909 results about "Carbamate" patented technology

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

The present disclosure relates to compositions and methods for reversible fixation of biological samples using fixation reagents that form bis-carbamate crosslinks between amine-bearing moieties in biomolecules.

A photocurable resin composition for nails or artificial nails, contains the following components (A) to (D): a component (A): a urethane (meth)acrylate oligomer, a component (B): a monomer selected from the group consisting of a (meth)acrylate monomer, a (meth)acrylamide monomer, and (meth)acrylic acid (excluding the component (A)), a component (C): polyglycerol having no (meth)acryloyl group and / or a compound having a polyglyceryl ether skeleton having no (meth)acryloyl group, a component (D): a photoinitiator. A molecular weight of the component (C) is 200 or more.

The invention discloses a polyether polyurethane solid polymer, a preparation method thereof and application of the polyether polyurethane solid polymer in a solid electrolyte, and belongs to the technical field of polymer electrolytes and preparation of the polymer electrolytes. The problems that an existing solid polymer electrolyte is low in ionic conductivity and poor in interface stability are solved. According to the invention, polyether amine and cyclic carbonate are subjected to an in-situ polymerization reaction to synthesize a series of polyether polyurethane solid polymer electrolytes with different molecular weights and monomer proportions. The obtained polyether polyurethane solid polymer electrolyte contains rich carbamate groups, hydroxyl groups, fluorine ions and the like, and can form a strong reversible hydrogen bond network, so that the electrolyte has excellent mechanical properties, can be used as a self-supporting electrolyte membrane, and does not need an additional diaphragm. Meanwhile, a large number of dynamic reversible hydrogen bonds also enable the solid polymer electrolyte to have excellent self-healing ability, and can be self-repaired when the battery is damaged by external force in the operation process, so that the structural stability of the solid polymer electrolyte is remarkably improved.

The technology of the present disclosure generally relates to the field of power storage devices, and more specifically to a solid electrolyte, an electrode, a solid-state battery, and a method for producing the same. An aspect of the present disclosure relates to a process for producing a solid electrolyte, comprising the steps of: - contacting, in the presence of a catalyst: - a polymer precursor compound comprising polyethylene glycol (PEG) and / or polytetrahydrofuran (PTHF), wherein the polymer precursor compound comprises on average per polymer precursor molecule, -at least 2.0 alkoxysilyl functional groups, with a functionality of at least 2.0, preferably at least 2.5, preferably at least 3.0; and / or -at least 1.0 alkoxysilyl functional groups, with a functionality of at least 3.0; - optionally, an organo-tri-alkoxy silane, an organo-tetra-alkoxy silane, and / or a mixture thereof comprising a metal ion (M+) chelating moiety being a cyanurate, a crown ether, an aza-crown ether, a thia-crown ether, a cryptand, a carbamate, a cyano group, a thiocyanate group, or a metallacrown,, - a metal (M+) salt, preferably does the metal salt comprises Li+, Na+, Mg+, Ca+, Al+, and / or a combination thereof, preferably lithium (Li+); - a solvent, preferably an organic solvent; and, - optionally, an ionically conductive compound; thereby obtaining a solid electrolyte; - optionally, drying the obtained solid electrolyte.

The invention discloses bio-based flame-retardant polyol as well as a preparation method and application thereof. Comprising the following steps: generating bio-based polyol containing 3-5 hydroxyl functionalities from raw cardanol and hydroxy ketone under the catalysis of strong acid ion exchange resin, and reacting with bromine to generate the bromine-containing bio-based flame-retardant polyol. The bio-based polyol prepared by the method is good in flame retardant property, a carbamate bond generated by a phenolic hydroxyl group and isocyanate can be reversibly decomposed at a relatively low temperature, and the bio-based polyol has good recycling performance and high bio-based content and is a green and environment-friendly bio-based material.

The invention discloses an amino acid cleansing product and a preparation method thereof. The amino acid face cleaning product is prepared from the following raw material components in percentage by mass: 10 to 30 percent of surfactant composition, 1 to 10 percent of amphoteric or nonionic surfactant, 0.05 to 0.5 percent of citric acid, 1 to 5 percent of humectant, 0.5 to 2 percent of isostearyl alcohol, 0.1 to 0.5 percent of phytosterol dimer linoleate, 0.5 to 5 percent of sodium chloride, 0.3 to 1 percent of inulin lauryl carbamate and the balance of water, the surfactant composition comprises a long-chain fatty acyl glycol acid salt. The amino acid face cleansing product keeps uniform appearance under the conditions of high temperature, low temperature and repeated freezing and thawing, has good physical and chemical stability and compatibility, has small damage to a cuticle structure under the condition of realizing sufficient cleaning, and shows good cleaning and mild effects.

The invention relates to an optical monomer and a preparation method and application thereof, the structural general formula of the optical monomer is shown as G1, G2, G3, G4, G5, G6, G7 and G8, R1 is selected from one of the formulas, and R2 is hydrogen or methyl; n is a positive integer selected from 1-10. The optical monomer provided by the invention contains a plurality of aromatic rings with high molar refractive index and low molar volume, and also contains sulfur atoms with relatively high molar refractive index, so that the whole molecule of the whole monomer is extremely high in refractive index; the polymer also has a phenyl dithiocarbamate structure, and has good compatibility with film-forming resin with carbamate when being used for a photopolymer holographic recording medium. The monomer structure provided by the invention has a plurality of branched chains, the overall molecular weight is small, and the molecules are not easy to agglomerate.

The invention belongs to the field of medicines, discloses a polyamino cationic lipid containing a carbamate structure, a composition containing the polyamino cationic lipid and application, and particularly discloses a cationic lipid shown in a formula (I). The cationic lipid provided by the invention can be used for targeted delivery of nucleic acid, and can significantly enhance spleen targeting of nucleic acid drugs while reducing liver enrichment.

The invention discloses an amino absorbent for promoting CO2 desorption and application of the amino absorbent, and belongs to the technical field of CO2 trapping. The amino absorbent comprises histidine and an amine absorption liquid, and the histidine serving as a catalyst is dissolved in the amine absorption liquid to prepare the amino absorbent for promoting CO2 desorption. The histidine provided by the invention is used as a catalyst for catalyzing CO2 desorption. Experiments show that by adding a small amount of histidine (such as 0.22 wt%), the desorption amount and the maximum desorption rate of CO2 can be remarkably improved, the maximum desorption rate can be improved to 34.0%, and regeneration heat consumption is reduced to 71.7% of the standard. The histidine realizes high-efficiency and low-energy-consumption CO2 desorption by changing a reaction path, inhibiting generation of stable carbamate and promoting proton transfer and amine regeneration, and the catalyst has good stability and can be recycled. And the histidine serving as the catalyst has the characteristics of homogeneous phase and dissolved state, so that the engineering application problem of a solid catalyst in a liquid phase reaction system is fundamentally solved.

The invention provides a composite solid electrolyte membrane, a preparation method thereof and a secondary battery. The composite solid-state electrolyte membrane comprises a modified pyrochlore type oxide solid-state electrolyte, a polymer matrix and a lithium salt, and the modified pyrochlore type oxide solid-state electrolyte comprises a pyrochlore type oxide solid-state electrolyte and a polymer coating layer coating the surface of the pyrochlore type oxide solid-state electrolyte. The polymer coating layer and the pyrochlore type oxide solid electrolyte are connected through a covalent bond, the polymer coating layer is formed by in-situ polymerization of a polymer monomer on the surface of the pyrochlore type oxide solid electrolyte, and the polymer monomer is selected from a monomer with a trifluoroacetamide functional group and / or a monomer with a carbamate functional group. The composite solid electrolyte membrane provided by the invention has excellent lithium ion conductivity.

This easily dismantlable adhesive sheet (100) comprises an adhesive layer (10) containing a moisture-cured product of a silyl group-containing resin and a terpene phenolic tackifying resin, wherein the silyl group-containing resin has a polyoxyalkylene structure in a main chain, has, in a portion of the main chain or a side chain, both bonds among a urethane bond and a urea bond or one bond among the urethane bond and the urea bond, and has hydrolyzable silyl groups represented by formula (1) at both ends of the main chain. (In formula (1), X1 and X2 are each independently a hydroxy group or an alkoxy group, R is a C1-C20 alkyl group, and * is a bonding position.)

The application discloses an amino acid cleansing product and a preparation method thereof. The amino acid cleansing product comprises the following raw material components in percentage by mass: a surfactant composition 10-30%, an amphoteric or non-ionic surfactant 1-10%, citric acid 0.05-0.5%, a humectant 1-5%, 0.5-2% isostearyl alcohol, 0.1-0.5% phytosteryl dimer dilinoleate, 0.5-5% sodium chloride, 0.3-1% inulin lauryl carbamate, and the balance is water; the surfactant composition comprises long-chain fatty acyl glycolate. The amino acid cleansing product of the application maintains uniform appearance under high temperature, low temperature and repeated freezing and thawing conditions, has good physical and chemical stability and compatibility, and at the same time, realizes sufficient cleaning and has less damage to the stratum corneum structure, thereby showing good cleaning and mildness.

An organosiloxane has formula (I), wherein each subscript n independently has an average value of 2 to 18, each R1 is an independently selected monovalent hydrocarbyl group; each R is independently selected from H or a functional group containing a moiety selected from an acrylate group, an alcohol group, an alkoxy group, an epoxy group, an isocyanate group, a methacrylate group, or a urethane group; each D is an independently selected divalent hydrocarbyl group of 2 to 6 carbon atoms; and L an organosilicon linker. The organosiloxane is useful in various application such as a crosslinker or a co-crosslinker in silicone release coating compositions or an adhesion promoter in curable liquid silicone rubber compositions.

To provide a method for producing a urethane bond-containing polyether compound having excellent curability.SOLUTION: A method for producing a polyether compound having a urethane bond, comprising contacting an initiator having an active hydrogen with an alkylene oxide-containing starting material in the presence of a double metal cyanide complex catalyst to polymerize the alkylene oxide in the alkylene oxide-containing starting material into the initiator, and reacting the resulting polyether compound having a hydroxyl group with a polyisocyanate, wherein the polyether compound has an acid value of 0.001 to 0.008 mg / g.SELECTED DRAWING: None

The present disclosure relates to a high pressure carbamate condensing device for a urea plant, a urea plant and a urea production method. The device comprises a first U-shaped tube bundle arranged around a second U-shaped tube bundle.

The invention relates to the technical field of laundry detergents, and particularly discloses a concentrated laundry detergent capable of stably dispersing microcapsule essence and a preparation method of the concentrated laundry detergent. An organic polyurethane compound with a specific carbamate structure (the general formula is RNHCOOR ') is adopted as a suspending agent, the compound constructs a three-dimensional network structure through intermolecular hydrogen-bond interaction, the hydrogen bond donor / acceptor density of a carbamate unit is higher than that of existing suspension systems such as polyamide and hydrogenated castor oil, and the system is endowed with remarkable thixotropic characteristics. Under the action of shearing force, the network is dissociated, and the viscosity is reduced; and after the shearing force is removed, the hydrogen bond is quickly reconstructed, the viscosity rises again, rheological yield stress is generated, and stable anchoring of the high-load suspended matter is achieved. Meanwhile, due to the characteristic of high melting point of the organic polyurethane compound, the high-temperature processing condition can be tolerated, and the phenomenon of hot roughing is avoided. In addition, the hydrolysis resistance of the carbamate bond ensures the long-term stability of the suspension system in an environment with pH of 6-10 and in the presence of lipase.

The present application provides a kind of excellent re-peeling property within short time after bonding and with high interlayer adhesion laminated body and the manufacturing method of laminated body, and part group.A kind of laminated body, with the substrate treated by active energy ray and the hardening layer of moisture hardening type polyurethane hot melt resin composition, the moisture hardening type polyurethane hot melt resin composition contains isocyanate group with urethane prepolymer (i), the urethane prepolymer (i) is with polyol (A) and polyisocyanate (B) as raw material, the polyol (A) with crystalline polyester polyol (a1) and amorphous polyester polyol (a2) as essential component, the alpha value represented by following formula (1) is in the range of 8.0-11.0.

The present invention provides an active energy ray curable resin composition, cured product, laminate, and article that exhibits excellent adhesion to the substrate and excellent scratch resistance and coating hardness in the cured product. [Solution] An active energy ray curable resin composition comprising (meth)acryloyl group-containing silica particles (A), at least one compound (B) selected from the group consisting of polyfunctional (meth)acrylate, urethane (meth)acrylate, and acrylic (meth)acrylate, and a photopolymerization initiator (C), wherein the particle size of the (meth)acryloyl group-containing silica particles (A) at D10 is 7 to 43 nm, the hydroxyl value of the polyfunctional (meth)acrylate is 300 mg KOH / g or less, and the mass ratio of the (meth)acryloyl group-containing silica particles (A) to the compound (B) is 80 / 20 to 60 / 40.

The present application relates to a kind of five-ring thiazole indole ketone piperazine amide derivatives and purposes thereof.The derivatives take ethyl cyanoacetate as starting material, generate hydroxylamine compound (A) under the action of sodium nitrite and phosphoric acid;Obtain 2-amino ethyl cyanoacetate (B) by reduction, in turn with acetic anhydride, lawson reagent is reacted, and 5-amino-4-carboxylate thiazole compound (D) is obtained;After bromination by NBS, under the catalysis of phosphorus oxychloride, react with tetrahydropyridine indole ketone, generate 2-bromo-6,7-dihydrothiazolo [5'',4'':4',5'] pyrimido [1',2':1,2] pyrindo [3,4-b] indole-4 (12H) -ketone (F), again under alkaline condition, first with Boc piperazine, then by Boc treatment and obtain compound (H);Finally, react with acyl chloride, and 28 different substitution structures of five-ring thiazole indole ketone piperazine amide compound (I1-I28) are synthesized.The 28 compounds are tested on three kinds of cancer cells, and the results show that: 28 compounds have significant inhibitory activity on Hela cervical cancer cells, HT-29 human colon cancer cells and HGC-27 human gastric cancer cells.

The application discloses a 5-position linked naphthalene diisocyanate, a halogenated naphthylamine or a phenolic hydroxyl naphthylamine, which is subjected to an acylation reaction, then subjected to an Ullmann coupling reaction in the presence of a ligand and an inorganic base and under the protection of an inert gas by using a metal or a salt thereof as a catalyst, subjected to amide hydrolysis, and then subjected to a carbonacylation reaction with a carbonacylation reagent to obtain the 5-position linked naphthalene diisocyanate. The application further provides a synthesis method of the 5-position linked naphthalene diisocyanate. The application further provides an application of the 5-position linked naphthalene diisocyanate in preparation of urethane rubber and elastomer, urethane fiber, cast urethane rubber, urethane emulsion and paint, urethane adhesive, shock-absorbing foam material, energy-absorbing foam material and damping foam material. The polylinked naphthalene urethane prepared by using the 5-position linked naphthalene diisocyanate has high cohesive energy and impact modulus, and can be widely applied to high dynamic load and heat-resistant occasions.

The present invention provides a curable resin composition containing a vinyl polymer having a reactive silyl group, which exhibits excellent weather resistance and good extensibility. [Solution] A curable resin composition comprising a vinyl polymer (A), wherein the vinyl polymer (A) has a main chain having repeating units of polymerizable vinyl monomers and reactive silyl groups bonded to the vinyl polymer main chain via a urethane structure, and the vinyl polymer (A) is a polymer obtained by silylation of the plurality of hydroxyl groups of a vinyl polymer (a) having a plurality of hydroxyl groups and a weight-average molecular weight / hydroxyl value of more than 4,000.

The application provides a microcapsule, a composite fabric, a preparation method of the composite fabric and a summer quilt. The preparation method of the composite fabric comprises the following steps: A1, treating the top surface and the bottom surface of a moisture-permeable layer by using oxygen plasma; A2, adding microcapsules and a crosslinking agent into water to obtain a sticky liquid; coating the sticky liquid on the bottom surface and the top surface of the moisture-permeable layer in a dotted form, bonding the moisture-permeable layer and a moisture-removing and air-permeable layer by taking the top surface of the moisture-permeable layer as a bonding surface, bonding the moisture-permeable layer and a skin-friendly cool layer by taking the bottom surface of the moisture-permeable layer as a bonding surface, drying and hot pressing; the microcapsule comprises a core material and a shell covering the outside of the core material, the core material comprises a glue, and the glue is selected from glue A or glue B or a combination of the two, the glue A is a solvent-free moisture curing reaction type polyurethane hot melt adhesive, and the glue B is an acrylate with an epoxy group and / or a urethane group. The application can guarantee the moisture permeability and air permeability of the composite fabric.

Provided is an electroconductive resin composition which can be cured at low temperatures (e.g., 50-100°C) and gives a cured object having excellent electrical conductivity and excellent flexibility. The electroconductive resin composition comprises the following (A) to (D) components. (A) component, a urethane (meth)acrylate having two or more (meth)acryloyl groups in the molecule; (B) component, a polyfunctional (meth)acrylate (which is not a urethane (meth)acrylate) having a skeleton derived from a polyalkylene glycol; (C) component, electroconductive particles; (D) component, a thermal radical generator.

The present invention relates to an aqueous composition for preparing a coating comprising a rheology control agent comprising a urethane polymer. The reagents are discontinuously prepared by a polymerization reaction of diisocyanate compounds and polyhydroxylated compounds followed by a termination reaction of prepolymers of these compounds with monohydric alcohols. The agent mainly comprises a urethane polymer strictly comprising more than three polyhydroxylated compound groups.

A urea-containing polyurethane acrylate resin is provided, which is prepared by: amide-forming the isocyanate groups in a polyurethane acrylate polymer with an amine compound to form urea groups, wherein the polyurethane acrylate polymer is prepared by reacting a hydroxyl-containing (meth)acrylate compound with a urethane prepolymer, the urethane prepolymer is prepared by reacting an isocyanate compound with a polyol compound, and the equivalent ratio of the isocyanate groups in the isocyanate compound to the hydroxyl groups in the polyol compound is 15:1 to 1:1. A urea-containing polyurethane acrylate resin, a composite material, and a method for preparing a composite material are also provided.

The invention relates to the field of chemical industry, and discloses a preparation method of ethylenediamine carbamate, which comprises the following steps: 1) introducing an absorption liquid containing 1, 3-dimethyl-2-imidazolinone and ethylenediamine and a mixed gas containing CO2 into the bottom of a reactor to form a gas-solid-liquid three-phase mixture; (2) carrying out gas-liquid-solid separation; (3) carrying out solid-liquid settling separation; the method comprises the following steps: washing solid-phase slurry containing ethylenediamine carbamate and 1, 3-dimethyl-2-imidazolinone with ethanol, and centrifuging; and evaporating the obtained ethanol containing the 1, 3-dimethyl-2-imidazolinone, and drying a solid phase to obtain the ethylenediamine carbamate. According to the principle of mutual solubility and boiling point difference, solid-liquid separation of the product and low-temperature purification of the ethylenediamine carbamate are realized; the ethylenediamine carbamate prepared by the method has the advantages of high product yield, high purity, few byproducts, simple operation, mild reaction conditions, clean process and low energy consumption, and the solvent and the detergent can be recycled in the system without being discharged.

The present application relates to the field of frother, in particular to a kind of copper flotation collector frother and preparation method thereof, by weight parts, including the following raw materials: N,N-dibutyl dithiocarbamic acid propyl cyanurate 100-120 parts, O-butyl-N-isobutyl thiopropyl carbamate 12-18 parts, xanthate 12-18 parts, phosphate ester polypropylene glycol ether 15-20 parts, modified betaine 5-8 parts, alcohol ether 3-5 parts, slime inhibitor 1-3 parts, alcohol ether carboxylate 2-5 parts, sorbitan monooleate 0.8-1.2 parts. Through the synergies of each raw material, the collector capacity, selectivity in copper flotation process can be effectively improved, and the reagent stability is good.

The object of the present invention is to provide an active energy ray curable coating composition for metal substrates that exhibits good hardness, processability, and weather resistance of the cured coating film, as well as laminates and molded processed members using the same. Another object of the present invention is to provide an active energy ray curable coating composition for metal substrates that exhibits good coating film properties even when an ultraviolet absorber is used, and that does not cause precipitation of the ultraviolet absorber during storage, thus exhibiting good storage stability. [Solution] An active energy ray curable coating composition for a metal substrate comprising a binder component (A) and an ultraviolet absorber (B), wherein the binder component (A) comprises a urethane (meth)acrylate (A-1), a radical polymerizable monofunctional monomer (A-2) having an alicyclic structure, and a radical polymerizable monofunctional monomer (A-3) having a heterocyclic structure and a homopolymer glass transition temperature (Tg) of 20°C or higher, and a coated laminate using the same.

The present invention relates to rheology modified dicarbamate compounds. The invention also provides an aqueous composition comprising the dicarbamate compound according to the invention, and a method for controlling the viscosity of an aqueous composition using the dicarbamate compound according to the invention.