26 results about "Isothiazolinone" patented technology

This invention provides an antibacterial and antifungal TPE material, belonging to the field of thermoplastic elastomer technology. The antibacterial and antifungal TPE material of this invention comprises the following components: SEBS, PP, a plasticizer, modified nano-zinc oxide, N-n-butyl-1,2-benzisothiazolin-3-one, 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, an antioxidant, and zinc stearate; wherein the modified nano-zinc oxide is obtained by melt blending nano-zinc oxide with maleic anhydride-grafted SEBS, the mass ratio of the modified nano-zinc oxide to the maleic anhydride-grafted SEBS is (0.6-1.7):1, and the particle size of the nano-zinc oxide is 20-50 nm; the free acid content of the zinc stearate is 0.3%-0.5%. The antibacterial and antifungal TPE material of this invention possesses good antibacterial properties, antifungal properties, and tensile strength.

This utility model discloses a waste treatment device for isothiazolinone production, relating to the field of isothiazolinone production technology. The waste tank is connected to a first filter, the first filter is connected to a settling tank, the settling tank is connected to a distillation tank, the distillation tank is connected to a degradation tank, the degradation tank is connected to a sedimentation tank, the sedimentation tank is connected to a second filter, the second filter is connected to a nanofiltration membrane device, and the nanofiltration membrane device is connected to a treatment water tank. This device can effectively remove harmful substances from the isothiazolinone production waste, achieving harmless treatment of the waste and also realizing resource recycling to a certain extent, thus possessing good environmental and economic benefits.

This utility model discloses a pretreatment device for raw materials in the production of high-purity Kathon, relating to the field of Kathon production technology. The inlet of an ultrasonic reactor is connected via pipelines to a methylchloroisothiazolinone raw material tank and a deionized water tank. The outlet of the ultrasonic reactor is connected via a screw pump to a ceramic membrane device. The liquid phase outlet of the ceramic membrane device is connected via pipelines to a distillation column. The top gas phase outlet of the distillation column is connected via pipelines to a light component tank, an organic solvent tank, and a purified methylchloroisothiazolinone tank. This device achieves effective separation and purification of different components, improving product purity, while simultaneously recovering organic solvents and reducing production costs.

This invention relates to an isothiazolinone solid bactericide and its preparation method. The bactericide comprises solid isothiazolinone hydrochloride particles, a water-soluble film-forming material coating layer on the particle surface, and a solid alkaline pH adjuster physically mixed with the coated particles. The molar ratio of the solid alkaline pH adjuster to the hydrochloride is 0.7–1.2:1, based on the amount of hydroxide provided. The process involves wetting and granulating the solid hydrochloride with a binder solution, drying and sieving to form particles, then coating them with a water-soluble film-forming material solution to obtain coated particles, and finally mixing them uniformly with the solid alkaline pH adjuster. This invention effectively isolates oxygen, moisture, and light through coating technology, significantly improving the product's storage stability, and utilizes the alkaline pH adjuster to ensure that the product is completely converted into a free state with bactericidal activity before use.

The application provides an antiviral and antibacterial inorganic interior wall coating, which comprises, in terms of mass fraction, 20-40 parts of silica sol and 0.8-1.5 parts of an antiviral and antibacterial preservative. The antiviral and antibacterial preservative comprises triazole compounds, isothiazolinone compounds, pyridine oxide sulfide compounds and chlorohydroxy diphenyl ether compounds, which can play a synergistic role, so that the coating has excellent antiviral and antibacterial activity, durability and alkali resistance. The silica sol and the antiviral and antibacterial preservative are reasonably compounded, so that the antiviral and antibacterial preservative fully plays its performance advantages, and the coating has good uniformity and stability.

This utility model belongs to the field of chemical production technology and discloses a production apparatus for benzisothiazolinone derivatives, comprising a mixing vessel, a microwave reactor, a cooler, a neutralization vessel, an extraction vessel, a washing vessel, a drying vessel, a concentrator, and a column chromatography device, which are connected in sequence by pipelines, valves, and pumps. This utility model has a reasonable design, simple structure, convenient operation, high yield, and is easy to industrialize.

The present application relates to a kind of water scale type commercial washing liquid, belong to daily chemical technical field.The raw material of commercial washing liquid provided by the present application includes fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, water softener, cellulose ether, sodium coconut oil, sodium chloride, urea, sodium hydroxide, sodium dodecyl benzene sulfonate, polyacrylate, isothiazolinone, polyether modified silicone oil, purified water.The present application uses fatty alcohol polyoxyethylene ether sodium sulfate, fatty alcohol polyoxyethylene ether, sodium dodecyl benzene sulfonate, sodium coconut oil Multiple surfactants such as compound to improve the performance of stain removal, and polyacrylate and cellulose ether Compound realizes the anti-redeposition when fiber material fabric treatment, on this basis, introduce the polyether modified silicone oil coated by Pluronic F-127 Effectively realize low foam residue, combined with water softener and other components, synergistically play the beneficial effects of anti-redeposition, efficient stain removal, easy rinsing.

A composite quaternary ammonium salt disinfectant includes a double long-chain quaternary ammonium salt, two single long-chain quaternary ammonium salts, a synergist isothiazolinone, a nonionic surfactant fatty alcohol polyvinyl ether, and water, wherein the double long-chain quaternary ammonium salt is dialkyl dimethyl ammonium chloride with dialkyl being two independent alkyl groups with a chain length of C8-C18, and the two single-chain quaternary ammonium salts are alkyl dimethyl benzyl ammonium chloride with an alkyl chain length of C8-C18 and alkyl dimethyl ethyl benzyl ammonium chloride with an alkyl chain length of C8-C18, respectively. The composite quaternary ammonium salt disinfectant has a synergistic effect among its components, which greatly improves the capacity of resisting interferences by hard water and organics; and can kill not only bacterial propagules, lipophilic viruses (enveloped viruses, such as novel coronavirus) and fungi, but also hydrophilic viruses (non-enveloped viruses).

This utility model relates to the field of 2-methyl-4-isothiazolin-3-one production technology, and particularly to a separation and purification system for 2-methyl-4-isothiazolin-3-one. The system includes a neutralization vessel connected to a feed liquid delivery pipeline and a hydrochloric acid delivery pipeline. The outlet of the neutralization vessel and the extractant delivery pipeline are respectively connected to an extraction tower. The organic phase outlet of the extraction tower is connected to an adsorption device. The outlet of the adsorption device is connected to a distillation kettle. The vent of the distillation kettle is connected to a vacuum condenser. The condensate outlet of the vacuum condenser is connected to a solvent storage tank. The concentrate outlet of the distillation kettle is connected to a crystallization tower. The crystal outlet of the crystallization tower is connected to a centrifuge. The outlet of the centrifuge is connected to a drying device. The outlet of the drying device is connected to a product storage tank. This separation and purification system is rationally designed and can effectively separate impurities from the MIT feed liquid, greatly improving the purity of the MIT product.

The application belongs to the technical field of organic polymer compound preparation, and relates to an oilfield water injection and polymer injection glass steel pipeline material and a preparation method, which comprises, from inside to outside, an anticorrosive wear-resistant inner layer and a high-pressure anti-aging outer layer; the anticorrosive wear-resistant inner layer comprises epoxy vinyl ester resin, graphene-polytetrafluoroethylene composite powder, nano silicon dioxide, nano zinc oxide, isothiazolinone microbial inhibitor, methyl tetrahydrophthalic anhydride curing agent and dimethyl aniline accelerator; the high-pressure anti-aging outer layer comprises bisphenol A type epoxy resin, phenolic resin, surface modified glass fiber, nano silicon carbide, aromatic amine curing agent, triethanolamine accelerator, polysulfide rubber toughening agent, ultraviolet absorber, antioxidant and nano boron nitride; through overall cooperation of component matching and process improvement, the performance is obviously improved, the oilfield water injection and polymer injection complex working conditions are adapted, and a plurality of technical shortcomings of the existing glass steel pipeline are solved.

The present application relates to the technical field of hydrophobic and oleophobic antifouling paint, and discloses a hydrophobic and oleophobic antifouling paint and a preparation method thereof, a hydrophobic and oleophobic antifouling coating and application, which comprises: using isothiazolinone quaternary ammonium salt as a dispersant in the base coating of the hydrophobic and oleophobic antifouling paint, so that the contact angle after spraying reaches the technical requirements of the industry standard for super-hydrophobic and super-oleophobic; further adding isothiazolinone quaternary ammonium salt as an antibacterial agent in the top coating formula of the hydrophobic and oleophobic antifouling paint, so that a hydrophobic and oleophobic antifouling paint with antibacterial function is prepared, which has an antibacterial rate of more than 95% for staphylococcus aureus and escherichia coli, and exhibits excellent antibacterial capacity. The present application provides a preparation method of a hydrophobic and oleophobic antifouling paint, and the hydrophobic and oleophobic antifouling paint product prepared by the method has excellent comprehensive performance, and can be applied not only in the injection molding field, but also in the industrial and civil facility fields with needs for antifouling, super-hydrophobic, super-self-cleaning and antibacterial.

This invention discloses a surface-treatment-free, ultra-heavyweight anti-corrosion coating and its preparation method, comprising component A, component B, and component C. Component A includes hydrogenated bisphenol A type epoxy resin, polyaspartic acid ester resin, hyperbranched polysiloxane-phosphate-catechol terpolymer, polyaniline / polypyrrole / graphene oxide / molybdate quaternary hybrid material, graphene nanosheets, nano zinc oxide, and fumed silica. Component B includes polyetheramine, alicyclic amine, modified mercaptoacetate, melamine polyphosphate, and aluminum hydroxide. Component C includes fluorocarbon surfactant, polyether-modified polysiloxane defoamer, and isothiazolinone derivative. This coating requires no surface pretreatment such as sandblasting, grinding, or phosphating, and can be directly applied under harsh conditions such as rust, humidity, underwater, and low temperature. It is suitable for various substrates such as metal, glass, and ceramics, and has comprehensive performance characteristics including adhesion ≥15MPa, salt spray resistance >20000h, flame retardancy V-0 rating, and zero VOC.

The application relates to the technical field of fabrics, and discloses a skin-friendly antibacterial polyester blended fabric and a preparation method thereof. 4-isothiazolinone formate-based phthalic anhydride and chitosan are reacted to obtain a chitosan antibacterial finishing agent, which is then added into water, stirred and dissolved to prepare a finishing liquid. The modal / polyester blended fabric is subjected to two-dip-two-roll treatment, pre-drying, baking, washing and drying to obtain the skin-friendly antibacterial polyester blended fabric. The finishing agent contains a chitosan biological macromolecule antibacterial agent and an isothiazolinone antibacterial group, so that better antibacterial performance is achieved. The finishing agent contains hydrophilic carboxyl groups, amide bonds, hydroxyl groups and other functional groups, so that the fabric has better moisture absorption performance and good water resistance.

This invention belongs to the field of building materials, specifically relating to a preservative for polycarboxylate superplasticizers containing an isothiazolinone composition and its preparation method. The invention comprises, by weight, the following raw materials: 1-15 parts of preservative monomer, 0.5-2.0 parts of bactericidal monomer, 1-2 parts of stabilizer, and 50-90 parts of water. The bactericidal monomer is an isothiazolinone composition, including isothiazolinone derivatives and isothiazolinone quaternary ammonium salts; the preservative monomer is an organic bromine compound. This invention, using organic bromine compounds and isothiazolinone derivatives, provides a preservative for polycarboxylate superplasticizers that exhibits excellent antibacterial properties and tolerance, and can be widely applied in various fields.

This invention relates to a water quality stabilizer for water injection in oil and gas fields, belonging to the technical field of water quality stabilization along the reinjection process in oil and gas fields. The effective components of the water quality stabilizer of this invention are compound A and isothiazolinone; the mass ratio of compound A to isothiazolinone is 100:(1-4); compound A is a compound having the structural formula I; wherein R is C8-C9. 18 The present invention demonstrates through experiments that when the bactericide isothiazolinone and the active ingredient having the structure of Formula I are used together, they exhibit a synergistic effect, simultaneously enhancing the corrosion and scale inhibition performance of the corrosion and scale inhibitor and the bactericidal performance of the isothiazolinone, thus giving the water quality stability of the present invention good reagent compatibility.

The application belongs to the technical field of sealant and specifically relates to high-strength mold-resistant MS sealant and a preparation method thereof. The MS sealant comprises, in terms of weight parts, 100-120 parts of mold-resistant agent grafted MS prepolymer, 80-100 parts of active nano calcium carbonate, 5-15 parts of fumed silica, 2-4 parts of water-removing agent, 1-3 parts of coupling agent and 0.1-0.5 parts of chelated tin catalyst. The mold-resistant agent grafted MS prepolymer is a polyether prepolymer with both ends of silanol terminated, and a side chain grafted with isothiazolinone mold-resistant groups through a maleimide-thiol click chemical reaction. The mold-resistant agent is permanently anchored to the polymer main chain through a chemical bond, so that the problem of mold-resistant agent migration and loss is solved. The introduction of maleimide glycidyl ether monomers improves the rigidity of the polyether molecular chain segment, so that the sealant has long-term mold-resistant performance and high tensile strength, and can be widely applied to fields with high requirements for mold resistance and mechanical properties.

This invention discloses a multi-layer self-healing anti-corrosion and anti-fouling coating and its preparation method. The method uses hollow cerium dioxide as a nano-container to load a benzotriazole corrosion inhibitor and a 4,5-dichloro-2-n-octyl-3-isothiazolinone antifouling agent. The surface of the cerium dioxide loading mixture is then modified with silane acrylate, significantly improving the particle dispersibility in the acrylic composite coating. Finally, it is polymerized with acrylic acid and methyl methacrylate to prepare the multi-layer self-healing anti-corrosion and antifouling coating. Furthermore, constant current co-deposition further enhances the effect. The resulting coating possesses excellent anti-corrosion and antifouling properties, providing long-term protection for various metal materials and extending their service life.

The utility model discloses a device for treating production wastewater of isothiazolinone compounds, which comprises an ozone generator, a catalytic oxidation reaction tank and a gas-liquid separator which are communicated with one another, the catalytic oxidation reaction tank comprises a tank body, and a multi-stage catalytic layer and a stirring device are arranged in the tank body; the stirring device comprises a stirring shaft rotationally connected with the multi-stage catalyst layer and stirring blades arranged on the stirring shaft, and the top of the stirring shaft is connected with an output shaft of a stirring motor; the upper part of the tank body is provided with a liquid inlet pipe, the lower part of the tank body is provided with a gas distribution mechanism, the gas distribution mechanism comprises a gas delivery pipeline communicated with an ozone generator and a microporous aeration disc communicated with the gas delivery pipeline, the microporous aeration disc is rotationally connected with a stirring shaft, and the stirring shaft is provided with a plurality of guide vanes in the microporous aeration disc; a plurality of air outlet holes are formed in the top of the microporous aeration disc. The device is high in wastewater treatment efficiency, simple in structure and high in gas-liquid contact efficiency, undissolved ozone in the catalytic oxidation process is recycled, and energy consumption is reduced.

This invention relates to the field of oilfield chemical technology, specifically to a salt-resistant thickener for fracturing and its preparation process, comprising the following raw materials: multifunctional salt-resistant modified guar gum, organoboron crosslinking agent, potassium chloride, alkyl glycoside, sodium carbonate, methylisothiazolinone, and deionized water. In this invention, the multifunctional salt-resistant modified guar gum forms hydroxyl active sites through alkaline activation, introduces sulfonic acid groups, and grafts cationic monomers onto the guar gum backbone. The sulfonic acid groups enhance the hydration capacity and resistance to electrolyte interference of the molecular chain, maintaining the extension of the molecular chain. The introduction of appropriate cationic groups can improve the conformation of the molecular chain to a certain extent, avoiding increased charge shielding effect that leads to molecular chain contraction. This allows the fracturing fluid to maintain superior solubility and stable viscosity in high-salt, high-hardness formation water environments, enhancing its salt resistance and hard water resistance.

This utility model discloses a reaction vessel for producing isothiazolinone compounds, comprising a vessel body with a material inlet and a solvent inlet; a stirring mechanism is provided inside the vessel body, the stirring mechanism including a hollow stirring shaft rotatably disposed inside the vessel body, multiple hollow stirring blades connected to the hollow stirring shaft, and the hollow stirring shaft connected to a stirring motor located at the top of the vessel body; the bottom of the hollow stirring shaft is connected to a first heat exchange medium storage tank via a rotary joint; multiple guide grooves are provided at the ends of the hollow stirring blades, and multiple grooves are provided on the surface of the hollow stirring blades; multiple baffles are provided on the inner wall of the vessel body, and elastic silicone is provided on the sides of the baffles. This reaction vessel has high heat exchange efficiency, allowing for sufficient contact and reaction between materials, resulting in high reaction efficiency and improved raw material utilization.

The application discloses a kind of configuration methods of building coating, comprising the following steps: raw material preparation: base material, auxiliary agent, filler and fungicide: base material: select the solid content as 45% ‑ 55%, glass transition temperature is 20 ‑ 30 ℃ water-based acrylic emulsion as base material;Pigment: select rutile titanium dioxide, talcum powder and calcined kaolin as pigment, wherein rutile titanium dioxide mass ratio is 20% ‑ 30%;Auxiliary agent: select anionic sodium salt dispersing agent, silicone defoaming agent or mineral oil defoaming agent, HEC hydroxyethyl cellulose or associated thickening agent, alcohol fat twelve as film-forming auxiliary agent.The application discloses a kind of configuration methods of building coating, the application is by isothiazolinone and nine Li Xiang ketone according to specific proportion composition fungicide, can effectively inhibit the growth of bacteria and mould, greatly prolongs the service life of coating, reduces the wall surface mildew, discoloration and other problems caused by mould breeding.

This invention provides a broad-spectrum, high-efficiency protective microemulsion for wood and bamboo, and a method for treating wood and bamboo with this protective agent, belonging to the field of multi-effect technology with combined anti-corrosion, anti-mildew, and anti-insect functions. The microemulsion is formulated from effective functional components, a composite emulsification system, mixed solvents, and additives in specific proportions. The effective functional component is selected as disodium octaborate (Na₂B₈O₃). 13 The microemulsion system comprises at least three compounds selected from 4H2O (abbreviated as "octaboron"), triazole compounds, isothiazolinone compounds, and iodopropynyl butylcarbamate; the composite emulsion system is composed of Tween-80 and fatty alcohol polyoxyethylene ether in a certain proportion. The microemulsion treatment of wood and bamboo in this invention provides multiple functions of anti-corrosion, anti-mildew, and insect repellency. The agent exhibits good stability, the preparation method is simple, and the application process for wood and bamboo treatment offers multiple options, making it convenient and easy to implement wood and bamboo protection.

A temperature-sensitive, environmentally friendly antifouling agent microsphere coating material, its preparation method, and its application are disclosed. The method includes: (1) mixing β-glycerophosphate sodium solution, chitosan solution, isothiazolinone xylene solution, emulsifier, and cosolvent to prepare an intermediate product; (2) mixing dimethyl silicone oil, water, water-in-oil surfactant, oil-in-water surfactant, and the intermediate product from step (1); (3) adding a crosslinking agent to step (2), heating for crosslinking, and preparing the microsphere coating material. The microsphere coating material prepared by the method of the present invention consists of spherical particles with uniform particle size controlled below 500 μm; the addition of the temperature-sensitive material β-glycerophosphate sodium gives the microsphere coating material temperature-sensitive responsiveness; the method of the present invention can stably prepare O / W / O emulsions with good reproducibility.

The present invention provides a wafer cleaning solution and a method for producing the same. [Solution] The wafer cleaning solution comprises a nonionic surfactant, an anionic surfactant, an antibacterial agent, a pH adjuster, and water. The number-average molecular weight of the nonionic surfactant is 3,000 to 6,000. The anionic surfactant is selected from at least one of the group consisting of sodium lauryl sulfate and polyethylene glycol tridecyl ether phosphate. The acid dissociation constant (pKa) of the pH adjuster is 1.38 to 4.76. The antibacterial agent is selected from at least one of the group consisting of kathon, methylisothiazolinone, triclosan, chloroxyllenol, methacrylate oxide decylpyridinium bromide salt, and quaternary ammonium salt compounds.

This application relates to the field of petroleum extraction additives technology, specifically disclosing a nano-sized heavy oil viscosity reducer and unblocking agent and its preparation method. The nano-sized heavy oil viscosity reducer and unblocking agent comprises the following raw materials: 10-18 parts of mineralized modified nano-silica carrier, 10-14 parts of cross-linked fluorocarbon surfactant, 0.1-0.3 parts of polyacrylamide, 1-3 parts of benzo[a]isothiazolinone, and 55-75 parts of deionized water. The mineralized modified nano-silica carrier is prepared by growing a hydroxyapatite-titanium dioxide composite shell on its surface through a mineralization process, using nano-silica as the core. This application effectively enhances the long-term stability of the viscosity-reducing and unblocking agent's viscosity-reducing effect under high-temperature and high-salt environments, and comprehensively improves the long-term service stability of the viscosity reducer and unblocking agent in deep oil reservoir environments.