40results about How to "Good emulsifying performance" patented technology

The invention relates to a long-acting emulsion-type antirust fluid used for metal rust prevention. Every 100 parts of the antirust fluid include the following components according to parts by weight: 3-15 oil soluble surfactant, 1-10 alcohol ether type couplant, 1-10 oily-type rust preventive and the balance base oil, wherein the oil soluble surfactant is any one of petroleum sodium sulfonate with molecular weight ranging from 300 to 800, sodium heavy alkylbenzene sulfonate and sodium sulfanilate, the alcohol ether type couplant is any one of ethyl alcohol, ethyl ether, butyl ether, diethylene glycol monobutyl ether, diethylene glycol propyl ether, butyl glycol ether and ethylene glycol propyl ether, the oily-type rust preventive is any one of barium petroleum sulfonate, dinonyl naphthalenesulfonic acid barium salt and barium soap of petroleum ester oxide, and the base oil is any one of cycloalkyl base oil and paraffin base oil. The long-acting emulsion-type antirust fluid has the advantages of meeting the demands of short-term rust prevention of metal and having lower using cost.

The invention discloses an emulsifying agent for industrial explosive and a preparation method of the emulsifying agent. A macromolecule emulsifying agent with a good emulsifying property and high emulsifying stability is obtained by using a lactonized product of polyolefin anhydride as an acylating agent to react with one or a plurality of alkylol amines, polyene polyamines or polyhydric alcohols. An emulsion explosive and a powdery emulsion explosive prepared by the macromolecule emulsifying agent have the advantages of high explosive property and long storage time.

The invention relates to a preparation method of a self-microemulsion nanometer composition of ganodenic acid extract; the self-microemulsion nanometer composition takes ganodenic acid extract as crude drug, and the mixture of surface active agent, cosurfactant, and oil phase is adopted as drug carrier; the preparation method is characterized in that: the components are as follows by weight part: 10 parts of ganodenic acid extracts, 50-400 parts of surface active agents, 100-800 parts of cosurfactants, and 15 to 600 parts of oil phase; the ganodenic acid extract is total triterpenoids in ganoderma lucidum which is obtained by extracting lucid ganoderma fruiting body with a supercritical CO2 extracting method. In the method, the total triterpenoids in ganoderma lucidum, which is an insolubility drug, is prepared into self-microemulsion formulation, so as to improve the dissolution rate of the drug, promote the drug adsorption and be beneficial to improving the bio-availability; in addition, the drug can keep a dissolution state in intestine so as to better to permeate through cell membranes dispersedly, thereby improving the drug effect of the drug and enhancing the in-vivo anti-tumor effect.

The invention relates to an emulsifier for an emulsion explosive and a preparation method for the emulsifier. The emulsifier is a poly-alkyl carboxylic acid polyglycerol ester-type emulsifier obtained by performing esterification on poly-alkyl succinic anhydride and polyglycerol, wherein the component of the poly-alkyl succinic anhydride is 500-3500, and the degree of polymerization of the polyglycerol is 2-12. The emulsifier is good in emulsifying property. When the emulsion explosive is prepared, an emulsion can be easily formed, and the storage stability of the emulsion explosive is improved. The emulsifier is suitable for preparing the emulsion explosive with a longer storage time.

The invention belongs to field of daily necessities and particularly relates to a traditional Chinese medicine composition capable of removing miliaria and relieving itch and a preparation method thereof. The traditional Chinese medicine composition comprises stemona root, artemisia leaves, flavescent sophora root, phellodendron bark, mint, borneol powder and chlorhexidine acetate. The invention also provides a lotion which comprises the traditional Chinese medicine composition, a solubilizer and water. The traditional Chinese medicine composition provided by the invention is capable of completely removing miliaria and relieving itch after being used for seven days; the effective mosquito-repelling time of the traditional Chinese medicine composition is as long as 7.5 hours, and the traditional Chinese medicine composition has obvious effects of removing miliaria and relieving itch, and repelling mosquitos. The invention also provides a preparation method. According to the method, normal-pressure forward and reverse currents are combined with high-frequency high-voltage current to extract medicinal herbs; by virtue of combining pretreatment based on normal-pressure forward and reverse currents with high-frequency current oscillation, effective ingredients are dissolved out, so that the extraction temperature is low, effective ingredient damage caused by high temperature can be reduced, furthermore, the extraction yield is high, the extraction time is short, the cost is low and the preparation method has favorable application prospect.

The invention relates to an amphoteric reaction-type surfactant and a preparation method thereof. Specifically, the amphoteric reaction-type surfactant is a polymerizable surfactant having a good emulsification capability and belongs to the technical field of fine chemical engineering. The preparation method of the amphoteric reaction-type surfactant comprises the following steps that maleic anhydride and N,N-dimethyl-1,3-propanediamine undergo a reaction to produce an intermediate of N-(3-dimethylaminopropyl)maleamic acid; the intermediate of N-(3-dimethylaminopropyl)maleamic acid sequentially reacts with long-chain alkyl bromide; and the reaction products obtained by the previous step are subjected to post-treatment to form the amphoteric reaction-type surfactant. The preparation method provided by the invention adopts a neutralization reaction-quaternization reaction one-step synthesis method, wherein the neutralization reaction-quaternization reaction one-step synthesis method is characterized in that neutralization conditions are controlled in appropriate ranges; and after a neutralization reaction, a quaternization reaction is directly caused without separation and purification processes. Therefore, the preparation method provided by the invention can reduce a material loss produced in neutralization, time spent in neutralized product purification and reagents used in the neutralized product purification.

The invention relates to an animal feed additive, i.e. a composite grease emulsifying agent for a coated feed, and a preparation method thereof. The composite grease emulsifying agent for the coated feed comprises the following components in raw material ratio in percentage by weight: 10 percent to 30 percent of glyceryl monostearate, 10 percent to 30 percent of sucrose monolaurate, 5 percent to 20 percent of sorbitol anhydride monolaurate, 5 percent to 10 percent of glycerol monolaurate, 20 percent to 50 percent of polyethylene glycol and 20 percent to 50 percent of silicon dioxide. The preparation process of the grease emulsifying agent comprises the following steps of: firstly, carrying out heat preservation after heating and melting high HLB (Hydrophile-Lipophile Balance) value raw materials; adding silicon dioxide to adsorb to form fine particles; and then dissolving low HLB value raw materials and polyethylene glycol by an organic solvent, uniformly spraying the solution on the fine particles to obtain a finished product. Four food emulsifying agents with different HLB values, which are selected by the invention, are processed by scientific compatibility, are suitable for emulsifying various greases in the feed, have stable emulsifying effects and can keep the state of not breaking emulsion for a long time; after being subjected to coating processing, all of four emulsifying agent ingredients can tolerate high temperature treatment and are suitable for pelletizing processing of the feed.

Provided is a conditioning formulation, which preferably includes one or more bis-alkoxy-terminated glycol-functionalized aminosilicones, one or more non-functionalized aminosilicones, one or more fatty alcohols, one or more alkyl quaternary ammonium salts, and water. Also provided is a method of conditioning keratinous fibers (e.g., hair), which includes applying to the keratinous fibers an effective amount of the formulation of the present invention and, optionally, removing (e.g., rinsing) at least a portion of the formulation therefrom.

The invention relates to a preparation method of an automobile filter paper emulsion. The method includes the steps that firstly, a polymeric emulsifier is prepared, wherein a mixture of soft monomers, water-soluble dispersing monomers and water-soluble crosslinking monomers is added into an isopropanol solvent at the stirring speed of 200-1000 r / min, the temperature is adjusted to be 50-90 DEG C,an oil-soluble initiator accounting for 0.1%-0.5% of the total monomer mass is added, a heat-preserved reaction is carried out for 120-300 min, preparation is completed, the solvent is distilled offunder high-temperature and vacuum conditions, and a 10% aqueous solution is prepared; secondly, the polymeric emulsifier aqueous solution prepared in the first step is heated to 70-90 DEG C, and two types of blending monomers and an aqueous initiator are dropwise added; thirdly, after the reaction is finished, the temperature is decreased to 60-70 DEG C, a redox system is added into the system tocarry out monomer removal, then the pH value is adjusted, and finally filtration is carried out for discharging. The emulsion has the advantages of being small in particle size, good in chemical and mechanical property, excellent in emulsifying property and film-forming property, high in crosslinking degree and the like, and the waterproof property and mechanical strength after film formation of the filter paper emulsion are greatly improved.

The invention provides a preparation method of instant yolk powder. The method comprises the following steps of: (a) mechanically dispersing yolk solution; (b) adding phospholipase D to the yolk solution, wherein the weight measurement ratio (g / ml) of yolk solution to phospholipase D is 100:(0.01-0.05); and (c) carrying out drying treatment. The preparation method has the beneficial effects that by adding the phospholipase to hydrolyze phospholipid in the yolk to form lysophospholipid, the emulsion stability and emulsion heat stability of the yolk powder are improved; the treated yolk solution is subjected to spray drying to prepare the yolk powder with good solubility and good emulsion stability; and after the granulation process, the solubility, dispersibility and fluidity of the yolk powder are enhanced.

A graft-modified propylene.α-olefin copolymer (A) is obtained by graft-reacting a polar monomer onto a propylene.α-olefin copolymer (a) including 50 to 90 mol % of propylene-derived structural units (C3) and 10 to 50 mol % of C4-8 α-olefin-derived structural units (Cα) (wherein the total of the structural units C3 and Cα is 100 mol %), and satisfies the following requirements (i) to (iv) at the same time: (i) the amount of the polar monomer grafted is 0.4 to 1.5 wt %, (ii) the content of the polar monomer is not more than 1000 ppm, (iii) the content of a gel insoluble in xylene at 140° C. is not more than 2.5 wt %, and (iv) the content of a volatile hydrocarbon compound is not more than 10 ppm.

The invention discloses a novel tall oil asphalt emulsifier which is composed of, by weight, 20-25 parts of tall oil, 10-12 parts of mixture of halohexadecane and octadecane, 10-12 parts of mixture of epoxy hexadecane and epoxy octadecane, 15-20 parts of polyethylene polyamine, 5-10 parts of epichlorohydrin, 5-10 parts of trimethylamine dodecyl alcohol, 5-8 parts of ethylenediamine and 3-8 parts of auxiliary. The novel tall oil asphalt emulsifier is high in storage stability, excellent in emulsifying performance and high in reusability for various base materials.

The invention discloses an emulsion easily absorbed by the skin and a production process thereof, and relates to the technical field of emulsion skin care products. The emulsion comprises: 0.01-3% ofan emulsifier, 0.5-30% of glycerin, 0.01-5% of hydroxyethylpiperazine ethane sulfonic acid, 0.01-0.2% of salicylic acid, 0.21-3% of a skin conditioning agent, 0.01-1% of a retinol derivative, 0.01-1%of diethylhexyl syringylmalonate, 2-30% of an emollient, 0.01-1% of Butyrospermum parkii (Shea butter) unsaponifiable matters, 0.01-5% of a honey extract, 0.01-2% of hydrolyzed glycosaminoglycan, 0.01-0.5% of a preservative, and the balance water, wherein the emulsifier comprises at least one of sodium surfactin and inulin lauryl carbamate, the skin conditioning agent comprises at least one of cholesterol hydroxystearate, ceramide 3, and tocopheryl acetate, and the emollient comprises at least two of hexyldecyl myristoyl methylaminopropionate, olive fruit oil, and decanoyl / octanoyl-glycerides.The emulsion in the invention has the advantages of being easily absorbed by the skin and having relatively good moisture retention and moisturizing effects on the skin.

The invention provides an emulsion explosive permissible in a grade-three coal mine. The emulsion explosive is prepared from the following components: ammonium nitrate, sodium nitrate, water, sodium chloride, microcrystalline wax, a continuous phase, an emulsifier and a sensitizing agent. With aqueous solutions of oxidizing agents like ammonium nitrate and a flame eliminating agent as dispersion phases and a special hydrocarbon (such as diesel fuel fraction, vacuum distillate oil, pressure-reduced cerate, residuum cerate, light deasphalted oil and heavy deasphalted oil) as a continuous phase, the emulsion explosive is prepared by carrying out emulsification under the action of a surfactant (an emulsifier) for formation of water-in-oil type emulsion colloid and then carrying out chemical sensitization. The emulsion explosive has good explosion performance, good security, small amount of fume, hard and non-sticky body, good water resistance, and small changing amplitude of indexes before an expriation data. The emulsion explosive is applicable to explosion of a high-gas mine, a high-gas area in a low-gas mine and a working face with the dangers of coal (rock) and gas outburst.

The invention relates to a drawing oil, specifically to a drawing oil containing lecithin. The drawing oil is prepared from the following raw materials by weight: 80 to 100 parts of coconut oil, 60 to 80 parts of fluorinated silicone oil, 0.01 to 0.02 part of polyvinylpyrrolidone, 10 to 12 parts of isooctyl oleate, 8 to 10 parts of lecithin, 0.2 to 0.3 part of gallic acid, 2 to 3 parts of glycerin, 0.5 to 0.6 part of zinc naphthenate, 0.4 to 0.5 part of nonylphenol ethoxylate, 0.5 to 1 part of chlorinated paraffin and 2 to 3 parts of an auxiliary agent. According to the invention, temperature-resistant fluorinated silicone oil is added into base oil of the drawing oil, nontoxic and innocuous lecithin is used as an emulsifier, so a good emulsification effect is obtained; through combination of fluorinated silicone oil, lecithin and other additives, the drawing oil provided by the invention has excellent extreme pressure wear resistance and high temperature lubrication performance, does not corrode wire rods in use, has appropriate viscosity, is easy to clean and is applicable to wire drawing and drawing process for a variety of metal materials.

The present invention relates to a fibrous starch with enhanced emulsifying capacity and emulsifying stability, and low-fat mayonnaise and margarine compositions using the same. More specifically, disclosed are fibrous starch which has an increased starch particle size and exhibits improved emulsifying capacity and emulsion stability, prepared by heat-treating starch at a temperature lower than a gelatinization temperature, phosphorylating the starch and further heat-treating the starch sample at a high temperature, and low-fat mayonnaise and margarine compositions in which the content of cooking oil is reduced by 50% or more by adding the fibrous starch with enhanced emulsifying capacity thereto.

The invention discloses water-in-oil type emulsified gasoline and a preparation method thereof. Span 80 and OP10 or Tween 80 are used as a compound emulsifier the hydrophile-lipophile balance (HLB) value of which is 9, and a long-chain alpha-olefin amphiphilic graft copolymer is used as a dispersant, wherein the preparation method of the long-chain alpha-olefin amphiphilic graft copolymer refers to 101157759A. The water-in-oil type emulsified gasoline comprises the following components in percentage by weight: 0.5-1 percent of long-chain alpha-olefin amphiphilic graft copolymer, 5-15 percent of compound emulsifier, 5-20 percent of water and the balance of gasoline. The preparation method comprises the steps of sequentially adding water, the compound emulsifier and the long-chain alpha-olefin amphiphilic graft copolymer in gasoline, and stirring the mixture for 5-10 minutes with a high-speed shearing and dispersing emulsifying machine under the rotate speed of 10,000 rpm. The emulsified gasoline provided in the invention is very stable, oil-water separation can not occur within 60 days when the emulsified gasoline is stored under 25 DEG C, oil-water separation can not occur within 5 days when the emulsified gasoline is stored under 40 DEG C, and oil-water separation can not occur within at least 130 minutes when the emulsified gasoline is centrifuged under the rotate speed of 15,000 rpm. The water-in-oil type emulsified gasoline has very good practical value.

The present invention relates to a fibrous starch with enhanced emulsifying capacity and emulsifying stability, and low-fat mayonnaise and margarine compositions using the same. More specifically, disclosed are fibrous starch which has an increased starch particle size and exhibits improved emulsifying capacity and emulsion stability, prepared by heat-treating starch at a temperature lower than a gelatinization temperature, phosphorylating the starch and further heat-treating the starch sample at a high temperature, and low-fat mayonnaise and margarine compositions in which the content of cooking oil is reduced by 50% or more by adding the fibrous starch with enhanced emulsifying capacity thereto.

The invention relates to a pesticide emulsifier which comprises the following components: 50 parts of calcium dodecyl benzene sulfonate, 70 parts of alkylphenol formaldehyde polyoxyethylene ether, 12 parts of phenylacetaldehyde phenyl polyoxyethylene ether-polypropylene oxide ether, 7 parts of xylene, 2 parts of sodium hydroxide, 4 parts of isopropanol, 12 parts of alum, 7 parts of hexadecanol, 1 part of n-caprylic alcohol, 7 parts of decanol and 2 parts of sodium stearate. Compared with the prior art, the emulsifier has the advantages of good low temperature fluidity, excellent emulsifying property, small amount, good diffuse penetration performance and low price.

The invention discloses a cationic asphalt emulsifier, a preparation method thereof and an asphalt emulsifying method. The emulsifier comprises active components, an alcohol solvent and an inorganic acid, wherein the content of the small-molecular alcohol solvent is 2%-10%, the content of the inorganic acid is 10%-50%; the active components at least comprise a first active component, a second active component and a third active component; the first active component is a C12-C22 fatty amide surfactant with content of 5%-25%; the second active component is a C12-C22 fatty acid quaternary ammonium salt surfactant with content of 2%-15%; the third active component is a zwitterionic surfactant with content of 5%-40%. Liquid soap is prepared from the emulsifier and hot water by mixing, to-be-emulsified asphalt is heated to a proper temperature, then the to-be-emulsified asphalt and the liquid soap are added to a colloid mill and sheared, and emulsified asphalt is obtained. Both matrix asphalt and SBS modified asphalt can be emulsified, the emulsification effect is stable, and the emulsified asphalt has good pavement performance.

The invention relates to a preparation method of transesterification rice bran stearin mold oil, belonging to the technical field of food processing. The preparation method is characterized by comprising the following steps: subjecting rice bran stearin and palm stearin to transesterification under the catalysis of an enzyme or sodium methoxide to generate new transesterification rice bran stearin serving as base oil of the mold oil; and performing matched conditioning on a compound emulsifier and an antioxidant, then adding the compound emulsifier and the antioxidant into the base oil of the mold oil, and conducting homogenizing and emulsifying to form the stable transesterification rice bran stearin mold oil. The transesterification rice bran stearin pure-oil type mold oil is mainly used for mold release of food in the baking food industry and can also be used as emulsified shortening oil for baking food, and has stable emulsifying property, smearing property, mold release property, high-temperature baking resistance and good oxidation resistance.

The invention discloses a low-yellowing hydrophilic finishing agent which is characterized by comprising the following components in parts by mass: 100 parts of polysiloxane monomer, 2-13 parts of aminoethyl-aminopropyl-methyldialkoxy silane, 5-40 parts of organic solvent, 1-5 parts of modifier and 5-15 parts of emulsifier. The low-yellowing hydrophilic finishing agent disclosed by the invention has low yellowing, good hydrophilic property and low flow viscosity.

The invention discloses phenolated lignin, an amphoteric lignin emulsifier, emulsified asphalt and a preparation method of the phenolated lignin. The preparation method of the phenolated lignin comprises the following steps: adding deionized water into lignin, heating to 40-60 DEG C, adding alkali to adjust the pH value to 9-12, adding a catalyst, adding phenol, and reacting at 60-100 DEG C for 0.5-4 hours to generate the phenolated lignin; the preparation method of the amphoteric lignin emulsifier comprises the following steps: mixing a sodium hydrogen sulfite solution with epoxy chloropropane, and reacting to generate a first intermediate; adding the phenolated lignin prepared by the method into deionized water, heating to 60-80 DEG C, adding a sodium hydroxide solution to adjust and stabilize the pH value of the phenolated lignin solution, cooling to 40-60 DEG C, adding dimethylamine, stirring for 10-30 minutes, adding a formaldehyde solution, heating to 70-80 DEG C, and reacting for 3-8 hours to generate a second intermediate; and mixing the two intermediates to generate the amphoteric lignin emulsifier. The phenolated lignin with high reaction activity is adopted and has hydrophilic groups such as amido, sulfo and hydroxyl, and the prepared emulsifier has excellent emulsifying performance.

The invention belongs to the technical fields of oil chemistry and fine chemical engineering and discloses polyol aliphatic ester as well as a preparation method and application thereof. The polyol aliphatic ester is prepared from the following components in percentage by mass: 60%-75% of polyol and 25%-40% of C8-C18 mixed mixed fatty acid, wherein polyol is prepared from the following components in percentage by mass: 60%-85% of glycerin, 10%-30% of trimethylolpropane and 5%-10% of pentaerythritol; and C8-C18 mixed mixed fatty acid is prepared from the following components in percentage by mass: 5%-10% of caprylic acid, 5%-10% of capric acid, 5%-10% of lauric acid, 5%-10% of palmitic acid, 5%-10% of stearic acid and 50%-75% of oleic acid. The HLB value of the polyol aliphatic ester is 12-14, and the polyol aliphatic ester is a very good emulsifying agent and auxiliary thickening agent for food-grade O / W-type cosmetics.

The invention belongs to the field of coatings, and particularly relates to a coating containing plant herbal extracts. The coating comprises the following components in parts by weight: 50-150 partsof titanium dioxide, 70-230 parts of kaolin, 45-150 parts of wollastonite, 20-85 parts of talcum powder, 120-280 parts of soft white sugar, 1-20 parts of alginic acid, 0.5-6 parts of carboxymethyl cellulose, 0.05-3 parts of a dispersing agent, 0.1-5 parts of a defoaming agent, 0.1-15 parts of a BP-8029 emulsifier, 0.1-15 parts of 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate), 1-23 partsof specific traditional Chinese medicine extract, and 100-800 parts of water. The invention also relates to a preparation method and application of the coating. The coating disclosed by the inventionis a homogeneous coating product, has a good mosquito repelling effect and good film-forming property, does not use chemical synthetic preservatives, and is environment-friendly and healthy.

The invention provides a long-acting rice pre-emergence special herbicide and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a urea formaldehyde prepolymer solution; (2) ultrasonically stirring and mixing bensulfuron methyl, bispyribac-sodium, isoxaflutole and acetone to obtain a herbicide A primary mixed solution; performing ultrasonic stirring and mixing on cyhalofop-butyl, metolachlor and acetone, and obtaining a herbicide B primary mixed solution; (3) performing secondary ultrasonic stirring and mixing on the herbicide A primary mixed solution, chitosan, a compound emulsifier and water to obtain a herbicide A emulsion; performing secondary ultrasonic stirring and mixing on the herbicide B primary mixed solution, mushroom proteoglycan,Arabic gum, a compound emulsifier and water to obtain a herbicide B emulsion; (4) respectively mixing with the urea formaldehyde prepolymer solution; (5) spray drying; (6) mixing the micro-capsule particles A and the micro-capsule particles B according to a mass ratio of 3: (0.5-1); the herbicide has a good prevention effect on broadleaf weeds and gramineous weeds, has a good continuous weed sealing effect, and can maintain good and stable seedling emergence number and growth quality.

The invention discloses walnut oil low-fat emulsion gel and a preparation method thereof. The emulsion gel is prepared from walnut oil, konjac glucomannan, xanthan gum and Tween 80, wherein the konjacglucomannan and the xanthan gum are synergized to form gel as a continuous phase; the Tween 80 is used as an emulsifier; oil drops formed after the walnut oil is emulsified are used as a dispersion phase; the emulsion gel is commonly formed. A preparation process comprises the following steps: adding the Tween 80 into a konjac glucomannan water solution with the concentration of 1.0 percent; after uniformly mixing, adding the walnut oil and homogenizing to obtain emulsion; uniformly stirring and mixing the emulsion and a xanthan gum water solution with the concentration of 1.0 percent; stirring at a constant temperature of 70 to 90 DEG C for 15 to 45min to sufficiently mix a system; and after canning, sterilizing at 121 DEG C for 30 min; cooling to 40 + / -5 DEG C to obtain the walnut oil low-fat emulsion gel with good viscoelasticity. The emulsion gel disclosed by the invention has simple components and good sensory quality, can tolerate high-temperature treatment at 121 DEG C and is not separated; the emulsion gel can be used as a carrier of functional grease and meets the requirements of special crowds; the emulsion gel has soft texture and high resilience and is suitable for thespecial crowds with dysphagia to eat.

A graft-modified propylene.α-olefin copolymer (A) is obtained by graft-reacting a polar monomer onto a propylene.α-olefin copolymer (a) including 50 to 90 mol % of propylene-derived structural units (C3) and 10 to 50 mol % of C4-8 α-olefin-derived structural units (Cα) (wherein the total of the structural units C3 and Cα is 100 mol %), and satisfies the following requirements (i) to (iv) at the same time: (i) the amount of the polar monomer grafted is 0.4 to 1.5 wt %, (ii) the content of the polar monomer is not more than 1000 ppm, (iii) the content of a gel insoluble in xylene at 140° C. is not more than 2.5 wt %, and (iv) the content of a volatile hydrocarbon compound is not more than 10 ppm.

The invention discloses a preparation method of a missible oil type insecticide, and relates to the technical field of farm chemical production. The missible oil type insecticide comprises the following components by weight: 4.5-6.5% of beta-cypermethrin, 8.6-10.4% of a 2201 emulsifier, 0.4-0.8% of a synergist, 0.02-0.06% of an antifoaming agent, and 0.04-0.08% of an adhesive, with the balance being solvent xylene. The missible oil type insecticide disclosed by the invention is prepared by taking the beta-cypermethrin, the 2201 emulsifier, the synergist, the defoaming agent, the adhesive and the balance of solvent xylene as raw materials, and is excellent in emulsifying property and plant surface adhesive force and relatively long in lasting effect, so that the insecticidal effect is good; in addition, methanol is not used in the formula, although the production cost of the insecticide is improved to a certain extent, the prepared insecticide is relatively low in toxicity, relatively high in flash point, less in environmental pollution and relatively good in safety.