280 results about "Ammonium compounds" patented technology

The present disclosure relates to a quaternary ammonium compound and a pharmaceutical use thereof. Specifically, the present disclosure relates to a compound represented by formula IA or a pharmaceutically acceptable salt thereof, each substituent being as defined in the description.

The invention provides a perovskite passivation layer and a preparation method thereof. According to the invention, a perovskite passivation layer is arranged on the surface of a perovskite absorption layer, and the material of the perovskite passivation layer contains an alkyl diamine compound and a phenylethyl ammonium compound; the phenethyl ammonium compound is selected from p-trifluoromethyl phenylethylamine hydrochloride and / or p-fluorophenethyl hydriodate. According to the perovskite solar cell and the preparation method thereof, the alkyl diamine compound and the phenylethyl ammonium compound are cooperated to form the passivation layer, the simultaneous effect of surface passivation and interface passivation can be exerted, the carrier recombination of the surface and the interface is reduced, the electron extraction capability is improved, and the energy conversion efficiency of the perovskite solar cell is further improved.

Provided is a composition or the like capable of selectively removing silicon while suppressing damage to silicon oxide. A composition including: a quaternary ammonium compound; and at least one cationic surfactant selected from the group consisting of an aryl group-containing cationic surfactant and a heteroaryl group-containing cationic surfactant.

The invention provides a method for accurately regulating and controlling pores of an MXene material by utilizing a phosphonic acid ligand, which mainly comprises the following key steps of: directionally removing a main group element (A) layer of an MAX precursor by wet etching to obtain lamellar MXene, and then introducing a protonated quaternary amine compound intercalator to strip the MXene. And finally, carrying out functional modification and conversion by adopting a phosphonic acid ligand, and stably introducing phosphonic acid groups between layers and on the surface of MXene through solvothermal reaction to realize accurate regulation and control of interlayer spacing. The prepared material can realize efficient adsorption of uranyl in an acidic environment, shows high selectivity, high adsorption capacity and good acid stability and regeneration capacity to uranyl, provides a stable and efficient selective adsorption solution for treating high-acidity uranium-containing nuclear wastewater, and has a remarkable industrial application prospect.

The invention discloses a method for preparing a perovskite solar cell by passivating the surface of pure-phase two-dimensional perovskite, and belongs to the technical field of perovskite solar cells. The method comprises the following steps: synthesizing a pure-phase two-dimensional material by using an amine / ammonium compound, dissolving the pure-phase two-dimensional material in an organic solution, dynamically spin-coating the pure-phase two-dimensional material on the surface of three-dimensional perovskite, and annealing to form a pure-phase two-dimensional perovskite passivation layer. The pure-phase two-dimensional perovskite passivation layer with a wide band gap is applied to the top of the three-dimensional perovskite, so that energy level alignment between the perovskite layer and the charge transport layer can be improved, and electrons are effectively prevented from penetrating through the perovskite and a hole transport layer interface; meanwhile, the pure-phase two-dimensional perovskite passivation layer can effectively passivate surface defects of the three-dimensional perovskite thin film; the two-dimensional material has good hydrophobicity, degradation of the perovskite material caused by moisture can be reduced, and the long-term stability of the device can be improved. According to the method, the photovoltaic performance of the cell can be effectively improved, and the efficient and stable perovskite solar cell is obtained.

The invention discloses a full-biodegradable material based on bamboo fibers and a preparation method of the full-biodegradable material, and belongs to the technical field of composite materials. The preparation method comprises the following steps: firstly, mixing epoxidized soybean oil and kaolin, and performing ultrasonic treatment to obtain a dispersed material; secondly, crushing and dehydrating bamboo fibers, adding the bamboo fibers into an aqueous solution of an ammonium fluoride compound and imidazolium salt, mixing, heating, refluxing, filtering, collecting insoluble substances, washing and drying to obtain modified bamboo fibers; and finally, mixing the modified bamboo fiber, the dispersed material, polylactic acid, calcium carbonate, ethylene bis-stearamide, glycerol triacetate and sorbitol, putting the mixture into a double-screw extruder, controlling the temperature and extrusion process parameters, and cooling and shaping by a vacuum mold to obtain the full-biodegradable material. Compared with the prior art, the material disclosed by the invention can be quickly decomposed under a composting condition, so that the influence on the environment is reduced, meanwhile, the surface characteristics of the material are optimized, and the application range of the material is expanded.

The present invention relates to a solid hard surface cleaning composition comprising: a. a biocidal quaternary ammonium compound; b. an anionic surfactant comprising alkyl sulfate; and c. an effervescence base comprising a carbonate salt and an acid; wherein, • the weight ratio of biocidal quaternary ammonium compound to anionic surfactant is from 1.5:1 to 7:1; • at least 50 wt% of the total amount of acid present in the cleaning composition is sulfamic acid calculated on total amount of acid present in the cleaning composition; • the cleaning composition comprises from 0 to 1 wt% water; and • 25 grams of the cleaning composition dissolved in 1.5 litres of water of 20° Celsius provides an aqueous solution with a pH of 1.5 to 4.5. The invention further relates to a method of cleaning the inside surface of a toilet bowl using the composition of the present invention.

Hydrate inhibitor and corrosion inhibitor composition are disclosed and include from about 10 wt-% to about 99.9 wt-% of an anti-agglomerant low dose hydrate inhibitor (AA-LDHI), wherein the AA-LDHI is a zwitterionic compound or a cationic ammonium compound; from about 0.01 wt-% to about 50 wt-% of a corrosion inhibitor, and at least one additional functional ingredient, solvent, or a combination thereof. Methods for inhibiting corrosion and formation of gas hydrate agglomerants in a fluid are disclosed and include contacting the fluid with a hydrate inhibitor and corrosion inhibitor composition or contacting the fluid with an AA-LDHI, wherein the AA-LDHI is a zwitterionic compound or a cationic ammonium compound, and a corrosion inhibitor, wherein the AA-LDHI and corrosion inhibitor are provided at a weight ratio of about 1:0.001 to about 1:1, and wherein the composition inhibits general and localized corrosion and formation of gas hydrate agglomerants in the fluid.

A process dissolves or disperses asphaltenes from marine fuels by using at least one quaternary ammonium compound. A weight ratio of saturates to asphaltenes in the marine fuel is at least 4.0. A marine fuel is produced that includes saturates, aromatics, and asphaltenes in addition to at least one quaternary ammonium compound. Another process reduces or prevents fouling caused by asphaltenes in a marine fuel.

The invention provides an eugenol quaternary ammonium salt compound as well as a preparation method and application thereof in wood preservation, and relates to the technical field of organic chemistry. Eugenol is adopted as a core framework, carbon chains and alkyl tertiary amine are adopted for bridging, bromine salt is formed, the growth of wood decay fungi can be obviously inhibited, meanwhile, eugenol serving as a natural product can avoid threat to the ecological environment, and the safety and high efficiency in the wood preservation process are improved.

Methods of purifying ammonium products, such as ammonium sulfate, from an aqueous ammonium-containing process stream are described. The process stream may be a waste stream from an industrial process, such as from acrylonitrile production, for example. Such process streams typically contain a number of organic contaminants. The methods involve removing water from the process stream and then treating the process stream to oxidatively destroy the organic contaminants. In the described methods, the oxidant used is a strong acid, such as concentrated sulfuric acid. The acid is added at a concentration and rate that is effective at oxidatively removing the organic carbon in the stream while avoiding complications from competing side reactions. Once the process stream is sufficiently free of such contaminants, the ammonium products can be granulated.

Methods for inhibiting corrosion, cleaning and / or providing biocidal efficacy in hydrogen rich environments that are in hydrogen systems or hydrogen mediums using saturated alkyl diquaternary compound containing compositions, saturated alkyl quaternary compound containing compositions, aldehyde containing compositions, and / or tetrakis(hydroxymethyl)phosphonium sulfate containing compositions are provided. The methods provide efficacious corrosion inhibition, cleaning and / or biocidal efficacy without loss of stability due to hydrogenation in hydrogen rich environments.

An antimicrobial composition that includes: an antimicrobial component having at least one quaternary ammonium compound; a synthetic polymer that includes: at least one cationic monomer Ab, optionally, at least one anionic monomer Ba, and optionally, at least one non-ionic monomer Ca; an organic acid; at least 20 wt. % of an organic polar solvent, preferably at least 30 wt. % of an organic polar solvent, based on a total weight of the composition; and a surfactant selected from cationic surfactants, amphoteric surfactants and combinations thereof, wherein the composition is free of non-ionic surfactants and the composition has a pH of at least 7. This composition when applied to a surface provides a combination of “quick-kill” efficacy and robust long lasting disinfection.

The present application relates to: a culture medium composition for microorganisms of Corynebacterium species, in which part of ammonium sulfate is replaced with a different ammonium-containing compound; and a method for producing a basic amino acid by using the culture medium composition.

The disclosure relates to oral care compositions comprising guanidine in free or orally acceptable salt form, a cationic quaternary ammonium compound (e.g., a pyridinium compound) (e.g., cetyl pyridinium chloride (CPC)), a fluoride source, and optionally a zinc source (e.g., zinc lactate or zinc citrate and zinc oxide) as well as to methods of using and of making these compositions.

Drilling fluid compositions may include a weighting agent, a nitrite-containing compound, and an ammonium-containing compound, where the nitrite-containing compound and the ammonium-containing compound may be encapsulated together in copolymer micro-particles forming encapsulated thermochemical compounds, and where at least one property selected from the group consisting of the density, the plastic viscosity, the yield point, the gel strength, and the pH, of the drilling fluid composition may be substantially similar to the at least one property of a comparable drilling fluid composition devoid of the encapsulated thermochemical compounds. Methods for reducing a filter cake from a wellbore surface in a subterranean formation are also provided. The methods may include introducing into the wellbore the drilling fluid compositions, allowing the drilling fluid composition to reach a temperature in the wellbore sufficient for the encapsulated thermochemical compounds to react, where the reaction of the encapsulated thermochemical compounds generates heat and nitrogen gas.

A firefighting foam concentrate that is free or substantially free of fluorosurfactants is disclosed. The firefighting foam concentrate comprises water and from 25% to 38% by weight of a surfactant blend comprising at least one selected cationic quaternary ammonium compound, at least one selected alkyl amine oxide nonionic surfactant, and at least one selected alkyl sulfate anionic surfactant. Each selected surfactant has an average alkyl or alkylene carbon chain length of 8-10 carbon atoms. The firefighting foam concentrate may be combined with other firefighting foam components to form a firefighting foam composition. Also disclosed is a method of fighting a fire comprising aerating the firefighting foam composition containing the surfactant blend to form a firefighting foam that is applied to a fire or the surface of a volatile flammable liquid.

A water-soluble container including a treatment chemical is provided. The treatment chemical may be, for example, an organic sulfur compound, an imidazoline, a carboxylic acid, a fatty acid amine condensate, a substituted fatty acid ester, a substituted aromatic amine, a phosphoric acid ester, a quaternary ammonium compound, a compound having multiple positive charges, or any combination of these chemicals. The water-soluble container may include, for example, cellulose, polyvinyl alcohol, gelatin, or any combination of these materials.

A composition including a plurality of particles, the plurality of particles including: about 25% to about 94% by weight a water soluble carrier; about 5% to about 45% by weight a quaternary ammonium compound; and about 0.5% to about 10% by weight a cationic polymer; wherein the plurality of particles comprises individual particles, each individual particle having a mass from about 1 mg to about 1 g.

Provided in the present invention are an antimicrobial whitening composition, a white synthetic leather substrate and a preparation method therefor, and an antimicrobial synthetic leather. The antimicrobial whitening composition comprises a cationic antimicrobial agent, an antimicrobial organic substance and a solvent, wherein the cationic antimicrobial agent comprises at least one of a polymeric quaternary ammonium compound, polyethyleneimine, chitosan, a biguanide compound and a polymeric biguanide; and the antimicrobial organic substance comprises at least one of a terpene compound and a derivative thereof, a phenolic compound, an essential oil, an antifungal agent, a preservative and a disinfectant. The man-made leather prepared by means of the antimicrobial whitening composition of the present invention has good performance in terms of both long-lasting antimicrobial properties and maintaining a high whiteness.

The present invention relates to ophthalmic formulations in which a synergistic combination of three different types of disinfectants (a polybiguanide compound, a quaternary ammonium compound and an antifungal / anti-acanthamoeba compound), in particular a combination of polyhexamethylene biguanide, polyquaternium-1 and myristoylaminopropyl dimethylamine, high concentrations of hyaluronates are enabled to provide better comfort and support for corneal health without compromising antimicrobial efficacy. The novel ophthalmic formulations support the use of hyaluronates at concentrations greater than 7.5 times as high as currently commercially available multi-purpose disinfectants.

The present invention is a formulation for oxygen delivery for organ preservation comprising a scalable stabilized nanoemulsion, and a method for using it. The nanoemulsion embraces a hydrocarbon lipid; a fluorocarbon or perfluorocarbon; water; a nonionic surfactant; and optionally a quaternary ammonium compound, so that droplets of the nanoemulsion have a droplet size of from about 90 nm to about 120 nm and wherein the diameter of the droplets does not change by more than 20% upon storage for at least 12 months.

Compositions, such as surfactant compositions, and methods of forming compositions, such as surfactant compositions, which may include a gemini surfactant, said surfactants being ammonium compounds of formulae (I) to (VII). The methods may use a starting material from a stream generated by another process.

The present invention pertains to: a gas-barrier laminate which comprises (A) an (A)-layer formed of an olefin base material having an inorganic layer formed on at least one surface thereof, and (B) a (B)-layer containing ammonium salts of resins having carboxyl groups, and a polyvalent metal compound having a chemical equivalent of 0.1-0.5 with respect to carboxyl groups in said ammonium salts of resins having carboxyl groups, and in which the (B)-layer contains, at a range of P2 / P1=10 to 2000, an ammonium salt of a resin (P1) having a weight average molecular weight of 3,000-200,000 and having carboxyl groups, and an ammonium salt of a resin (P2) having a weight average molecular weight of 200,000-10,000,000 and having carboxyl groups; and a packaging material.

The disclosure relates to oral care compositions comprising guanidine in free or orally acceptable salt form, a cationic quaternary ammonium compound (e.g., a pyridinium compound) (e.g., cetyl pyridinium chloride (CPC)), a fluoride source, and optionally a zinc source (e.g., zinc lactate or zinc citrate and zinc oxide) as well as to methods of using and of making these compositions. 20 25 20 43 72 12 J un 2 02 5 2 0 2 5 2 0 4 3 7 2 1 2 J u n 2 0 2 5 A B S T R A C T T h e d i s c l o s u r e r e l a t e s t o o r a l c a r e c o m p o s i t i o n s c o m p r i s i n g g u a n i d i n e i n f r e e o r o r a l l y a c c e p t a b l e s a l t f o r m , a c a t i o n i c q u a t e r n a r y a m m o n i u m c o m p o u n d ( e . g . , a p y r i d i n i u m c o m p o u n d ) ( e . g . , c e t y l p y r i d i n i u m c h l o r i d e ( C P C ) ) , a f l u o r i d e s o u r c e , a n d o p t i o n a l l y a z i n c s o u r c e ( e . g . , z i n c l a c t a t e o r z i n c c i t r a t e a n d z i n c o x i d e ) a s w e l l a s t o m e t h o d s o f u s i n g a n d o f m a k i n g t h e s e c o m p o s i t i o n s . 2 0 2 5 2 0 4 3 7 2 1 2 J u n 2 0 2 5

Composition for producing polyurethane, preferably PU foam, especially rigid PU foam, comprising a polyisocyanate component, a polyol component, optionally blowing agents, at least one solid filler, optionally at least one catalyst that catalyses the formation of a urethane or isocyanurate linkage, wherein the composition comprises at least one surfactant based on a quaternary ammonium compound.

An aqueous, transparent fabric conditioner comprising: a) 1 to 25 wt.% unsaturated ester linked quaternary ammonium compound; b) single long chain quaternary ammonium compound chain comprising a hydroxyl group; and c) non-ionic surfactant having an HLB of 8 to 16, wherein the unsaturated ester linked quaternary ammonium compound comprises at least two chains derived from fatty acids, wherein the single long chain quaternary ammonium compound comprising a hydroxyl group has a long chain comprising 4 to 22 carbons, and wherein the composition has a turbidity value of 0 to 10 NTU.

The present disclosure relates to the decontamination of microorganisms on solid surfaces. The present disclosure provides a method for reducing or removing microorganisms from a solid surface by employing a combination of a quaternary ammonium compound coating and an applied electric field on the solid surface. In particular, the method comprises exposing the solid surface to an electric field having a voltage of 2 kV / cm to 6 kV / cm and a capacitance of 0.002 μF to 0.06 μF to reduce or remove microorganisms from the solid surface, wherein the solid surface has a coating of a quaternary ammonium compound. Corresponding products including kits and solid materials / devices are also provided. The method has a high efficiency (>4 log 10 or >99.99%) in reducing / removing the microbial load on the solid surface; the requirement of a very low concentration of the quaternary ammonium compound [about 0.01% (w / v) to 1% (w / v)] to achieve the above high efficiency; and has multiple advantages including but not limited to a shorter period.

The present disclosure relates to a heat insulating sheet for a rechargeable lithium battery and a rechargeable lithium battery module including the heat insulating sheet. The heat insulating sheet includes a first base layer, an aerogel-containing layer, and a second base layer that are laminated. The aerogel-containing layer includes a fibrous support, an aerogel, one or more of a phosphorus-based compound and a phosphorus-based ammonium compound, and a crosslinked product of a binder and a crosslinking agent. The binder includes an alcohol-based binder, and the crosslinking agent includes a polycarboxylic acid containing a sulfonic acid group (SO3H) or a salt thereof.

Drilling fluid compositions may include a weighting agent, a nitrite-containing compound, and an ammonium-containing compound, where the nitrite-containing compound and the ammonium-containing compound may be encapsulated together in copolymer micro-particles forming encapsulated thermochemical compounds, and where at least one property selected from the group consisting of the density, the plastic viscosity, the yield point, the gel strength, and the pH, of the drilling fluid composition may be substantially similar to the at least one property of a comparable drilling fluid composition devoid of the encapsulated thermochemical compounds. Methods for reducing a filter cake from a wellbore surface in a subterranean formation are also provided. The methods may include introducing into the wellbore the drilling fluid compositions, allowing the drilling fluid composition to reach a temperature in the wellbore sufficient for the encapsulated thermochemical compounds to react, where the reaction of the encapsulated thermochemical compounds generates heat and nitrogen gas.