195results about How to "Less foam" patented technology

The present invention provides a novel method for culturing cells as well as a novel method for producing a recombinant protein by culturing cells at large scale (up to 1,500 L nominal volume and 750 L working volume), whereby an inflated bag provides a sterile, disposable cultivation chamber. The inflated bag is partially filled with liquid cultivation media and cells, and placed into a containment vessel. The containment vessel is positioned onto an orbitally shaken platform. The orbital shaking moves the containment vessel and thus the bag and induces thereby motion to the liquid contained therein (“shake mixing”). This motion (caused by orbital shaking) induces a dynamic force field that ensures cell suspension, bulk mixing, and oxygen transfer from the liquid surface to the respiring cells without damaging shear or foam generation.

Disclosed are compositions comprising a hydrophobic active agent, a polymer and a reconstitution enhancing agent. Reconstitution of the lyophilized form of the compositions takes less time than in the absence of the enhancing agent.

The invention provides sterilizing bath lotion for furry pets, which comprises surfactant, humectant, hair care agent, chelating agent, bactericide, thickening agent and essence, wherein the bactericide is one of stable liquid chlorine dioxide, stable solid chlorine dioxide or sodium chlorite. The sterilizing bath lotion of the invention overcomes the defects of the existing product or the prior art, and really realizes synchronous completion of three effects of removing dirt, caring hair and quickly sterilizing. The sterilizing bath lotion has the advantages of mild property, no any stimulation to the fur of animals and the skin of people, good dirt removing and sterilizing effects, low foam, easy cleaning, no residue, safety and environment friendliness, and meanwhile plays a role in caring the fur of the animals so that the fur of the washed pet does not knot; and the sterilizing bath lotion is glossy, flexible and easy to card, and is quite suitable for the daily care of the furry pets.

The invention provides a flyash geopolymer based porous material and a preparation process thereof. The porous material comprises the following components in parts by weight: 60-100 parts of flyash, 40-70 parts of alkali activator, 0-40 parts of admixtures, 0-5 parts of glass fibers, 2-8 parts of physical foaming agents and 0-0.8 part of chemical activators, wherein the alkali activator is alkaline mixed liquor containing various ions and comprises industrial water glass, sodium hydroxide, water, polyethylene glycol and sodium phosphate; the admixtures refer to levigated metakaolin, silicon micropowder and calcined coal gangue; the physical foaming agents include expired shampoo, an anionic surfactant sodium dodecyl sulfate (SDS), fatty alcohol polyoxyethylene ether sodium sulfate (AES) and disodium fatty alcohol polyoxyethylene ether monosulfosuccinate (AESS); the chemical foaming agents include aluminium powder, hydrogen peroxide, and the like. The porous material has adjustable volume density, fine and uniform pore diameter, low heat conductivity, high strength, the same life as buildings and good fireproof performance.

The invention provides a metal surface degreasing agent, which aims to solve the problems that the conventional degreasing agent cannot completely remove fouling on the metal surface, and has higher corrosion on materials; and the treated metal surface has adverse influence on subsequent phosphorization and passivation processes. The degreasing agent comprises the following components in percentage by weight: 5 to 25 percent of common alkali, 10 to 15 percent of buffering agent and auxiliary agent, 3 to 5 percent of surfactant, 0.5 to 1 percent of defoaming agent and foam inhibitor, and the balance of water, wherein the common alkali is one or more of sodium hydroxide or potassium hydroxide; the buffering agent and the auxiliary agent are one or more of sodium silicate, sodium tripolyphosphate and potassium permanganate; the surfactant is one or more of BJJ001, BJJ003 and AEC; the defoaming agent and the foam inhibitor are one or more of organic silicon and organic phosphate. The metal surface degreasing agent has the characteristics of high efficiency, safety, environmental protection, low foam and no corrosion on steel plates, zinc, aluminum, copper, plastic or rubber.

The present invention relates to an insulating, environment-friendly coating for non-oriented electrical steel, which belongs to the technical field of electrical steel coatings. The coating contains the following ingredients calculated according to the dry weights of the substances: 20 percent to 60 percent of dihydric phosphate; 20 percent to 40 percent of acrylate emulsion; 2 percent to 20 percent of boracic acid; 0.5 percent to 15 percent of silicasol; 0 percent to 5 percent of diethylene glycol monobutyl ether; all are weight percentages. The coating of the present invention is an environment-friendly coating which does not contain chrome; the coating, the surface of which is shiny and uniform, has good insulating property, adhesive property, rust-resisting property and heat-resisting property; moreover, the coating has good wetting property and is characterized by convenient coating and little foam amount.

The invention discloses a lubricating agent for superfine copper wire drawing. The lubricating agent comprises the following components in parts by mass: 5-25 parts of lubrication base oil, 10-30 parts of an emulsifying agent, 1-5 parts of a surface active agent, 1-10 parts of an antirust agent, 1-5 parts of an extreme pressure antiwear additive, 1-5 parts of a thickening agent, 5-25 parts of an alkali retention agent, 1-5 parts of a bactericide, 0.1 part of a defoaming agent and 30-50 parts of water. The lubricating agent for superfine copper wire drawing has good oxidation resisting, cooling, cleaning, lubricating, rust preventing, hard water resisting and copper soap dispersing properties, and is particularly suitable for superfine copper wire drawing.

The invention discloses an acid scouring agent and a preparation method thereof. The acid scouring agent comprises a multivariate acidic copolymer, polyvinyl pyrrolidone PVP and sodium gluconate. The scouring agent does not contain phosphorus, alkylphenol ethoxylates and harmful solvents and is degradable; and at the same time, the scouring agent has the characteristics of a little foam, high chelation value and high alkali neutralizing capacity. The scouring agent can be used for scouring cellulose fibers after dyeing, can simplify the traditional process and contributes to energy conservation and emission reduction.

The invention provides a grease composition comprising a stable dispersion of a metal hydroxide with a number average particle size in the range 20 nanometres to 2 micrometres, a surfactant with a HLB of less than 10, a mono- or poly-carboxylic acid, and an oil of lubricating viscosity. The method of preparing a grease composition is also disclosed with benefits including a reduction in reaction time, amount of foam produced and environmental hazards.

Aqueous concentrates of non-toxic corrosion inhibitors, preferably storage-stable, useful in acidic cleaning solutions for cleaning the surfaces of metal that contacts food or potable water, the concentrates comprising at least one polymer, which may be protein-derived or synthetic; at least one iodine ion providing compound; an acidifier; and optionally, at least one anionic, nonionic or amphoteric surfactant; at least one coupling agent; and a pH adjuster; the concentrates being substantially free of nonylphenol derivatives and compounds containing elemental iodine and providing an improved acid inhibition and less foaming than similar compositions comprising nonylphenol derivatives and elemental iodine when mixed with aqueous acidic cleaners; acidic solutions prepared therefrom; and methods of their use.

The invention discloses a tecovirimat dry suspension and a preparation method thereof. The tecovirimat dry suspension provided by the invention comprises the following components in parts by mass: 20 to 30 parts of monoclinic crystal micro-powder of tecovirimat monohydrate, 40 to 80 parts of filler, 5 to 10 parts of suspending aid, and 1 to 5 parts of wetting agent, wherein, in the monoclinic crystal micro-powder of tecovirimat monohydrate, the space group of a monoclinic system is C2 / c, cell parameters are as follows: a is 28.724 (2), b is 10.533 (1), c is 12.902 (1) tenthmeter and beta is 112.18 (1) degrees, the cell volume V is 3614.7 (6) cubic tenthmeter, and the number Z of molecules in unit cell is 8. The dry suspension solid powder has good liquidity, can be quickly transformed into a uniform and stable suspension after being mixed with water, has less foam, low deposition speed and excellent redispersibility, and is convenient for administration of patients. Animal experimentsprove that: the preparation has long half-life period, high blood concentration and strong mousepox virus resisting activity.

The invention belongs to the technical field of electroslag metallurgy, in particular a preparation and use process for electroslag remelting slag. The process comprises the following steps: firstly preparing fluorite powder, alumina powder and lime blocks in a proportion of (5-30wt%): (30-50wt%): (30-50wt%) into pre-melted slag; and during slagging, firstly adding the fluorite powder, wherein after the fluorite powder is processed, a slag bath is available in a crystallizer; and alternately and slowly adding the alumina powder and lime. The invention provides the preparation and use process for electroslag remelting slag for synthesizing slag charge by using self-smelted pre-melted slag, wherein the process requirement is satisfied and the cost is controlled.

The present invention discloses a complex oilfield water flooding bactericide. The complex oilfield water flooding bactericide is prepared from the following raw materials by weight: 25-35 parts of saccharide gemini quaternary ammonium salt, 2-5 parts of alkyl glucoside, 10-15 parts of quaternary phosphonium salt, 4-10 parts of isothiazolinone, and 5-10 parts of dithiocyano-methane. The bactericide has strong bactericidal effect, can effectively remove the sulfate-reducing bacteria, iron bacteria and saprophytes in water, and avoid corrosion and clogging of pipelines and equipment caused by bacteria, and has the advantages of simple ingredients, easy preparation, fastness, efficiency, low cost, high sterilization rate, low usage and little side effects.

The invention provides a method for cleaning an optical lens. Based on concentration percentage, the method is characterized by comprising the following steps of: 1) preparing strong alkali and an alkali-resistant surfactant; 2) preparing weak alkali and a surfactant which can work in the weak alkali; and 3) cleaning the lens. The method for cleaning the optical lens has characteristics of high washing force and low foaming by using the strong penetration force and the biodegradable characteristic of heterogeneous alcohol polyoxyethylene ether and secondary alcohol polyoxyethylene ether in combination with an organic solvent with high boiling point and alkali substances, is suitable for washing a large mass of lenses, and simultaneously does not swell the lenses. The strong alkali surfactant is used for dissolving substances of organics and releasing agents on the surfaces of the lenses; and the weak alkali surfactant is used for removing micro residues from the surfaces of the lenses by the superstrong penetration force.

The invention relates to a tower-top cyclone purification method and a device for a recycling hydrogen desulfurization tower. The invention provides a tower-top cyclone purification method for a recycling hydrogen desulfurization tower, which comprises the following steps: carrying out a countercurrent contact reaction between sulfur-containing mixed gas entering the recycling hydrogen desulfurization tower and absorption liquid in the recycling hydrogen desulfurization tower, sequentially performing countercurrent absorption and cyclone absorption on the sulfur-containing mixed gas so as to remove sulfur in the mixed gas, and obtaining the mixed gas with the absorption liquid; and performing gas-liquid cyclone separation on the mixed gas with the absorption liquid so as to obtain the purified mixed gas. The invention also provides a tower-top cyclone purifying device for the recycling hydrogen desulfurization tower.

The invention discloses a flow-separation back-mixing-free spraying tower disc. The tower disc is formed by combining an upper-layer tower disc and a lower-layer tower disc; and each tower disc comprises liquid descending grooves, liquid descending pipes, liquid accepting grooves, three-dimensional spraying and mass transferring units and liquid guide grooves. The flow-separation back-mixing-free spraying tower disc is characterized in that the long-strip-shaped liquid accepting grooves are formed in the horizontal position of the center of the tower disc; each long-strip-shaped liquid descending groove is arranged between each two adjacent liquid accepting grooves; liquid descending openings are designed in the bottoms of the liquid descending grooves; each liquid descending opening corresponds to one liquid descending pipe, and each liquid descending pipe stretches and is fixed in each liquid descending groove; the three-dimensional spraying and mass transferring units are arranged among the liquid descending grooves and the liquid accepting grooves; the liquid guide grooves, which are flow-separation-plate-type liquid guide grooves, are arranged on the peripheries of cap covers of the three-dimensional spraying and mass transferring units; one liquid guide groove corresponds to one three-dimensional spraying and mass transferring unit; the shapes and the structures of the upper and lower tower discs are the same basically; and one set of liquid descending pipes on the lower edge of one liquid descending groove of the upper-layer tower disc correspond to one liquid accepting groove of the lower-layer tower disc in a staggered manner, so that the upper-layer tower disc and the lower-layer tower disc are combined into the double-layer flow-separation back-mixing-free spraying tower disc.

Object is to provide an etching solution which generates less foam and can etch copper or copper alloy at high selectivity when used in a step of etching copper or copper alloy in an electronic substrate having both of copper or copper alloy and nickel.The etching solution to be used in a step of selectively etching copper or copper alloy in an electronic substrate having both of copper or copper alloy and nickel has, as essential components thereof, (A) a linear alkanolamine, (B) a chelating agent having an acid group in the molecule thereof, and (C) hydrogen peroxide.

The invention provides a method for producing pleocidin by adopting saccharopolyspora spinosa through fermentation. According to the method, saccharopolyspora spinosa Z68 is adopted as a fermentation strain, an improved fermentation medium is adopted, fermentation cultivation is carried out under the conditions that the temperature is 26-30 DEG C, the rotation speed is 150-220 rpm, the compression-ventilation ratio is 1 to (0.3-0.7), the pot pressure is 0.03-0.04 MPa, and the dissolved oxygen is controlled to be 40% or above, and pleocidin is extracted from the fermentation liquid. According to the method provided by the invention, staring from the physicochemical properties of the fermentation medium of saccharopolyspora spinosa, the fermentation medium with stable yield of pleocidin and little foaming amount, and a material supplementation method are provided. The soybean meal / soybean cake powder in the fermentation medium are replaced by high-temperature soybean cake powder, and the experiment proves that in the fermentation process, the high-temperature soybean cake powder has small possibility of foaming compared with the soybean meal and low-temperature soybean cake powder, while part of fat not available in the high-temperature soybean cake powder but available in the soybean meal and the low-temperature soybean cake powder can be added from the outside in the middle and later periods of fermentation, and the adding at the time can achieve the effect of eliminating foams and solve the problem that the carbon source is insufficient in the later period.

The invention discloses a heat transfer medium special for a solar heat pump and a preparation method thereof, which belong to renewable energy source utilization technology. The heat transfer medium is prepared by mixing, heating and stirring ethylene glycol, ionized water, triethanolamine, sodium dihydrogen phosphate, sodium benzoate, phosphoric acid, tolyltriazole styrene, borax, a defoaming agent, an inhibitor and a color concentrate in different weight ratios. The transfer medium has the characteristics of low freezing point, freeze prevention, high low-temperature flowing property, high boiling point, low evaporation loss, high specific heat, high heat conductivity, less foam, high anti-foam performance, and good anti-rust protection and descaling functions for metal pipelines.

The invention provides a fixing structure of a middle beam of a refrigerator. The fixing structure comprises first fixing holes, clamping holes, a reinforcing piece and fixing pieces, wherein the fixing holes are formed at the two ends of the middle beam; the clamping holes are formed at the parts, corresponding to the first fixing holes, of the inner container of the refrigerator, and the shape of each clamping hole is different from that of each fixing hole; the reinforcing piece comprises clamping parts clamped with the clamping holes; the clamping parts are provided with second fixing holes; and the fixing pieces penetrate through the first fixing holes and the second fixing holes. The invention also provides a refrigerator comprising the middle beam fixing structure which is used for installing the middle beam on a refrigerator body. The manufacturing method of the refrigerator comprises the following steps: installing the middle beam on the refrigerator body by adopting the middle beam fixing structure; and then foaming the refrigerator body. According to the invention, the middle beam can be installed by adopting the middle beam fixing structure before the refrigerator body is foamed, thereby preventing the damage of a foaming mould in the foaming technology on an anti-dewing pipe and reducing the subsequent middle beam installation inconvenience brought by deformation due to foaming.

The invention discloses a microcellular foam thermoplastic elastomer for a high-speed railway damping base plate. The microcellular foam thermoplastic elastomer is prepared from the following raw materials in parts by weight: 20-80 parts of ethylene propylene diene rubber, 20-80 parts of polypropylene, 0.1-10 parts of a crosslinking agent, 0.3-60 parts of a crosslinking catalyst, 0.5-3 parts of a microcellular foaming agent and 1-10 parts of an aid. A molded product in the invention is a closed-pore microcellular foam elastomer product of which the pore diameter is dozens of microns, and has the advantages of smooth and even appearance, independent air bubbles, small foams and no residue of chemical substances. Meanwhile, the weight of the molded product can be reduced by 10-40 percent, absorbed energy can be increased by 3-5 times under the action of impact, and original crack tips can be passivated, so that the toughness of a material is enhanced, fatigue life is prolonged, and the requirements of physical property, elasticity, kinetic energy absorption and the like on the high-speed railway damping base plate can be met.

Heat-stable flavor components, which can be used in cheese flavoring systems to prepare food products, including cheeses, having desired flavor profiles. The flavoring components are obtained by addition of flavor-generating whey source as part of a fermentation process in which the whey source provides a source of flavor, and a lipid source is added which traps and stabilizes, and thus preserves, flavor compounds in the fermented mixture during a subsequent heat treatment used for culture inactivation. Methods of making and using these flavoring components and flavoring systems in food products, such as cheese products, also are provided.

The invention relates to a neutral low-foam liquid laundry detergent containing natural grease. The natural low-foam liquid laundry detergent comprises the following main active components, by mass, 10-25 parts of a surfactant, 1-9 parts of natural grease, 0.3-3 parts of an alkali, 1-5 parts of a neutralizing acid, 0.1-1 part of a chelating agent, 1-5 parts of an anti-redeposition agent and 0.5-5 parts of a thickening agent. The neutral low-foam liquid laundry detergent containing natural grease has the characteristics of foam breaking and inhibiting effects, cloth protection, neutrality, no irradiation, and easy rinsing.

The invention discloses a cleaning agent used for solar grade silicon wafers and a preparing method thereof. One hundred parts of the cleaning agents comprise, by weight, 2 parts to 5 parts of inorganic base, 10 parts to 20 parts of surface active agents, 1 part to 5 parts of corrosion inhibitors, 1 part to 5 parts of complex agents, 0.1 part to 0.5 part of assistants and the balance water. The preparing method of the cleaning agent includes the following steps: the water and the surface active agents are firstly mixed, the inorganic base is slowly added in a multi-time and small-amount mode under the condition that stirring is carried out at the rotating speed of 300-500 turns per minute, stirring is continuously carried out for 10-20 minutes, the complex agents, the corrosion inhibitors and the assistants are finally added and stirred to be completely dissolved, and the cleaning agent is obtained. By means of the cleaning agent used for the solar grade silicon wafers, metal ions and various organic pollutants on the surfaces of the silicon wafers can be effectively removed, damage to the silicon wafers is small, the amount of cleaning foam is small, and the cleaning efficiency is high.

The invention relates to an environment-friendly water-based cleaning agent, which includes: a non-ionic surfactant, organic alcohol, alkyl glycoside, organic sodium carboxylate, a corrosion inhibition additive, and water. The cleaning agent is suitable for precise cleaning on products made of stainless steel, plastic and glass and the like, can be completely dissolved, is residual-free, is low-foam and is easy to rinse, can remove oil dirt, dust and other dirt on the products, and is anti-static and has strong cleaning function and good cleaning effect. The cleaning agent is free of controlled harmful substances such as heavy metals, phosphorus and nitrites, etc, and also has corrosion inhibition effect on metals; biodegradability rate reaches 100%. The products cleaned with the cleaningagent hardly have residual dirt and change on glossiness; meanwhile, the products have service life. The cleaning agent is green, environment-friendly and toxic-free, is harmless, and is free of influence on body health and pollution on environment.

The invention discloses a kitchen wet wipe and a preparation method of kitchen wet wipe impregnation liquid. The kitchen wet wipe is composed of a wet wipe carrier and the kitchen wet wipe impregnation liquid. The kitchen wet wipe impregnation liquid is composed of the following components, by weight: 87.7-99.5% of deionized water, 0.01-1.5% of EDTA-2Na, 0.05-2%of alkyl glycoside APG, 0.1-3% of an anionic surfactant, 0.01-2% of an essence, 0.02-2% of sodium citrate, 0.1-2% of a preservative, and 0.01-1% of hydrogenated castor oil. The pH value of the kitchen wet wipe impregnation liquid is 5-8. According to the kitchen wet wipe, pearl-grain nonwoven fabric is adopted as a substrate. The components of the wet wipe impregnation liquid provide a synergistic effect. The wet wipe has the excellent performances of high cleaning capacity, effective oil-stain-removing and deodorizing functions, no irritation, and low foam. With the wet wipe, kitchenware surface oil stains can be rapidly removed, and no wiping mark is left.