrome, syndrome X, diabetic neuropathy, diabetic retinopathy, hypoglycemia, cardiovascular disease, atherosclerosis, diabetic kidney disease, ketoacidosis, thrombotic disorders, sexual dysfunction, dermatopathy, edema, metabolic syndrome and renal disorders. The related pharmaceutical compositions and methods are also described. These compounds can be used in combination with comprising a therapeutic agent for lowering or controlling blood glucose level such as metformin or a thiazolidinedione.

The invention provides a working electrolyte for a flame-retardant wide-temperature high-voltage aluminum electrolytic capacitor, which comprises the following components in percentage by weight: 45-80% of main solvent, 0.1-5% of oxidation film stabilizer, 5-15% of secondary solvent, 0.2-3% of hydrogen absorption agent, 5-10% of solute, 5-15% of flame retardant and 5-15% of spark voltage increasing agent. The invention also provides a preparation method of the electrolyte and application of the electrolyte in preparation of a high-voltage electrolytic capacitor. In the electrolyte, appropriate solvent combination is adopted, thus the wide temperature from -40 DEG C to 105 DEG C is realized; a composite solute of an organic carboxylate with a branched chain and a straight-chain carboxylate with a long carbon chain is adopted, thus the stability is ensured, and the cost is controlled; the appropriate spark voltage increasing agent, oxidation film stabilizer and hydrogen absorption agent are added, thus the spark voltage of the electrolyte is increased, and the characteristic parameters of the aluminum electrolytic capacitor are not deteriorated after the aluminum electrolytic capacitor is used for a long time; and the flame retardant is added, thus the aluminum electrolytic capacitor is difficult to burn after striking fire.

The invention provides a slump loss resistant type gather carboxylate water-reducing agent, which is a polymer of prenyl polyoxyethylene ether or prenyl polyoxyethylene propenyl ether or methyl allyl polyoxyethylene ether or methallyl polyoxyethylene propenyl ether (a macro-monomer A) and unsaturated carboxylic acid (a micro-monomer B) and an unsaturated carboxylic acid derivative (a micro-monomer C), belonging to the field of concrete admixtures. A synthetic method is as follows: the water-reducing agent is prepared by initiating the macro-monomer A, the micro-monomer B and the micro-monomer C through an oxidative-reductive initiating system by taking water as a solvent at lower temperature, and carrying out copolymerization under the action of a chain transfer agent. The water-reducing agent overcomes the disadvantages of being poor in slump loss resistance, long in setting time and the like of the water-reducing agent synthesized by allyl polyoxyethylene ether and has the advantages of being high in slump loss resistance, good for being suitable to different cements and low in influence on concrete setting time.