265results about How to "Long-term protection" patented technology

A weather resistant coating composition comprising a miscible polymer blend of highly crystalline polyvinylidene fluoride polymer and polyalkyl methacrylate, such as PVDF and PMMA. The miscible blend comprises from about 50 weight percent to about 90 weight percent polymer comprising polyvinylidene fluoride and from about 10 weight percent to about 50 weight percent polyalkyl methacrylate. The polyalkyl methacrylate having a molecular weight within the range of about 25,000 grams per mole to about 200,000 grams per mole. The crystallinity of the polyvinylidene fluoride polymer is about 20% to about 70%. The weather resistant coating has excellent and unexpected physical characteristics, including solvent resistance and gloss retention.

A protective cap having a first cap and a second cap that are removably coupled together for use in short-term and long-term antimicrobial treatment of needleless connectors and access ports of an infusion system. The instant invention further provides a protective cap having a first cap and a second cap that each coupled to a different surface of a component of an infusion system, such as a syringe. The instant invention further provides a strip containing a plurality of disposable protective caps.

The invention discloses a dual-component aqueous polyurethane paint with scrawling resistance and pasting resistance, and a preparation method thereof. The dual-component aqueous polyurethane paint with scrawling resistance and pasting resistance is prepared by using aqueous hydroxy-containing polyacrylic resin dispersion and fatty group polyisocyanate as main film forming substances, adding organosilicon resin emulsion, deionized water, antifoaming agent, wetting agent, dispersant, pigment, dulling agent, wax emulsion and thickening agent and carrying out high speed disperse. The paint has characteristics of high crosslinking density, low surface tension, strong permeability resistance, good scratch resistance, substantial scrawling resistance and pasting resistance, excellent performances of low VOC content, high hardness, good weatherability, brushing resistance and chemical resistance, and is suitable for application fields of municipal public facility, building paint and terrace paint coating, etc.

The present invention relates to novel compositions for disinfecting and sealing a substrate, while also providing the surface with long-term fungicidal protection. Due to this unique and advantageous combination of capabilities, the composition finds particular utility in the construction industry, where it may advantageously be employed to treat a wide variety of construction articles.

The invention relates to a novel highly-abrasion-resistant, anti-corrosion and anti-static coating and a preparation method thereof. The coating comprises basic thermosetting resin and a filler, wherein the basic thermosetting resin is modified resin for coatings; the filler is formed through blending and combining one or more of a carbon nano tube, carbon black, graphite, graphene, nano aluminum powder and conductive mica powder with one or more of quartz sand, glass flake, nano silicon dioxide, nano-molybdenum disulfide, aluminium oxide and modified montmorillonite. The coating is directly smeared or sprayed on the surface of a metal outer shell of electronic and electrical equipment, the equipment can be effectively prevented from being corroded by the environment for a long time, and the influence of pad points and electromagnetic interference on the safe, normal and stable use of the equipment is prevented.

The invention belongs to the field of pharmaceutical preparations, and relates to a long-acting sustained release preparation for preventing or treating retinal damage, and a preparation method thereof. The long-acting sustained release preparation takes erythropoietin (EPO) as an active component, takes dextran as a protective agent for the active component, and takes poly(lactic-co-glycolic acid), polylactic acid or polycaprolactone as a coating component to prepare sustained release microspheres, wherein the erythropoietin is coated by the poly(lactic-co-glycolic acid), polylactic acid or polycaprolactone. Proven by animal experiments, the sustained release microspheres of the long-acting sustained release preparation provided by the invention have the same protective actions on the ganglionic cells of damaged retinas by single vitreous chamber injection and repeated EPO protein vitreous chamber injection, and the sustained release microspheres are capable of avoiding a series of complications caused by many times of injection and overcoming the defects of repeated intraocular injection administration and gene therapy. The long-acting sustained release preparation provided by the invention adopts intraocular local administration, can reduce the dosage and treatment cost, and can not generate adverse effects on other organs or tissues in vivo.

This invention relates to a recombinant vector comprising a recombinant avian adenovirus incorporating, and capable of expression of at least one heterologous nucleotide sequence. The nucleotide sequence is preferably one which encodes an antigenic determinate of infectious bursal disease virus. The invention further relates to a method of production of recombinant vectors, to methods of preparation of vaccines based on the vectors, to administration strategies and to methods of protecting poultry from disease.

The invention discloses a ballastless track-structured waterproof vibration-reducing flexible protecting structure and a paving method thereof. A waterproof linking layer and a buffer protecting layer are paved between the bottom of a ballastless track foundation plate and the top surface of a surface layer/bridge deck slab of a roadbed in a full-width manner. According to the ballastless track-structured waterproof vibration-reducing flexible protecting structure, by virtue of the linking layer and the buffer protecting layer which are paved on the full fracture surface, the overall stereoscopic water proofing and the integrality are realized; by regulating the dynamic modulus, the damping characteristic and the deformation adaptability of an asphalt concrete protecting layer by virtue of a special modifying enhancer, the rigidity matching and buffer vibration reducing functions are realized; and by enhancing the load diffusivity, the fatigue durability and the water damage resistance of asphalt concrete by virtue of the special modifying enhancer, the problems of premature failure, interlayer slurry extruding, disengaging, even frost heaving and the like of waterproof layers of existing ballastless track roadbeds are effectively solved, the integrality, the smoothness, the uniformity and the long-term stability of a lower base structure of a track are improved, and good and stable support is provided for a ballastless track plate, so that the fatigue life of the track plate is prolonged. The ballastless track-structured waterproof vibration-reducing flexible protecting structure is a long-lasting protection scheme.

The invention relates to a modified composite calcium sulfonate based lubricating grease composition and a preparation method. The composition is prepared from, by weight, 20-50% of high-alkali-value synthesized calcium sulfonate, 45-75% of basic oil, 0.1-2% of conversion agent, 0.1-3% of glacial acetic acid, 1-3% of calcium hydroxide, 0.1-5% of composite acid and 1.0-4.0% of additive, wherein the total weight is 100%. The mechanical stability of a composite calcium sulfonate base is improved and especially a thickness change value of composite calcium sulfonate based lubricating grease in the storage process is decreased by improving the varieties and contents of the conversion agent and the complex additive required in the preparation process and a preparation process of the composition, and accordingly the mechanical stability performance of the composite calcium sulfonate based lubricating grease is improved. In addition, the high-temperature anti-oxidization properties of the composite calcium sulfonate based lubricating grease is improved and can meet the requirement for long service life of the lubricating grease in the using process to the great degree. In addition, the extreme-pressure anti-abrasion and anti-rust properties of the lubricating grease can be improved.

The invention discloses a star anise tree planting method promoting a high yield. The method comprises the steps of seed selection, seed treatment, sowing, seedling culture, field planting and forestation and tree management. According to the star anise tree planting method, the scientific cultivation and management technology is adopted, a suitable growing environment is provided according to the growing characteristics of star anise trees, and the output of the star anise trees can be greatly increased.

The invention discloses water-borne double-component epoxy coating. The water-borne double-component epoxy coating comprises a component A and a component B, wherein the weight ratio of the component A to the component B is (1-2):(1.5-2.5); the component A comprises the following raw materials in parts by weight: 20 to 30 parts of diethylenetriamine, 2 to 5 parts of hexamethylenediamine, 2 to 4 parts of 1,3-diamido-hexylamine, 1 to 2 parts of ethylene glycol butyl ether, 1 to 3 parts of propanediol butyl ether, 1 to 3 parts of gamma-aminopropyltriethoxysilane, 35 to 40 parts of water, 1 to 2 parts of a thixotropic agent, 1 to 2 parts of a defoaming agent, 1 to 2 parts of a dispersing agent, 1 to 3 parts of iron oxide red, 1 to 2 parts of zinc phosphate, 1 to 2 parts of aluminium triphosphate, 5 to 10 parts of silica powder, 10 to 15 parts of modified coal ash, 1 to 2 parts of an acrylic acid type thickener, 2 to 8 parts of organobentonite and 1 to 5 parts of quartz powder; and the component B comprises the following raw materials in parts by weight: 40 to 50 parts of water-borne epoxy resin, 10 to 15 parts of acrylic epoxy ester resin and 2 to 5 parts of water.

The invention relates to the field of oil equipment, particularly to a novel sucker rod coupling and a production process thereof. The novel sucker rod coupling comprises a main body, the main body is a hollow cylinder, the middle of the hollow cylinder is provided with square-neck surfaces matched with a double-edge wrench, the two square-neck surfaces are parallel, and the middle of the main body is provided with an axial internal threaded hole. The novel sucker rod coupling is characterized in that the outer surface of the main body is partially or totally covered with copper-based alloy composite coating, which is composed of, by weight percentage, 10-50% of hard tungsten carbide (WC) particles and 50-90% of copper-based alloy powder. According to the novel sucker rod coupling, the copper-based alloy composite coating and nickel-based alloy coating at both ends of the outer surface of the coupling are connected through transitional sections to ensure continuity and high quality and further to achieve obvious prolonging of the service life and long-term protection on the inner wall of a sucker rod.

A chromium-free wood preservative consisting essentially of 1 to 35% by weight of a mixture of 25 to 75 parts by weight of a fatty amine ethoxylate and 75 to 25 parts by weight of at least one member of the group consisting of an unsaturated fatty acid of 3 to 25 carbon atoms and their copper and zinc salts and water.

The invention relates to a long-acting mosquito expelling gel and belongs to the field of daily chemical goods. The long-acting gel comprises an A phase, a B phase and a C phase in percentage by weight: the A phase: 40.00 to 60.00 percent of deionized water, 0.20 to 1.20 percent of carbomer resin, 0.05 to 1.00 percent of hydroxypropylmethyl cellulose and 0.01 to 1.00 percent of disodium EDTA; the B phase: 10.00 to 30.00 percent of alcohol, 10.00 to 25.00 percent of dimethyl phthalate, 0 to 10.00 percent of geranium extract and 0.01 to 1.00 percent of menthyl lactate; and the C phase: 0.10 to 1.00 percent of diisopropylamine. The long-acting mosquito expelling gel has a mild formulation, comfortable coating feel, is fresh and not sticky, has safe use and remarkable mosquito expelling effect which reaches over 10 hours and meets requirement of medicine specially needed for military.

The invention relates to a polyaspartate coating material for cars. The coating material consists of a main agent and a curing agent, wherein the weight part ratio of the main agent to the curing agent is (100: 20) to (100: 50). According to the preparation method, polyaspartate resin is matched with materials, such as pigments of various colors, an anti-settling agent, a dispersing agent, filler, a defoamer, a leveling agent, a sagging prevention assistant and the like, and then is matched with isocyanate, a catalyst, a diluent and the like, so as to prepare a series of polyaspartate coating materials for cars. The series of coating materials for cars can be coated on the surfaces of the car heads and car bodies of various cars under the condition of natural drying or low-temperature baking, and the thickness of a once-coated film is 20-80 microns. According to the coating material, the drying time is adjustable, sagging can not occur when a coating is too thick, and the sprayed coating film is level, has excellent physical and chemical properties and plays an excellent role in protecting and decorating the cars. The coating material can be widely applied to the coating of products, such as car bodies, car compartments, car parts and the like.

The invention pertains to biomedical technique field, in particular to a TGF-beta induced regulatory T-cell and a synthesis method and the applications thereof. The regulatory T-cell of the invention is formed by combining two cytokines: TGF-Beta and IL-2, and obtained by extrinsically inducing CD4+ cells of autoimmune diseases sufferer, and is recorded as CD4++CD25+Foxp3+ regulatory T-cell, wherein FoxP3 is FoxP3 gene or protein. The regulatory T-cell of the invention can be taken as a medicine preparation that is used for treating the diseases of autoimmune diseases (such as SLE) sufferer.

A liquid corrosion inhibitor comprising a primary, secondary, tertiary or mixed amine complexing agent and a carboxylic acid complexing agent, and may further contain a pH adjusting agent and an antifreeze agent, which is capable of providing both short-term and long-term corrosion protection on ferrous and non-ferrous metal substrates and protection from flash rusting commonly associated with ferrous metal substrates, without adversely affecting high gloss in coatings.

Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.

The invention provides a columnar coupling compound sucker rod centralizer. The centralizer comprises a core rod and a sliding sleeve, wherein the core rod is a hollow cylinder and is provided with an axial via hole in the middle; the via hole is provided with an internal thread suitable for being matched with an external thread of a sucker rod; the sliding sleeve comprises a steel body and a self-lubricating alloy coating; the self-lubricating alloy coating is formed by uniformly mixing 2-6wt% of solid lubrication particles and 94-98wt% of iron-nickel alloy powder; the solid lubrication particles are formed by uniformly mixing MoS2 and WS2; and the iron-nickel alloy powder is prepared from the following components by weight: 0.5-1.1% of carbon, 10-20% of chromium, 1.5-5.5% of silicon, 1.0-4.5% of boron, 25-55% of iron and the balance of nickel. The centralizer has the following advantages: the centralizer has excellent corrosion resistance, wear resistance and self-lubricating property; the use amount of nickel and the cost can be obviously reduced; the service life and the allowable working temperature are substantially improved; the centralizer can well centralize and protect the sucker rods for a long time; and the wear of the oil pipes is reduced.

The invention relates to sterilization and mould prevention water-based emulsion paint. The sterilization and mould prevention water-based emulsion paint is prepared from water, cellulose, a pH adjusting agent, a wetting agent, a dispersing agent, ground calcium carbonate, precipitated barium sulphate, sterilization and mould prevention active group introduced modified pure acrylic emulsion, a coalescing agent, a thickening agent and an antifreezing agent. The defects that a sterilization and mould prevention reagent needs to be additionally added to existing emulsion paint to prolong the storage period of the paint, hazardous substances of the sterilization and mould prevention reagent are prone to volatilize to harm the health of the human body, and the effective period of sterilization and mould prevention is short are overcome, and the advantages that the volatile sterilization and mould prevention reagent does not need to be additionally added, the sterilization and mould prevention effect is lasting, storage is stable, and the preparation method is simple are achieved.

The invention provides an ecological slope protection structure and protection system as well as an ecological slope construction method, and belongs to the field of slope protection. A locking anchorcable section is arranged under the potential sliding surface of a slope; the stability of a rock-soil body under the potential sliding surface is high; through the arrangement of the locking anchorcable section under the potential sliding surface, the locking anchor cable section can be protected against failure when separated from the deformed slope; one end of a free anchor cable section is connected with the locking anchor cable section; and the other end of the free anchor cable is fixed to an anchoring assembly. When the slope is deformed, the anchoring assembly and the anchor cable assembly are combined to form pull force to the slope, so that the slope can be prevented from being further deformed and destroyed; an accommodating trough used for accommodating a soil layer is encircled by the anchoring assembly and the slope, and the soil layer is capable of proving a living environment for plants; and especially for a poor geological section, root systems of the plants can go deep into gaps among rock bodies, the rock bodies can be closely connected, the integrality of the poor geological section can be improved, and then the long-term protection of a slope surface can be achieved.

The invention provides a multifunctional filter element which comprises a filter element body, wherein the filter element body comprises a filter paper layer; the filter paper layer comprises an antibacterial layer, a melt-blown electrostatic electret layer, an active carbon layer and a protection layer which are connected in sequence. Accordingly, the multifunctional filter element has an extremely good filter effect on ozone, nitric oxide, pollen, fungus and SO2 in outdoor pollution, dust mites, formaldehyde, methylbenzene and animal furs in indoor allergens or allergens from plants and the like, and can effectively purify air, improve the symptom of an allergic rhinitis patient and improve the air in a vehicle.

The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldioctadecylammonium-bromide/chloride (DDA) and a lipid extract from The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from <The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from Mycobacterium bovis. The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from Mycobacterium bovis<The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from Mycobacterium bovis BCG The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from Mycobacterium bovis BCG <The present invention provides a vaccin adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from Mycobacterium bovis BCG. The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from <i>Mycobacterium bovis BCG<i>. <The present invention provides a vaccine adjuvant consisting of a combination of a surfactant i.e. dimethyldeoctadecylammonium-bromide/chloride (DDA) and a lipid extract from <i>Mycobacterium bovis BCG<i>. The total lipid extract contains both apolar lipids, polar lipids, and lipids of intermediate polarity of which the apolar lipids were found to induce the most powerful immune responses. The total lipids may be extracted with chloroform/methanol and re-dissolved in water before the addition of surfactant. This preparation may be used to induce prominent cell-mediated immune responses in a mammal in order to combat pathogens, or as a treatment for cancer.

The invention discloses a bearing lubricating oil composition and a preparation method thereof, and relates to the field of industrial lubricating oil. The bearing lubricating oil composition comprises the following components in parts by mass: 55-70 parts of base oil, 8-15 parts of an oiliness agent, 5-12 parts of an anti-wear reagent at extreme pressure, 5-10 parts of a friction improving agent, 3.5-6 parts of an anti-rusting agent, 3.2-5.8 parts of a viscosity index improving agent and 2.2-4.5 parts of an emulsification inhibitor. The preparation method of the bearing lubricating oil composition comprises the steps of (1) weighing; (2) implementation of a jetting mixing method; (3) ultrasonic oscillation; (4) standing. According to the bearing lubricating oil composition and the preparation method thereof which are provided by the invention, the bearing oil with high friction reduction performance at extreme pressure and lubricating performance is provided, and the corrosion resistance and rusting resistance are excellent; the bearing lubricating oil composition is excellent in low-temperature starting property and high-temperature resistance; damage, caused by friction and external erosion, to a bearing can be effectively reduced, and the service life of the bearing is prolonged.