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 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.

The invention discloses a high-dissolubility children's calcium carbonate D3 granule. The high-dissolubility children's calcium carbonate D3 granule comprises, by weight, 12,000-14,000 parts of calcium carbonate, 0.03-0.1 part of vitamin D3, 1,800-2,100 parts of glucose, 2,300-3,100 parts of maltodextrin, 150-300 parts of sodium citrate and 95-108 parts of polyvinylpyrrolidone K30. The invention further discloses a preparation method of the high-dissolubility children's calcium carbonate D3 granule. The high-dissolubility children's calcium carbonate D3 granule and the preparation method thereof have the advantages that since granularity of fine powder and dosage of raw and minor ingredients and a preparation technology are controlled effectively, granule uniformity is improved, and the high-dissolubility children's calcium carbonate D3 granule is higher in dissolubility, vitamin D3 content and administration compliance and beneficial to calcium absorption of human bodies; the preparation method is simple, convenient, feasible and suitable for large-scale production.

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 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 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.