5702 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.

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 thermoplastic resin composition of the present invention is obtained by graft polymerizing a monomer that composes a polymer that is compatible with or has affinity for polycarbonate resin in the presence of a polymer that is incompatible with polycarbonate resin; wherein, the weight average molecular weight of a soluble component that dissolves in chloroform is 10,000 to 100,000. In the case of using this thermoplastic resin composition in an engineering plastic, fluidity can be improved without impairing the characteristics of the engineering plastic. The engineering plastic composition of the present invention is preferably used in the field of housings and various parts of OA equipment, telecommunications equipment and home appliances such as photocopiers, facsimiles, televisions, radios, tape recorders, video decks, personal computers, printers, telephones, information terminals, refrigerators and microwave ovens, as well as in other fields such as automotive parts.

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 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.

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.

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.

[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.

Novel florfenicol compounds having the chemical structure:

• • or a pharmaceutically-acceptable salt thereof or a solvate thereof,or prodrug thereof, wherein R¹ is CHCl₂, CHClF, CHF₂, CHBrCl, CH₃, CH₂N₃, CH₂CN, CH(R²)NH₂ or CH X¹X²; where R² is H, CH₃ or CH₂OH, and X¹ and X² are independently selected halogens; and R³ is CH₂Cl, CH₂F, CHF₂, CHCl₂ or CH₂OH are disclosed. The compounds are useful for the treatment and/or prevention of bacterial infections in a broad range of patients such as, without limitation, birds, fish, shellfish and mammals.