30results about How to "Easy to form industrial production" patented technology

A natural non-toxic adhesive for wood used as building material or decorative material contains main material which is prepared from corn or cassava starch, water and assistant through emulsifying, oxidizing, etherifying, esterifying and cross-linking, polyvinyl alcohol as intensifer, solution of sodium polyacrylate as stabilizer, assistant and water. Its advantages are no poison and irritation, good water-proof nature, high drying speed and adhesion.

This invention discloses a method for using the multipolymer of PVDF or VDF with hexafluoropropylene as the host and utilizing phase separation, polymer alloy and cross-link technology to prepare a new type of porous isolation membrane and its manufacturing method. The thickness of the isolation membrane is 15-50 mum with the advantage of high strength, uniform slots, high conductivity, which is well immersed into the electrolyte and not necessary to be extracted.

The invention provides a preparation method of a micro-carrier for cell culture. The preparation method includes the following steps that 1, a gelatinized starch alkali solution is prepared firstly; 2, an oil phase and a water phase are mixed for pelleting; 3, crossing-linking and curing are conducted at normal temperature for pelletizing; 4, oil-out cleaning is conducted; 5, DEAE coupling is conducted; 6, washing is conducted. The invention further provides the micro-carrier prepared through the method and an application of the micro-carrier to cell culture. Common edible starch is adopted, the raw material is free of toxicity and wide in source, and the whole preparation process is simple and feasible; the method is controllable, cost is low, and industrial production is easy. By means of the micro-carrier, suspension culture can be conducted in a stirring state, the micro-carrier is suitable for large-scale suspension culture of multiple anchorage-dependent cells, and the micro-carrier can be widely applied to the field of biological pharmacy.

The invention discloses soft ferritic stainless steel and a method for manufacturing the same, wherein the mass percentage compositions of the stainless steel are: 0.01 to 0.03 percent by mass of C, 0.2 to 0.4 percent by mass of Mn, 0.2 to 0.4 percent by mass of Si, 15 to 17 percent of Cr, less than or equal to 0.025 percent of N, less than or equal to 0.020 percent of P, less than or equal to 0.0030 percent of S and the balance Fe and unavoidable impurities; the method comprises the following: 1) a step of smelting and continuous casting, in which molten iron and alloy material are subject to treatment by an AOD furnace and a VOD furnace, making the content of each composition with in the required range and then to continuous casting to be formed into blanks; 2) a step of heating plate blanks, in which the plate blanks are heated to between 1050 and 1100 DEG C for no less than 180 minutes; 3) a step of hot rolling, in which the finishing temperature is between 860 and 880 DEG C, the coiling temperature is 750+-20 DEG C; 4) a step of heat treatment after rolling, in which the annealing temperature is between 860 and 900 DEG C, with acid cleaning; 5) a step of cold rolling, in which the total draft is more than or equal to 70 percent; 6) a step of heat treatment after rolling, in where the annealing temperature is between 880 and 920 DEG C. The stainless steel manufactured by the invention is low in cost, moderate in flexibility and has certain anti-corrosion and wear-resistance properties.

The present invention provides a preparation method for black allium chinensis vinegar prepared by blending brewed fermented black allium chinensis concentrated juice and ordinary vinegar. The black allium chinensis vinegar is obtained by grinding allium chinensis into pulp for fermentation, then concentrating into a concentrated black allium chinensis juice, and blending with the existing vinegar with a blending ratio of fermented black allium chinensis juice to vinegar being 1:5. The obtained product not only retains physiological functions of the allium chinensis, but also adds a flavor of vinegar, enabling people to get beneficial health effects during the process of enjoying seasoning. The product of the invention is rich in flavor and good in taste, and enriches range of applications of the allium chinensis in diet fields and meets people's gourmet needs.

The invention provides a pharmaceutical composition and a preparation method thereof, specifically, an ophthalmic sustained-release preparation containing ganciclovir and a preparation method thereof. It is an ophthalmic sustained-release preparation made from ganciclovir, carbomer, hydroxypropylmethylcellulose and commonly used pharmaceutical ophthalmic preparation auxiliary materials. The eye drops prepared by the in-situ gelation technology of the present invention have stable quality, less content of main drug ganciclovir, can maintain effective drug concentration for a long time, improve bioavailability, and reduce eye irritation. The drug administration frequency is reduced, the use is convenient, the preparation process is highly controllable, the industrial production capacity is easy to form, the production cost is reduced, and a new drug selection is provided for clinical use.

The invention provides a preparation method of isovanillin, and belongs to the technical field of isovanillin production. The preparation method of isovanillin comprises the following steps: dimethylsulfate and an ethyl vanillin solution are subjected to reaction in an alkaline environment at temperature of 5-40 DEG C for 4-8h, filtering is performed, filter residues are taken, and an intermediate is obtained; the intermediate and concentrated sulfuric acid are subjected to reaction for 2-7 hours in an inert gas atmosphere at temperature of 40-70 DEG C and under negative pressure. According to the preparation method, ethyl vanillin, dimethyl sulfate, concentrated sulfuric acid and the like are used as raw materials and are easily available and low in cost, the process is simple to controland easy to operate, industrial production is easy to realize, the yield is high, little waste water is produced, and the method is environmentally friendly.

The invention discloses a medicine for treating scalds. The medicine comprises the following components in parts by weight: 1-5 parts by weight of rheum officinale, 7-11 parts by weight of sanguisorbaofficinalis, 5-9 parts by weight of cistanche deserticola, 4-6 parts by weight of Suberect Spatholobus Stem, 10-20 parts by weight of lumbricus, 12-16 parts by weight of achyranthis bidentatae, 3-5 parts by weight of angelica sinensis, 5-7 parts by weight of bulbus fritillariae cirrhosae, 6-8 parts by weight of cassia twig, 10-15 parts by weight of ephedra, 4-8 parts by weight of dark plum, 14-18parts by weight of raw radix aconiti and 15-19 parts by weight of radix aconiti. The traditional Chinese medicine components in the medicine supplement each other, clear away heat and toxic materials, have a good effect on I-degree and II-degree scalds or burns, are good in curative effect, take effect quickly, and can stop bleeding and relieve pain, and scars are not likely to be left after wounds are healed. The use range is wide, carrying is convenient, the price is low, and popularization is facilitated.

The invention discloses a water-based conductive graphite emulsion for an alkaline zinc-manganese battery and a preparation method of the water-based conductive graphite emulsion, and relates to the technical field of zinc-manganese batteries, wherein the water-based conductive graphite emulsion is prepared by mixing water as a solvent, graphite and carbon black as main conductive base materials,and water-based resin as a bonding base material and auxiliary agents for supplementing; the emulsion comprises the mixed components by weight: 10-40 parts of a water-based resin solution, 0.3-1 partof sodium carboxymethyl cellulose, 1-3 parts of a wetting dispersant, 0.1-2 parts of a leveling agent, 1-8 parts of a coalescing agent, 10-40 parts of graphite and carbon black, 1-3 parts of an anti-flash rust agent, 0.1-2 parts of an antifoaming agent, 0.1-1 part of ammonia water, 30-80 parts of water and 1-3 parts of propylene glycol monomethyl ether. According to the water-based conductive graphite emulsion for the alkaline zinc-manganese battery, the problems that an existing solvent conductive graphite emulsion is severe in production field environment, insufficient ability of a dry filmto conduct electricity and poor in corrosion resistance are solved.