34 results about "N-Methylethanolamine" patented technology

The present invention discloses a moisture permeation and water proofing fabric, and a preparation process thereof. According to the fabric, a prime coat comprises: a polyurethane resin, butanone, toluene, water, 1,6-diisocyanatohexane and N-methylethanolamine; a first surface coating and a second surface coating comprise a polyurethane resin, butanone, toluene, water and N-methylethanolamine. The preparation process comprises: mixing 1,6-diisocyanatohexane and a main resin; mixing water and butanone to form a solvent; adding the solvent to the main resin mixing solution in at least 6 times; filtering the resulting mixed solution with a nylon net to obtain a filtered main resin solution; carrying out a deaeration treatment to form a prime coat slurry; blending a surface coating slurry with a matching solution viscosity of 3500-6000 mpas; coating the prime coat slurry on the surface of the base cloth to form the prime coat, and drying; coating the surface coating slurry on the surface of the prime coat in 2 times to form the surface coatings, and drying. In the prior art, micropores in the hydrophilic moisture permeation processing coating fabric are not uniform, and are easily expanded when contacting the water. With the present invention, the disadvantages in the prior art are solved, and the moisture permeation performance of the fabric is improved.

The invention provides an erasable neutral ink composition comprising a neutral ink component (A) and an erasable liquid component (B), wherein the component (A) comprises the following components in parts by weight: 2.0-7.0 parts of a microcapsule acid-alkali sensitive dye (a), 0.1-0.2 part of a thickening agent (b), 1.0-3.0 parts of a pH regulator (c), 10.0-15.0 parts of a humectant (d), 0.05-0.3 part of an antiseptic and anti-mildew agent (e), 0-0.5 part of other auxiliary agents (f) and 74-81.75 parts of deionized water (g), wherein the total weight of the components (a)-(g) accounts for 95-100% of the total weight of the composition, the viscosity of the neutral ink component is 1500-3000mPa.s, and the thixotropic value is more than or equal to 2.5; and the component (B) is an alkaline solution comprising an aqueous solution of one or more of sodium hydroxide, 2-amino-2-methyl-1-propanol, N-methylethanolamine, dimethylethanolamine, monoethanolamine, diethanolamine, triethanolamine, butyl ethanolamine, butyl diethanolamine, 2-amino-2-ethyl-1,3-propylene glycol and N-aminopropyl-methylethanolamine.

The invention discloses a degradable porous film for wind prevention, ventilation and bacteriostasis, which is prepared by the steps of: adjusting the liquid temperature of a reactor to 30 DEG C, and uniformly mixing butanone, dimethylformamide, toluene and polyurethane resin at the first stirring rate according to the mass ratio of 10:10:25:100 to form a first primary resin solution; slowly adding 1, 6-diisocyanate hexane into the first primary resin solution to form a first primary resin mixed solution; mixing the solvent which is formed by water and the butanone with the first primary resin solution to form the first primary resin mixed solution; mixing the regulated resin mixed solution with N-methylethanolamine; filtering the regulated first primary resin mixed solution by a nylon net of 100-200 meshes, so the filtered first primary resin mixed solution is obtained; and drying the macromolecular mixed resin which is scraped on the silicon oil release paper in a tensioning state by four stages. The porous film has uniform and dense micropores at a nanoscale of 50-200nm, has good wind prevention, moisture permeation, waterproofness, ventilation and excellent bacteriostasis, and is contributed to maintaining the long-term dryness of the film surface and wearing health when being used.

The invention discloses a preparation method of N,N,N'-trimethyl-N'-hydroxyethyl diaminoethyl ether. The preparation method comprises the following steps: 1) in a solvent I, sequentially performing nucleophilic substitution and hydrolysis on N, N-dimethylethanolamine and chloroacetaldehyde dimethyl acetal which serve as raw materials to obtain 2-[2-(dimethylamino)ethyoxyl]acetaldehyde serving as an intermediate product; and 2) in a solvent II, mixing N-methylethanolamine and the 2-[2-(dimethylamino)ethyoxyl]acetaldehyde, performing hydrogenation amination on the mixture serving as a reaction system by taking Raney Ni as a catalyst to prepare the N,N,N'-trimethyl-N'-hydroxyethyl diaminoethyl ether. The N,N,N'-trimethyl-N'-hydroxyethyl diaminoethyl ether prepared by the method has the characteristics of simple process, low cost, high yield and low pollution.

The invention provides catalyst for catalytically synthesizing an N-methyl ethanol amine compound and a preparation method thereof. The catalyst adopts a mesopore Al2O3 as a carrier; after modifying the carrier, alkali metal salt is dipped in organic solution of triphenylphosphine, and is dried to obtain the catalyst; and in the catalyst, the substance amount ratio of thetriphenylphosphine to an alkali metal element to an aluminum element is 1: (2.5-7.5): (4.5-9.3). The catalyst has the characteristics of simplicity in preparation, excellent dispersivity, large specific surface area, long service life and the like. The catalyst is applied in the reaction of N methyl ethanol amine organic amine (MMEA, DMEA), so that the conversion rate is high, and the selectivity is good.

The invention relates to a method for preparing a medicine intermediate, namely 1-methyl-3-phenyl-piperazine. Epoxy phenylethane and N-methyl ethanolamine react for ring opening in a methylbenzene solution and further react with thionyl chloride to obtain N-(2- chloroethyl)-N-methyl-2-chloro-2-phenylethylamine hydrochloride, the hydrochloride reacts with toluene sulfonamide and sodium hydroxide in a DMF solution to obtain 1-methyl-4-p-toluenesufonyl-3-phenylpiperazine, the 1-methyl-4-p-toluenesufonyl-3-phenylpiperazine reacts with concentrated hydrochloric acid to remove sulfonyl, and a product is obtained through neutralization extraction and recrystallization. Compared with the prior art, the method for preparing the 1-methyl-3-phenyl-piperazine has the advantages of low cost of selected raw materials, cost conservation, few synthesis steps, convenient and safe operation, simple post-treatment, high reaction yield, high product purity, good quality, and suitability for industrialized application.

The invention discloses a moisture-permeable waterproof film used for a fabric and a fabrication process thereof. According to the invention, a primary coating comprises polyurethane resin, butanone, toluene, water, hexane diisocyanate and N-methylethanolamine, and a first and second surface coatings comprise polyurethane resin, butanone, toluene, water and N-methylethanolamine. The fabrication process comprises the following steps: mixing hexane diisocyanate with main resin; mixing water with butanone to form a solvent which is put into a main resin mixed solution in at least six steps; filtering the mixed solution with a nylon net so as to obtain a filtered main resin mixed solution and carrying out deaeration treatment so as to form a primary coating slurry; preparing a surface coating slurry with the viscosity of a conjugate solution being 3500 to 6000 mpas; coating the primary coating slurry on the surface of release paper to form the primary coating, with coated weight being 4 to 6 g / m<2>; coating the surface coating slurry on the surface of the primary coat to form the surface coatings; and drying the release paper with the surface coatings and peeling the surface coatings off the release paper. According to the invention, the disadvantages that existing hydrophilic moisture permeable processing coating fabrics have nonuniform micropores and easily swell when contacting with water are overcome, and therefore, moisture permeable performance of a fabric itself is improved.

The invention discloses an under-coating paint used for moisture permeable waterproof fabrics and a preparation technology, the under-coating paint comprises polyurethane resin, butanone, toluene, water, 1,6-diisocyanatohexane and N-methyl ethanolamine; the preparation technology comprises the following steps: uniformly mixing butanone, water and polyurethane resin to form a main resin solution; adding N-methyl ethanolamine in the main resin solution; placing a mixed liquid of butanone and toluene in the main resin solution to form a main resin mixed solution; mixing 1,6-diisocyanatohexane and the main resin mixed solution according to mass proportion of 100:1.5-2.5 to form the adjusted main resin mixed solution; mixing water and butanone to form a solvent, placing the solvent in the adjusted main resin mixed solution by dividing at least six times for uniformly mixing; filtering the adjusted main resin mixed solution through a nylon net; and standing the filtered main resin mixed solution for at least 2 hours for deaeration treatment. The coating fabrics formed by the under-coating paint has uniform micropore, and is difficult to be expanded when contacting water, so that the moisture permeable performance of the fabric can be enhanced.

The invention relates to a preparation method of hydroxyl-terminated polyacrylate oligomers, which comprises the following steps: preparing low molecular weight polyacrylate oligomers with controllable molecular weight, such as polybutylacrylate, polyethylacrylate, oly(isooctyl acrylate), polymethyl methacrylate, a block copolymer of butyl acrylate and methyl methacrylate, a block copolymer of themethyl methacrylate and dimethylaminoethyl methacrylate, and the like by adopting atom transfer radical polymerization (ATRP) and using organic halide as an initiating agent; and then carrying out terminal group modification on the polymers by N-methylethanolamine to obtain the hydroxyl-terminated polyacrylate oligomers with controllable molecular weight. The prepared hydroxyl-terminated polyacrylate oligomers can be used for the production of polyurethane. Because the molecular weight of the hydroxyl-terminated polyacrylate oligomers is controllable, a polyurethane material with special performance can be prepared.

The invention discloses a nano coffee carbon function film with windproof air-permeable heat-accumulating warm-keeping effects. Polyurethane resin, water, toluene, butanone, 1,6- diisocyanato-cyclohexan, N-methyl ethanolamine, nano coffee carbon particles, a dispersing agent and a waterproofing agent are weighed according to the proportion of 100:40:20:20:3:1.5:10:1:0.5. The water, the toluene and the butanone are sequentially injected into a reaction kettle to be mixed to form a first resin solution. The 1,6- diisocyanato-cyclohexan and the N-methyl ethanolamine are sequentially injected into a first main resin solution to form a second resin solution. The nano coffee carbon particles are placed into the second resin solution. The dispersing agent and the waterproofing agent are sequentially added into macromolecule inorganic substance composite size. Prepared macromolecule inorganic substance is compounded to prepare film size. The nano coffee carbon function film is provided with even and compact nanoscale micropores, film indexes can reach 8000mm of hydrostatic pressure and 22000g / m<2> / 24h of moisture permeability, and the film combines a natural honeycomb structure of coffee carbon and a far infrared function and has the heat-accumulating warm-keeping antibacterial mite-inhabiting and far infrared health-care effects.

The invention discloses a surface coating slurry used for moisture permeable waterproof fabrics and a preparation technology, the surface coating slurry comprises polyurethane resin, butanone, toluene, water and N-methyl ethanolamine; the preparation technology comprises the following steps: uniformly mixing butanone, water and polyurethane resin to form a main resin solution according to mass proportion of 66-68:3-5:29; placing a mixed liquid of butanone and toluene in the main resin solution to form a main resin mixed solution; mixing N-methyl ethanolamine and main resin mixed solution to form adjusted main resin mixed solution; uniformly mixing water and butanone according to mass proportion of 9:1 to form a solvent; mixing the solvent and the adjusted main resin mixed solution; passing the main resin mixed solution adjusted by the step 5 through a nylon net with 100-200 meshes for filtering to obtain the filtered main resin mixed solution; and standing the filtered main resin mixed solution for at least 2 hours for deaeration treatment. The coating fabrics formed by the surface coating slurry has uniform micropore, and is difficult to be expanded when contacting water.