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36results about How to "High HLB value" patented technology
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Preparation method for polysiloxanes-amidopolyether block copolymer
InactiveCN102199295ABroad encapsulationWide penetration abilityFibre treatmentPolyelectrolyteEmulsion
The invention discloses a preparation method for a polysiloxanes-amidopolyether block copolymer, comprising the steps of preparation of an intermediate of alpha, omega-hydrosiloxane, preparation of an intermediate of alpha, omega-polysiloxanes diepoxide, and preparation of the polysiloxanes-amidopolyether block copolymer. The polysiloxanes-amidopolyether block copolymer provided in the invention enables a textile finishing agent to be stable under condition of high temperature, a polyelectrolyte, a high pH value or a high shear force without breaking emulsion, sticking to a roller or a cylinder and producing oil marks, allows textiles finished to be returned for repairing, and is widely used in fields like chemical fiber, natural fiber and blended products thereof, etc.
Owner:HANGZHOU MEIGAO HUAYI CHEM
High-temperature-resistant high-density reversible water-in-oil/oil-in-water drilling fluid and preparation method thereof
ActiveCN109097010AGood reversalComparable performanceOrganic compound preparationCarboxylic acid amides preparationOil phasePolyamine
The invention provides high-temperature-resistant high-density reversible water-in-oil / oil-in-water drilling fluid which is composed of the following raw materials in parts by weight: 30-70 parts of an oil phase, 30-70 parts of an aqueous phase, 2-5 parts of a reversible emulsifier, 1-3 parts of an auxiliary emulsifier, 0-2 parts of organic soil, 1-4 parts of a filtrate reducer, 0-1 part of an alkalinity regulator, 0-0.5 part of a wetting agent, 0-2 parts of an enhancer and 0-800 parts of weighting materials. The reversible emulsifier is fatty acyl polyamines and derivatives thereof, and has astructural general formula of R1(CH2)m(CONH)n(C6H4)x(NH)y(NH2)zR2; the filtrate reducer is an amphiphilic filtrate reducer. The amphiphilic filtrate reducer comprises but is not limited to an amphiphilic polymer filtrate reducer, a hydrophilic modified asphalt filtrate reducer and a hydrophobic modified humic acid filtrate reducer. The compounded auxiliary emulsifier is a high HLB (Hydrophile-Lipophile Balance) value surfactant. The drilling fluid disclosed by the invention has directly adjustable density of 0.8-1.8g / cm<3>, and has excellent properties such as rheological property, suspensionstability, filter cake clearance, filter loss control, environment friendliness and stable reversibility of water-in-oil emulsion and oil-in-water emulsion in a range of 100-180 DEG C.
Owner:SOUTHWEST PETROLEUM UNIV
Use of surfactants for mitigating damage to plants from pests
A method is described for treating soil to increase plant growth or improve the health of plants, wherein an aqueous solution of polyethoxylated fatty acids and / or fatty alcohols is used which has pesticidal effects. In some embodiments, the method can be used against soil pests such as at least one of nematodes, soil-dwelling insects, and weeds. The invention also pertains to methods for applying bio-derived surfactants to crops and other plants or to the soil used for such plants in order to reduce the need to apply environmentally unfriendly pesticides substances.
Owner:BJARN
Method for producing enzyme modified soybean lecithin
The invention provides a production method of enzyme-modified soybean lecithin, adding phospholipase A2 at 2000IU / 100g-4000IU / 100g concentrated phospholipid, adding CaCl2 at 0.003-0.005mol / L, constant temperature at 40°C-60°C, and reacting 6 ~8 hours; add compound protease, dosage 10000IU / g~20000IU / g, control pH value 6~8, react for 3~5 hours; centrifuge for 10~20 minutes, remove grease. The method of the present invention modifies soybean phospholipids by phospholipase A2, which not only improves its HLB value and enhances the processing characteristics such as water solubility of phospholipids, but also does not introduce chemical groups, and is safe, reliable, unlimited, widely used, and effective Significant advantages.
Owner:SOYBEAN TECH DEV RES CENT HEILONGJIANG PROV
Preparation method of viscosity-reducing type polycarboxylic acid water reducer
The invention discloses a preparation method of a viscosity-reducing type polycarboxylic acid water reducer. The preparation method comprises the following steps: (1) adding 4-hydroxybutyl vinyl polyoxyethylene ether, phosphoric acid with a concentration of 85% and phosphorus pentoxide into a reaction container for a reaction in a temperature of 40 DEG C for 3-4 hours; (2) adding a proper amount of water, performing stirring for dissolution, adding part of unsaturated carboxylic acid monomers and controlling the pH value in a range of 4-5; (3) controlling the temperature in a range of 15-30 DEG C, adding an oxidant solution and performing full stirring; and (4) separately dropwise adding remaining unsaturated carboxylic acid monomers, unsaturated aromatic monomers, a mixed solution of fluorine-containing unsaturated monomers and a chain transfer agent, and a water solution of a reducing agent, after the adding, performing curing for at least 1 hour, and finally adding a water solution of sodium hydroxide for neutralization to obtain the polycarboxylic acid water reducer. The product provided by the invention can effectively reduce the thickness of the Stem layers on the surfaces of glue material particle dispersion, weaken the bridging effects between neighbouring dispersion, greatly reduce the backflow time of high-viscosity concrete, and improve the construction properties of concrete.
Owner:KZJ NEW MATERIALS GROUP CO LTD
Quickly-dissolved type anion polyacrylamide antiphase emulsion and preparation method thereof
ActiveCN107987212ASuperior fast dissolution effectEliminates dissolution apparatus and storage tanksIonWater in oil
The invention relates to a quickly-dissolved anion polyacrylamide antiphase emulsion and a preparation method thereof. The preparation method comprises the following steps: (1) preparing an oil phaseand a water phase; (2) dripping the water phase into the oil phase to obtain a water in oil pre-emulsion; (3) filling the water in oil pre-emulsion with nitrogen to perform deoxidizing; (4) adding aninitiator to the water in oil pre-emulsion to initiate polyreaction; and (5) adding a phase reversing agent into a reaction mixture to obtain the quickly-dissolved anion polyacrylamide antiphase emulsion. The quickly-dissolved ionic polyacrylamide antiphase emulsion provided by the invention has high dissolution rate, the dissolution time in water is shorter than 1min and an instant dissolving effect for use can be realized.
Owner:JIANGSU FEYMER TECH
Use of bio-derived surfactants for mitigating damage to plants from pests
InactiveUS20090186761A1Promote growthIncrease vitalityBiocideOrganic active ingredientsGrowth plantLipid formation
A method is described for treating soil to increase plant growth or improve the health of plants, wherein an aqueous solution of a bio-derived surfactant obtained from natural lipids has pesticidal effects. In some embodiments, the method can be used against soil pests such as at least one of nematodes, soil-dwelling insects, and weeds. The invention also pertains to methods for applying bio-derived surfactants to crops and other plants or to the soil used for such plants in order to reduce the need to apply environmentally unfriendly pesticides substances.
Owner:BJARN
Soil treatments with greenhouse gas
InactiveUS20100115833A1Reducing greenhouse gas emissionEmission reductionSeed and root treatmentLiquid fertiliser distributionPlant matterSoil science
The present invention relates to a method of facilitating reduction of greenhouse gas emissions. More particularly, the present invention relates to a method of combining greenhouse gas with a surfactant and applying the combination to soil whereby at least a portion of the greenhouse gas is sequestered in the soil or plant matter.
Owner:GREEN KNIGHT TECH
Hydrophobically associated anionic polyacrylamide water-in-oil emulsion and preparation method thereof
ActiveCN110563876ASolve the problem of isolated and random distributionImprove shear resistancePapermakingOil phase
The invention relates to a hydrophobically associated anionic polyacrylamide water-in-oil emulsion and a preparation method thereof. The method comprises the following steps: preparing an aqueous phase solution containing an emulsifier, deionized water, acrylamide, an anionic monomer, a water-soluble oxidant and a complexing agent; adding an emulsifier into a solvent oil to prepare an oil phase solution; dropwise adding the aqueous phase solution into the oil phase solution to obtain a water-in-oil pre-emulsion; introducing nitrogen into the water-in-oil pre-emulsion to remove oxygen, adding areducing agent, and carrying out oxidation-reduction reaction; and after the oxidation-reduction reaction is finished, adding a phase inverter to obtain the hydrophobically associated anionic polyacrylamide water-in-oil emulsion. The hydrophobically associated anionic polyacrylamide water-in-oil emulsion prepared by the method has high salt resistance and shearing resistance, is high in molecular weight, has the capability of being quickly dissolved in water, can achieve the effect of instant dissolution after use, and can be widely applied to the fields of oil and gas exploitation, sewage treatment, papermaking, mining and mineral separation and the like.
Owner:JIANGSU FEYMER TECH
1,2-cis-glucoside surfactant and preparation method thereof
InactiveCN108409811AReduce surface tensionReduce manufacturing costSugar derivativesTransportation and packagingSolubilityAcyl group
The invention belongs to the technical field of chemistry, and particularly discloses a glycosyl nonionic surfactant 1,2-cis-hydroxyethyl glucoside and a preparation method. The structure of the glycosidic compound is as shown in formula (I). The corresponding preparation method comprises the following steps: converting glucose into pent-acetyl glucose; catalyzing the pent-acetyl glucose and glycol monohydrocarbyl ether by lewis acid (BF3.Et2O) to obtain the corresponding 1,2-cis acyl protected glucoside; and carrying out deprotection to obtain the corresponding 1,2-cis-hydroxyethyl glucoside.The alkoxyl ethyl glucoside is in series, the preparation method is simple and easy, and conditions are gentle and controllable. Because the structure is introduced with hydrophilic oxyethyl segments(-OCH2CH2-), the HLB value is increased, the hydrophilicity is improved, and the water solubility is also improved.
Owner:XIANGTAN UNIV
Hard panned coating and confection comprising the same
ActiveUS20160029657A1Good coatingImprove lipophilicityConfectioneryChewing gumChemistryTitanium dioxide
There is provided a hard panned coating, and a hard panned confection comprising an edible core coated with the same. The hard panned coating comprises multiple sugar syrup layers, only some of which further comprise one or more sucrose esters. In some embodiments, titanium dioxide may be excluded from the sugar syrup / sucrose ester layers. In these, and other, embodiments, the hard panned coatings exhibit one or more L*, a* and b* values within 5% of the corresponding value of a colorant overcoat applied over a precoat comprising titanium dioxide. Raw material cost savings are thus provided, while yet providing a confection having enhanced properties.
Owner:MARS INC +1
Pharmaceutical Formulations and Method for Making
InactiveUS20060029670A1High HLB valueQuick releaseOrganic active ingredientsBiocideBULK ACTIVE INGREDIENTPharmaceutical formulation
The invention relates to a process of making an oral pharmaceutical formulation with variably adjustable release rate, which comprises one or more active ingredients, and one or more sucrose ester of a fatty acid as the sole release-controlling agent for said active ingredient wherein when the dosage form is a granule or a pellet. The formulation is made by melting the oral formulation and granulating or pelletizing the melt.
Owner:AWD PHARMA
Ultra-high-performance water reducing agent and preparation method thereof
The invention discloses an ultra-high-performance water reducing agent and a preparation method thereof. The preparation method comprises the following steps: carrying out a polymerization reaction onraw materials including epoxypropane / epoxybutane, ethylene oxide and L-aspartic acid to synthesize a side chain I; carrying out a polymerization reaction on raw materials including diethanol amino carboxylic acid, ethylene oxide and L-aspartic acid to synthesize a side chain II; finally, subjecting the side chain I, the side chain II and L-aspartic acid serving as raw materials to a graft polymerization reaction to obtain the ultra-high-performance water reducing agent. According to the invention, polyaspartic acid with good biodegradability is used as a main chain of the water reducing agent, and hyperbranched side chains with special molecular structures are prepared through molecular structure design and synthesis process design, so the green ultra-high-performance water reducing agentis obtained.
Owner:国检测试控股集团北京有限公司
Cutting fluid
ActiveCN109517660AImprove fluencyImprove stabilityLubricant compositionMetallurgyHexamethylenetetramine
The invention discloses cutting fluid, which is prepared from the following ingredients in percentage by mass: 15 to 25 percent of emulsifiers, 5 to 15 percent of surfactants and 5 to 15 percent of heat radiation agents, 1 to 5 percent of a corrosion inhibitor, 1 to 3 percent of an acidity regulator and the balance of water, wherein the corrosion inhibitor uses methenamine. The cutting fluid has the following advantages that the methenamine is also called as hexamine, and is an anode corrosion inhibitor mainly inhibiting the metal anode dissolution, thus improving the anti-corrosion performance of metal workpieces. Meanwhile, the methenamine is partially decomposed into ammonia gas and formaldehyde to be dissolved into water under the acidic effects of the acidity regulator; the ammonia gas and formaldehyde have a strong reduction effect, so that the fast oxidization and rusting of workpieces due to high temperature in the cutting fluid is avoided. Under the reduction effects of ammonia gas and formaldehyde, bacteria are difficult to grow in the cutting fluid; good sterilization performance is realized, so that smelliness cannot occur.
Owner:温州贝特利医疗科技有限公司
Profenofos emulsion in water and preparation method thereof
InactiveCN102326580AHigh HLB valueNot easy to salt outBiocideAnimal repellantsOrganic solventSalting out
The invention discloses profenofos emulsion in water and a preparation method thereof, and relates to a pesticide. The emulsion in water comprises the following raw materials in part by weight: 20 to 60 parts of profenofos, 8 to 12 parts of cosolvent, 5 to 10 parts of emulsifier, 1 to 2 parts of anti-freezing agent, and the balance of water serving as a carrier. The invention has the advantage of providing the emulsion in water with a little organic solvent; when the emulsion in water is used, the emulsion can be totally emulsified by adding water; and the pesticide effect of the emulsion in water is totally superior to that of a profenofos missible oil formulation with the same effective ingredient. The emulsion in water with low concentration can achieve high effect, has quick response and persistent effect, and can keep the effect for a long term. The emulsion in water has strong internal absorption and osmotic force, and can kill leaf folders. The emulsifier has high hydrophile-lipophile balance (HLB) value and is not easily salted out.
Owner:江西正邦作物保护股份有限公司
Method for producing enzyme modified soybean lecithin
Owner:SOYBEAN TECH DEV RES CENT HEILONGJIANG PROV
Diazinon emulsifiable granules and preparation method thereof
The invention relates to diazinon emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The diazinon emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of diazinon, 5%-10% of emulsifying agent, 8%-12% of water-soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid diazinon and the emulsifying agent uniformly firstly; adding diazinon after mixing into a water solution of the water soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention are emulsifiable granules without adding an organic solvent, can be completely emulsified by adding water in use, can achieve good effect at low concentration, have quick acting and duration, and can maintain a long-term superior effect; and bactericidal effect is superior to other dosage forms with the same active ingredients.
Owner:江西正邦作物保护股份有限公司
Soil treatments with greenhouse gas
InactiveUS20100115831A1Promote lowerInhibit plant growthRoot feedersSteam soil sterilisationPlant matterSoil treatment
The present invention relates to a device for facilitating reduction of greenhouse gas emissions. More particularly, the present invention relates to a device for combining greenhouse gas with a surfactant and applying the combination to soil whereby at least a portion of the greenhouse gas is sequestered in the soil or plant matter.
Owner:GREEN KNIGHT TECH
Cosmetic composition, cosmetic and preparation method of cosmetic
InactiveCN111821217AIrritant Broad SpectrumInhibitory activityCosmetic preparationsAntipyreticPolymer scienceAllergy
The invention provides a cosmetic composition. The cosmetic composition is prepared from the following raw materials: plant essential oil microspheres containing polyglycerol fatty acid ester, kojic acid, arbutin, 2-(2'-hydroxy-5'-methylphenyl) benzotriazole, 2-(2'-hydroxy-3', 5'-di-tert-phenyl)-5-benzotriazole chloride, a transdermal absorption enhancer, polyoxyethylene lauryl ether and sorbitanmonolaurate. The invention also provides a cosmetic and a preparation method thereof. The preparation method is simple, plant essential oil active substances in the prepared cosmetic are protected bythe microspheres and rubbed and broken when being used, the activity of the active substances is protected from being damaged, and the cosmetic has the effects of resisting bacteria, diminishing inflammation, resisting allergy, removing acnes and the like, is good in use effect and has a wide application prospect.
Owner:深圳名仕堂贸易有限公司
Propiconazole emulsifiable granules and preparation method thereof
The invention relates to propiconazole emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The propiconazole emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of propiconazole, 8%-12% of emulsifying agent, 8%-12% of water-soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid propiconazole and the emulsifying agent uniformly firstly; adding propiconazole after mixing into a water solution of the water-soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention have quick acting and duration, can maintain a long-term superiority effect, can achieve good effect at low concentration, can reach the same bactericidal effect by utilizing a small amount of propiconazole, and have tiny pollution to crops.
Owner:江西正邦作物保护股份有限公司
High-efficiency air-entrainer for roller compacted concrete and preparation method thereof
InactiveCN110002783AImprove bleed air efficiencyGood foam stabilization effectAlkaneRoller-compacted concrete
A high-efficiency air-entrainer for roller compacted concrete and a preparation method thereof are disclosed. The air-entrainer is prepared from the following raw materials (by weight): 22-25 parts of1,4-dibromobutane, 43-58 parts of long-chain alkyl primary amine, 16-18 parts of formaldehyde, 13-17 parts of formic acid, 38-42 parts of sodium 3-chloro-2-hydroxy propanesulfate, 20-30 parts of deionized water, 100-110 parts of anhydrous ethanol, and a sodium hydroxide solution. The long-chain alkyl primary amine is one or two of dodecanamine, tetradecyl primary alkane and hexadecyl primary amine. The invention also provides a preparation method of the air-entrainer. The air-entrainer of the invention has a good molecular structure, is endowed with lower surface tension, lower critical micelle concentration and good foam performance and foam stability in comparison with a common concrete air-entrainer, especially has advantages of low dosage and high gas content for roller compacted concrete with low cubic water consumption, and can be applied to water conservancy and water-power engineering. The air-entrainer of the invention has high air-entraining efficiency, good foam stability,low dosage and good dissolvability, is convenient to use, and is economical and practical.
Owner:刘翠芬
1,2-trans alcohol ether xyloside surfactant and preparation method
InactiveCN109942645AHigh HLB valueImprove hydrophilicitySugar derivativesTransportation and packagingXyloseChemistry
The invention discloses a sugar-based non-ionic surfactant 1,2-trans alcohol ether xyloside (Cn(OE)mX) and a preparation method thereof. The compound is novel in structure, a hydrophilic connecting arm is introduced to increase an HLB value, the hydrophilicity and the water solubility are improved, and the application range can be expanded. At the same time, renewable xylose is also utilized as araw material to prepare the xyloside compound through the method which is easy to implement and mild and controllable in condition.
Owner:XIANGTAN UNIV
Propiconazole emulsifiable granules and preparation method thereof
The invention relates to propiconazole emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The propiconazole emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of propiconazole, 8%-12% of emulsifying agent, 8%-12% of water-soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid propiconazole and the emulsifying agent uniformly firstly; adding propiconazole after mixing into a water solution of the water-soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention have quick acting and duration, can maintain a long-term superiority effect, can achieve good effect at low concentration, can reach the same bactericidal effect by utilizing a small amount of propiconazole, and have tiny pollution to crops.
Owner:江西正邦作物保护股份有限公司
Prochloraz emulsifiable granules and preparation method thereof
The invention relates to prochloraz emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The prochloraz emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of prochloraz, 8%-12% of emulsifying agent, 8%-12% of water-soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid prochloraz and the emulsifying agent uniformly firstly; adding prochloraz after mixing into a water solution of the water-soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention have quick acting and duration, can maintain a long-term superiority effect, and achieve good effect at low concentration.
Owner:江西汇和化工有限公司
Profenofos emulsifiable granules and preparation method thereof
The invention relates to profenofos emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The profenofos emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of profenofos, 5%-10% of emulsifying agent, 8%-12% of water soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid profenofos and the emulsifying agent uniformly firstly; adding profenofos after mixing into a water solution of the water soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention can achieve good effect at low concentration, have quick acting and duration, and can maintain the effect for a long time; and the granules have strong internal absorption property and permeability, and can kill leaf rollers in leaves.
Owner:江西正邦作物保护股份有限公司
Chlopyrifos emulsifiable granules and preparation method thereof
ActiveCN102308793BHigh HLB valueGuaranteed stabilityBiocideAnimal repellantsBiotechnologyChlorpyrifos
The invention relates to chlopyrifos emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The chlopyrifos emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of chlopyrifos, 5%-10% of emulsifying agent, 8%-12% of water-soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid chlopyrifos and the emulsifying agent uniformly firstly; adding chlopyrifos after mixing into a water solution of the water-soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention have quick acting and duration, can be completely emulsified by adding water in use, and can achieve good effect at low concentration; and bactericidal effect is superior to other dosage forms with the same active ingredients.
Owner:江西正邦作物保护股份有限公司
A kind of quick-dissolving anionic polyacrylamide inverse emulsion and preparation method thereof
The invention relates to a fast-dissolving anionic polyacrylamide inverse emulsion and a preparation method thereof. The preparation method comprises the following steps: (1) preparing an oil phase and a water phase; (2) adding the water phase to the oil phase dropwise Obtaining the water-in-oil pre-emulsion; (3) carrying out nitrogen and deoxygenation to the water-in-oil pre-emulsion; (4) adding an initiator to the water-in-oil pre-emulsion to initiate polymerization; (5) adding a phase inverting agent to the reaction mixture , to obtain fast-dissolving anionic polyacrylamide inverse emulsion. The fast-dissolving ionic polyacrylamide inverse emulsion provided by the invention has a fast dissolving speed, and the dissolving time in water is less than 1 min, which can realize the effect of dissolving immediately after use.
Owner:JIANGSU FEYMER TECH
A kind of hydrophobically associated anionic polyacrylamide water-in-oil emulsion and preparation method thereof
ActiveCN110563876BSolve the problem of isolated and random distributionImprove shear resistanceOil emulsionPapermaking
Owner:JIANGSU FEYMER TECH
Profenofos emulsifiable granules and preparation method thereof
ActiveCN102308795ALong-term effectHigh HLB valueBiocideAnimal repellantsWater soluble polymersWater soluble
The invention relates to profenofos emulsifiable granules and a preparation method thereof, and relates to an agricultural bactericide. The profenofos emulsifiable granules comprise the following raw materials in percentage by weight: 20%-60% of profenofos, 5%-10% of emulsifying agent, 8%-12% of water soluble polymer, and the balance of carriers. The preparation method comprises the following steps: mixing liquid profenofos and the emulsifying agent uniformly firstly; adding profenofos after mixing into a water solution of the water soluble polymer, and mixing uniformly, thus viscous emulsion is obtained; then adding the carriers into the viscous emulsion, thus a pre-granulating mixture is obtained; and finally granulating and drying. The granules provided by the invention can achieve good effect at low concentration, have quick acting and duration, and can maintain the effect for a long time; and the granules have strong internal absorption property and permeability, and can kill leaf rollers in leaves.
Owner:江西正邦作物保护股份有限公司
Preparation method for polysiloxanes-amidopolyether block copolymer
InactiveCN102199295BBroad encapsulationWide penetration abilityFibre treatmentPolyelectrolytePolymer science
The invention discloses a preparation method for a polysiloxanes-amidopolyether block copolymer, comprising the steps of preparation of an intermediate of alpha, omega-hydrosiloxane, preparation of an intermediate of alpha, omega-polysiloxanes diepoxide, and preparation of the polysiloxanes-amidopolyether block copolymer. The polysiloxanes-amidopolyether block copolymer provided in the invention enables a textile finishing agent to be stable under condition of high temperature, a polyelectrolyte, a high pH value or a high shear force without breaking emulsion, sticking to a roller or a cylinder and producing oil marks, allows textiles finished to be returned for repairing, and is widely used in fields like chemical fiber, natural fiber and blended products thereof, etc.
Owner:HANGZHOU MEIGAO HUAYI CHEM
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