161results about How to "The preparation process is feasible" patented technology

An oxiracetam injection is prepared from oxiracetam, gluclose (or sodium chloride) for injection and water for injection through proportioning, dissolving the glucose or sodium chloride for injection in the water for injection, adding activated carbon, heating, holding the temp. filtering, adding oxiracetam to the filtrate, stirring for dissolving, adding the water for injection, regulating pH value, fine filtering, bottling and sterilizing at 105-126.5 deg.C.

The invention provides the process for preparing Ornidazole intra-vascular preparations in the dosage forms of freeze-dried injections, which comprises, (1) weighing prescription amount of Ornidazole and adjuvant, charging water for injection, stirring and dissolving, (2) adjusting pH to 3.5-6.0 with acids, charging 35-55 deg C. water for injection to full amount, charging 0.05-0.2% of activated charcoal for injection, homogenizing, removing charcoal and carrying out refined filtration, (3 loading, (4) making preparations through freeze drying.

The present invention belongs to the field of polymer material technology, and is especially preparation process of biodegradable polylactic acid based polynary block polymer. The preparation process includes the first polycondensation of lactic acid, lactic acid and small molecular dibasic alcohol, or lactic acid and small molecular dibasic carboxylic acid to obtain lactic acid prepolymer in certain molecular weight; and the subsequent adding ester oligomer and chain expander to react under N2 atmosphere at pressure below 60 Pa and temperature of 150-230 deg.c for 10-45 min to obtain the biodegradable resin with high molecular weight. The biodegradable resin has flexibility and heat resistance higher than that of lactic acid homopolymer, adjustable degradation speed, simple preparation process and wide application, and the preparation process is easy use in industrial production.

The invention discloses a double-layer anti-reflecting film of a crystal silicon solar cell and a preparation method thereof. The double-layer anti-reflecting film is characterized in that the film consists of a loose layer TiO2 film, a compact layer TiO2 film and a SiO2 passivation layer in turn, wherein the SiO2 passivation layer is positioned between the compact layer TiO2 film and a silicon-based substrate. The preparation method comprises the following steps: depositing the compact layer TiO2 film and the loose layer TiO2 film on the right surface of the silicon-based substrate; and after electrode silver paste is printed, through conventional sintering at the temperature between 400 and 900 DEG C, forming the SiO2 passivation layer at an interface of the silicon-based substrate and the compact TiO2. A TiO2 / TiO2, quasi double-layer anti-reflecting film of the invention is finished once by changing the depositing condition, is optimized on the process and equipment, and has better anti-reflecting effect compared with a single-layer anti-reflecting film.

The invention discloses a manufacturing method of a hard-base soft-structure internal combustion engine connecting rod. The method includes the following steps of forging of a blank, coarse grinding of end faces, boring, rough boring of a large-head hole and a small-head hole, chamfering of the large-head hole, threaded hole machining, fracture splitting of a large-head end and assembling, accurate grinding of the end faces, semi-fine boring of the large-head hole and the small-head hole, tegular groove milling and oil groove boring, fine boring of the large-head hole and the small-head hole, flat grinding of the large-head end, parkerizing of the small-head hole, and cover removing, cleaning and assembling. The connecting rod comprises the large-head end, a rod body and a small-head end, the large-head end and the small-head end are arranged at two ends of the rod body respectively, the connecting rod is of an integral structure, and a connecting rod cover is arranged at the large-head end of the connecting rod. The manufacturing method is simple in principle, a manufacturing technique of a traditional internal combustion engine connecting rod is improved to provide a feasible and reliable manufacturing technique for the hard-base soft-structure internal combustion engine connecting rod, and particularly precision and performance of a soft structure of the small-head end of the connecting rod are guaranteed. Meanwhile, the method has the advantages of simple technique and low manufacturing cost, and is convenient for batch production.

Disclosed is a production method of an aluminum alloy core cable. The aluminum alloy core cable comprises an aluminum alloy core material, a nickel alloy layer outside the core material and an insulating layer at the outermost layer. The tensile strength of the aluminum alloy core cable produced according to the production method is greater than 15 kg / mm<2>, the yield strength is greater than 13 kg / mm<2>, the stretching rate is 8%, and the electric conductivity is greater than 67%IACS.

The invention discloses a medical grade gas-permeable membrane special material. The medical grade gas-permeable membrane special material is prepared from the following components in parts by weight: 35-75 parts of nanoscale activated composite inorganic mineral powder, 2-6 parts of nano rutile type titanium dioxide, 0.2-2.0 parts of fluorine-containing polymer, 38-78 parts of gas-permeable membrane special resin, 0.5-1.2 parts of antioxidant and 1-2 parts of specially treated aloe juice extract powder or arbutin extract powder, wherein the nanoscale activated composite inorganic mineral powder comprises nanoscale ground calcium carbonate powder, nanoscale talcum powder and a surface active agent. A preparation method of the medical grade gas-permeable membrane special material comprises the following steps: firstly carrying out high-speed mixing on the nanoscale activated composite inorganic mineral powder for removing water; secondly, preparing a gas permeable membrane special material mixture; and thirdly, preparing a gas permeable membrane special material finished product. The medical grade gas-permeable membrane special material has the advantages that raw materials are simple, source of the raw materials is rich, a technology is simplified and cost is low.

The invention relates to the field of traditional Chinese medicine preparation and relates to a preparation method of a chimonanthus inhibited acetylcholinesterase active part and application thereof. The preparation method comprises the following steps of: ethanol lixiviation, low-polarity solvent extraction, acid-solution and alkali-isolation chloroform extraction or alkali-solution and acid-isolation, centrifugation and ethyl acetate extraction. The extracted active part includes three categories of substances, namely alkaloids, flavonoids and coumarins respectively. The active part has relatively strong inhabitation effect on the activity of acetylcholinesterase and has a wide application range in preparing medicaments for preventing and treating related symptoms or diseases caused by acetylcholine deletion, particularly the medicaments for preventing and treating senile dementia.

The invention discloses a Lansoprazole sodium suspension preparation for injection. The suspension preparation is characterized by containing Lansoprazole sodium, an emulsifier, a carrier material, an antioxidant and an excipient, wherein the emulsifier is a compound emulsifier containing two or more than two of poloxamer 188, sorbitan fatty acid 60, polysorbate 80, glyceryl monostearate and glycerin monostearate. Preferably, the Lansoprazole sodium suspension preparation contains 4 parts of Lansoprazole sodium, 3-5 parts of emulsifier, 2-4 parts of carrier material, 1-2 parts of antioxidant and 3-4 parts of excipient, wherein the weight ratio of the poloxamer 188 to the sorbitan fatty acid 60, the polysorbate 80, the glyceryl monostearate or the glycerin monostearate is 4-2:1. The Lansoprazole sodium suspension preparation for injection prepared by the invention has low-content harmful substances and good stability. The new application of the preparation in the initial treatment of erosive esophagitis patients which can not accept oral drug treatment has the satisfactory technical effect.

the invention discloses a preparing method of biological full-decomposing copolymer based on hydroxyl terminated PE low-polymer in the macromolecular material technological domain, which comprises the following steps: placing refined purified cyclic lactone compound, hydroxyl terminated PE low-polymer and catalyst in the vacuum autoclave; aerating N2; extracting into vacuum; repeating these operations; reducing system pressure below 60Pa; reacting at 130-140 deg.c for 10-15 h; discharging to obtain macromolecular and narrow distributed product.

The invention relates to a hardening, anti-ultraviolet and anti-glare multifunctional paint for a polarizer which is designed for solving the technical problem of poor effect of existing like products used in polarized lenses. The paint is prepared by the following steps of: performing a cohydrolysis reaction of a plurality of alkoxysilanes and deionized water under the action of acid catalyst and at a certain temperature to obtain a mixture; adding organosilicon modified acrylic acid or epoxy resin into the mixture to remove a solvent while performing condensation polymerization; adding a component solvent which takes propylene glycol methyl ether as the main component, proper amount of curing agent and polyether modified siloxanes to prepare the organosilicon hardening matrix component; and adding nano-titanium oxide solution which serves as an ultraviolet absorbent into the organosilicon hardening matrix component and adding indium oxide semiconductor nano-particles which have a infrared absorption function, fluorine-contained acrylic acid copolymer, the catalyst and the like into the mixture to obtain the paint. The paint is coated on a polarizer substrate material, has multiple functions such as hardening, ultraviolet protection, glare elimination, water vapor resistance, infrared absorption and the like, and is suitable for sunglasses and safety goggles.

The invention relates to a manufacturing technology of a stainless steel box of a dish-washing machine. The manufacturing technology is designed to solve the problems that in existing similar products, the secondary stretching depth of water tanks is not large enough, and the overall machining process and procedure design is poor. The box is formed by machining a steel plate block through two times of stamping and stretching and one time of annealing. The manufacturing technology specifically comprises the following steps that a stainless steel coil steel plate is adopted as the steel plate block, and a blank of the steel plate block is cut by a plate shearing machine; the cut blank is put into a first stretching mold, and a trough obtained after stretching molding is put into an annealing furnace; after annealing finishes and the trough is cooled, the trough is put into a second stretching mold, and stretching molding is carried out for the second time; and finally, edge cutting, grinding, punching, strip welding, polishing, sand blasting, re-punching and bin drying are carried out, the finished trough and accessories are packaged and packed, and the box is obtained. The manufacturing technology can also be used for manufacturing the stainless steel box of the dish-washing machine with a water trough and is suitable for being used for machining the water trough of the stainless steel box of the dish-washing machine and the like.

The invention relates to a III-V family nitride semiconductor epitaxial structure comprising a (1) substrate; (2) an epitaxial buffer layer; (3) an epitaxial transition layer; and (4) an epitaxial effective layer. The epitaxial buffer layer is provided with an upper surface and a lower surface which is contacted with the substrate. The epitaxial transition layer covers the epitaxial buffer layer, and a microscopic hole structure is arranged at the interface of the epitaxial transition layer and the epitaxial buffer layer. The microscopic holes are periodically or non-periodically arranged so that the interface of the epitaxial transition layer and the epitaxial buffer layer is enabled to be partially connected, and the connected parts and the hole parts appear in a spacing way at the interface. The epitaxial transition layer is provided with a flat upper surface. The epitaxial effective layer is arranged at the upper surface of the epitaxial transition layer. The epitaxial effective layer comprises an n-type epitaxial layer, a luminescent layer and a p-type epitaxial layer which are arranged from the bottom to the top. The invention also provides a manufacturing method of the epitaxial structure, a device comprising the epitaxial structure and a manufacturing method thereof.

The invention relates to a durable polysilsesquioxane nano hybrid super-hydrophobic leather coating layer and a preparation method thereof. The method comprises the steps: firstly preparing an anionic narrow-dispersion polycarboxyl / methyl silsesquioxane (PCMSQ) nanosphere hybrid emulsion by emulsion polymerization, and then with epoxy silane, the PCMSQ emulsion and hydrophobic amino silicone as construction elements, carrying out layer-by-layer self-assembly on the surface of leather to construct the durable wearproof super-hydrophobic hybrid coating layer by using strong electrostatic interaction between -COO- of the surface of the PCMSQ and protonated -NH3<+> of amino silicone. At the same time, the anti-friction performance of the super-hydrophobic hybrid coating layer is improved by the effect of epoxy silane and the skin fiber matrix. The preparation method has the advantages of easily obtained used raw materials, simple and feasible preparation process, green environmental protection, and preparation of membranes in a large area; the prepared super-hydrophobic coating layer not only can endow the leather matrix with excellent super-hydrophobic properties but also can have good anti-friction performance.

The invention relates to a waste fiber-fabric-inorganic particle four-layer casting composite stab-resistant sheet, a preparation method and applications thereof, wherein an inorganic particle-waste fiber cut section-fabric mixed and spaced four-layer structure is subjected to melting die-casting to form the composite stab-resistant sheet having a five-layer structure of a compact collision barrier layer, a gradient stacking layer, a fiber melt layer, a high-density stacking layer and a fabric melt layer. The preparation method comprises: mixing inorganic particles and fiber cut sections, paving, placing a fabric sheet, spreading inorganic particles on the fabric sheet, and covering with a fabric sheet, wherein the melting point of the fiber cut section is lower than the melting point of the fabric sheet, such that the fiber cut sections are molten in advance to settle the inorganic particles so as to obtain a gradient structure; and pressing the inorganic particles on the upper layerinto the fabric melt to form the composite stab-resistant sheet having the five-layer structure. According to the present invention, the prepared product has the high-efficiency collision barrier layer and the tough anti-brittle layer, and can be used for the individual protection dressing puncture-proof base materials for terrorism and riot prevention, fire protection, explosion prevention, earthquake search and rescue and national defense military.

The invention discloses a biodegradable emamectin benzoate microsphere and a preparation method thereof. Emamectin benzoate serves as an active substance namely a core material, and a biodegradable material serves as a balling material namely a wall material. The biodegradable emamectin benzoate microsphere has the advantages of safety, low toxicity, high efficiency, long lasting period, high stability and the like. Compared with a conventional common high-polymer wall material microsphere, the biodegradable emamectin benzoate microsphere has the advantages of high environment compatibility and good material mechanics property; meanwhile, by changing a ratio of polylactic acid to polypropylene carbonate in the wall material, the slow release performance and the particle size of the microsphere can be regulated and controlled, the drug release performance is improved, the environmental friendliness is improved, the production cost is reduced, and requirements on pollution-free agricultural production are met.

The invention discloses anti-cracking plastering mortar and a preparation method thereof, wherein the anti-cracking plastering mortar comprises an anti-cracking agent and plastering mortar; the mass of the anti-cracking agent is 1%-10% of the mass of the plastering mortar; the anti-cracking agent comprises 60%-95% of polymer composite fibers, 5%-10% of a surfactant and the balance of filler; the polymer composite fiber is formed by processing a resin-based composite material of a fiber reinforcement, and the polymer composite fiber is a composite fiber of which the surface of the fiber reinforcement is coated with at least one layer of resin. The anti-cracking plastering mortar disclosed by the invention is good in anti-cracking performance and good in durability.

The invention provides smoking cessation tea and a preparation method thereof. Protospecies liu pao tea and five purely natural Chinese herbal medicines without side effect are adopted. The smoking cessation tea comprises the following components in parts by weight: 30-50 parts of liu pao tea, 8-12 parts of malt, 5-10 parts of pericarpium citri reticulatae, 10-13 parts of gypsum, 5-8 parts of elecampane and 10-15 parts of liquorice root. The components are prepared into a tea product with a conventional processing method. The smoking cessation tea has the function of removing body toxin, enhancing constitution and reducing dependence on smoke according to the mechanism of smoking addiction by the treatment principle of clearing heat, expelling toxin and righting qi in the traditional Chinese medicine. After a smoking quitter quits smoke, the tea can firstly decompose nicotine hormone in blood quickly to quicken blood circulation and excretion and get rid of psychological addiction troubles; then, endorphin (EP) which stops secreting in the body of the smoking quitter because of smoking is aroused to secrete again; and dependence on cigarettes can be fundamentally solved no matter how deep the smoking addiction degree is and how long the smoking year is so that the smoking addiction is easily quitted.

Thermoplastic polyurethanes (TPU) based on NDI are prepared by reacting specific, storage-stable NDI-based NCO prepolymers with chain extenders and granulating the largely reacted and cooled reaction melt. The TPU granules can then be processed to form shaped articles.

A porous scaffold with complex contour similar to the damaged tissue or organ is prepared from the biodegradable and biocompatible high-molecular material through designing the both flexible and rigid composite mould and the solvent-based cold press / particle infusion. Its advantages are simple and feasible preparing process and high porosity (more than 90%).

A high-molecular porous scaffold for tissue engineering is prepared from biodegradable and biocompatible high-molecular material through designing flexibility-rigidity combined mould and hot press / particle infusion. Said process scaffold has complex shape similar to the damage tissue or organ and communicated porous structure. Its porosity is more than 90%.

the invention discloses a preparing method of biological full-degraded linear polyester macromolecule material, which is characterized by the following: polycondensing the refined pure-lactic acid under catalyst to obtain certain molecular weight of prepolymer; adding hydroxyl alkanoate or hydroxyl alkanoate derivant and catalyst; reacting continually under vacuum condition; obtaining degraded resin with macromolecular quantity; displaying better flexibility than even-polymer of lactic acid.

The invention discloses a buccal tablet capable of clearing heat from the pharynx and throat and performing anti-inflammation and throat protection and a preparation method thereof. The buccal tablet is prepared through processing of raw mint, balloonflower, licorice root, sterculia lychnophora, citron, sweet tea and honey; and all the medicinal materials are combined to perform synergistic action, thereby achieving the effect of effectively clearing away heat and toxicity, moistening the lung, resolving the phlegm and relieving the cough altogether. Throughout all the prescriptions, the buccal tablet capable of clearing heat from the pharynx and throat and performing anti-inflammation and throat protection has the functions of being pungent in flavor and cool in property and dispelling wind and heat from the body, and has the effects of moistening the lung, resolving the phlegm and relieving sore throat, so that the buccal tablet is an effective prescription for treating wind and heat and pharyngalgia. Due to the advantages of the medicinal materials, the buccal tablet capable of clearing heat from the pharynx and throat and performing anti-inflammation has the characteristics of favorable treatment effect, excellent mouthfeel and the like; and meanwhile, the buccal tablet can be taken in time conveniently in comparison with other medicament forms, and is accepted by more and more patients with pharyngitis. Besides, the preparation process is scientific, feasible and high in operability; and the production cost is greatly reduced, thereby bringing considerable economic benefits for production enterprises.

The invention discloses an industrial production method of preparing corn peptide powder by means of bionic enzymatic hydrolysis from corn proteins. The method is characterized by comprising the step of performing bionic enzymatic hydrolysis, high-speed centrifugation, ultrafiltration, electrodialysis, concentration and drying to obtain the corn peptide powder by taking the corn proteins as a raw material. The total protein content of the corn peptide powder is 90% above, the content of small molecule peptide which can be dissolved by trichloroacetic acid is 85% above, and the corn peptide powder has the advantages of meeting the selecting mechanism of human absorption, being free of toxic and side effects and low in cost and the like, and can be applied to food, health food and drugs.

The invention discloses surface chemical modified mica iron oxide powder and a preparation method thereof. The preparation method comprises the following steps: 1) preparing a mixed monomer of acrylicacid and phosphate vinegar, and preparing an initiator aqueous solution; 2) adding 30cy0 of mixed monomer, 40cy0 of initiator water solution and deionized water into a reaction kettle, and carrying out solution polymerization reaction; 3) synchronously and slowly dropwise adding the rest 70cy0 of mixed monomer and 60% of the initiator water solution into the reaction kettle, maintaining the temperature of the reactant, and continuously carrying out solution polymerization reaction; 4) after dropwise adding the mixed monomer and the initiator water solution, adding aminophenol into the reaction kettle, maintaining the temperature of the reactant, and carrying out a condensation reaction; 5) cooling, filtering and discharging the product to obtain a chemical modifier, 6) adding the chemicalmodifier and mica iron oxide powder into a reaction kettle with stirring at the same time, heating the raw materials to carry out surface modification chemical reaction, and 7) carrying out operations including water washing, filtering dehydration, low-temperature drying, screening and the like on the slurry to obtain the surface chemical modified mica iron oxide powder.

The purpose of the present invention is to provide a method for improving the encapsulation yield of the water-soluble drug microsphere drug-carrying system. Based on the existing double-emulsion method (W / O / W), the present invention adds gelatin with a mass fraction of 15% to 30% to the inner water-phase drug-containing solution forming the double-emulsion. The invention improves the encapsulation yield of the water-soluble drug microsphere drug-carrying system.

The invention discloses an AlGaN-PZT focal plane detector, which adopts a structure in which two material with different response wave bands are stacked and integrated in the same direction. By using that layers in a multi-layer film structure for optical absorption of different photon energies are different, the organic combination of the absorption of wide wave band from infrared light to ultraviolet light with high resolution is realized. As an ultraviolet absorption layer, an epitaxial layer absorbs the incident photon of which the energy is more than a band gap width, and the incident photon is transformed to photocurrent; at the same time, as a window layer, the epitaxial layer allows the incident photons of which the energy is less than the band gap width to transmit. The transmitted photons are absorbed and transformed into heat by LaNiO3 and the heat is transmitted to PZT material to obtain optical signals by utilizing pyroelectric property. The invention has the advantages that the invention is applicable to the application of the focal plane in large scale and is able to be operated under room temperature.