5723 results about "Chloroform" patented technology

The invention provides a method for preparing a titanium dioxide nano belt, belonging to the nano material technical field. The prior methods for preparing the titanium dioxide nano belt comprise the hydro-thermal method and the combination method of the sol-gel method and the hydro-thermal method. The prior electrostatic spinning method is applied to the preparation of nano fibers. The invention comprises three steps that: 1. a spinning solution is prepared; the mixture of polymethylmethacrylate and vinylpyrrolidone is used as a macromolecule template, and the mixture of chloroform and N,N-dimethylformamide is used as a solvent; 2. a titanium alkoxide / macromolecule template compound nano belt is prepared; the electrostatic spinning method is used, and the technical parameters are as follows: the voltage is between 15 and 25kV and the curing distance is between 15 and 30cm; 3. a TiO2 nano belt is prepared; the heat treatment method is used, and the technical parameters are as follows: the rate of temperature rise is between 0.5 and 2 DEG C / min and the heat preservation time at the temperature of between 500 and 900 DEG C is between 10 and 15h; for the TiO2 nano belt prepared, the width is between 5 and 15mu m, the thickness is between 30 and 60nm and the length is more than 200mu m; the TiO2 nano belt comprises a pure phase anatase type TiO2 nano belt and a pure phase rutile type TiO2 nano belt.

The invention relates to a method for purifying sesamin and sesamolin in sesame oil, which comprises the steps of: separating lignanoid compounds without fat constituents from the sesame oil first; adding ether into the lignanoid compounds to precipitate the sesamin; performing the filtration; dissolving an obtained filtrate by chloroform after concentration under reduced pressure, adding petroleum ether into the mixture until white opacity appears; heating and dissolving the obtained solution; and standing the obtained solution to precipitate the sesamolin. The method for purifying the sesamin and the sesamolin has the advantages of simple operation, safety, economization, strong process stability and the like, and is particularly suitable for industrialized application; and the method can synchronously obtain high-purity sesamin and sesamolin, and achieve the aim of comprehensive utilization.

The invention discloses a method for preparing cycloxylidin, which belongs to the technical field of pesticides preparation. The method comprises the following steps: under nitrogen protection, N-nitroiminoimidazolidine and an organic solvent are added in a reactor, then sodium hydride is added in batches, and the material is heated to the temperature of 50-60 DEG C, chloropropylene oxide is added drop by drop in the reactor, after the reaction product is cooled, chloroform is added, and the product is filtered by diatomite, then evaporative crystallization is carried out, and the crystals can be precipitated, vacuum distillation is carried out on a processed filtrate to obtain a light yellow dense solid, then heat chloroform is used for extraction, and finally heat ethanol or acetone is used for recrystallization to obtain cycloxylidin: 1-(2,3-glycidyl)-N-nitroimidazoline-2-ylamine, wherein the yield is about 83%. The method has the advantages of short reaction time, high yield and green environmental protection, and is more suitable for large-scale industrial production.

Disclosed is a method of making β-polypeptides. The method includes polymerizing β-lactam-containing monomers in the presence of a base initiator and a co-initiator which is not a metal-containing molecule to yield the product β-polypeptides. Specifically disclosed are methods wherein the base initiator is potassium t-butoxide, lithium bis(trimethylsilyl)amide (LiN(TMS)2), potassium bis(trimethyl-silyl)amide, and sodium ethoxide, and the reaction is carried out in a solvent such as chloroform, dichloromethane, dimethylsulfoxide, or tetrahydrofuran.

A thermoplastic composition comprises poly(arylene ether) having an initial intrinsic viscosity greater than 0.25 dl / g as measured in chloroform at 25° C.; a polyolefin having a melt temperature greater than or equal to 120° C. and a melt flow rate of 0.3 to 15; a first block copolymer having a aryl alkylene content greater than or equal to 50 weight percent based on the total weight of the first block copolymer; a second block copolymer having an aryl alkylene content less than 50 weight percent based on the total weight of the second block copolymer; and a flame retardant, wherein the poly(arylene ether) is present in an amount greater than the amount of polyolefin. The composition is useful in the production of covered wire.

A high-hydrophobicity, heat conductivity and adhesivity pigment of interface is prepared by taking methyl chloroform and butanone as medium, liquid-phase treating ordinary carbon black by silicone oil to hydrophobic activate, forming coating into dense methyl surface by polyester modified dimethylsilicone and agitation dispersing by supersonic homogenizer. The formed coating (2) is three-dimensional cross-linking network of cured polyphenylene methyl resin, which contains nanometer carbon black and silicon dioxide, and it forms dense methyl thin layer (3) on coating surface. It can be used to treat heat exchanger surface (1) of indoor apparatus and outer tube fin of household air conditioner. It has good hardness and is non- toxic.

The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg / min; b) a Mw(abs) versus 12 relationship: Mw(abs)<A+B(I2), where A=2.40×105 g / mole, and B=−8.00×103 (g / mole) / (dg / min); and c) a G′ versus 12 relationship: G′>C+D(I2), where C=127.5 Pa, and D=−1.25 Pa / (dg / min). The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg / min; b) a G′ versus 12 relationship: G′>C+D(I2), where C=127.5 Pa, and D=−1.25 Pa / (dg / min) c) a chloroform extractable (Clext) versus G′ relationship: Clext.<E+FG′, where E=0.20 wt %, and F=0.060 wt % / Pa; and d) a “weight fraction (w) of molecular weight greater than 106 g / mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w<I−J(I2), where I=0.080, and J=−4.00×10−3 min / dg.

To provide a laminated product of a layer including a polyvinyl acetal and a layer including a hydrocarbon-based polymer, having excellent adhesion between the layers.A composition including, with respect to 100 parts by mass of a polyvinyl acetal satisfying definition 1 and / or definition 2, 30 to 70 parts by mass of a plasticizer including 0.5 to 100% by mass of a plasticizer containing a polar group and 0 to 99.5% of a plasticizer containing no polar group.Definition 1: When 1 g of a polyvinyl acetal is dissolved in 100 g of methanol, an undissolved content is 2.5 to 90% by mass.Definition 2: When 1 g of a polyvinyl acetal is dissolved in 100 g of chloroform, an undissolved content is 5 to 70% by mass.

The invention provides a method of effectively extracting ganoderma triterpenoids and ganoderan from mythic fungus germ entity by ultrasonic-alcohol extracting, complex enzyme-water extracting integration technology. The method is characterized by comprising the steps of: crashing the mythic fungus germ entity, using the ultrasound assisted alcohol extract (ultrasonic-alcohol extracting) to extract the ganoderma triterpenoids, then using complex enzyme assisted water extracting (complex enzyme-water extracting) to prepare ganoderan, then sponging drying to obtain ganoderma triterpenoids and ganoderan extractive. The solvents used by the method used in the invention is safe, innoxious and avoids the pollution to the environment by using chloroform, methanol and other organic solvents in the traditional method. And the invention has the features of low extraction temperature, simple device, convenient operation, low cost, fast speed, high effects and so on. Using the process to comprehensively extract triterpenoids and ganoderan active substances in glossy ganoderma can significantly increase the total active substance yield than the single extracting method.

The comprehensive process of extracting tea polysaccharide, tea polyphenol, theanine and coffine from tea includes the following steps: water or organic solvent extraction of tea powder under the action of microwave, concentration, precipitation and water dissolving the extract liquid, salt separating to eliminate protein and separation in gel column and drying to obtain tea polysaccharide; chloroform extraction of the raffinate, ethyl acetate extraction of the chloroform raffinate and drying to obtain tea polyphenol; No. 732 cationic exchange resin extraction of the ethyl acetate raffinate, concentration, crystallization and drying to obtain theanine; and crystallizing and drying the chloroform extract liquid to obtain coffine. The present invention has the advantages of short extraction time, high extraction rate, less loss of active matter, etc.

According to embodiments of the present invention, a very thin thermal interface material (TIM) is developed, which is composed of carbon nanotubes, silicon thermal grease, and chloroform. The carbon nanotubes and chloroform comprise the filler and the silicone thermal grease comprises the matrix.

This invention discloses a rapid method of production for fatty acid amide from fatty acid and urea. One example is the preparation of oleylamide from oleic acid and urea. The yields are high and oleylamide is selectively formed by judicious choice of catalyst. The production of fatty acid amide involves heating fatty acid and urea in a microwave oven with the use of Lewis acid catalyst. The product from the reaction is subjected to solvent extraction with chloroform and then followed by purification with n-hexane, ethanol and acetonitrile via recrystalisation method. Such an oleylamide is preferred for application as a mould release agent, slip agent in plastic film production, water repellent and as a raw material for cosmetics production.

The invention provides a kit for separating genome DNA by using magnetic balls and application thereof. The kit comprises magnetic balls, a magnetic frame, a genome DNA extraction reagent (lysing solution, binding solution, rinsing solution A, rinsing solution B and eluent) and specifications; the main steps of extracting the gene DNA comprise cell lysis, nucleic acid absorption, impurity removing and nucleic acid elution. The application of the kit for extracting the genome DNA does not need to use large-toxicity organic solvents of phenol, chloroform and the like, has good safety, and simple, fast and time-saving operation, and simultaneously can extract a plurality of samples. The kit can extract the genome DNA from materials of animals, plants, bacteria, fungus, blood, virus, animal source feed stuff, samples in the forensic medicine and the like, the DNA has high yield and purity, and the obtained genome DNA can be used for experiments such as PCR amplification, gene cloning, construction of genomic library, sequence measurement, molecular hybridization, molecular marking and the like. The kit can be stored at the temperature of 4 DEG C, also can be placed at room temperature, and is convenient to transport.

A two-component developer containing a magenta toner and a magnetic carrier, wherein the magenta toner has the characteristics: (i) when the concentration of the magenta toner in a solution of the magenta toner in chloroform is represented by Cm (mg / ml) and the absorbance of the solution at a wavelength of 538 nm is represented by A538, a relationship between Cm and A538 satisfies the relationship of 2.00<A538 / Cm<6.55; (ii) the lightness L* and chroma C* of the magenta toner determined in a powder state satisfy the relationships of 35≦L*≦45 and 60≦C*≦72; and (iii) the absolute value for the triboelectric charge quantity of the magenta toner measured by a two-component method using the magenta toner and the magnetic carrier is 50 mC / kg or more and 120 mC / kg or less.

The invention relates to a complex extraction process for mulberry leaf flavonoid, polysaccharide and alkaloid through cogeneration, which is characterized by having the following extraction steps: raw material processing, extraction, and separation. The complex extraction process adopting a complex extraction method for the mulberry leaf flavonoid, the polysaccharide and the alkaloid obtained through the cogeneration has the advantages of mild condition, low energy consumption, small environment pollution; macroporous absorbent resin and chloroform used in the complex extraction process can be reused through regeneration; the economic value of the obtained effective ingredients is very high; the mulberry leaf resource is greatly saved; a new utilization approach of the agricultural product mulberry leaf is opened up; and the medicinal utilization value and the economic added value of the mulberry leaf are improved.

A polyphenylene sulfide resin composition which comprises 100 parts by weight of a polyphenylene sulfide resin (A) and, compounded therewith, 1 to 100 parts by weight of glass fibers (B) having a single-fiber diameter of 12 [mu]m or lager and has a crystallization temperature during cooling of 205 DEG C or lower. Also provided is a polyphenylene sulfide resin composition which comprises 100 parts by weight of a polyphenylene sulfide resin (A) and, compounded therewith, 1 to 100 parts by weight of glass fibers (B) having a single-fiber diameter of 10 to 12 [mu]m, excluding 12 [mu]m, has a crystallization temperature during cooling of 205 DEG C or lower and a chloroform-extractable content of 0.5 wt.% or lower, and gives a 2 mm-thick molding which has a transmittance of 15% or higher for laser light having a wavelength of 940 nm and a heat distortion temperature of 230 DEG C or higher under a load of 1.82 MPa.

The invention relates to a solid dispersion and tablets comprising abiraterone acetate, and preparation methods thereof. The solid dispersion is prepared through the steps that: abiraterone acetate and povidone with a weight ratio of 1:0.5-4 are dissolved in chloroform; and reduced-pressure drying is carried out, such that the solid dispersion is obtained. The tablets comprises 1 part of the abiraterone acetate solid dispersion, 2-8 parts of a filling agent, 0.2-0.8 parts of a disintegrating agent, and 0.05-0.1 parts of a lubricant. According to the invention, a micronization technology and a solid dispersion technology are creatively combined, such that abiraterone acetate water solubility is greatly improved. Therefore, abiraterone acetate can be rapidly dissolved in gastrointestinal tract body fluids.

The invention relates to neutral mononuclear copper (I) complexes for emitting light and with a structure according to formula (A) in which: M represents: Cu(I); L∩L represents: a single, negatively charged, bidentate ligand; N∩N represents: a diimine ligand (substituted with R and FG), in particular a substituted 2,2′-bipyridine derivative (bpy) or a substituted 1,10-phenanthroline derivative (phen); R represents: at least one sterically demanding substituent for preventing the planarisation of the complex in the excited state; FG=functional group, and represents: at least one second substituent for increasing solubility in organic solvents. The substituent can also be used for electron transport or alternatively for hole transport, said functional group being bound to the diimine ligands either directly or by means of suitable bridges; and the copper (I) complex: having a ΔE(S1−T1) value of less than 2500 cm−1 between the lowest excited singlet state (S1) and the triplet state (T1) which lies below; having an emission lifespan of at most 20 μs; having an emission quantum yield of greater than 40%, and a solubility of at least 1 g / L in organic solvents, in particular polar organic hydrocarbons such as acetone, methyl ethyl ketone, benzene, toluene, chlorobenzene, dichlorobenzene, dichloromethane, chloroform, dichloroethane, tetrachloroethylene, alcohols, acetonitrile or water.

Compositions and methods for a melt processable semicrystalline poly(aryl ether ketone) incorporating phthalazinone and 4,4′-biphenol as comonomer units are described herein. The polymers are resistant to and insoluble in common organic solvents and liquids as well as in aggressive organic solvents such as chloroform and chlorinated liquids. The polymers are melt processable via techniques such as extrusion, injection molding, and compression molding. The semicrystalline poly(aryl ether ketone) containing phthalazinone comonomer units have properties which make them suitable for manufacturing high temperature resistant molded systems and other articles.

The invention relates to a method and detection kit for the detection of a cannabinoid in a cannabis sample. The method is based on TLC and the method and kit enables everyone to avoid laborious, time consuming and expensive analytical research and determine the cannabinoid content. Good results are obtained with a developing solvent with at least 25 vol. % chloroform and at least 25 vol. % 1,2-dichloro ethane.

A process for producing nanoparticles of paclitaxel and albumin having antitumor properties, by which a mixture obtained by adding paclitaxel in powder form to an aqueous solution of albumin with chloroform is subjected to high pressure homogenization treatment.

The invention provides a medicinal preparation containing exenatide suitable for multi-administration, which contains exenatide, buffer solution, pharmaceutically acceptable accessory and preservative, wherein the buffer solution can keep the pH value of the preparation in an aqueous solution state at 3.0 to 7.0; the accessory may be one or combination of glucose, sucrose, methionine, mannitol or glycine; and the preservative is selected from benzoic acid, sodium benzoate, potassium sorbate or acetone chloroform. The medicinal preparation has the advantages that the stability of physicochemical and biological activities of the exenatide is enhanced by adding a few components capable of being accepted by the human body, and then a preparation suitable for clinical use, particularly injection use is prepared.

The invention belongs to the technical field of chemical industry, and particularly relates to a method for enriching cannabidiol. The method includes steps of S1, drying Cannabis sativa flower and leaf for 0.5-4 hours at 120 DEG C, and smashing until the particle size of the smashed material meets the requirement of over 50 meshes; performing carbon dioxide supercritical extraction for 1-9 hours under the conditions of 30-55 DEG C and 13-30 MPa, and recycling carbon dioxide to obtain initial extractive of Cannabis sativa flower and leaf; S2, dissolving the initial extractive of Cannabis sativa flower and leaf in ethanol or methanol, refining, filtering and removing impurities, distilling and drying the solvent for future use; S3, filling a chromatographic column with the pretreated filler, sampling by a wet method or a dry method, wherein the sampling amount is 3-15 wt%; S4, performing gradient elution or isocratic elution by one or mixture of water, methanol, ethanol, n-butyl alcohol, acetone or chloroform; collecting the dilution section with enriched cannabidiol. The method is simple in technique; content of cannabidiol is improved, and tetrahydrocannabinol content is reduced.

[Object] This invention provides a dispersion containing an insect pest repellent active substance, and an adhesive or bond, ink, resin pellets, a resin product, and a sheet or a film which can exhibit a long term repellent active effect by the particles carrying the dispersion. [Means for achieving the object] The invention also concerns with a natural essential oil having a sanitary pest repellent activity; a dispersion containing, as an active component, at least one of: a first fraction of copaiba oil given by silica gel column chromatography using hexane as an elution solvent, a second fraction given by silica gel column chromatography using a 4:4:1 mixture of hexane / chloroform / ethyl acetate as an elution solvent, and a third fraction given by fractionating the remnant of the second fraction using a 1:1 mixture of ethyl acetate / chloroform as an elution solvent; a dispersion thereof containing a sedimentation inhibitor, particles carrying these dispersions, and a sanitary insect pest repellent active adhesive or bond, ink, resin pellets, resin particles, resin product, sheet or film, and device containing the same.

The invention provides a reversible overcharge protective electrolyte additive for a lithium battery and a preparation method thereof. The invention is characterized in that the additive contains at least one aromatic compound selected from amino-benzene, diphenylamine, triphenylamine, pyrrole, thiophene, phenylene sulfide and benzene, or at least one derivative thereof, the mass percentage of the additive in the electrolyte is in a range from 0.3 percent to 20 percent. An auxiliary solvent made of methylbenzene, dimethylbenzene, carbon tetrachloride or chloroform, in a volume less than 20 percent of the electrolyte, is added into the common electrolyte, to increase the dissolvability of the additive molecule in the electrolyte. Then the electrolyte additive is added. The additive molecule can rapidly undergo polymerization at a certain electric potential and form a polymer bridge between the anode and the cathode, and the electronic conductivity of the polymer bridge can reversibly change between insulation state and conduction state along with the voltage variation of the anode, thereby providing the battery with reversible overcharge protection.

The invention relates to a copper sulfide / mesoporous silicon dioxide core-shell nano material as well as a preparation method and an application thereof. The chemical formula of the core-shell nano material is Cu9S5 / mSiO2-PEG. The preparation method comprises the following steps of: (1) raising the temperature of oleylamine under the protection of nitrogen; adding a mixed solution of copper dibutyldithiocarbamate and the oleylamine and dispersing the mixed solution into chloroform to prepare a D solution; (2) dissolving a surfactant into water; raising the temperature and adding the D solution to prepare an E solution; and (3) taking the E solution and adding ethanol; raising the temperature and adding an NaOH solution; immediately adding TEOS (Tetraethylorthosilicate) and reacting; adding PEG-silane; continually reacting and carrying out hydrothermal reaction; and adding into a scrubbing solution to centrifuge and wash to obtain the product. The copper sulfide / mesoporous silicon dioxide core-shell nano material is applied to near-infrared photo-thermal treatment, anti-cancer drugs, chemotherapy of tumors and infrared heat imaging. The nano material disclosed by the invention has very low cell toxicity and very high blood compatibility; and the united effects of thermal therapy and the chemotherapy are good.

The invention discloses a preparation method of materials which are used for bone plates, bone nails and bone blocks, including the following steps: biomedical fiber, hydroxyapatite, polylactic acid and compatibilizer are arranged at a twin-screw extruder or a torque rheometer for melt blending; or the polylactic acid and the hydroxyapatite which is grafted by using the polylactic acid macromonomer are dissolved in chloroform, the biomedical fiber is added for even dispersion, and the thin film can be obtained by vacuum drying after the volatilization of the chloroform; or the polylactic acid and the biomedical fiber are woven into mesh structure, then the mixed solution of hydroxyapatite powder which is grafted by using the polylactic acid macromonomer and the polylactic acid is added, and the vacuum drying is carried out after the volatilization of the solvent; finally, the materials which are obtained by the method are done with the pressing forming on a flat sulphuration machine or done with the injection forming by using a precise injection machine. The preparation method of the materials which are used for the bone plates, bone nails and bone blocks of the invention has strong practicality, easy industrial production and can significantly improve the mechanical properties of the bone repair materials.

The invention discloses a super-hydrophobic / super-oleophilicity copper wire mesh for oil and water separation and a preparation method and application thereof. The preparation method comprises the steps that firstly, the copper wire mesh is ultrasonically cleaned through diluted hydrochloric acid, absolute ethyl alcohol and deionized water respectively and dried through nitrogen; chemical deposition liquid of copper sulfate and a sodium thiosulfate solution is prepared; the cleaned copper wire mesh is placed into the chemical deposition liquid for a deposition reaction; the copper wire mesh is taken out and cleaned through the deionized water and dried in the air; the dried copper wire mesh is placed in a solution of a curing agent and polydimethylsiloxane with hydroxyl sealed end, and the copper wire mesh is taken out and heated. No expensive fluorine-containing substance is needed, the copper wire mesh has the advantages that the preparation technology is simple, reaction conditions are mild, no strong acidity or strong basicity or corrosivity reagents are needed, and no harm is caused to the environment, separation of oily wastewater can be achieved rapidly and efficiently, the good separation effect on chloroform, normal hexane, petroleum ether, plant oil, diesel oil, aviation kerosene and the like is achieved, and separation of strong acidity, strong basicity and high salinity oily wastewater can be achieved.