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355 results about "Polyoxydony" patented technology

Scale and corrosion inhibitor for seawater circulating cooling water

The invention relates to the field of water treatment, and discloses a scale and corrosion inhibitor for seawater circulating cooling water, which is prepared from phosphonic acid grafted maleic anhydride-acrylic acid copolymer, hydroxyethylidene diphosphonic acid, amino trimethylene phosphonic acid, N, N-dimethylformamide, N, N-dimethylformamide, N, N-dimethylformamide, N, N-dimethylformamide, N, N- The anti-corrosion coating is prepared from the following raw materials: N, N-diethylaminomethyl-benzotriazole, gamma-aminopropyltriethoxysilane, zinc salt and a polyoxyethylene-polyoxypropylene block copolymer. The core of the invention is that all the raw material components form the thermo-sensitive polyelectrolyte compound through a self-assembly process. The compound is stably dispersed at low temperature by utilizing the cloud point effect of the block copolymer, and is subjected to phase change and preferential deposition on a high-temperature heat exchange surface, so that targeted and efficient delivery of various active components is realized. According to the invention, the problems of incompatibility of components and poor stability of a traditional compound agent are solved, the product has excellent storage stability, and efficient and synergistic corrosion and scaling control can be realized under high-temperature and high-salinity working conditions.
Owner:JIANGSU KELIEN WATER PURIFYING TECH CO LTD

Water-soluble soldering paste and preparation method thereof

The invention discloses water-soluble soldering paste and a preparation method thereof, and the water-soluble soldering paste comprises the following components in percentage by mass: 85-92% of soldering powder and 8-15% of C soldering flux, the soldering flux C comprises the following components in percentage by mass: 60-95% of soldering flux A and 40-5% of soldering flux B; the soldering flux A comprises a solvent A, a rosin derivative A, a thixotropic agent A, an active agent A and a surfactant; the rosin derivative A comprises at least one of rosin amine and tetrahydroabietinol; the solvent A is a hydrophobic solvent; the mass percent of the rosin derivative A in the soldering flux A is at least 29%; the soldering flux B comprises a solvent B, a rosin derivative B, an active agent B, a thixotropic agent B and a corrosion inhibitor; the solvent B is a hydrophilic solvent; the rosin derivative B comprises polyoxyethylene rosin amine; the soldering flux A and the soldering flux B are used for being compounded into a soldering flux C of an emulsion structure; and the soldering flux C is used for being mixed with soldering powder to form the water-soluble soldering paste.
Owner:SHENZHEN FITECH CO LTD

Water-in-oil adjuvant for animal vaccine as well as preparation method and application of water-in-oil adjuvant

The invention provides a water-in-oil adjuvant for animal vaccines and a preparation method and application thereof, and relates to the technical field of biology, the water-in-oil adjuvant comprises 73%-75% of oil for injection, 20%-23% of an emulsifier and 2%-7% of a stabilizer; the emulsifying agent is prepared from 4.5 percent to 5 percent of polyoxyethylene fatty alcohol ether, 3.0 percent to 3.5 percent of glycerol monoisostearate, 7.0 percent to 8.0 percent of span 80, 4.5 percent to 5 percent of Tween 80 and 1 percent to 1.5 percent of vitamin E; the vaccine prepared from the water-in-oil adjuvant has the advantages that the viscosity is reduced, and the injection is easy. The technical problems that in the prior art, a vaccine prepared from an oil-in-water adjuvant is large in viscosity, so that resistance is large during injection, the occurrence rate of side reactions is high, an injection part swells, and granuloma is formed are solved.
Owner:TECON BIOPHARMACEUTICAL CO LTD

Water-soluble soldering paste and preparation method thereof

The invention discloses water-soluble soldering paste and a preparation method thereof. A soldering flux A comprises a solvent A, a rosin-based material, a thixotropic agent A, an active agent A, a corrosion inhibitor and a surfactant; the rosin-based material comprises at least one of acrylic acid modified rosin, hydrogenated rosin or polyoxyethylene rosin; the soldering flux B comprises a solvent B, a rosin derivative, an active agent B and a thixotropic agent B; the solvent B is a hydrophobic solvent; the rosin derivative comprises at least one of polyoxyethylene rosin amine and polyoxyethylene polymerized rosin; and the soldering flux A and the soldering flux B are compounded into an emulsion structure. Refrigerating the soldering flux A, taking out the soldering flux B, returning to normal temperature, mixing, and emulsifying for 5-10 minutes at the stirring speed of more than 1000rpm to obtain the soldering flux C; and 85-92% of soldering powder is added into 8-15% of the soldering flux C, vacuum uniform mixing is carried out at the stirring speed of 20-40 rpm, and the water-soluble soldering paste is obtained.
Owner:SHENZHEN FITECH CO LTD

Compositions and methods for modifying eukaryotic cells

Described herein are compositions and methods for modifying eukaryotic cells, for example, to express a transgene of interest and / or to produce an expanded population of cells ex vivo. Using the compositions and methods of the disclosure, a population of eukaryotic cells, such as a population of pluripotent cells (e.g., CD34+ hematopoietic stem or progenitor cells) may be transduced to express a gene of interest by contacting the cells with a viral vector, such as a lentiviral vector, and a diblock copolymer, such as a diblock copolymer composed of a hydrophilic region and a hydrophobic region. For example, the diblock copolymer may be composed of polyoxyethylene (PEO) subunits and polyoxypropylene (PRO) subunits. Additionally, the compositions and methods described herein can be used to promote the proliferation or survival of a population of pluripotent cells (e.g., CD34+ hematopoietic stem or progenitor cells) ex vivo, for example, by contacting the cells with a diblock copolymer.
Owner:ORCHARD THERAPEUTICS (EURO) LTD

Riptacaine emulsifiable paste as well as preparation method and application of riptacaine emulsifiable paste

The invention belongs to the technical field of pharmaceutical preparations, and relates to a riptacaine cream as well as a preparation method and application thereof, and the preparation method of the riptacaine cream comprises the following steps: preparing carbomer gel, preparing an oil phase, preparing a water phase, primarily emulsifying, homogenizing and gelating, finely homogenizing and filling. According to the invention, polyoxyethylene (54) hydrogenated castor oil is innovatively used as an auxiliary material, triple functions of a co-melting solvent, an emulsifying agent and a stabilizing agent are realized at the same time, and any liquid grease, solvent or other surfactants do not need to be additionally added in the prescription. Through a unique'water-gel-oil 'composite structure design, oil drops are physically wrapped by a carbomer gel network and are positioned in network pores, so that the mechanical stability superior to that of a conventional emulsion is provided, and no layering is generated through high-speed centrifugal test verification. In conclusion, the invention develops the riptacaine preparation which has the advantages of few types of auxiliary materials, higher stability, quicker effect taking and capability of expanding a new dosage form and a new process.
Owner:JINGSHI (HANGZHOU) PHARM CO LTD

Dechlorination active carrier and method for preparing the same

The application belongs to the technical field of dechlorination carrier and specifically provides a preparation method of a dechlorination active carrier, which comprises the following steps: 1) polyoxyethylene-polyoxypropylene block copolymer and modified protein solution are dissolved in deionized water, then cobalt nitrate, aluminum lactate and 2-aldehyde benzene boronic acid are added and stirred uniformly, reaction is carried out at 110-130 DEG C, centrifugation and drying are carried out to obtain a precursor; 2) tetrabutylphosphonium hydroxide and sodium aluminate are added into deionized water, TEOS and the precursor are added after mixing, stirring is carried out, crystallization is carried out at 165-175 DEG C, centrifugation and washing are carried out, and the obtained solid is dried and calcined to obtain the dechlorination active carrier. The carrier prepared by the application has the advantage of good dechlorination effect.
Owner:ZIBO CHANGJUYUAN ENVIRONMENTAL PROTECTION TECH CO LTD

Filled polyols and processes for the production thereof

PendingUS20250320339A1Polymer sciencePolyol
Filled polyols and processes for their production. The filled polyols include a carrier polyol and polymer particles dispersed in the carrier polyol. The carrier polyol includes a polyether polyol having a functionality of 2 to 6, an OH number of 20 to 120 mg KOH / g, and a poly(oxyethylene) content of at least 60% by weight, based on total weight of the polyether polyol. The polymer particles exhibit a multimodal particle size distribution.
Owner:COVESTRO LLC

Waste gas absorption liquid for treating large-air-volume low-concentration waste gas through water-based method

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.
Owner:XIAMEN ADIT ENVIRONMENTAL PROTECTION TECH CO LTD

Enhanced protein-free confining liquid for protein detection and application thereof

The invention belongs to the technical field of protein calibration, and particularly relates to an enhanced protein-free confining liquid for protein detection, which comprises the following components: trihydroxymethyl aminomethane, sodium chloride, Tween-20, polyvinyl alcohol, trehalose, EDTA (Ethylene Diamine Tetraacetic Acid) and a polyoxyethylene-polyoxypropylene block copolymer, and sodium chloride and trehalose are matched to provide ions and small molecular compounds to form a stable closed environment. Wherein the trehalose assists in filling and covering small pores of PVDF, the sodium chloride provides ion balance, the EDTA-Na is used for precipitating metal ions, and the Tween-20 assists in repairing the PVDF film. According to the invention, the polyvinyl alcohol and the polyoxyethylene-polyoxypropylene block copolymer are mixed for use, so that non-specific sites on the membrane are blocked while impurity proteins are prevented from being introduced, the sealing effect is achieved, and the problem of false positive or non-specific binding easily caused by the traditional sealing liquid is effectively solved.
Owner:SUZHOU NEW CELL & MOLECULAR BIOTECH CO LTD

Bio-based polyurethane ink and preparation method thereof

The invention discloses a bio-based polyurethane printing ink. Comprising the following raw materials in parts by weight: 10.3 to 22.4 parts of bio-based isocyanate, 25.6 to 34.5 parts of diisocyanate, 40.4 to 52.8 parts of bio-based polyol, 5.7 to 12.4 parts of polypropylene carbonate polyol, 0.5 to 1.2 parts of a catalyst, 3.5 to 9.5 parts of a hydrophilic chain extender, 4.3 to 12.6 parts of an amine chain extender, 2.8 to 6.7 parts of a neutralizing agent, 5.1 to 16.5 parts of water, 6.7 to 18.3 parts of toner, 2 to 5 parts of a thickening agent, 4.2 to 6.8 parts of a curing agent, 2.1 to 4.5 parts of a BYK-425 dispersing agent and 1.5 to 2.3 parts of a TGEO Glide 450 flatting agent. 1.1 to 2.3 parts of polyoxyethylene glycol alkyl ester and 4.7 to 6.2 parts of an antibacterial agent; the invention also discloses a preparation method of the bio-based polyurethane ink. The printing ink is prepared from bio-based isocyanate and bio-based macromolecular polyol through a reaction, has very excellent biocompatibility and biodegradability, and is endowed with an antibacterial function through the antibacterial agent.
Owner:GUANGDONG SANQI CHEM TECH CO LTD

Absorbable bone hemostasis repair stent as well as preparation method and application thereof

The invention relates to an absorbable bone hemostasis and repair stent. The absorbable bone hemostasis and repair stent comprises the following raw materials in parts by weight: 15-60 parts of an excipient, 15-60 parts of a softening agent and 5-70 parts of a bone repair promoting component, the excipient is prepared from a polyoxyethylene-polyoxypropylene copolymer; the softening agent comprises a semi-solid mobile phase polymer; the bone repair promoting component comprises a coating and a core, the coating comprises a polylactic acid-glycolic acid copolymer, zinc stearate and potassium bromide, the core comprises calcium phosphate particles, and the coating wraps the surface of the core. The preparation method comprises the following steps: preparing the bone repair promoting component; and preparing the absorbable bone hemostasis repair stent. The absorbable bone hemostasis and repair stent is high in hemostasis and collapse resistance and has good inflammation regulation and bone repair promoting effects. The absorbable bone hemostasis and repair stent can be used for bone hemostasis and bone repair promotion of any bone injury wound.
Owner:BEOGENE BIOTECH GUANGZHOU

High-efficiency low-toxicity fireproof heat-insulation composite coating and preparation method thereof

The invention relates to a high-efficiency low-toxicity fireproof heat-insulation composite coating and a preparation method thereof, and the preparation raw materials of the high-efficiency low-toxicity fireproof heat-insulation composite coating comprise the following components in parts by weight: 20-30 parts of modified polysiloxane, 15-25 parts of ammonium polyphosphate, 8-15 parts of melamine, 15-28 parts of an inorganic filler, 10-15 parts of water, 5-10 parts of a cosolvent, and 1-3 parts of a functional auxiliary agent. The modified polysiloxane is an A-B-C type three-section type block copolymer, wherein the A section is a polydimethylsiloxane or methyl phenyl siloxane block; the segment B is an organic silicon chain segment containing a phosphazene structural unit; and the segment C is a polyethylene glycol or polyoxyethylene block. According to the invention, the modified polysiloxane is cooperated with the ammonium polyphosphate salt and the melamine, so that the composite coating has the effects of high-efficiency fire prevention and heat insulation, low toxicity, environment friendliness and excellent film forming performance.
Owner:乐创机械科技无锡有限公司

Adhesive tape capable of losing adhesive force after being electrified and preparation process of adhesive tape

The invention relates to a power-on adhesive tape capable of losing adhesion and a preparation process thereof. The power-on adhesive tape comprises a base film, a conductive layer and an adhesive layer, the adhesive layer is prepared from the following raw materials in parts by mass: 40 to 50 parts of acrylate copolymer, 3 to 5 parts of terpene resin, 0.2 to 0.5 part of initiator, 20 to 30 parts of solvent, 3 to 5 parts of pyridine modified reduced graphene oxide, 8 to 10 parts of hydroxypropyl-beta-cyclodextrin, 2.0 to 2.4 parts of 1-(2-aminoethyl) ferrocene and 4 to 5 parts of polyethylene glycol diacrylate. The component A is prepared from the following components in parts by weight: 0.5 to 0.8 part of polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer, 0.2 to 0.5 part of benzotriazole antioxidant and 1 to 2 parts of polycarbodiimide; the raw materials of the acrylate copolymer comprise a soft monomer and a hard monomer in a mass ratio of (2.5-3.5): 1. The power-on viscosity-loss adhesive tape is high in peel strength and high in power-on viscosity-loss sensitivity.
Owner:TAICANG JIN YU ELECTRONICS MATERIALS

Fire retardant coating and preparation method thereof

The invention provides a fire-retardant coating and a preparation method thereof, belonging to the technical field of coatings. The coating comprises components such as organosilicon-modified epoxy resin, ammonium polyphosphate, melamine cyanurate, modified carbon nanotubes, cage-type silsesquioxane, zirconium boride-modified MOF-808, modified nano-magnesium hydroxide, rutile titanium dioxide, mica powder, vinyl polydimethylsiloxane-polymethylsiloxane silsesquioxane cross-linked polymer, methylsilanol-silicate cross-linked polymer, dimethylthiotoluenediamine curing agent, etc. The modified carbon nanotubes are carbon nanotubes modified by polyoxyethylene fatty acid esters, and the modified nano-magnesium hydroxide is nano-magnesium hydroxide modified by stearic acid. The components are used in combination to have good fire resistance, long fire resistance time, good weather resistance, and long-term performance is not likely to be greatly reduced.
Owner:CHINA PAINT XINFENG CO LTD

Influenza virus extraction diluent and application thereof

The application discloses an influenza virus extraction diluent and application thereof, and the diluent comprises Na2HPO4*12H2O, NaH2PO4*2H2O, NaCl, Proclin 300, ethylenediaminetetraacetic acid disodium salt dihydrate, polyoxyethylene-8-octylphenyl ether and alkylphenol polyoxyethylene ether. The polyoxyethylene-8-octylphenyl ether and the alkylphenol polyoxyethylene ether added in the diluent improve the virus extraction capacity, enhance the stability of the product, save the cost and time, provide a reference value for other products, prolong the product service life for customers, reduce the limitation, are more suitable for the temperature, and have greater market value.
Owner:HANGZHOU IMMUNO BIOTECH CO LTD

Modified graphene oxide, modified graphene oxide aqueous dispersion, and preparation method and application thereof

The application relates to the field of graphene oxide, and discloses modified graphene oxide, which comprises graphene oxide and grafted polyoxyethylene chains, the chemical formula of the polyoxyethylene chains being -CH2CH(OH)CH2O(CH2CH2O) n CH2CH2OH, wherein n is any integer of 3-20; the grafting rate of the polyoxyethylene chains in the modified graphene oxide is 30-50%. The modified graphene oxide has good salt resistance, can resist acid / alkali aqueous solutions, and effectively inhibits the accumulation and agglomeration of graphene oxide.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Sample preservation solution, and analysis device and analysis method using the same

The present invention provides means with which bile acids, phenols, indoles and organic acids contained in a sample can be stably preserved without cryopreservation of the sample. A sample preservation solution of the present invention is a sample preservation solution used for analyzing at least one component selected from the group consisting of bile acids, phenols, indoles and organic acids contained in a biological or environmental sample, containing at least the following (A) and (B): (A) condensed phosphate or polyoxyethylene sorbitan alkylate; and (B) guanidinium thiocyanate, Tris-HCl (pH 7 to 9), and EDTA.
Owner:TECHNOSURUGA LABORATORY CO LTD

Ballpoint pen refill and oil-based ballpoint pen

To provide an oil-based ink composition for a ball-point pen capable of obtaining good handwriting with good writing feeling even in writing at a high speed or at a high writing pressure while effectively suppressing ink leakage, and hardly causing strike-through, and to provide a ball-point pen.SOLUTION: A ballpoint pen refill for an oil-based ballpoint pen includes an ink reservoir tube, an oil-based ink composition filled in the ink reservoir tube, and a ballpoint pen tip attached to a front end portion of the ink reservoir tube and configured to supply the oil-based ink composition, wherein the oil-based ink composition contains a first phosphoric acid ester which is a polyoxyethylene hydrocarbon phosphoric acid ester having a hydrocarbon group having 4 or more and 17 or less carbon atoms, a second phosphoric acid ester which is a polyoxyethylene hydrocarbon phosphoric acid ester having a hydrocarbon group having 18 or more and 24 or less carbon atoms, water, and a nonionic surfactant.SELECTED DRAWING: Figure 1
Owner:PENTEL KK

A test kit for total bile acids

The application relates to the technical field of medical detection, in particular to a detection kit for total bile acid and a detection kit for total bile acid. The application adds polyoxyethylene-polyoxypropylene copolymer, Span 40 and oxide in R1, and adds EDTA-Na2 and sodium bicarbonate in R2, so that the stability and precision of reagents are effectively improved, and the situation that a negative value is generated in the detection process is solved.
Owner:AUTOBIO BIOCHEMISTRY CO LTD

Potassium ion responsive hydrogel based on imidoboronic acid ester bond and preparation method and application thereof

This invention relates to a potassium ion-responsive hydrogel based on iminoboronic ester bonds, its preparation method, and its applications. The hydrogel is prepared using guanosine, 2-formylphenylboronic acid, and polyoxyethylenediamine. The diol of guanosine forms a borate ester bond with 2-formylphenylboronic acid, and the primary amine in the polyoxyethylenediamine forms an imino group with the aldehyde group of 2-formylphenylboronic acid. The bases of guanosine form a G-quadruplex under the influence of potassium ions. The hydrogel has a porous network structure. The preparation method is as follows: A mixed aqueous solution of guanosine, 2-formylphenylboronic acid, and polyoxyethylenediamine is heated to boiling to obtain a clear solution. After cooling, the solution is mixed with a potassium ion solution to prepare the potassium ion-responsive hydrogel based on iminoboronic ester bonds. Compared with the prior art, the hydrogel prepared by this invention exhibits both temperature and potassium ion responsive characteristics.
Owner:SHANGHAI UNIV

Preparation method of nanoscale enzyme detection reagent for metronidazole residue in apple

This invention relates to a method for preparing a nanozyme detection reagent for carbofuran residues in apples, belonging to the field of pesticide residue and food safety technology. Specific steps: (1) Prepare mesoporous polydopamine powder using polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer, dopamine hydrochloride, etc.; (2) Prepare a copper-manganese bimetallic carbon dot solution using citric acid, copper chloride, manganese chloride, and ethylenediamine; (3) Prepare the nanozyme detection reagent using the mesoporous polydopamine solution and the copper-manganese bimetallic carbon dot solution. Mesoporous polydopamine has a large specific surface area, providing numerous sites for carbon dot loading and effectively adsorbing carbofuran molecules. The copper-manganese bimetallic carbon dots give the nanozyme detection reagent good enzyme-like activity and generate pesticide concentration-dependent colorimetric and photothermal signals. This invention achieves mutual verification of dual-mode output signals, significantly improving detection reliability; and completes detection within 1.5 h.
Owner:HEFEI UNIV OF TECH

Slime stripping agent as well as preparation method and application thereof

The invention belongs to the technical field of stripping agents, and particularly relates to a slime stripping agent and a preparation method and application thereof. The slime stripping agent disclosed by the invention is prepared from dodecyl dimethyl benzyl amine bromide, dichlorophenol, isothiazolinone, polyoxyethylene alkylolamide, hydroxyethylidene diphosphonic acid, dimethylformamide and sodium dodecyl benzene sulfonate. Through the combined action of the specific components, the slime stripping agent has good stripping capacity and can rapidly permeate and disintegrate slime, dirt and biological membranes attached to the surface of equipment, the cleanliness and operation efficiency of the equipment are recovered, and equipment blockage and performance reduction caused by slime accumulation are effectively avoided; meanwhile, the high killing effect on sulfate reducing bacteria and nitrifying bacteria is achieved.
Owner:ZHAOQING LINGYU ENVIRONMENTAL PROTECTION IND CO LTD

Flexible electron-oriented high-wettability reactive nano-silver ink as well as preparation method and application of flexible electron-oriented high-wettability reactive nano-silver ink

PendingCN121574596AMaterial nanotechnologyInksSilver inkSilicon matrix
The invention discloses high-wettability reactive nano-silver ink for flexible electronics and a preparation method and application thereof.The preparation method comprises the following steps that S1, silver citrate is weighed and placed in a container, ammonia water is added, and a mixture A is obtained; s2, adding a citric acid solution and organic alcohol into the mixture A to obtain a mixture B; s3, adding ascorbic acid into the mixture B, performing ultrasonic treatment, and filtering to obtain filtrate which is a mixture C; and S4, a surfactant is added into the mixture C, the surfactant is one or more than two of a polyoxyethylene acid ester surfactant, a polyether modified siloxane surfactant and a phenyl ether surfactant, and the ink is obtained after ultrasonic filtration. The prepared ink has excellent stability, can realize low-level rapid sintering, and shows excellent wettability on a silicon substrate.
Owner:HARBIN ENG UNIV

Desulfurizing agent for oil extraction in oil-gas field and preparation method thereof

The invention belongs to the technical field of desulfurizer preparation, and particularly relates to a desulfurizer for oil extraction of oil and gas fields and a preparation method thereof. The desulfurizing agent for oil extraction of the oil and gas field is prepared from the following raw materials: N-octadecyl-1, 3-propane diamine, an ionic liquid and organic copper mixture, ammonium molybdate, lysine sodium, hydroxyethylidene diphosphonic acid, polyoxyethylene sorbitan monostearate and the balance of water. According to the desulfurizing agent for oil extraction of the oil-gas field, water is used as a solvent, N-octadecyl-1, 3-propane diamine, an ionic liquid and organic copper mixture and ammonium molybdate in raw materials are used as main desulfurizing components to remove organic sulfur and inorganic sulfur, and lysine sodium, hydroxyethylidene diphosphonic acid and polyoxyethylene sorbitan monostearate are added, so that the desulfurizing agent for oil extraction of the oil-gas field is obtained. Due to the synergistic effect of the raw materials, the efficient removal of inorganic sulfur and organic sulfur in oil extraction of an oil and gas field is realized.
Owner:SHENGLI OILFIELD HAIFA ENVIRONMENTAL PROTECTION CHEM CO LTD +1

Fracturing cleanup aid, preparation method and application thereof

The application provides a fracturing cleanup aid, a preparation method and application thereof, and belongs to the technical field of oilfield development. The polyoxyethylene type nonionic surfactant in the fracturing cleanup aid has very high surface activity, high stability, and can improve the overall stability of the cleanup aid system; the amide type nonionic surfactant can be compatible with various surfactants, and can be completely dissolved in different types of additives, thereby reducing the surface tension and interfacial tension. The application utilizes the synergistic effect of different nonionic surfactants to greatly reduce the surface tension and interfacial tension of the cleanup aid, and improve the flowback effect of the fracturing fluid. The compounding of lignosulfonate and rosin sulfonate can significantly improve the surface activity, thereby further reducing the surface tension. The fracturing cleanup aid provided by the application has low surface tension (25 DEG C, < 21 mN / m) and low interfacial tension (25 DEG C, < 0.25 mN / m).
Owner:ZHENGZHOU DERONG TECH CO LTD

A tetra-arm star polymer containing a polyoxyethylene structure, and a preparation method, composition, and application thereof

ActiveCN117402290BGood dispersionGood anti-scaling effectPolymer scienceEther
This invention discloses a four-armed star-shaped polymer containing a polyoxyethylene structure, its preparation method, composition, and applications. The polymer is prepared by mixing an unsaturated organic carboxylic acid compound, an unsaturated sulfonic acid compound, and water, stirring to obtain a reaction solution, and continuously stirring and heating the reaction solution. An aqueous solution of a polyether macromonomer compound and the initiator aqueous solution are added to the heated reaction solution, followed by polymerization and purification. The polymer structure contains a large number of carboxyl groups, sulfonic acid groups, and ether groups, as well as abundant polyoxyethylene groups and alkyl chains, giving the polymer good water solubility and excellent chelating properties for metal ions. The polymer prepared by this method shows good effects in cleaning, defoaming, and scale inhibition. Furthermore, compositions formed by combining the polymer with other corrosion and scale inhibitors exhibit good compatibility and can be used for scale inhibition in high-hardness water.
Owner:PETROCHINA CO LTD

Compound SYN045 soft capsules and process for their preparation

The present application belongs to the technical field of pharmaceutical preparations, and specifically provides a compound SYN045 soft capsule and a preparation method thereof. The present application adopts a fixed proportion of plant oil and polyoxyethylene glyceryl oleate combination to prepare the content, which helps to reduce the degradation of SYN045 in the content drug solution, ensures the stability of the active ingredient, and obtains a compound SYN045 soft capsule with good drug dissolution, high drug content, low impurity generation, and high bioavailability. Further, through prescription optimization of the soft capsule shell, a fixed proportion of plasticizer is selected, the mass ratio of glycerol and sorbitol is 1:2-3, the transfer of the compound SYN045 to the soft capsule shell is reduced, and thus the quality stability problem of the soft capsule preparation product during drug storage is solved.
Owner:SHIJIAZHUANG NO 4 PHARMACEUTICAL CO LTD

High-temperature-resistant water shutoff agent as well as preparation and application thereof

The invention provides a high-temperature-resistant water shutoff agent as well as preparation and application thereof. The water shutoff agent is prepared from the following components in parts by weight: 100 to 110 parts of sodium lauryl alcohol phthalate, 45 to 55 parts of polyoxyethylene sorbitan monooleate, 60 to 70 parts of lignin surfactant, 65 to 75 parts of alpha-olefin sulfonate and 330 to 380 parts of oleic acid. The preparation process of the water shutoff agent comprises the following steps: adding the sodium lauryl alcohol ester phthalate and the polyoxyethylene sorbitan monooleate into a reaction kettle, and uniformly stirring to obtain a first reaction solution; adding a lignin surfactant and alpha-olefin sulfonate into the first reaction solution at one time, and uniformly stirring to obtain a third reaction solution; equally dividing oleic acid into two groups, adding one group of oleic acid into the third reaction solution, and uniformly stirring to obtain a fourth reaction solution; and adding another group of oleic acid into the fourth reaction liquid, uniformly stirring, and standing to obtain the water shutoff agent. The problems that a water plugging agent is poor in plugging effect in a high-temperature oil reservoir and low in crude oil recovery rate can be solved.
Owner:CHINA PETROLEUM PIPELINE ENG CO LTD +2

Polymer material for power storage device using inorganic solid electrolyte, and power storage device containing polymer material for power storage device using inorganic solid electrolyte

In a composite solid electrolyte containing an inorganic solid electrolyte and a polymer solid electrolyte containing a polyether polymer, there is room for improvement in dispersibility of the inorganic solid electrolyte and the polyether polymer. The present invention provides a polymer material for an inorganic solid electrolyte, the polymer material containing: a polyether polymer in which the main chain has a polyoxyethylene skeleton; and a phenol-based antioxidant. It has been found that this polymer material improves dispersibility with an inorganic solid electrolyte.
Owner:OSAKA SODA CO LTD