334results about How to "Avoid osmosis" patented technology

Coated composite proppant particles made of particulate substrates having an elastomeric coating are provided for use in reducing particulate flowback in subterranean formations. The disclosed proppant particles can have a coating of resin, fibrous materials, and/or soluble resin coatings in addition to an elastomeric coating. Methods of making the coated particles are also described, as well as their use in subterranean formations.

The present invention provides a drug containing a compound having Trk-inhibiting activity as an active ingredient in prophylaxis and/or therapy for Trk-related diseases such as pain, pruritus, lower urinary tract dysfunction, asthma, allergic rhinitis, inflammatory bowel disease or Chagas disease. A compound represented by the general formula (I), wherein all symbols represent the same meanings as described in the specification, a salt thereof, an N-oxide thereof, a solvate thereof or a prodrug thereof is useful as a drug component having Trk-inhibiting activity in prophylaxis and/or therapy of diseases such as pain, pruritus, lower urinary tract dysfunction, asthma, allergic rhinitis, inflammatory bowel disease or Chagas disease.

The invention discloses a system and a method for detecting a rogue wireless access point in a local area network. The system comprises a database, a wireless monitoring module and a central processing unit, wherein the database is used for storing the corresponding information of a legal wireless access point in the local area network in a legal list; the wireless monitoring module is used for periodically scanning each channel in the local area network to acquire identification information from the channel, and used for testing a suspected wireless access point determined by the central processing unit, trying connecting the suspected wireless access point in a management mode, and further trying connecting a plurality of legal nodes in the local area network by the suspected wireless access point if the connection is successful; and the central processing unit is used for comparing the identification information of an existed access point acquired by the scanning with the corresponding information in the legal list, and listing the wireless access point not occurring in the legal list as the suspected wireless access point and judging that the suspected wireless access point is the rogue wireless access point if successfully receiving the feedback information that the suspected wireless access point is successfully connected with the legal nodes from the wireless monitoring module.

The invention discloses a making method of 4-methyl-7-oxy-1-aza bicyclo [3. 2. 0] pimelic-2-olefin-2-carboxyl derivant, which is characterized by the following: adopting two-phase solvent as solvent to catalyze and hydrogenate; simplifying the operating method of separation and purifying; reducing the need of reacting equipment and condition; fitting for large scale of industrial manufacturing.

The invention relates to the technical field of a protection structure, in particular to a shock-resisting flexible protection structure and also provides a manufacturing method of the shock-resisting flexible protection structure. The shock-resisting flexible protection structure comprises silicone rubber, a three-dimensional warp-knitted spacer fabric and a shear thickening solution, wherein the shear thickening solution comprises nano silicon dioxide particles and polyethylene glycol, the shear thickening solution is filled in an intermediate layer of the warp-knitted spacer fabric, the silicone rubber is used for packaging two sides and periphery of the warp-knitted spacer fabric to form a leak-proof bagged sealing structure. By utilizing the nano silicone dioxide particles, the thickening effect of the shear thickening solution can be adequately played, the nano silicon dioxide particles can be instantaneously converted from liquid state to solid state when suffering the shock effect, and the intelligent conversion is realized; by utilizing the warp-knitted spacer fabric, the entire flexible protection structure is stable, the mechanical property is excellent, and the shock-resisting flexible protection structure can be used for bending parts and curve structure parts such as joints.

The invention relates to thermal conduction potting silica gel based on a phase-changing microcapsule and a preparation method of the thermal conduction potting silica gel. The thermal conduction potting silica gel is prepared from the following components by mass percent: 50 to 90 percent of dual-component potting silica gel, 5 to 25 percent of phase-changing microcapsules and 5 to 25 percent ofsurface-treated thermal conduction filler. The preparation method comprises the following steps: treating the surface of the thermal conduction filler; preparing the thermal conduction composite filler; preparing a component A and a component B in the dual-component potting silica gel; preparing a component A1 and a component B1 in the thermal conduction potting silica gel; and preparing the thermal conduction potting silica gel. According to the preparation method, the surface treatment is performed on the thermal conduction filler in the preparation process, so that the dispersity of the thermal conduction filler in a silica gel matrix is improved, and the thermal conduction performance of the thermal conduction potting silica gel is improved; and by adding the phase-changing microcapsule, the thermal conduction potting silica gel has the heat-storage temperature control performance. The thermal conduction potting silica gel has good thermal conduction performance and heat-storage temperature control performance.

The invention relates to a penetration type transparent concrete protection paint and preparation method thereof, which comprises the following steps: diluting a fluoropolymer by diluents, adding a curing agent, mixing as the first component, and then adding silane which is used as the second component, mixing uniformly; the product is coated on the concrete surface and penetrates into the concrete for combining into one body, thereby forming a deep protection, effectively reducing water absorption of concrete, increasing packing of concrete surface, improving resistance to chemical corrosion, resistance to carbonization and resistance to frost, especially blocking the channel by which the extraneous moisture can enter into the internal part of the concrete, substantially improving waterproofness of the concrete, and effectively prolonging the service life.

The invention provides a low-temperature thermal control phase change microcapsule and a preparation method thereof. The low-temperature thermal control phase change microcapsule takes paraffin alkane as a core material and urea resin as a shell, and further comprises a heat conduction filler, the heat conduction filler is added in the process of coating the paraffin alkane by the urea resin, and the amount of the added heat conduction filler is 5%-30% that of the paraffin alkane. The low-temperature thermal control phase change microcapsule prepared by the invention is solid-solid phase change, the problems of fusion flowing and permeation migration are avoided, the range of phase change temperature is wide, the latent heat is large, the condensate depression is small, the phase change process is stable, the phase change is reversible, the material further has a higher heat conduction property, and as a relatively ideal thermal control phase change material, the low-temperature thermal control phase change microcapsule can be widely used in the fields of thermal protection, like aerospace, precise instruments, and electron devices.

The invention discloses a high-temperature walking beam furnace beam and column insulation lining slag-adhesion-preventing coating. The coating comprises the raw materials of, by weight: 55-60% of the bauxite clinker, 5-10% of magnesium aluminate spinel, 5-10% of calcined anthracite, 2-5% of flake graphite, 3-6% of silicon carbide, 4-6 % of alpha-Al2O3 powder, 4-6% silica micro-powder, 5-7% of calcium aluminate cement, 0.5-1.5% of metal silicon powder, 2.5-3.5% of water-soluble epoxy resin and water-soluble curing agent, 0.05-0.10% of explosion-proof fiber, 0.1-0.15% of sodium hexametaphosphate, 0.05-0.10% of an organic reducing agent, and 0. 04-0.07% of an organic silane coupling agent. With the slag-adhesion-preventing coating, the comprehensive targets are achieved, that service lives of the furnace beam and the column insulation lining are prolonged, furnace energy consumption and insulation lining surface slag adhesion amount are reduced, furnace maintenance cost is reduced, and high-temperature-oriented silicon steel production efficiency is improved.

The invention relates to a clinching tool (20) for establishing a load-bearing, or supporting, or stable connection of a first metal workpiece (11) to a second metal workpiece (12). The clinching tool (20) comprises a male die (20) and a female die (30), which together form and join a clinching connection (13) connecting, or permanently connecting, the first metal workpiece (11) to the second metal workpiece (12), via local, plastic deformation or reshaping. The male die (20) has a die having a flank (25) disposed concentrically to the rotational axis (24). The flank (25) has a face surface (23) that is positioned perpendicular to the rotational axis (24). The flank (25) is conically shaped at least in the lower transitional region (21) to the face surface (23) and has a flank angle (W, W1, W2) that is smaller than, or equal to, 10 degrees, preferably smaller than, or equal to, 5 degrees.

The invention discloses a multi-level fully-closed reinforcement method of an exposed fault zone of an excavated side slope, which comprises the following steps: after the side slope is excavated, immediately spraying concrete in the exposed fault zone to close the excavated slope; supporting the exposed fault or the broken rock of the side slope by adopting self-advancing anchors and consolidation grouting; then, applying a slope-sticking reinforced concrete panel in the exposed fault zone of the side slope to permanently close the zone, and burying drain holes, system anchors and orifice pipes of anchor cables in advance before casting; and finally, carrying out construction of the drain holes, the system anchors and the prestressed anchor cables to finally realize multi-level fully-closed reinforcement of the exposed fault zone of the side slope from the outside to the inside. The invention can be used for reinforcing the excavated side slope which has the defects that the fault has wide exposed range, low strength and poor properties, can be softened and collapsed easily in water, has large plastic deformation when the anchor cables are tensioned and can not be applied with prestress, thereby furthest improving the overall stability and the reinforcement effect of the side slope.

The invention discloses a high-toughness waterproof coiled material and a preparation method thereof, belonging to the field of waterproof coiled materials. The waterproof coiled material includes: a substrate layer, the upper and lower surfaces of the substrate layer are respectively provided with self-adhesive waterproof layers, and the surfaces of the self-adhesive waterproof layers are respectively provided with isolation protection layers. Wherein, the base material layer is an alkaline glass fiber felt layer, the self-adhesive waterproof layer is a polymer modified asphalt, and the isolation protection layer is a PE film. The preparation steps include: (1) preparation of graphene/natural rubber nanocomposite material; (2) preparation of polymer modified asphalt; (3) preparation of waterproof coiled material. The waterproof coiled material of the present invention not only has good waterproof and anti-corrosion effects, but also greatly improves the toughness of the waterproof coiled material, and the existence of graphene makes the waterproof coiled material have better environmental stability, greatly extending the waterproof coiled material. service life and has a good application prospect.

The invention discloses a polymer nanometer blocking agent for water-based drilling fluid and its preparation method, and belongs to the technical field of a drilling fluid function material. The polymer nanometer blocking agent for water-based drilling fluid is prepared from, by weight, 4-16 parts of emulgator, 2-14 parts of temperature sensitive monomer, 10-53 parts of hydrophilic monomer, 0.5-10 parts of hydrophobic monomer and 0.05-0.5 part of initiator. The polymer nanometer blocking agent is small in size, and can block micro and nano-sized holes of a shale well wall; through compressivedeformation property of the poymer, the compact blocking of the well wall hole can be realized; by means of the temperature response property of an intelligent polymer, the transformation from hydrophilia to hydrophobicity is realized in the well wall, and the zone closing to the well wall is transformed to be a hydrophobic environment, thus the diffusion and permeation of water in the water-based dirlling fluid towards the shale well wall is effectively stopped, thereby stabilizing the well wall and protecting reservoir, and providing an important technical guarantee for the development of the water-based drilling fluid system for shale development.

The invention discloses a two-in-one nourishing and moisturizing bath composition, which comprises the following ingredients (by weight): 40-70% of an oily component, 15-40% of a surfactant, 1-10% ofan emollient, 0.01-5% of a nutritional component and 0.01-5% of a stabilizer. The composition of the invention is mild, has low level of irritation, has good foam, is nourishing and moisturizing, is moisturizing and soft during bathing, and will not have sticky feeling. Through reasonable matching of selected natural oil, MIPA-laureth sulfate and lauryl polyoxyethylene (4), bathing sticky feelingof an oily bath product is improved. The selected sunflower seed oil and caprylic/capric triglyceride have nourishing and moisturizing, antioxidation and skin repairing and barrier functions. Througha reasonable proportion of the emollient, irritation caused by anionic and nonionic surfactants used in the product is greatly reduced. A hydrophilic film is formed on the epidermis, thus greatly raising skin barrier function. With the protective film while cleaning and through lots of oil, the skin is provided with a nourishing and soft feeling.

The invention discloses environment-friendly anhydrous stemming for a submerged arc furnace and a preparation method of the environment-friendly anhydrous stemming. The environment-friendly anhydrous stemming is prepared from the following raw materials in parts by weight: 10 to 20 parts of forsterite, 10 to 45 parts of magnesia, 10 to 20 parts of silicon carbide, 10 to 25 parts of coke, 5 to 15 parts of asphalt, 10 to 20 parts of clay, 5 to 15 parts of nitride, 3 to 10 parts of kyanite, 0 to 15 parts of quartz powder, 12 to 20 parts of carbon black oil, 2 to 8 parts of anthracene oil and 0.5 to 2 parts of plasticizer, wherein the nitride is one or a mixture of ferro silicon nitride, silicon nitride, aluminum nitride and titanium nitride, and the carbon black oil and the anthracene oil are premixed to form a composite environment-friendly binding agent for standby use; raw materials are weighed and added into a mixing mill to be dry-mixed; the binding agent is added, mixed and milled; the plasticizer is added and stirred; and the mixture is extruded and molded. The environment-friendly anhydrous stemming is safe to the human body and environment, high in performance, low in consumption, and good in slag erosion resistance and scouring resistance.

A cement composition, comprises a mixture of a blend of materials including cement and/or micro cement, calcium carbonate, organic fibres, and inorganic fibres; and water; wherein the composition forms a cement that is at least partially soluble in acid and/or water. A method of treating a well, comprises pumping the composition into the well, allowing the cement to set, and treating the set cement so that it is partially to completely dissolved. In case of partial dissolution the residue in time is degradable. The inorganic fiber can be used in the traditional cementing in all stages of the well construction to defeat partial losses and improve the set properties of the final set cement.

The invention discloses a paper-plastic container and a production method thereof. The paper-plastic container consists of an inner film layer, a paper layer, a printed layer and an outer film layer, and is characterized in that: the outer film layer is an extinction biaxially-oriented polypropylene (BOPP) layer; the printed layer is arranged on the inner side of the outer film layer; and the inner film layer is a polyethylene (PE) or polypropylene (PP) layer. The paper-plastic container and the production method thereof have the characteristics of paper surface film-coating uniformity, high anti-permeability, good printing effects, printed pattern drop resistance and no secondary pollution.

The invention discloses an overlapping structure and a construction method of a waterproof coiled material, and belongs to the technical field of waterproof layer construction. The overlapping structure includes two waterproof rolls whose ends are overlapped with each other, wherein one end of the waterproof roll is in an asymmetric concave shape, and the end of the other waterproof roll is in a corresponding convex shape. The overlapping parts of the waterproof membrane are connected by an adhesive layer, and a waterproof strengthening coating is also provided at the seam of the surface of the waterproof membrane. The construction method of the lap joint structure is as follows: clean up the lap joint ends of the two waterproof rolls and remove the protective film; evenly coat the contact surfaces of the two lap joint ends with adhesive epoxy resin/graphene nanocomposite material ;Tightly combine the two overlapping ends, press for 2~5 minutes, and then apply a strong waterproof coating on the seam of the upper surface of the waterproof membrane, and let it dry. The overlapping structure can greatly improve the firmness of the overlapping structure of the waterproof coiled material, avoid water seepage and leakage, and has a good application prospect.

The invention discloses an anti-crack and anti-falling coating and a preparation method, which belong to the technical field of coatings. The coating is prepared from the following components: modified polyurethane, modified epoxide resin, glass fiber, aluminum oxide, sodium stearate, paste attapulgite clay, putty cream, kieselguhr, a defoaming agent, a filling agent, pigment, and appropriate amount of water. The preparation method comprises the steps of weighing the modified polyurethane and the modified epoxide resin, adding into a reaction kettle, adding appropriate amount of water, and carrying out mixed reaction to obtain a mixture a1; adding the paste attapulgite clay, uniformly stirring, putting in an ultraphonic condition, and obtaining a mixture a2; adding the putty cream, the kieselguhr, the defoaming agent and the filling agent, stirring, shearing, adding a pigment, and uniformly mixing to obtain the coating. The coating provided by the invention not only has a better waterproof and anticorrosion effect, but also has a better anti-crack and anti-falling performance. In addition, the preparation method is simple and practicable, and has a better application value.

The invention discloses water-based drilling fluid. The water-based drilling fluid is prepared from clear water, inhibitor, filtrate reducer, blocking agent, pH regulator and heavy loader according to the weight ratio of 100:(20-25):(15-20):(1-2):(0.5-1):(35-200). By the adoption of the water-based drilling fluid, environmental hazard of oil-based drilling fluid can be avoided, and efficient blocking, multi-phase lubrication, complex inhibition and weak gel property are realized. The water-based drilling fluid is suitable for drilling in a shale gas horizontal well of a long horizontal wellbore which has high hardness and fragility and is prone to collapse, and has high environment friendliness and economical efficiency.