136 results about "Cyclic amines" patented technology

The invention provides a polyimide multilayer composite membrane material as well as a preparation method and application thereof, and belongs to the technical field of gas separation. According to the method, through collaborative design of a functional support layer, a gradient MOF layer and an ultrathin selection layer structure, the problems of support layer pore seepage, MOF agglomeration, weak interface bonding and the like in an existing composite membrane material are solved. The preparation method comprises the following steps: firstly, carrying out electrostatic spinning on a polyamide acid glue solution, and synchronously introducing dopamine by adopting a chemical imidization method to prepare a functionalized polyimide fiber membrane containing hydroxyl and amino on the surface, so that the mechanical property of a supporting layer and the MOF anchoring capability are remarkably improved; growing MOF layers with different particle sizes on the surface of the fiber membrane by regulating and controlling the concentration gradient of ligand / metal salt and the reaction time, and passivating through a silane coupling agent after each step of growth so as to avoid heterogeneous nucleation and construct a gradient structure; after the MOF gradient layer is subjected to Ar plasma pretreatment to introduce hydroxyl, the ultrathin polyamide selection layer is formed by utilizing interfacial polymerization of fluorine-containing acyl chloride and a macrocyclic amine monomer, and the ultrathin polyamide selection layer is suitable for gas separation work.

The invention discloses a solar-driven integrated direct air carbon capture system based on cyclic amine, which belongs to the technical field of carbon capture and comprises an absorption-desorption core unit, a solar energy supply unit and a resource circulation module. The absorption-desorption core unit comprises a double-layer spherical reactor and a condensing device, and cyclic amine composite absorption liquid is added into the double-layer spherical reactor; and the resource circulation module comprises a CO2 graded collection device and an agricultural facility. According to the invention, the reaction energy barrier is reduced, the desorption temperature is reduced, the energy consumption required by the reaction is reduced, a large amount of low-price desorption liquid amine solution is provided for the DAC technology, the application cost of the DAC technology is reduced, and the comprehensive utilization efficiency of alkaline raw materials in the amine method carbon capture technology is improved.

The invention belongs to the technical field of coatings, and particularly relates to an epoxy heavy-duty coating as well as a preparation method and application thereof. The coating comprises a component A and a component B, the component A comprises epoxy resin, a reactive diluent, a reactive flexibilizer and an auxiliary agent; the component B comprises epoxidized soybean oil, alicyclic amine and organic phenol; the reactive flexibilizer contains an epoxy group. The epoxy curing agent with good flexibility and corrosion resistance can be obtained by carrying out graft modification on alicyclic amine by adopting the epoxidized soybean oil, and then the epoxy curing agent reacts with the epoxy resin and the reactive toughening agent at the same time for curing, so that the epoxy coating is modified by the epoxidized soybean oil. And the reaction type flexibilizer and the epoxidized soybean oil with the flexible long chain participate in the reaction, so that the flexibility of the coating is improved while the chemical resistance and the mechanical property of the coating are not reduced, the brittle failure of the coating in the use process is better avoided, and the anti-corrosion life of the coating is prolonged.

The invention discloses a quick-curing high-temperature-resistant anticorrosive coating for two-component packaging and a preparation method of the quick-curing high-temperature-resistant anticorrosive coating. The component A of the coating is composed of novolac epoxy resin, epoxy resin, a reactive diluent, an auxiliary agent, an anti-rust pigment, a filler, aluminum powder and a solvent; and the component B consists of phenolic aldehyde amine, alicyclic amine and a solvent. Compared with a traditional phenolic epoxy coating, the product has the advantages of being high in single-time film forming thickness, rapid in curing, resistant to abrasion, high in thermal stability, resistant to cold and hot impact, resistant to corrosion and the like.

The invention discloses a preparation method of a nanofiltration membrane with high magnesium and lithium selectivity. The method mainly comprises the following steps: (1) preparing an aqueous phase solution containing macrocyclic amine; (2) soaking a polyether sulfone base membrane into the water-phase solution in the step (1) for a certain time, taking out the base membrane, and removing redundant water drops; (3) preparing a normal hexane solution containing acyl chloride; (4) soaking the base membrane in the step (2) into the n-hexane solution in the step (3), and reacting for a certain time; (5) soaking the membrane in the step (4) into a secondary reaction aqueous solution containing an amine monomer, and reacting for a certain time; and (6) putting the obtained composite membrane into a drying oven, and heating for a period of time to obtain the high-magnesium-lithium selective nanofiltration membrane. The nanofiltration membrane prepared by the method has relatively high magnesium-lithium selectivity.

The invention relates to the technical field of organic dyes, in particular to a novel xanthene dye for blue photoresist color paste and a synthesis method of the novel xanthene dye. The invention relates to a synthesis method of a novel xanthene dye for blue photoresist color paste, which comprises the following steps: 1) taking rigid cyclic amine as a nucleophilic reagent, and carrying out aromatic nucleophilic substitution reaction on a chlorinated xanthene compound to obtain a xanthene intermediate; 2) performing chlorination reaction on the xanthene intermediate by using a chlorination reagent to obtain a chlorinated xanthene intermediate; 3) mixing active amine and the chlorinated xanthene intermediate, and performing substitution reaction under the action of alkali to obtain the novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste.The novel xanthene dye for the blue photoresist color paste has the advantages of being high in solubility, good in thermal stability and high in contrast ratio.

The invention discloses a high-filler-ratio double-component high-thermal-conductivity epoxy pouring sealant and a preparation method thereof.The high-filler-ratio double-component high-thermal-conductivity epoxy pouring sealant is composed of an independent component A and an independent component B according to the mass ratio of 2.5: 1-3.5: 1, the component A is prepared from, by mass, 9-28 parts of E51 epoxy resin, 0.3-0.7 part of diluent, 70-90 parts of aluminum oxide, 0.8-1.2 parts of dispersing agent and 0.3-0.7 part of defoaming agent; the component B is prepared from the following components in parts by mass: 27 to 33 parts of a polyether amine curing agent, 9 to 11 parts of an alicyclic amine curing agent, 4.5 to 5.5 parts of E51 epoxy resin, 0.5 to 0.6 part of a viscosity reduction aid, 1.8 to 2.2 parts of a curing accelerator, 1.4 to 1.6 parts of a thixotropic synergist, 0.5 to 0.6 part of a de-foaming agent, 4.1 to 4.9 parts of thixotropic powder and 41.4 to 48.6 parts of carbon black and body filler. By adding high-proportion inorganic powder aluminum oxide into E51 epoxy resin, the filler forms a three-dimensional heat-conducting network chain in the resin, a high-heat-conducting channel is constructed, and the heat-conducting property of the pouring sealant is improved.

The invention relates to the field of water treatment agents, and discloses a composition with scale inhibition and corrosion inhibition functions, the composition comprises a first component, a second component, a third component, a fourth component and an optional Schiff base compound; the first component is selected from at least one of a C2-C6 alcohol amine compound, a C4-C8 cyclic amine compound, a nitrogen-containing heterocyclic compound and gluconate; the second component is selected from at least one of a benzotriazole compound, a benzothiazole compound and a thiourea compound; the third component is an inorganic metal salt; the fourth component is selected from at least one of a sodium acetate compound, sodium polyacrylate, sodium polymaleate and polyepoxysuccinic acid. The composition has relatively strong scale inhibition and scale dissolving effects on a high-hardness and high-alkalinity circulating water system, has long-term corrosion inhibition on metals, and reduces the water supplementing and changing times of the circulating water system.

The present invention provides a degradable epoxy resin composition and its uses, body, composite material, and its recycling method and product uses, belonging to the technical field of recyclable epoxy resins. Specifically, component A includes epoxy resin, epoxy resin modifier, epoxy active diluent, and degradation aid, and component B includes terminal amino polyether, aromatic amine, alicyclic amine, and accelerator. The epoxy value of the epoxy resin ranges from 0.571 mol / 100 g to 0.694 mol / 100 g, the viscosity of the epoxy resin at 25 °C is 1500 cps to 5000 cps, and the selection criteria for the terminal amino polyether are polymers with a molecular weight of 230 to 5000, having at least two terminal amino groups, a polyether structure as the main chain, and amine groups as the terminal active functional groups. The degradable epoxy resin composition of the present application has low viscosity, high fluidity, low degradation cost, and excellent mechanical properties and heat resistance of the cured product.

This invention relates to a mixed amine carbon capture absorbent for carbon dioxide capture. The mixed amine carbon capture absorbent comprises, by mass percentage: 10-30% main absorbent, 2-15% co-absorbent, 0-5% additive, and the balance being water. The main absorbent comprises a polyamine and / or a sterically hindered amine. The polyamine has 2-4 amino groups. The amino groups of the polyamine include any one or a combination of at least two of primary, secondary, and tertiary amino groups. A carbon chain exists between the amino sites of the polyamine. The carbon chain has ≥2 carbon atoms. The co-absorbent comprises a cyclic amine with side chains. The mixed amine carbon capture absorbent of this invention has advantages such as high CO2 loading capacity, high absorption rate, and low regeneration energy consumption. It can achieve efficient and low-energy capture of CO2 from mixed gases and has good application prospects.

To provide a rubber composition and a tire excellent in overall performance of hardness and crack growth resistance.SOLUTION: The rubber composition comprises a rubber ingredient containing a butyl-based rubber, a cyclic amine having double bonds in the ring, and carbon black having a 24M4DBP oil absorption of 170ml / 100g or more.SELECTED DRAWING: None

A functional water containing a polyfunctional amine and / or a salt thereof as a functional component, wherein the total content of water, the polyfunctional amine, and the salt of the polyfunctional amine is 95% by weight or more. Desirably, the polyfunctional amine is at least one compound selected from the group consisting of a specific polyamine, a polymer having a structural unit derived from a specific cyclic amine, and a polymer having a structural unit derived from a specific unsaturated amine. The total content of the polyfunctional amine and / or salt thereof is preferably 0.0001 to 10000 ppm by weight. The functional water has functions including freshness-keeping for foods, aging of foods, antisepsis, deodorization, adjustment of plant growth, life extension for cut flowers, flowering control for cut flowers, pest control, pest repellence, improvement of bowel movement, reduction of fecal odor, reduction of blood pressure, increase of body temperature, improvement of the intraoral environment, prevention of halitosis, and prevention of body odor.

Provided are a compound having serotonin 5-HT2A receptor antagonism and / or inverse agonism, a pharmaceutically acceptable salt thereof, and a composition for serotonin 5-HT2A receptor antagonism and / or inverse agonism comprising them.A compound represented by Formula (I):wherein R1 is substituted or unsubstituted aromatic heterocyclyl or the like; R2 is each independently a hydrogen atom or the like; R3 is each independently a hydrogen atom or the like; n is 1 or the like; a combination of (L1, L2) is (NH, N) or the like; R4 is a group represented by Formula:wherein p and q are each independently 2 or the like; Ra is substituted or unsubstituted alkyl or the like; Xb is each independently CRbRb′; Rb is each independently a hydrogen atom or the like; Rb′ is each independently a hydrogen atom or the like; Xc is each independently CRcRc′; Rc is each independently a hydrogen atom or the like; Rc′ is each independently a hydrogen atom or the like; Xd is CRd or the like; and Rd is a hydrogen atom or the like; R5 and R6 are each independently a hydrogen atom or the like; and R7 is a group represented by Formula:wherein A is CR11 or the like; R9 is substituted or unsubstituted alkyloxy or the like; R10 is a hydrogen atom or the like; and R11 is each independently a hydrogen atom or the like; or a pharmaceutically acceptable salt thereof.

The invention discloses a low-dielectric epoxy resin curing agent and a preparation method thereof, and belongs to the technical field of curing agent preparation, the low-dielectric epoxy resin curing agent comprises the following components: aliphatic amine, alicyclic amine, hexahydrophthalic anhydride, a low-dielectric additive and a diluent; according to the method, a homogenization treatment process aiming at a nano material in the low-dielectric additive is arranged in the method, so that the dispersion uniformity of particles of a mixed material can be effectively ensured, agglomeration is avoided, and the subsequent mixing effect of the material can be effectively ensured; according to the present invention, the reduced pressure distillation treatment can be performed on the mixture, such that the purity of the mixture can be substantially improved so as to ensure that the product meets the established quality standard and the performance requirement, and the production of the product with characteristics of excellent appearance, excellent function and excellent service life can be easily achieved; and the final quality of finished products is guaranteed, and defective products can be removed easily.

Provided in the present invention are a solid form of a cyclic amine derivative, a preparation method therefor, and a pharmaceutical composition, specifically relating to a solid form of a compound of formula I or a salt thereof, a preparation method therefor, and a pharmaceutical composition. The compound of formula I or the salt thereof provided by the present invention has strong binding ability to apo(a) and high stability, and can be better used in clinical practice.

The application discloses an ether-containing energetic binder, a preparation method and application, and the ether-containing energetic binder comprises an epoxy resin and a curing agent. The epoxy resin comprises a structural resin component and an energetic resin component, the rigid structural unit selected from at least one of a six-membered alicyclic ring and a benzene ring is contained in a molecular main chain of the structural resin component, the ether bond structural unit is contained in a molecular main chain of the energetic resin component, and the molar ratio of the energetic resin component to the structural resin component in the epoxy resin is 1:4-9; the curing agent comprises a structural curing agent component and an energetic curing agent component, the structural curing agent component is at least one selected from at least one of an alicyclic amine and an aromatic amine, and the energetic curing agent component is at least one selected from at least one of a polyether amine. The rigidity structure and the flexible and pyrolysis structure ratio of the crosslinking network are regulated through molecular design, so that the material has high mechanical strength and high efficient combustion performance, and is suitable for the field with comprehensive requirements on structure and energy release.

Disclosed is a method for manufacturing an aluminum precursor formed by mixing 1 to 3 moles of a compound represented by the following Chemical Formula 1 or following Chemical Formula 2 and 1 to 3 moles of a compound represented by the following Chemical Formula 3,wherein X is O or S, and R1 or R2 is each independently selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms,wherein X is O or S, n is 1 to 5, and R1 to R4 are each independently selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms,wherein R1, R2 and R3 are different from each other, and each independently selected from a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a dialkylamine having 1 to 6 carbon atoms, a cycloamine group having 1 to 6 carbon atoms, or a halogen atom.

The present application relates to self-assembled block copolymers containing cyclic cross-linkable groups and self-correcting directed self-assembly methods. The self-assembled block copolymers contain cyclic cross-linkable groups selected from one or more of the group consisting of fused saturated alicyclic aryl, cyclic amine aryl, cyclic ether, and saturated alicyclic aryl. The self-correcting directed self-assembly methods include a first directed self-assembly using a first self-assembled block copolymer, which is the self-assembled block copolymer containing cyclic cross-linkable groups described above, and cross-linking to obtain a first nanostructure, and using the first nanostructure to direct a second self-assembly of a second block copolymer to obtain a second nanostructure. The self-correcting directed self-assembly methods using the self-assembled block copolymers containing cyclic cross-linkable groups of the present application substantially reduce pattern defects and reduce line edge roughness and line width roughness.

The invention relates to the technical field of coating preparation, in particular to a preparation method of kerosene-resistant antibacterial static conductive coating. The invention relates to a preparation method of a kerosene-resistant antibacterial static conductive coating. The kerosene-resistant antibacterial static conductive coating comprises a component A raw material and a component B raw material, the component A is prepared from the following raw materials: novolac epoxy resin, toughened modified resin, a reactive diluent, an auxiliary agent, polyhexamethylene biguanide, an anti-rust filler and a solvent; and the component B comprises the following raw materials: a toughening phenolic aldehyde amine curing agent and an alicyclic amine curing agent. The preparation method of the kerosene-resistant antibacterial static conductive coating has the advantages that the phenomena of bubbling and shedding are avoided, the coating has a protection effect and stable salt spray resistance and surface resistivity, and the static conductive requirement is met. The antibacterial rate is increased, the surface pollution is effectively inhibited, the green chemical industry standard is met, the adhesive force of the coating is improved, the wear resistance is improved, and high toughness can be kept in a low-temperature state.

The invention relates to medical application of a 1-(3-aminopropyl) substituted cyclic amine compound. Specifically, the invention relates to application of the 1-(3-aminopropyl) substituted cyclic amine compound shown in a general formula (I) or pharmaceutically acceptable salts, solvates, optically pure isomers, stereoisomers or mixtures thereof in preparation of medicines for treating and / or preventing multiple sclerosis and related diseases. # imgabs0 #

The present invention relates to a process for the preparation of (2S,3S)-2-benzhydryl-N-(5-tert-butyl-2-methoxybenzyl) quinuclidin-3-amine represented by the following structural formula-1a and its pharmaceutically acceptable salts thereof. Further, the present invention provides 2S,3S)-2-benzhydryl-N-(5-tert-butyl-2-methoxybenzyl) quinuclidin-3-amine salts with purity greater than 99.0% by High-performance liquid chromatography (HPLC). It further relates to a process for the preparation of (S)-2-benzhydrylquinuclidin-3-one (6) with purity greater than 99.0% by High-performance liquid chromatography (HPLC).

The invention relates to an organ selective regulation and control method of an ionizable lipid gene vector, which comprises the following steps: firstly, synthesizing uncoordinated ionizable lipid containing a ligand unit (such as cyclic amine), and forming ionizable lipid with different structural characteristics by selecting different tail chains, so that the ionizable lipid can directionally select liver or spleen; and metal ions are introduced into the non-coordinated ionizable lipid structure for coordination, so that the lung can be directionally selected. According to the method, nucleic acid molecules can be controllably and efficiently delivered to the liver, spleen or lung of a mouse, the method has the advantages of being simple, easy to implement and wide in universality, metal ion-ligand interaction is introduced into an uncoordinated ionizable lipid structure, charge distribution and apparent pKa of lipid nano particles are changed, and therefore the nucleic acid molecules can be efficiently and controllably delivered to the liver, spleen or lung of the mouse. The lipid nanoparticle organ is selectively converted from the liver or spleen to the lung, and ultrahigh nucleic acid molecule delivery efficiency is shown.

To provide novel organic compounds capable of providing highly reliable light-emitting devices. [Solution] An organic compound represented by the following structural formula (G1) is provided. However, in the organic compound represented by the following general formula (G1), R 1 ~R 14 Each of these groups comprises at least one aliphatic cyclic amine, with the remainder independently representing one of the following: hydrogen, deuterium, a C1-C10 alkyl group, a C3-C10 cycloalkyl group, a substituted or unsubstituted C6-C30 monovalent aromatic hydrocarbon group, a substituted or unsubstituted C1-C30 monovalent heteroaromatic group, and an aliphatic cyclic amine. JPEG2026049691000041.jpg50167

The application provides a solvent-free anticorrosive thermal insulation coating and a preparation method thereof, which comprises components A and B, the component A comprises 30-40 parts of bisphenol A epoxy resin, 5-10 parts of butyl glycidyl ether, 1-3 parts of a dispersing agent, 1-3 parts of an antifoaming agent, 0.5-1.5 parts of a leveling agent, 0.5-1.5 parts of a wetting agent, 1-3 parts of a rheological aid, 10-20 parts of hollow glass microbeads and 10-20 parts of hollow ceramic microbeads, wherein the particle size D50 of the hollow glass microbeads is greater than the particle size D50 of the hollow ceramic microbeads, and the component B comprises 15-25 parts of a modified ester amine curing agent. The hollow glass microbeads and the hollow ceramic microbeads are compounded to form a 'big ball-small ball' grading filling structure, which not only constructs a low-thermal-conductivity thermal insulation layer, but also blocks the water vapor permeation channel, and simultaneously considers thermal insulation and corrosion prevention.

Provided is an azacycloalkylcarbonyl cyclic amine compound which is useful as an active ingredient in a pharmaceutical composition for a treatment of a neutrophil associated inflammatory disease. The azacycloalkylcarbonyl cyclic amine compound of the present invention is a compound of Formula (I) or a salt thereof.(in the formula, Ring A represents azacycloalkyl which may have a substituent and may be spiro-fused; Y represents alkyl which may have a substituent, cycloalkyl which may have a substituent, or the like; L represents a nitrogen-containing aromatic heterocycle or the like; Z represents cycloalkyl which may have a substituent, an aromatic hydrocarbon ring which may have a substituent, a non-aromatic heterocycle which may have a substituent, or the like; and m and n each independently represent an integer of 1 or 2.)

The present invention belongs to the technical field of organic complex synthesis, and specifically relates to a metal complex and its preparation method and application. The general formula of the metal complex is L-M, wherein L is a ligand, M is a metal salt, and the ligand is diphenylmethylbenzylamine or diphenylmethylquinuclidine-3-amine. The diphenylmethylbenzylamine is prepared by reacting imine and sodium cyanoborohydride; the diphenylmethylquinuclidine-3-amine is prepared by reacting diphenylmethylbenzylamine and ammonium formate. The preparation method of the metal complex is to dropwise add a metal salt solution to a methanol solution containing the ligand, carry out a coordination reaction, and filter to obtain a target product. The preparation method has the advantages of simple process, mild conditions, low cost, and easy industrialization. The metal complex provided by the present invention can be used to prepare an antibacterial agent, which has the advantages of high efficiency, low toxicity, and environmental protection.

The present invention discloses an imine reductase mutant, a recombinant genetic engineering bacterium and their application in the synthesis of (R)-2-methylpyrrolidine. The imine reductase mutant uses the wild-type imine reductase IR23 with the amino acid sequence shown in SEQ ID NO.1 as a template, and the mutant V249T obtained by mutating valine at position 249, and the mutant V249T / W224F obtained by mutating valine at position 249 and tryptophan at position 224. Through the molecular modification method of semi-rational design, the present invention significantly improves the ability of imine reductase to catalyze the formation of the corresponding cyclic amine from the cyclic imine 2-methylpyrroline. When the mutant V249T / W224F catalyzes 2-methylpyrroline, the substrate conversion rate is 93.3%, which is increased by 49.8% compared with the wild type. The present invention effectively improves the ability of imine reductase to asymmetrically synthesize chiral amines, which is of great significance for the green catalytic synthesis of chiral amine compounds.