348results about How to "Easy to spread" patented technology

The invention discloses a hydrocracking catalyst for producing heavy naphtha in great abundance and a preparation method thereof. The catalyst contains hydrogenation active metals and a carrier which consists of modified Y molecular sieves and alumina, wherein the Y molecular sieves are obtained by using a mixed aqueous solution of aluminum salts and an acid to perform hydro-thermal treatment. The properties of the modified Y molecular sieves are as follows: the specific surface area is between 750 m<2>/g and 850 m<2>/g; the total pore volume is between 0.35 and 0.48 ml/g; the relative crystallinity is between 90 and 130 percent; the cell parameter is between 2.437 and 2.445 nanometers; the silicon-aluminum mol ratio is between 15 and 70; the infrared acid amount is between 0.5 and 1.0 mmol/g; the B acid/L acid is more than 7.0; and the content of sodium oxide is less than or equal to 0.05 weight percent. The hydrocracking catalyst has the characteristics of good catalytic activity, high heavy naphtha selectivity, high yield, high latent content of heavy naphtha arene, and so on.

An object of the invention is to provide a carbon nanotube electrode which is suited to quantity production and advantageous in cost, and a process for producing the same. When carbon nanotubes on respective catalyst particles 12 on an endless belt 3 gradually fall down to a horizontal position while moving around a driven drum 2 after traveling from a CVD zone to a transfer zone with the movement of the belt, the carbon nanotubes 11 have their outer ends pressed against a conductive film 8. The conductive film 8 is sent out from a film feeder 9 downward and heated by a heater 10 to a temperature not lower than the softening temperature of the film to below the melting temperature thereof. The carbon nanotubes 11 are transferred from the catalyst particles 12 to the conductive film 8 substantially perpendicular to the film surface by being pressed against the conductive film 8 in this way.

An application tip (100) for a viscous or pasty composition comprises a body (101) including a proximal end (102) that can be fastened onto a device for dispensing said composition and a distal end (103) that is provided with an outlet orifice (104), an internal duct (110) extending between the proximal and distal ends of said body. The internal duct (110) comprises at least one portion (112) of flat shape opening out at the outlet orifice (104) and including adjacent grooves (113) in at least one of its sides.

A formulation has been developed for treatment of the symptoms of dry eye which incorporates the natural product jojoba wax, or components thereof, to enhance the spreading of the artificial tear and eyedrop as well as stabilize the eyedrop. The improved performance of the jojoba wax supplemented tear relieves irritation and discomfort as well as sharpens the blurred vision.

A nitride semiconductor light-emitting device with an electron pattern that applies current uniformly to an active layer to improve light emission efficiency is provided. The nitride semiconductor light-emitting device includes multiple layers of a substrate, an n-type nitride layer, an active layer of a multi-quantum-well structure, and a p-type nitride layer. The nitride semiconductor light-emitting device further includes a p-electrode pattern and an n-electrode pattern. The p-electrode pattern includes one or more p-pads disposed on the p-type nitride layer, and one or more p-fingers extending from the p-pads. The n-electrode pattern includes one or more n-pads disposed on an exposed region of the n-type nitride layer to correspond to the p-pads, and one or more n-fingers extending from the n-pads. The n-fingers have identical resistance, and the p-fingers have identical resistance to improve current spreading to the active layer.

The invention discloses a hydrogenation catalyst and a preparation method thereof. The catalyst comprises hydrogenation active metal components and a carrier consisting of the small crystal grain Y-shaped molecular sieve, amorphous silica-alumina and aluminum oxide, wherein the small crystal grain Y-shaped molecular sieve is a small crystal grain Y-shaped molecular sieve subjected to hydro-thermal treatment. The hydrocracking catalyst provided by the invention has the characteristics of high catalyst activity, excellent target product selectivity, great preparation flexibility, and the like, thus the catalyst can be used for preparing products such as heavy naphtha, aviation kerosene, diesel oil and the like with high yield and good product quality.

The invention discloses an electromagnetic current coupling field assisted hybrid melting-brazing method for a laser-TIG arc and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of plasma formed through ionization of laser, arc and a raw material metal, thereby improving the laser utilization rate. Under the electric field assisted comprehensive effect, the weld melting depth is increased, and the assistant effect on the melting bath of the liquid-state brazing filler metal for laser-arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, stabilizing the welding process, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.

The invention discloses a nano ZSM-5 molecular sieve based catalyst and preparation and use methods. The molecular sieve catalyst consists of molecular sieves and metal components, wherein the molecular sieves are nano ZSM-5 molecular sieves with a short b-axis, a medium high silica-alumina ratio, less strong acid, high Lewis acid content, and resistance to hydrothermal deactivation. The preparation method is as follows: mixing a silicon source, an aluminum source, a template agent, a structure promoter, an additive and alkali with water, and stirring to prepare a precursor solution, then crystallizing, separating solid from liquid, and calcinating to obtain molecular sieve raw powder; mixing the molecular sieve raw powder with an ammonium salt solution, stirring, filtering, mixing with the ammonium salt solution for several times, stirring, filtering, and calcinating to obtain hydrogen-type ZSM-5 molecular sieves; mixing with the metal precursor solution, drying and calcinating to obtain the aromatization catalyst. The use method is as follows: transforming oxy-compound raw materials to aromatic hydrocarbon through the catalyst under the reaction conditions. The nano ZSM-5 molecular sieve based catalyst has the characteristics of being high in aromatics yield (reaching up to 99%) and long in service life (the catalyst is alive after 300 hours, and the aromatics selectivity reaches up to 70% after the catalyst is subjected to hydrothermal aging at 760 DEG C for 4 hours).

A pharmaceutical or cosmetic carrier or composition for topical application characterized by rheological properties which render the carrier or composition semi-solid at rest and a liquid upon application of shear forces thereto. The composition or carrier are prepared by mixing 1-25 percent of a solidifying agent and 75-99 percent of a hydrophobic solvent, by weight, wherein at least one of them has therapeutic or cosmetic benefits, in the presence or absence of a biologically active substance.

The present invention provides a water-in-oil type sunscreen cosmetic with superior emulsion stability, which hardly whiten the skin when applied, is easy to spread, barely oily, and have excellent applicability. The water-in-oil type sunscreen cosmetic comprises particulate zinc oxide subjected to surface hydrophobizing treatment and/or particulate titanium dioxide subjected to surface hydrophobizing treatment, silicone branched type polyglycerin-modified silicone and isostearic acid, wherein the content of the silicone branched type polyglycerin-modified silicone is 1.5-10% by mass of the total amount of the cosmetic, and the content of the isostearic acid is 0.1-10% by mass of the total amount of the cosmetic.

The invention discloses a baicalin thermosensitive gelatin and a preparation method and use thereof. The baicalin thermosensitive gelatin is prepared by the following steps: (1) taking the following components in percentage by weight: 0.6 to 15 percent of baicalin, 10 to 24 percent of poloxamer 407, 1 to 10 percent of poloxamer 188, 55.8 to 81.17 percent of solvent, 0 to 5 percent of viscosity modifier, and 0 to 0.2 percent of preservative; and (2) dissolving the baicalin and the preservative into the solvent, slowly adding the poloxamer 407 and the poloxamer 188 with stirring, mixing uniformly, adding the viscosity modifier, mixing uniformly, and placing the mixture into freely flowable semitransparent solution to prepare the baicalin thermosensitive gelatin. The baicalin thermosensitive gelatin is flowable liquid at normal temperature, which generates reversible phase change if affected by the body temperature after contacting with a mucous membrane or body fluid. Therefore, the medicament is tightly attached to the mucosal tissue, which is hard to leak. After the phase change is generated in the body fluid, the release rate of the medicament can be controlled.

A method comprises obtaining a frame of information in an access class to be communicated over a wireless channel; determining whether the wireless channel is idle; selecting a random arbitration interframe space based on the access class of the frame; waiting a first time period pertaining to the arbitration interface space; and initiating communication of the frame of information over the wireless channel after the first time period. The method may further comprise, before initiating communication of the frame of information, selecting a random backoff time period and waiting a second time period pertaining to the backoff time period. The random arbitration interframe space may be selected from a predetermined set of values. The number of values in the predetermined set may be associated with the number of possible stations transmitting in the access class.

The present invention provides a quick charge method belonging to the field of the battery and particularly relates to a quick charge method for lithium ion battery and polymer lithium ion battery. During a battery is being charged, the battery stops charging when the battery is charged to a charge limit voltage, and the charge limit voltage between two poles of the battery is set to be U=2U₀−U_s, and U_s is a stabilized voltage which the voltage of the battery falls back to after the voltage of the battery is charged to U₀ at a constant current, U₀ is a standard charge cutoff voltage used by a low rate constant current-constant voltage charging mode which is normally accepted by the industries, and the stabilized voltage U_s is selected as follows: timing begins when the battery stops charging at the constant current, and from a certain time segment, when the drop of an open-circuit voltage of the battery is less than a certain value within the certain time segment, which means that the voltage of the battery is stable, and a voltage corresponding to the first time point of this time segment is selected as the stabilized voltage U_s of the battery.

The invention relates to a preparation method and application of an organosilicon photo-diffusion particle. The preparation method comprises the following steps of: hydrolyzing silane with polar groups in acidic water or co-hydrolyzing silane with polar groups and silane without polar groups in acidic water; and then condensing the hydrolysate into an organosilicon resin spherical particle in alkaline water. The prepared organosilicon photo-diffusion particle is suitable to serve as a coating photo-diffusion membrane, has higher optical efficiency than the PMMA (poly(methyl methacrylate))-based photo-diffusion particle, can also avoid the defects caused by aggregation of photo-diffusion particles, and is simultaneously bonded with cured glue firmly.

The invention discloses a plant essential oil composition for fumigating and killing grain aspergillus flavus. The composition is prepared by utilizing plant or plant essential oil containing cinnamic aldehyde, citral, thymol and salicylaldehyde or by utilizing synthetic identical materials, wherein the parts by weight of the four components in the composition are respectively as follows: 5-20 parts of cinnamic aldehyde, 15-35 parts of citral, 35-60 parts of thymol and 10-35 parts of salicylaldehyde. The composition has the advantages that: the drawing materials are natural, safe and non-toxic; and the volatile essential oil components are easy to diffuse; and the gas of the volatile essential oil is used for fumigating and killing to ensure that the composition needs not be in direct contact with grains and only needs to be put at a corner of a warehouse or a closed container to play a role in efficiently killing the grain aspergillus flavus.

The invention discloses a silver-containing silicon-based mesoporous antibacterial agent and a preparation method thereof. The method comprises the following steps: mixing structure-directing agent of polyethylene glycol-polypropylene glycol-polyethylene glycol block copolymer, deionized water and acid, adding silicon source and silver source, then heating, continuously stirring to obtain sol-gel, drying sol-gel in vacuum, then washing with ethanol, drying in vacuum; and roasting the product of vacuum drying in protective gas. The antibacterial active silver is added during the preparation process of the mesoporous material, so that the silver ion can be deposited on the hole wall of mesoporous, then a physical or chemical method is used to remove the structure-directing agent of mesoporous and finally the silver-containing mesoporous inorganic antibacterial agent is prepared. The antibacterial agent is characterized in that the content of the antibacterial active body is easy to control, the preparation method is easy, the antibacterial property is strong and stable, the antibacterial effect can last for long time, the color of the antibacterial agent is not easy to change, the antibacterial agent is nontoxic, etc. The antibacterial agent can be widely used in fields such as ceramics, plastics, textile, coatings, water treatment and the like.

Disclosed is an anhydrous lipstick comprising a combination of active ingredients comprising Portulaca pilosa extract, sunflower oil, jojoba esters, mango butter, and tocopherol and a dermatologically acceptable carrier comprising glyceryl behenate/eicosadioate.

The invention relates to crosslinked polyglutamic acid hydrogel and a preparation method thereof, wherein the crosslinked polyglutamic acid hydrogel is stable, uniform in dispersion and low in concentration. The preparation method comprises the following steps of firstly, adopting a high concentration crosslinking formula for preparing gamma-polyglutamic acid rubber blocks, then, adding a water-based solution for homogenizing and crushing the gamma-polyglutamic acid rubber blocks, and obtaining the crosslinked polyglutamic acid hydrogel which is stable, uniform in dispersion and low in concentration. The preparation method of the crosslinked polyglutamic acid hydrogel which is stable, uniform in dispersion and low in concentration is few in step, stable in product character and suitable for industrial production and application; by controlling the concentration of crosslinked polyglutamic acid in a product, series products with improved viscosity can be obtained, the products are prone to being hydrated so that the products can be uniformly applied to and dispersed on the skin surface, and no sticky or flaking phenomenon occurs to the skin surface.

The invention relates to an oven with a cover cap, and belongs to the technical field of food processing and domestic instant food processing. The oven is characterized in that an oven hearth consists of a lower semicircular cylinder which is arranged transversely and has an upward opening and two ends connected to a fixed semicircular wall, and an upper semicircular cylinder connected with a cylinder edge by a shaft; two ends of the oven hearth fixed at the edges inside the upper semicircular cylinder on the circumferential wall are provided with calking grooves along a semicircle, the calking grooves are embedded into the edges of an arc moving door at one-quarter opening of an upper semicircular cover, and the middle of the upper semicircular cylinder is provided with a dial thermometer for measuring temperature of the oven hearth; three racks are arranged in the oven hearth, namely, a bottom layer, an upper rack and a middle rack; a cylindrical oven body is arranged on a bracket; and the oven is provided with a chimney, an air door and a shelf. The oven has the advantages as follows: because barbecue is roasted closely, heat is not easy to diffuse, roasting strength can be adjusted, the oven not only improves roasting efficiency and does not pollute environment, but also heat food evenly, shortens roasting time, and can supply enough smudging roasted food.

The invention relates to a preparation method of graphdiyne. The preparation method comprises that 1, in a nitrogen or argon protective atmosphere, a reaction substrate 1,3,5-tripropargylbenzene and a catalyst are put into a reaction container, a solvent is added into the reaction container to dissolve the materials in the reaction container, and the solution undergoes a heating reaction, 2, in the reaction process in the step 1, the solution is subjected to vacuum pumping process multiple times so that a reaction side product 2-butyne is removed and a solvent is supplied to make up for a loss of the solvent, and 3, after the reaction, the reaction product is purified so that the product graphdiyne is obtained. Compared with the prior art, the preparation method has simple processes. The prepared graphdiyne has the uniform surface and a low oxidation degree and can stably exist in air.

The invention relates to a low-shrinkage high-strength polyester industrial yarn and a preparation method thereof. The preparation method comprises: carrying out solid phase condensation polymerization tackifying on a modified polyester, melting, metering, extruding, cooling, oiling, drawing, carrying out heat setting, and winding, wherein the unchanged longitudinal height is maintained during thecooling, the cross section area of the slow cooling chamber is increased while the plate surface temperature of the spinning plate is maintained by using the thermal insulation method, and the oil agent for oiling contains 67.30-85.58 wt% of crown ether. According to the present invention, the preparation method is simple; the material of the prepared low-shrinkage high-strength polyester industrial yarn is the modified polyester with the molecular chain including a terephthalic acid chain segment, an ethylene glycol chain segment and a diol chain segment having the branched chain, the fracture strength is more than or equal to 7.3 cN/dtex, and the dry heat shrinkage rates at the conditions comprising 177 DEG C, 10 min and 0.05 cN/dtex and the conditions comprising 190 DEG C, 15 min and 0.01 cN/dtex respectively are 1.8+/-0.5% and 3.5+/-0.5%.

The invention belongs to the technical field of mobile terminals, and discloses a mobile terminal and a method and a device for sequencing a telephone directory thereof. The method comprises the following steps of: when the mobile terminal uses a contact for communication, acquiring the identification of the contact; after the communication performed by using the contact through the mobile terminal is finished, updating the use times of the contact according to the identification of the contact and the current communication time; and sequencing the contacts in the telephone directory according to the updated use times and the updated communication time, wherein the contact with more use times and last communication time close to the current time is preferentially displayed. According to the method and the device, a user can quickly find the frequently-used contacts; and the method and the device accord with the preferential principle of frequent attention of the user, improve the use efficiency of the mobile terminal, increase the humanization of the mobile terminal, and are favorable for popularization of the mobile terminal.

A preparation method for wet acrylic fiber is characterized by including the following steps in turn: a, spinning and shaping; b, washing and drafting; c, oiling; d, drying; e, winding; f, shaping. Furthermore, compared with the prior art, the invention makes improvement on the shaping technique and post treatment technique through the specific design of a silk spray plate and selects proper spinning, shaping and post treatment condition technique parameters through a plurality of tests to improve the coagulation bath circulation amount, improve the adding amount and the drafting times of an oil agent and improve the winding door pressure. The acrylic fiber manufactured by the invention improves the shaping effect of the fiber.

A non-aqueous electrolyte secondary cell having superior high temperature-operation properties and excellent large current-discharge properties is provided. The non-aqueous electrolyte secondary cell has a positive electrode composed of a positive electrode collector and positive electrode active material layers formed thereon. A positive electrode active material contained in the above layer is formed of a first composite oxide and a second composite oxide mixed therewith. The first composite oxide is formed of grains of a first lithium transition metal composite oxide containing at least nickel as a transition metal and a cover layer formed on at least part of the surface of each of the grains for suppressing decomposition of an electrolyte caused by the first lithium transition metal composite oxide. The second composite oxide is composed of grains of a second lithium transition metal composite oxide.

The invention provides a preparation method of an aqueous sizing agent for carbon fibers, relates to a preparation method of a sizing agent, and solves the technical problem that the existing sizing agent is large in particle size and not suitable for being used under low concentration. The method includes preparing an epoxy emulsifier; and mixing the epoxy emulsifier with epoxy resin under a temperature of 40-70DEG C, and then adding in deionized water until phase transition to obtain the aqueous sizing agent for the carbon fibers, wherein the adding amount of the epoxy emulsifier is 2-3 times that of the epoxy resin. According to the method, the sizing agent with a particle size and with a main peak of 0.1mum is prepared under a phase inversion method, the smaller the particle size, the easier to spread on the surfaces of the carbon fibers, so that the fiber performances are improved.

The invention discloses a method for surface modification of a basalt fibre carrier for purifying water quality. The method comprises the following steps of: firstly roughening the surface of originally smoother basalt fibre by acid etching, wherein the rough surface is beneficial to attaching and fixing the microbes on the surface; and then forming an Si-OH group on the surface of basalt fibre through an advanced oxidation reaction to evidently increase oxygen-containing groups on the surface of basalt fibre, thereby enhancing the wetting property of the surface of basalt fibre; and then depositing Fe<3+> ions on the surface of basalt fibre carrier by using a cation deposition method, wherein the potential on the surface of carrier is boosted; the surface of carrier has positive change to accelerate the fixation of the microbes on the surface of fibre by utilizing electrostatic attraction; and modifying the surface of basalt fibre carrier to enable the surface to have excellent hydrophilic property and microbe loading property and to load more biomass weights, as well as to maintain higher microbial activity for a long time, thereby more efficiently removing the pollutants in the water body through a biological membrane method.

The invention discloses a method for preparing a Schiff base functionalized ordered mesoporous PMO material solid supported Cu(I) heterogeneous catalyst and application thereof in a Glaser organic reaction in an aqueous medium. The method comprises the following steps of: mixing 0.90 to 1.2g of amino-functionalized PMO with 15 to 25ml of ethanol and 0.8 to 1.2 mmol of 2-pyridylaldehyde solution; stirring the mixture for 12 to 18 hours at room temperature; then filtering and washing the mixture, performing vacuum drying and standing overnight to obtain an ordered mesoporous Schiff base functionalized PMO (Et); adding 0.40 to 0.60g of Schiff base-PMO (Et) into 12 to 18 ml of dimethyl sulfoxide solution which contains 0.1 to 0.3 mmol of CuI; stirring the mixture for 24 to 36 hours at the room temperature; filtering the solids and washing the solids by using the dimethyl sulfoxide and ethanol in turn; and finally performing vacuum drying on the product and standing overnight so as to obtain an ordered mesoporous organic metal copper heterogeneous catalyst. The catalyst has the advantages of organic group content, higher hydrophobic property, easy diffusion of an organic reactant in a pore channel, well contact with a catalytic active site, improvement of catalytic efficiency, ordered mesoporous structure, uniform pore diameter distribution, and large specific surface area.

The invention relates to a method for hydro-dearomatization in catalytic cracking of diesel. According to the invention, Ni and W are adopted as hydrogenation active metal components of a catalyst and modified Y molecular sieve, modified Beta molecular sieve, amorphous silica-alumina and alumina are adopted as carriers of the catalyst, wherein the average crystal size of the modified Y molecular sieve is 100-400nm, the mole ratio of SiO2/Al2O3 is 5-40:1; the relative crystallinity is greater than 90% and the specific surface area is 700-1000m<2>/g; the average crystal size of the modified Beta molecular sieve is 50-200nm, the mole ratio of SiO2/Al2O3 is 50-200:1; the relative crystallinity is greater than 85% and the specific surface area is 700-900m<2>/g. When the method is adopted to process inferior diesel fraction, the desulfurization rate and the denitrification rate are up to more than 97.5%, the dearomatization rate is up to more than 55% and the diesel fraction yield is up to more than 98wt%.

The utility model relates to a gas-liquid separating bushing evaporator, belonging to the technical field of thermal equipment, which comprises an outer sleeve tube (12) and a plurality of torsion inner tube bundles (11) helically distributed in the outer sleeve tube as the basic heat exchanging part. One end of the inner pipe is an inlet (1) for heating liquid , while the other end is an outlet for heating liquid; the inlet (9) for evaporated liquid is arranged at the bottom of the spiral outer sleeve tube (12), and connected with a liquid phase return pipe (8) for residual evaporated liquid; a gas-collecting exhaust port (5) is communicated with a gas-collecting exhaust pipe (4) at the same location of each layer of spiral jacket; the exhaust port (5) is arranged at the upper reach of the interface of the evaporated liquid inlet (6) and the outer sleeve tube (12) to divide the whole heat exchanging part into a spiral heat exchanging section (10) and a spiral overheating section (3). The utility model also comprises a vertical type S-shaped gas-liquid separating casing evaporator. The utility model has the advantages of simple processing, better overall performance of bushing evaporative heat exchanger, less costs of the manufacture and operation of the evaporator.

This invention relates to the improvement of cold or hot roll casting steel semisteel compound roll collar and its preparation method. Its characteristic is the ingredient of the semisteel working lining, such as C 1.80-2.20%, Si 0.50-0.80%, Mn 0.80-1.10%, Ni 1.2-1.7%, Cr 2.80-3.20%, Mo 0.4-0.6%, P<=0.03% and S<=0.03%, the other is Fe and some residual element. When it is centrifugally cast, it should be separately controlled the steel liquid temperature of working lining at 80-100DEG C and the steel liquid temperature of inner casting lining is 90-110DEG C higher than the measurement of the liquid linear temperature. As the surface temperature of working lining is 50-80DEG C lower than the measurement of the liquid linear temperature, we can cast the inner lining. The semisteel gets by this way contained high carbon and alloy, and its basic composition mainly are bainite, carbonide and pearlite, so it has better hardness, toughness and abradability. The yield of millimeter steel can improve more than twice, and the working lining can combine fine with inner metallurgy.