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60results about How to "Reduce residue" patented technology

Method for preparing film agent by using chitosan and Arabic gum as matrix

The invention provides a method for preparing a film agent by using chitosan and Arabic gum as matrix, and relates to a preparation method of the film agent. With the adoption of the method for preparing the film agent by using the chitosan and the Arabic gum as the matrix, the problem that the conventional film agent is poor in absorption effect, or has high drug-release incomplete residual amount, or has irritation in long-term use can be solved. The preparation method provided by the invention comprises the steps of I, preparing a chitosan solution; II, preparing an Arabic gum solution; and III, mixing the chitosan solution prepared by the step I with the Arabic gum solution prepared by the step II, so as to obtain a mixed solution; heating the mixed solution; stirring after adding drugs, a plasticizer and an absorption promoter, so as to obtain a mixture; and then preparing the film agent by using the mixture through a film coating machine. The film agent is a film agent using the chitosan and the Arabic gum as the matrix. The film agent prepared by the invention has the advantages of low drug residual amount and slight irritation; the biological use rate is improved; the simple preparation process and the temperate conditions can be realized; and the desired raw auxiliary materials are cheap and easy to get. The method for preparing the film agent by using the chitosan and the Arabic gum as the matrix provided by the invention is applied to the field of preparing a pharmaceutical preparation.
Owner:HEILONGJIANG UNIV

Uniform cooling device for steel plates with curved water outlets

The invention discloses a steel plate uniform-cooling device with water outlets arranged in a shape of curve, which comprises an upper header device. A plurality of lines of water outlets which have a jetting direction vertical with the direction of a steel plate and a jetting range which covers the width of the steel plate are arranged on the upper header device; the plurality of the lines of the water outlets are arranged in parallel in a convey direction of the steel plate; projections of the water outlets on the steel plate are arranged in the shape of curve; an opening direction of the curve is as same as the convey direction of the steel plate. The manner of the water outlets of an upper header is changed from a linear manner to a curve manner, so that used cooling water absorbing acertain amount of heat fast departs the upper surface of the steel plate along a tangential direction of a back line of cooling water wall. Therefore, the residue of the cooling water on the edges isreduced; meanwhile, the device provided by the invention improves longitudinal and transverse cooling effects of the steel plate due to being good for more complete contact between fresh cooling water in the back line and the steel plate. The device provided by the invention has advantages of high transverse cooling uniformity, fast longitudinal cooling speed and less water consumption.
Owner:CISDI ENG CO LTD

Novel shell calcium oxide produced by microwave

InactiveCN104760981AReduce residueEffectively remove pesticide residues on the surfaceChemical industryCalcium/strontium/barium oxides/hydroxidesCooking & bakingMicrowave
The invention discloses a novel shell calcium oxide produced by microwave. The raw materials of the shell calcium oxide are one or more of an oyster shell, a scallo, a pearly shell or a fan shell. The production method comprises the following steps: adding sand and water into the shell raw material in arbitrary proportion, mixing and performing abrasive cleaning, drying and smashing till the grain diameter of 0.5-3cm; and performing microwave drying through three stages, wherein the microwave intensities are in turn 100 kilowatt, 200 kilowatt and 250 kilowatt, the microwave temperatures are in turn 600 DEG C, 1200 DEG C and 1400 DEG C, and the baking times are in turn 1h, 3h and 2h; performing high micro-grinding on the dried materials till the grain diameter is 4-30 um to obtain the product. The novel microwave produced shell calcium oxide is simple in manufacture process, environmentally friendly and energy-saving, short in burning time, high in production efficiency, high in product purity and good in quality, avoids the contact with the other fuels such as coal, reduces the residues of the heavy metal and the sulfide in the product, is widely used for food adding and subsidiary agricultural product washing, and can effectively remove the pesticide residue on the surface of the subsidiary agricultural product.
Owner:赵扬合

Production process of label sticker which is resistant to high temperature and high in viscosity

The invention provides a production process of a label sticker which is resistant to high temperature and high in viscosity and relates to the technical field of label stickers. The production processincludes the following steps of (1) preparing activated polyether polyol; (2) preparing a polyurethane emulsion, adding the polyurethane emulsion, isobutyl acrylate, modified nanometer silicon dioxide, a crosslinking agent and azodiisobutyronitrile into a reaction still, and raising the temperature to 80-85 DEG C for a reaction for 5-8 hours to obtain a copolymer, namely an emulsion-type pressure-sensitive adhesive; (3) on a coating machine, utilizing a coating cutter to uniformly coating the back of copperplate surface paper with the copolymer, namely the emulsion-type pressure-sensitive adhesive, bonding the copperplate surface paper to Glassine backing paper to obtain a label sticker semi-finished product, making the label stick semi-finished product pass through a drying channel whichis 80-120 cm long at the speed of 20-30 cm/min under the temperature of 70-75 DEG C, and then obtaining a label sticker finished product, wherein the thickness of an adhesive film is 0.04-0.15 mm. The label sticker applying the copolymer, namely the emulsion-type pressure-sensitive adhesive, is resistant to high temperature, high in viscosity, resistant to a damp and hot environment and long in bonding time.
Owner:杭州大唐印刷有限公司

Water dispersible granule for prevention and control of molluscs and preparation method of water dispersible granule

The invention discloses a water dispersible granule for prevention and control of molluscs and a preparation method of the water dispersible granule. The water dispersible granule comprises the following ingredients by mass percentage: 0-85% of metaldehyde, 0-85% of niclosamide ethanolamine salt, 1-3% of wetting agent, 5-20% of emulsification dispersant, 0-5% of disintegrating agent, 0-10% of binding agent, 0.5% of defoaming agent, and a carrier to reach 100%, wherein the mass percentage of metaldehyde and the mass percentage of niclosamide ethanolamine salt cannot be 0% at the same time. The water dispersible granule is convenient to transport, lower in transportation cost, high in active ingredient content, good in dispersity, high in suspensibility and higher in storage stability; no dust is generated basically in a production process; the environmental control cost is low; the water dispersible granule is sprayed for application after the water dispersible granule is diluted with water; the residue of the water dispersible granule in an environment is reduced; the possibility of spray head blocking is low; no dust drift exists during use; the influence on an operator and the surrounding environment is smaller; and the possibility of hazards and environmental pollution is low.
Owner:广东农密生物科技有限公司

Preparation method of basalt fiber fabric reinforced nylon 6 prepreg composite material

ActiveCN109384916AReduce residueComposite DensePolymerization catalystsNylon 6
The invention provides a preparation method of a basalt fiber fabric reinforced nylon 6 prepreg composite material. The preparation method of the basalt fiber fabric reinforced nylon 6 prepreg composite material comprises the following steps: 1) dividing a caprolactam melt into two portions with equal weights, and separately storing the two portions in a liquid charging device A and a liquid charging device B; and adding a caprolactam anionic polymerization catalyst in the liquid feeding device A and mixing uniformly, adding a caprolactam anionic polymerization co-catalyst in the liquid feeding device B and mixing uniformly, adding the mixture in the liquid charging device A and the mixture in the liquid charging device B in a double-screw extruder, uniformly mixing the mixtures by the double-screw extruder and extruding mixed melt into an impregnating tank; 2) dragging a basalt fiber fabric into a corona charging device, charging and then feeding the basalt fiber fabric into the impregnating tank; and 3) heating the basalt fiber fabric treated in step 2), triggering caprolactam anionic polymerization reaction, rolling and cooling. The basalt fiber fabric can be fully impregnated by the caprolactam melt so as to prepare the high-performance basalt fiber fabric reinforced nylon 6 prepreg composite material.
Owner:JIANGSU HARMONY & MIGHTY SCI & TECH DEV CO LTD

Toothpaste box

The invention discloses a toothpaste box which is used for extruding toothpaste from a toothpaste shell. The toothpaste box comprises a shell, a support is installed in an inner cavity arranged in theshell, a sliding base is installed on a guide rail arranged on the support, a pressing roller is installed on the sliding base, one end of a roller shaft stretches out of a communication port formedin the side wall on one side and provided with a rotary knob, the front end of the support is hinged to the inner wall of the front end of the shell, a compressed spring is installed between the rearend of the support and the inner wall of the shell and used for compressing the rear end of the support, and the side wall of the front end of the shell is provided with an installation opening through which a port of the toothpaste shell stretches out. The toothpaste shell below the toothpaste box is extruded downwards and pushed forwards through the pressing roller which can roll forwards, therefore, toothpaste in the toothpaste shell is extruded from an outlet in the front end, the toothpaste shell is supported by the bottom face of an inner cavity of the shell and directly pushed downwardsthrough the pressing roller, the pressing roller can move downwards along with swing of the support to reduce the distance between the pressing roller and the bottom face of the inner cavity, therefore, the toothpaste box is applicable to toothpaste shells with different thicknesses and can extrude various toothpaste shells sufficiently, the residual amount of toothpaste is reduced, and toothpaste waste is reduced.
Owner:姜佳文
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