2421 results about "Ethyl Ethers" patented technology

The invention relates to a preparation method of tobacco extract granules, which comprises the following steps: firstly taking and cutting up tobacco leaves and/or tobacco stalks, taking water or ethanol or ethyl ether as a solvent for extraction, settling and filtering to obtain tobacco extract, then concentrating to the relative density of 1.00-1.30, and controlling the temperature to 20-40 DEGC to obtain tobacco extract concentrate or tobacco extractum; and including beta-cyclodextrin and flavouring essence for tobacco according to the mass ratio of 1-3:1 with the inclusion time of 1/5-3 hours to obtain a flavouring essence and beta-cyclodextrin inclusion compound, and then spray drying the flavouring essence for tobacco and beta-cyclodextrin inclusion compound and the tobacco extractconcentrate together to obtain tobacco spray dried powder; or directly spray drying the tobacco extractum to obtain the tobacco spray dried powder; and then adding excipient material to the tobacco spray dried powder for dry method or wet method granulation to obtain the tobacco extract granules. The tobacco extract granules obtained in the method disclosed by the invention are applied to cigarettes to improve the tar and harm reduction effect of the cigarettes, and can be used for aroma compensation, the utilization rate of waste tobacco leaf raw material is improved, and the cost of the cigarettes is reduced.

The present invention provides a rubber asphalt waterproof coating material, and belongs to the technical field of coating materials. The coating material is prepared from the following raw materials, by weight, 20-35 parts of a natural rubber, 10-15 parts of a thermoplastic styrene-butadiene rubber, 5-10 parts of acrylic resin, 3-5 parts of ethylene glycol ethyl ether, 20-30 parts of asphalt, 5-10 parts of chlorinated polyethylene, 1-2 parts of silicon carbide crystal whiskers, 3-6 parts of talc powder, 2-4 parts of diatomite , 2-4 parts of stearic acid, 3-8 parts of polyacrylamide, 6-9 parts of an ethylene-vinyl acetate copolymer, 3-5 parts of a plasticizer, 1-2 parts of a defoaming agent, 8-15 parts of a pigment, 2-3 parts of a surfactant, and 40-50 parts of water. The waterproof coating material provided by the embodiments still has good watertightness and good mechanical property after high temperature and high humidity destruction.

The invention relates to a blocking remover of a gas well shaft. The blocking remover comprises, by weight, 5-25% of an alcohol ether compound, 0.5-10% of a dispersant, 1-10% of a cleaning agent, and 0.5-5% of chelating agent, with the balance being a nitrogen-containing polar solvent, wherein the nitrogen-containing polar solvent is one selected from N,N dimethyl formamide, N,N dimethyl acetamide, and N-methyl pyrrolidone, the alcohol ether compound is one selected from glycol-ether, glycol-propyl ether, glycol-butyl ether, and diglycol-ether, the disperant whose micelle particle size is from 20nm to 100nm is a middle-phase microemulsion-type dispersant mixed by kerosene, water, a surfactant and a cosurfactant, the cleaning agent is one selected from allene diamine, acetonitrile and pentylamine, and the chelating agent is one selected from sodium citrate and EDTA. The blocking remover has the advantages that corrosivity is weak, that the speed of dissolving blockage is fast, that the product performance is stable in high temperatures, and that the blocking remover can reduce damages caused by water locking and fouling in areas close to gas wells, and can recover the permeability of storing layers.

The invention relates to the technical field of medicament delivery by a carrier, in particular to a lung targeting medicament carried proliposome used for injection and an application method thereof. Solid dispersion technology is adopted to obtain solution A by dissolving active medicament, phospholipid liposome, cholesterol liposome, surface active agent and acid type carrier in absolute ethyl alcohol or the mixed solvent of absolute ethyl alcohol and absolute ether; active carbon which is used for injection and has the volume being 0.1-1% of the volume of the solution A is added into the solution A; stirring, standing and filtering of the solution by a millipore filter are carried; therefore, aseptic solution B free of pyrogen is obtained; aseptic additives are added into the solution B under an aseptic condition; organic solvent is removed; and solid granular medicament carried proliposome or powdered medicament carried proliposome are obtained. The invention has the advantages that the preparation process is simple; the cost is low; the quality is controllable; the stability is good; and the invention is suitable for industrial production. The medicament carried proliposome prepared by effervescency dispersion technology has small and uniform particle diameter, the electric charge ranges from -10mv to -30mv, the proliposome can deliver over 90% medicament to a lung, and remarkable lung targeting effect is achieved, and thus being the best preparation delivering medicament by a carrier for treating lung diseases.

A pattern is formed by coating a first positive resist composition comprising a copolymer comprising lactone-containing recurring units, acid labile group-containing recurring units and carbamate-containing recurring units, and a photoacid generator onto a substrate to form a first resist film, patternwise exposure, PEB, and development to form a first resist pattern, heating the first resist pattern for inactivation to acid, coating a second positive resist composition comprising a C₃-C₈ alcohol and an optional C₆-C₁₂ ether onto the first resist pattern-bearing substrate to form a second resist film, patternwise exposure, PEB, and development to form a second resist pattern.

The invention discloses a cosmetic and a preparation method thereof. The cosmetic is prepared from five components of A, B, C, D and E. The cosmetic is composed of thirty raw materials including deionized water, hydroxyethyl cellulose, allantoin, carbopol U20, propanediol, 1,3-butanediol, sodium hyaluronate, an aloe vera extract, a natto extract, asiaticoside, vitamin C, bisabolol, an amino acid humectant, D-panthenol, VC ethyl ether, nicotinamide, glabridin, tranexamic acid, ceramide, algal polysaccharide, glucan, dipotassium glycyrrhizinate, an epidermal growth factor (EGF), triethanolamine, isothiazolinone, essence, squalane, jojoba oil, vitamin E oil and crystal sparkling pearl powder. The cosmetic has the functions of making skins fine and smooth, brightening the skins, repairing sensitive skins, controlling oil, toning skins and modifying skin blemishes, has no side effect or no dependence, and does not threaten health of a human body.

The invention relates to a long-acting emulsion-type antirust fluid used for metal rust prevention. Every 100 parts of the antirust fluid include the following components according to parts by weight: 3-15 oil soluble surfactant, 1-10 alcohol ether type couplant, 1-10 oily-type rust preventive and the balance base oil, wherein the oil soluble surfactant is any one of petroleum sodium sulfonate with molecular weight ranging from 300 to 800, sodium heavy alkylbenzene sulfonate and sodium sulfanilate, the alcohol ether type couplant is any one of ethyl alcohol, ethyl ether, butyl ether, diethylene glycol monobutyl ether, diethylene glycol propyl ether, butyl glycol ether and ethylene glycol propyl ether, the oily-type rust preventive is any one of barium petroleum sulfonate, dinonyl naphthalenesulfonic acid barium salt and barium soap of petroleum ester oxide, and the base oil is any one of cycloalkyl base oil and paraffin base oil. The long-acting emulsion-type antirust fluid has the advantages of meeting the demands of short-term rust prevention of metal and having lower using cost.

This invention relates to a method for producing Hypericum perforatum hyperoside and hypericin. This invention comprehensively utilizes Hypericum perforatum fruits which are rich in our country to produce both hyperoside and hypericin pharmaceutical active components with high recovery rate, high product purity, and low cost. During the producing process, it achieves the recovery and cycling use of many solvents like ethanol and ethyl ether, and also achieves the regeneration and cycling use of micelle reextracting agent and absorption resin. The plant biological active compounds produced by this invention can be broadly used in heat-clearing and detoxifying, astringing to arrest bleeding and promote diuresis, and antidepressant drug.

The present invention is one kind of quaternary ammonium salt surfactant containing pyridine ring and its preparation process. The preparation process includes: adding bromoalkane and metal lithium into anhydrous ethyl ether and reaction for 0.5-2 hr at temperature controlled near the freezing point; maintaining the temperature and adding excessive pyridine and toluene solution to react for 0.5-3 hr, raising temperature and reflux for hours; mixing alkyl pyridine and haloalkane dibromide in the ratio of 1-4 into alcohol solvent for reflux reaction for 15-72 hr; and re-crystallizing the product and drying. The surfactant of the present invention has very high surface activity, high sterilizing effect, high corrosion resistance, simple preparation process, mild reaction condition and other advantages.

The invention discloses high-hardness scratch-resistant double-component waterborne polyurethane woodwork varnish and a preparation method thereof. The varnish consists of double components, i.e., a primer and a curing agent, wherein the primer consists of hydroxyl polyacrylate dispersion resin, dispersant, nano-scale silicon dioxide glass powder, a scratch-resistant wax auxiliary agent, an organic bismuth/zinc composite catalyst, an antifoaming agent, a wetting agent, water and an additive, wherein the sum of the weight percentages of the A components is 100 percent; the curing agent consists of propylene glycol ethyl ether acetate and allophanate modified HDI (Hexamethylene Diisocyanate) tripolymer; the sum of the weight percentages of the B components is 100 percent; and the A components and the B components are mixed according to the equivalent molar ratio of n-NCO:n-OH as 1.38:1.62. The varnish has the advantages of high hardness, shortened surface drying time and hard drying time, long activation period, superior performance, environmental friendliness of the product and high operability.

The invention discloses a method for extracting portulace oleracea polysaccharide by use of a high-voltage pulsed electric field, which comprises the following steps: (1) performing pretreatment on fresh portulace oleracea; (2) putting the portulace oleracea powder obtained in the step (1) in a bipolar square-wave high-voltage pulsed electric field for extraction, and performing solid-liquid separation to obtain extracting solution; (3) adding a proper amount of 95% ethanol into the extracting solution, re-dissolving the precipitate in dissolved water and adding 95% ethanol for alcohol precipitation for 3 times, washing the precipitate with absolute ethyl alcohol, anhydrous ethyl ether and acetone, and performing vacuum drying to obtain the portulace oleracea polysaccharide extract. In the method for extracting portulace oleracea polysaccharide by use of high-voltage pulsed electric field technology, disclosed by the invention, due to low-temperature extraction, the structure of portulace oleracea polysaccharide is maintained to the greatest degree, and the product quality is improved; meanwhile, the process is advanced, the extraction time is short, the extraction rate is high, integration of low-temperature extraction and sterilization is realized, and thermosensitive substances are not degraded for sure. The method is a good method for extracting portulace oleracea polysaccharide, and the obtained polysaccharide can be applied to the fields of food, cosmetics and the like.

The disclosed preparation method for acetylized glucal comprises: preparing the D-acetylized glucose catalyzed by acids (HClO4, H2SO4, ZnCl2, AlCl3, p-toluenesulfonic acid and methanesulfonic acid); without separation or purification, leading directly the product into HBr or equivalent (such as PBr3 and water) to obtain and then recrystallize the coarse 1-bromoacetyl glucose with one of ethyl ether, propyl ether and isopropyl ether; adding Zn, ZnCl2, methanol and Co-ion catalyst to prepare the coarse target; recrystallizing with alcohol for the refined product. This invention saves step and reduces cost.

The invention relates to fluorescent probe detection, in particular to a derivative L of rhodamine B, preparation thereof and use thereof. The derivative L of the rhodamine B has a structural formula (I). The preparation method of the derivative L of the rhodamine B comprises: firstly, reacting the product of the hydrazinolysis of the rhodamine B with glyoxal to obtain an intermediate compound; and secondly, reacting the intermediate compound with benzyldithiocarbazate in a molar ratio of 1:1 in absolute ethanol under a refluxing condition for 4 to 6 hours, cooling, filtering precipitated solid, washing with absolute ethanol and ethyl ether in turn and drying under vacuum to obtain a target compound. The derivative L of rhodamine B can serve as a fluorescent probe. In the invention, the derivative L of rhodamine B is obtained by an effective synthesis means, the copper ion selectivity is high, and the detection of copper ions can be realized on the basis of optimized experimental conditions.

The molecular formula of designed fire retardant for cellulose is C12H26O4P2S2N2 named as DDPSN. The preparing method includes reacting on trichloro-thiophosphorus with neophenyl dialcohol for 1.5-3 h. under dissolving of benzene or pyridine at 45-75 deg.C temperature, washing and distillating to remove benzene, forming DDSP by benzinum recrystallization and by drying for 24h. with airflow, reacting on drid DDSp with ethylene diamine for 3-5 hr. at 10-30 deg.C temp under dissolving of chloroform or carbon terochloride and obtaining DDPSN by ethyl ether recrystallization through 24 hr. drying with airflow.

The present invention relates to one kind of antiseptic active cationic dye and its preparation process. The dye has matrix in anthraquinone structure, active group of sym-triazine monochloride or sym-triazine monofluoride, water soluble group of long carbon chain quaternary ammonium salt structure and the chemical structure as shown. The dye may be used in dyeing and antiseptic finishing of various kinds of fiber and has high antiseptic effect, high color fastness and lasting antiseptic performance. It is prepared through the following steps: dissolving anthraquinone A and sym-triazine trichloride or sym-triazine trifluoride in nitrobenzene solvent, heating, cooling and filtering to obtain intermediate B; dissolving the intermediate B in DMF solvent, adding tertiary amine, heating to react, evaporating DMF and vacuum drying to obtain intermediate D; dissolving the intermediate D in DMF solvent, adding alkyl halide, heating to react, washing with ethyl ether, re-crystallizing and drying.

The invention discloses a carbon build-up cleaning agent and its use in the regeneration process of devitalized catalyst, the carbon build-up cleaning agent comprises the following components: ethanolamine 5-95 v%, ethyl ether 5-95 v%, butanol 0-90 v%, phenol 0-90 v%. The carbon build-up cleaning agent can be used for catalysts with appreciable heat release during regeneration, especially for devitalized hydrogenation catalyst and methane aromatization catalyst requiring oxidation burning-out for carbon build-up cleaning.

An artemether microemulsion as novel antimalaria contains artemether, arteether or artesunate, emulsifier, emulsifying aid and plant oil. It can be applied by intravenous injection, oral taking, percutaneous absorption, and spray. Its preparing process is also disclosed.

A pattern is formed by coating a first positive resist composition comprising a copolymer comprising lactone-containing recurring units and acid labile group-containing recurring units onto a substrate to form a first resist film, patternwise exposure, PEB, and development to form a first resist pattern, applying an amine or oxazoline compound to the first resist pattern for inactivation, coating a second positive resist composition comprising a C₃-C₈ alcohol and an optional C₆-C₁₂ ether onto the first resist pattern-bearing substrate to form a second resist film, patternwise exposure, PEB, and development to form a second resist pattern.

Provided is a formula for coal-fired flue gas denitrification catalyst activity regeneration, belonging to the technical field of air pollution control. The formula of the invention mainly makes use of a composite regeneration solution mainly including (NH4)2SO4, ethylene diamine tetraacetic acid (EDTA), alkylphenol ethoxylates (OP-(n), n=10), high-carbon fatty alcohol polyoxyethylene ether (penetrantfor JFC and nylon leveling agent O), ammonium metavanadate and ammonium paratungstate to recover the activity of a deactivated catalyst. The formula of the invention selects the inexpensive and operationally safe (NH4)2SO4 as the main ingredient of a regenerant, adds the EDTA component, and effectively removes heavy metal elements on the surface of the catalyst. The formula can maximally recover the catalyst activity on the basis of no influence on the mechanical properties of the catalyst.

The co-solvent composition for compounding methanol gasoline consists of methyl tert-amyl ether 0-61 weight portions, dimethyl carbonate 0-52 weight portions, methyl tert-butyl ether 0-47 weight portions, allcyl polyoxyethylene ether 0.1-10 weight portions, isopropyl ether 0-10 weight portions, ethyl ether 0-30 wt%, tert-butanol 0-45 weight portions, iso-butanol 0-25 weight portions, isopropanol 0-15 weight portions, antioxidant í‹501íŒ 0-8 weight portions, xylene 0-20 weight portions, urotropin 0-7 weight portions, butanone 0-36 weight portions and acetone 0-20 weight portions. It is added while compounding methanol gasoline to raise the intersolubility between methanol and gasoline and raise the relevant physical and chemical performances of methanol gasoline.

The preparation method of polyethylene glycol-b-polylactic acid amphiphilic diblock copolymer (PEG-b-PLA) includes the following steps: adding lactic acid liquor and monocapoped polyethylene glycol or monocapped epoxyethane and epoxypropane copolymer in polymerization still according to a certain proportion, under the protection of nitrogen gas, reducing pressure and dewatering at 120-160 deg.C, adding a proper quantity of catalyst, under the condition of 160-200 deg.C and below 20 mmHg continuously reacting to obtain crude product, using chloroform to dissolve said crude product at room temp., adding acetone/ethyl ether mixer solution at below 10 deg.C to make precipitation and separation, centrifugal separating or reduced pressure suction filtering so as to obtain the invented product which can be self-assembled into nano ball as nano carrier for control-releasing medicine.

The invention discloses a method for synthesizing adduct of alkynediol and epoxyethane. In the method, alkynediol and epoxyethane are used as raw materials, triethylamine is used as a catalyst, absolute ether, benzene or toluene is used as a solvent, a reflux reaction is performed under a low-temperature and high-efficiency refluxing and condensing conditions, the organic solvent and catalyst are removed by rotary evaporation, and thus, the short-chain epoxyethane adduct is obtained. Meanwhile, the short-chain epoxyethane adduct can be added with a certain amount of epoxyethane by a one-step or multi-step process to react under the reaction conditions to obtain adducts with different chain lengths. In the invention, reaction under normal temperature is realized, and expensive high-voltage equipment is not used; the reaction conditions, such as reaction temperature, can be regulated by using solvents with different boiling points and are easy to control; and the method ahs a great significance for reducing equipment investment and production cost, promoting safety operation and the like and has a wide prospect.

The invention discloses a chinlon oiling agent for braided silk. The chinlon oiling agent comprises mineral oil, a polyoxyethylene (5) potassium lauryl phosphate, a nonionic surfactant, lauryl oleate, and butyl ethyl ether. The chinlon oiling agent of the invention has the advantages of reasonable formula, good usage effect, and low production cost.

The invention discloses a method for producing ethoxyquinoline. The method comprises the following steps: adding materials, namely para aminophenyl ethyl ether, a composite catalyst and toluene, into a reaction kettle in sequence; under a heating state, circulating the materials between an axial adiabatic fixed bed reactor filled through a metal corrugated pore plate by a circulating pump; dripping acetone into the kettle at a temperature of between 120 and 145 DEG C for about 22 to 24 hours to carry out cyclize; stopping dripping after cyclization rate is detected to reach 90.0 percent; preserving the temperature for 2 hours; washing and keeping the mixture stand; draining scouring water and reclaiming the catalyst; transferring upper materials into a distillation still to be distilled; distilling toluene at the still temperature of between 100 and 160 DEG C; distilling a low-boiling-point substance at the still temperature of between 160 and 175 DEG C; distilling front-end volatiles at the still temperature of between 175 and 190 DEG C; and distilling the product at the still temperature of between 190 and 240 DEG C. The method has the advantages of reduction of synthesis time, improvement of product yield, high production efficiency, non waste water drainage and scale production convenience.

The invention provides a nano-imprint template which comprises a flexible substrate and a polymer layer formed on a surface of the flexible substrate, wherein, a nano-graph is formed on a surface of the polymer layer away from the flexible substrate; and the polymer layer is a solidified cross-linked substance composed of a hyperbranched lower polymer, perfluoro polyether, methyl methacrylate and an organic diluent. The invention further provides a preparation method of the nano-imprint template.

The invention belongs to the technical field of medical and chemical synthesis and discloses a method for synthesizing carbamic ester through alkyl boronic acid, amine and carbon dioxide. The synthesizing method includes the steps that the alkyl boronic acid, the amine and a solvent are added in a pressure-resistant reactor, cuprous oxide is added as a catalyst, alkali is added as a ligand, boron trifluoride diethyl etherate is added as an additive, oxygen and carbon dioxide are introduced, stirring reaction is carried out for 6-24 hours at the temperature of 40-120 DEG C, the mixture is cooled to room temperature after the reaction is finished, after reaction liquid is filtered, pressure is reduced, the solvent is steamed away, a rough product is obtained, and column chromatography and purification are carried out on the rough product to obtain the carbamic ester. The raw materials used in the synthesizing method are non-toxic or low in toxin, low in price and easy to obtain, reaction operation is safe and easy, adaptability to functional groups is good, adaptability to a substrate is wide, and the method has good industrial application prospects.

The preparation method of nano medicine carrier includes the following steps: utilizes the iron chloride and ferrous chloride mixed liquor and ammonia water to make them produce reaction to obtain tri-iron tetroxide solution; mixing said tri-ion tetroxide solution with amycin and albumen, adding cotton seed oil, placing them into cell disintegrator to make ultrasonic uniformly-mixing and make theparticles in which the amycin and albumen are covered with magnetic iron be dispersed in the oil and fat, then using ethyl ether to dissolve the oil and fat so as to obtain the invented product.