216 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 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.

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 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 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.

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 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.

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.

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.

The present disclosure relates to the use of polycarboxylic acids and / or salts thereof and quaternary ammonium compounds in the preparation of low foam cleaning compositions, and the use of polycarboxylic acids and / or salts thereof and quaternary ammonium compounds in the preparation of low foam cleaning compositions for use in methods of cleaning articles. Beneficial is that the cleaning composition is compatible with cleaning methods and apparatuses that require low foam, including but not limited to machine wash ware cleaning and in-place cleaning. The cleaning composition is particularly suitable for low temperature disinfection applications.

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.

The invention relates to an aqueous textile finishing composition and a method for finishing textiles. The aqueous textile finishing composition comprises 1, 2, 3-glycerol, a surfactant, and a finishing agent selected from the group consisting of oil of plant origin, wax of plant origin, beeswax, and ester quaternary ammonium compounds. The textile finishing composition is free of silicone and fluorine.

The present invention relates to a process for polymerizing an olefin comprising reacting an olefin in the presence of a catalyst system wherein the catalyst system comprises a support material carrying: a. A metallocene compound; b. A co-catalyst; and c. An antistatic agent; wherein the metallocene compound is a compound according to formula (I) wherein:-Z is a moiety selected from ZrX2, HfX2 or TiX2 wherein X is selected from the group consisting of halogen, alkyl, aryl and aralkyl; -R2 is a bridging moiety containing at least one sp2 hybridized carbon atom, preferably R2 is a substituted or unsubstituted methylene, 1, 2-phenylene or 2, 2 '-biphenylene moiety; and each of R1, R1 ', R3, R3', R4, R4 ', R5 and R5'is hydrogen or a hydrocarbon moiety comprising from 1 to 20 carbon atoms; wherein the co-catalyst is an organic aluminum compound; and wherein the antistatic agent is an antistatic composition comprising: (a) a hydrocarbon moiety; (b) a moiety of a benzenesulfonic acid derivative; and (c) a moiety of a quaternary ammonium compound. Such a process allows for the production of olefin polymers in high productivity and throughput while reducing reactor fouling.

Described herein are fabric softening compositions comprising a quaternary ammonium compound (e.g., an esterquat); a cationic polyquaternium polymer (e g., polyquaternium-7); a preservative system which comprises an organic acid (e.g., lactic acid or phosphonic acid); and 3-iodo-2-propynyl butylcarbamate (IPBC) or Dodecylguanidine Hydrochloride (DGH); and a phosphonic chelating agent (e.g., etidronic acid). Methods of making and using the fabric softening compositions are also described herein.

The present disclosure relates to novel quaternary salt compounds including, in one embodiment, a cation having a quaternary ammonium group that is coupled to a N-substituted amino ketoacetate anion as a counterion.

Disclosed is an electrolyte composition, a secondary battery comprising the electrolyte composition, and a method of preparing a secondary battery. The electrolyte composition includes an electrolyte compound, a quaternary ammonium fluoride-containing compound, and a solvent.

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.

A rehabilitation composition includes: a micellar water including one or more non-ionic surfactants which are soluble or emulsifiable or dispersible in water; one or more of a prebiotic, a probiotic, or a postbiotic; one or more excipient solvents; one or more excipient pH regulators, one or more excipient acids or their alkali and / or alkaline earth salts and / or amino acids giving the resulting composition a pH between 3 and 4.2; and up to 98.695% by weight of water. An aqueous liquid composition of the rehabilitation composition includes the one or more non-ionic surfactants in an amount ranging from 1.0 to 5.0% by weight; no surfactants other than the non-ionic surfactants are present; the one or more solvents in an amount ranging from 0.1 to 20.0% by weight; no C1-C6 alcohols other than a type of glycol ether are present; and no quaternary ammonium compounds are present.

A digestion accelerator includes a specified quaternary ammonium compound, and at least one amine compound selected from the group consisting of a specified primary monoamine, a specified secondary monoamine, and a specified tertiary monoamine. A mass ratio between the quaternary ammonium compound and the amine compound is 5:1 to 10000:1. A method for producing pulp includes a digestion step of adding at least one main agent selected from the group consisting of an alkaline main agent and a sulfite-based main agent, and a digestion accelerator, to digest a material including lignocellulose, in which the digestion accelerator is the above digestion accelerator.