9results about How to "Long lasting effect" patented technology

This solution relates to the coatings field and proposes an aqueous nano-dispersion of far-infrared negative oxygen ion material. By weight, it comprises: 300-350 parts water; 35-45 parts wetting agent; 40-60 parts dispersant; 25-35 parts defoamer; 35-45 parts multifunctional additive; 5-7 parts thickener; 400-600 parts activated far-infrared negative oxygen ion material; 1-3 parts accelerator; and 3-5 parts shielding agent. This solution designs a multi-component synergistically promoting activated far-infrared negative oxygen ion material, which can improve the hemispherical spectral emissivity in the 4-14μm band, even reaching above 0.95 in the key 8-12μm band, effectively promoting formaldehyde decomposition with a long-lasting effect, while also improving antibacterial properties.

The invention provides a spirotetramat polyurethane / polyurea microcapsule suspending agent as well as a preparation method and application thereof, and belongs to the technical field of pesticide preparations. The preparation method comprises the following steps: mixing an oil-phase solution containing spirotetramat raw medicine and polyisocyanate with a water-phase solution containing an emulsifier and a dispersant, carrying out shear emulsification, adding a water-soluble wall material monomer water solution containing polyamine and / or polyol, and carrying out an interfacial polymerization reaction; after the polymerization is finished, sequentially carrying out curing treatment and cooling, then adding an auxiliary agent, and blending to obtain the spirotetramat polyurethane / polyurea microcapsule suspending agent. The spirotetramat microcapsule suspending agent is prepared through an interfacial polymerization method, spirotetramat is coated in a polyurethane or polyurea capsule wall, and the spirotetramat microcapsule suspending agent has the advantages of being high in encapsulation efficiency, good in physical and chemical stability, long in pesticide effect lasting period, safer to non-target organisms (such as bees) and the environment and the like. The preparation method is stable in process, easy for industrial production and excellent in product performance.

The utility model belongs to sleep aid technical field, concretely is a kind of intermittent type enhancement electric pulse rhythm stimulation manufacturing circulatory tension to relax sleep aid device. Including control module, for setting and adjusting current parameter;Micro-current release module, the micro-current release module connection control module, and with positive / negative pole piece connection;Acquisition module, including heart rate module, acceleration sensor and electromyography module;Charging module, with control module circuit connection;Storage module, and sleep analysis model are stored with 9 grades current parameter;The control module is configured as: according to acquisition module data, sleep stage is judged by sleep analysis model, and the output waveform of micro-current release module is dynamically adjusted. The utility model formed safe and effective, simple method, fast effect and applicable to most sleepless user's device, specific performance is sleep length is greatly shortened, night wake frequency reduces, and sleep efficiency is greatly improved.

This application discloses a method for preparing Nutmeg and Schisandra pills to improve depression-induced arrhythmia, including the following steps: S1, take nutmeg, costus root, aucklandia root, and long pepper, in parts by weight, 20-30 parts of nutmeg, 15-25 parts of costus root, 15-25 parts of aucklandia root, and 10-20 parts of long pepper, add water for distillation extraction, and collect the obtained volatile oil. This application uses extrusion spheroidization combined with fluidized bed coating technology to prepare sustained-release microcapsules, prolonging the duration of efficacy, reducing the frequency of medication, and avoiding excessive fluctuations in blood drug concentration, thus reducing the risk of adverse reactions. The volatile oil is fully extracted by sufficient steam distillation, combined with an appropriate ratio of β-cyclodextrin inclusion and spray drying process to reduce the loss of volatile oil and ensure the stability of the formulation efficacy. The high-dose ratio of medicinal materials can not only effectively regulate the patient's mood and improve the depressive state, but also improve myocardial blood supply, stabilize cardiac electrophysiology, and break the vicious cycle between depression and arrhythmia.

The invention relates to the technical field of high polymer materials, and particularly discloses anti-yellowing polyester resin for an MDF plate and a preparation method of the anti-yellowing polyester resin. An antioxidant unit and a formaldehyde reactive unit are simultaneously bonded on a molecular chain of the polyester resin through covalent bonds, and the two functional units are connected to a polyester main chain through flexible chain segments. The preparation method comprises the following steps: firstly, synthesizing a difunctional linking agent of which one end contains an antioxidant group, the other end contains a formaldehyde reactive group and the middle is connected by a flexible chain segment; and carrying out melt polycondensation reaction on the coupling agent serving as an end-capping reagent or a comonomer, polyhydric alcohol and polybasic acid to obtain the target resin. The problems of migration, loss and failure caused by traditional physical addition of small-molecule auxiliaries are fundamentally solved, so that when the obtained polyester resin is used for an MDF plate facing coating, lasting and efficient hot-pressing yellowing resistance and weather yellowing resistance can be provided, the free formaldehyde release amount of a plate can be continuously captured and reduced, and the service life of the plate is prolonged. The decorative property and the environment-friendly property are both improved.

The application discloses a preparation method of water-soluble hydrogen-containing siloxane and application of the water-soluble hydrogen-containing siloxane in the field of cosmetics, and belongs to the technical field of cosmetic raw material preparation and application. The preparation method comprises the following steps: 1) preparation of a catalyst solution; 2) mixing of raw materials; 3) catalytic reaction; and 4) post-treatment and purification. In the application, water-soluble groups such as polyethylene glycol, polypropylene glycol and polyglycerol are used to modify siloxanes with Si-H bonds such as cyclosiloxane and polymethyl hydrogen siloxane, so as to prepare water-soluble hydrogen-containing siloxane. The water-soluble hydrogen-containing siloxane prepared in the application has excellent water solubility, good compatibility with a water phase system of cosmetics, can stably and continuously release hydrogen molecules in a water-based proton solvent, and the hydrogen molecules can effectively reduce high-activity free radicals in skin, reduce damage of the free radicals to skin cells, and realize antioxidant and anti-wrinkle effects. The product prepared in the application has high purity and good safety, raw materials are easy to obtain, the process is easy to industrialize, and the product can be widely applied to various water-based or water-oil compound cosmetics.

The present application provides a kind of aceclofenac enteric microcapsule and its preparation method, the microcapsule includes core and coating, the core includes pill core, aceclofenac, adhesive;The coating includes enteric coating material, plasticizer, anti-adhesive. By screening and optimizing the type and proportion of adhesive and enteric material, optimizing and controlling the preparation process parameters, effectively improve the stability and long-term stability of aceclofenac sustained-release microcapsule, block the release of drug in mouth and stomach, direct the drug to small intestine and slowly release, and the release effect is long-acting and durable.

This invention discloses a black hot spring bath concentrate, its preparation method, and its application, relating to the field of personal care products technology. It comprises component A, an active black hot spring concentrate, and component C, a sulfide and humic acid composite stabilization system. Component A must contain humic acid with a content of ≥500 mg / L metasilicic acid, 5-15 mg / L fluoride ions, ≥10 mg / L total hydrogen sulfide, ≥20 mg / L metaboric acid, and ≥100 mg / L total organic carbon. Component C consists of selenite, polyphenolic antioxidants, and metal ion chelating agents. This invention utilizes a low-temperature membrane enrichment-bioenzymatic hydrolysis coupling-nano-stabilization integrated technology to fully preserve the quaternary characteristic component spectrum of black hot springs ("metasilicic acid-fluoride-sulfide-humic acid"), and uniquely employs a composite stabilization technology targeting the dual-active system of "sulfide-humic acid." It can be stored for a long time at room temperature and pressure, exhibiting excellent physical stability and long-lasting efficacy, and demonstrating a clearly targeted therapeutic effect of black hot springs.

This invention provides a dense honeycomb structure cross-linked sodium hyaluronate gel and its preparation method, comprising the following steps: S1. Preparing a chloride ion solution, adding a cross-linking agent, slowly adding sodium hyaluronate under stirring conditions, adjusting the pH to alkaline, and stirring evenly under vacuum conditions to obtain a mixture; S2. Maintaining vacuum conditions, heating the mixture in a water bath, cutting it to obtain a block gel, cross-linking it in a water bath to obtain a cross-linked sodium hyaluronate gel; S3. Adjusting the pH of the cross-linked sodium hyaluronate gel to neutral, performing a first vortex-shear composite grinding treatment to obtain a homogeneous paste-like gel, dialysis, then a second vortex-shear composite grinding treatment, adding non-cross-linked sodium hyaluronate and PBS solution, performing a third vortex-shear composite grinding treatment, filling, and sterilizing to obtain the dense honeycomb structure cross-linked sodium hyaluronate gel. The dense honeycomb structure cross-linked sodium hyaluronate gel obtained by this invention has smooth injection, strong support, long-lasting effect, and low adverse reaction rate.