2245 results about "Carbamate" patented technology

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.

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 invention relates to the technical field of fabrics, and discloses a preparation method of a high-elastic anti-wrinkle blended fabric, which comprises the following steps: adding sodium carbonate, an organosilicon quaternary ammonium salt triazine finishing agent and a cotton / spandex blended fabric into water, soaking, then soaking and rolling twice, washing, and then pre-drying and baking to obtain the high-elastic anti-wrinkle blended fabric. The finishing agent contains cyanuric chloride groups, active chlorine atoms of the cyanuric chloride groups can react with hydroxyl groups of the cotton fabric, so that the finishing agent is connected to the surface of the blended fabric through stable chemical bonds, meanwhile, the finishing agent contains a large number of amido bonds, and the amido bonds and carbamate groups of spandex fabric form hydrogen bond interaction, so that the finishing agent can be used for finishing the cotton fabric. The finishing agent can be firmly attached to the surface of the blended fabric and has good washing resistance, the finishing agent is not prone to falling off after multiple times of washing, and the fabric still has high wrinkle recovery angle, moisture regain and good hand feeling and keeps good wrinkle resistance, hydrophilic performance and soft and elastic hand feeling.

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.

The invention discloses a polyurethane-based solid electrolyte as well as a preparation method and application thereof. The polyurethane-based solid electrolyte comprises a metal organic framework three-dimensional skeleton film and a composite polyurethane layer attached to the surface of the metal organic framework three-dimensional skeleton film, the metal organic framework three-dimensional framework film is metal organic framework modified glass fiber cloth; the composite polyurethane layer comprises polyurethane and metal organic framework particles embedded in a macromolecular network of the polyurethane in situ; a carbamate group of polyurethane and a three-dimensional skeleton of the metal organic framework form a hydrogen-bond interaction, so that the ion transmission performance and the mechanical performance are synergistically improved. The polyurethane-based solid electrolyte provided by the invention can promote lithium salt dissociation, inhibit anion migration, improve the ionic conductivity and the ionic transference number, and improve the charge-discharge stability; a large number of repetitive unit carbamate groups in polyurethane and a three-dimensional skeleton form hydrogen-bond interaction to synergistically promote rapid transmission of lithium ions, so that the transference number of the polymer electrolyte is increased, and the ion transmission performance and the mechanical performance are improved.

The invention discloses a bending-resistant, high-rubber and wear-resistant anti-reflection film and a preparation method thereof. The anti-reflection film comprises a base material layer, a hardened layer, a high-refractive-index layer and a low-refractive-index layer which are sequentially stacked, the hardened layer is obtained by coating the base material layer with hardened layer coating liquid and then curing the hardened layer coating liquid; the hardened layer coating liquid is prepared from the following raw materials in parts by weight: 50-80 parts of hardened resin; 10 to 30 parts of flexible resin; 5-20 parts of a modified inorganic nanoparticle dispersion liquid; 3-6 parts of a first photoinitiator; 50 to 100 parts of a first solvent; wherein the flexible resin is flexible vinyl resin which is prepared by modifying epoxy vinyl ester resin through carbamic acid ester. According to the invention, optical design, formula design, thickness design and the like are carried out on a plurality of coatings, so that the requirements of appearance uniformity, hue uniformity and strong bonding force among laminated layers of the three coatings can be met, and the anti-reflection film has excellent antifouling, scratch-resistant, rubber friction-resistant and bending-resistant properties.

The invention provides a compound shown in the following structure, or a tautomer, a stereoisomer, a hydrate, a solvate, a pharmaceutically acceptable salt or a prodrug thereof. These compounds useful as agonists of AT2R, # imgabs0

The invention provides a preparation method of a chain extender containing an imine bond and application of the chain extender in thermosetting polyurethane, and the preparation method comprises the following steps: under anhydrous and anaerobic conditions, mixing a reagent A and a reagent B, adding a solvent, reacting at 25-40 DEG C for 4-6 hours, cooling to room temperature, and carrying out rotary evaporation to remove the solvent to obtain the chain extender, wherein the reagent A is a derivative of benzene, one substituent group is an aldehyde group, at least one of the other five substituent groups is a hydroxyl group or an aldehyde group, and the reagent B is an organic compound containing both amido and hydroxyl group or an organic compound containing both amido and hydroxyl group. When the chain extender is used for preparing thermosetting polyurethane, imine bonds and carbamate bonds can be introduced into one monomer at the same time, so that the thermosetting polyurethane can maintain original excellent mechanical properties, solvent resistance and thermal stability, and also has self-healing and recyclable capabilities; the compatibility is good, and the performance and the application range of the thermosetting polyurethane are widened.

A type of additive based on a fluorinated carbamate prepolymer, a preparation method therefor, and a use thereof in the preparation of a medical fluorinated anticoagulant polyurethane material. The preparation method of the additive comprises: reacting a polyester / polyether diol, a diisocyanate and a fluorinated small-molecule diol, to obtain a carbamate prepolymer having an isocyanate end group, and then capping with a monohydric alcohol having a fluorinated carbon chain, to obtain an additive based on a fluorinated carbamate prepolymer. The additive has a high fluorine content. After being blended with a polyurethane masterbatch, fluorine atoms having low surface energy can be enriched on the surface of the material, and the fluorine atom content on the surface of the material can be as high as 60%. This effectively reduces the adhesion of plasma proteins, cells and platelets on the surface of the material, providing the medical polyurethane material with an excellent anticoagulant effect. In addition, it maintains the excellent mechanical properties of polyurethane, and is thus widely applicable in the preparation of medical fluorinated anticoagulant polyurethane materials.

To provide a urethane (meth)acrylate compound having excellent thermal stability and excellent handleability even though it is made from a polyol with an average number of functional groups of more than 2.0.SOLUTION: A urethane (meth)acrylate compound is a reaction product between a polyol (a1) with an average number of functional groups of more than 2.0 and an isocyanate group-containing (meth)acrylate (a2), and satisfies the formula (1). Formula (1) X+0.2≥Z / Y≥X-0.2, where, X, Y, Z are as follows. X: an average number of functional groups of the polyol (a1), Y: a molar amount of charge of the polyol (a1), Z: a molar amount of charge of the isocyanate group-containing (meth)acrylate (a2).SELECTED DRAWING: None

The invention discloses a polyurethane cleaning-resistant antifouling coating based on an oxime-carbamate bond and a preparation method thereof, wherein the preparation method comprises the following steps: S1. After dehydrating the polyether diol, the polyether diol is mixed evenly with a diisocyanate, heated to 70-80°C, and a polymer A is obtained by reaction; S2. Polymer A, a solvent, a dioxime and a dibutyltin dilaurate catalyst are weighed, mixed evenly, and a polymer B is obtained by reaction; S3. Polymer B is coated on a substrate to form a sample, the prepared sample is placed at room temperature, and then the temperature is raised to 60°C for curing to obtain a coating. The antifouling coating of the present invention has good wear resistance, and the coating can undergo a hydrolysis reaction with seawater based on an oxime-carbamate bond, can meet the demand for the coating to be resistant to cleaning, and can solve the problem of marine organisms adhering to the surface of the hull to cause invasion of alien species.

The invention discloses a composite collecting agent and a preparation method and application thereof, and relates to the technical field of solid waste recycling. The composite collecting agent comprises a main agent, an auxiliary agent and a synergist, and the mass ratio of the main agent to the auxiliary agent is (3-1): (1-2). The mass of the synergist is 0.1%-2.5% of the total mass of the composite collecting agent; the structural formula of the main agent is as shown in formula (I): R-O-C (= S)-NH-R '(I); in the formula (I), R is alkyl, and R'is 3-chloro-1, 2-epoxypropane; the auxiliary agent is a mercaptobenzothiazole derivative. The thiocarbamate and the mercaptobenzothiazole derivative are compounded according to a specific proportion for the first time, a Zn-S shielding layer is destroyed through an intermolecular synergistic effect, and the silver recovery rate is increased; the preparation method is simple and easy to operate, facilitates reduction of the dosage of a single agent and reduces environmental pollution. The foam stability is improved, the flotation efficiency is improved, the selective collection efficiency of the silver-zinc ore is remarkably improved, and the flotation index is improved.

The invention discloses an icaritin carbamate prodrug as well as a preparation method and application thereof, belongs to the field of pharmacy, and particularly relates to an icaritin carbamate prodrug as shown in a formula 3-N or 7-N and pharmaceutically acceptable salts thereof as well as a preparation method and application of the icaritin carbamate prodrug. Specifically, a main metabolic site (3-site or 7-site hydroxyl) of a natural flavone compound icaritin is subjected to structural modification through a chemical synthesis method, and an appropriate group is introduced into the site to form the icaritin carbamate prodrug. Amines adopted by the carbamate are aliphatic amines. Due to existence of a carbamate structure, II-phase metabolism of icaritin in SD rats is reduced, compared with icaritin raw material medicine, the 3-N-01 prodrug has the advantages that oral bioavailability is remarkably improved, the 3-N-01 prodrug is the optimal prodrug, clinical medication is expected to be capable of reducing administration dosage and improving patient compliance, and the 3-N-01 prodrug can be applied to preparation of the SD rats. And an effective strategy is expected to be provided for improving the oral bioavailability of phenolic drugs. # imgabs0 #

The invention discloses a method for recycling rigid polyurethane foam by using an acidolysis method, which comprises the following steps: (1) adding polyol and a catalyst into a reaction container, carrying out nitrogen replacement, and heating to a temperature at which acid / anhydride reacts with carbamate bonds and urea bonds of polyurethane; (2) adding part of rigid polyurethane foam particles, uniformly mixing, adding acid / acid anhydride, and continuously adding the rigid polyurethane foam particles until the rigid polyurethane foam particles are completely added after the rigid polyurethane foam is reacted and dissolved; and (3) finally, cooling, and continuously and completely reacting to obtain the rigid polyurethane foam regenerated polyol. Wherein the catalyst is an acidic molecular sieve. According to the method, rigid polyurethane foam is recycled through an acidolysis method, due to the fact that acidolysis products do not contain toxic aromatic amine and molecular sieves are used as catalysts in the acidolysis method, foam decomposition can be accelerated, the viscosity of the products is reduced, follow-up utilization of the products is facilitated, and meanwhile the molecular sieves can be recycled after being filtered.

The invention relates to the field of emulsions for grainy paper coatings, and discloses a preparation method of a water-based environment-friendly emulsion for a grainy paper coating. The preparation method comprises the following steps: S1, preparing an acrylic carbamate modified monomer from hydroxyethyl acrylate, 2, 4-toluene diisocyanate and diethanol amine; and S2, preparing to obtain the emulsion. S3, obtaining the initiator. S4, deionized water, lauryl sodium sulfate, the emulsion and an initiator are subjected to a polymerization reaction, and an emulsion A is obtained. S5, transferring the emulsion A into a degassing kettle, adding tert-butyl hydroperoxide and vitamin C, and performing oxidation-reduction reaction to obtain emulsion B; and S6, carrying out steam degassing on the emulsion B to obtain the water-based environment-friendly emulsion. The water-based environment-friendly emulsion which is good in stability, glossiness, adhesion fastness, water resistance and weather resistance and low in volatile organic compound content can be prepared, and the preparation method is simple, efficient and environmentally friendly and has wide application prospects and market value.

The invention provides a piperazinyl steric hindrance type liquid-solid phase change carbon trapping agent and a preparation method thereof, and relates to the field of liquid-solid phase change trapping of CO2. Alkylamine and the like are used as raw materials, piperazinyl steric hindrance type organic amine with secondary amino and tertiary amino structures is designed, and the piperazinyl steric hindrance type organic amine is prepared through ring-opening addition, nucleophilic substitution, cyclization, hydrogenation and other reactions. The piperazinyl steric hindrance type organic amine is compounded with a solvent and a functional additive to prepare the piperazinyl steric hindrance type liquid-solid phase change carbon trapping agent. According to the steric hindrance type phase change carbon trapping agent, on the basis of the electron donating effect of alkyl, the absorption rate of trapping CO2 is increased by 2.2 times compared with that of traditional steric hindrance amine (AMP); on the basis of the steric hindrance effect of the tertiary amine site, the hydrogen-bond interaction between carbamate and the solvent is weakened, liquid-solid phase splitting after the aqueous solution carbon capture system absorbs CO2 is promoted, the problem of poor cycling stability of a non-aqueous solvent system is solved, and the capture efficiency and enrichment degree of CO2 are improved.

The invention discloses a composite sunscreen composition with excellent film-forming property and sunscreen stability as well as a preparation method and application thereof, and belongs to the technical field of daily chemicals. The composite sunscreen composition is prepared from inulin lauryl carbamate, bis (lauramide glutamine) lysine sodium, hydroxypropyl trimethyl ammonium chloride hyaluronic acid, an ammonium acryloyldimethyl taurate / VP copolymer, a sunscreen agent, basic grease, and cosmetically acceptable auxiliary materials and a solvent, the sunscreen emulsion prepared on the basis of the composition can quickly form a stable, light, thin and breathable sunscreen film on the surface of skin, solves the problems that a sunscreen agent in a traditional sunscreen product is non-uniform in agglomeration and dispersion, a formed film is rigid and airtight, the sunscreen effect is easy to lose due to sweating / friction, the skin feeling is poor and the like, and has the advantages of high sunscreen stability, excellent water resistance and good skin feeling; the method can be widely applied to preparation of skin care products with a sunscreen effect.

The present invention relates to novel carbamate hydrolases for the enzymatic decomposition of polyurethanes and to an enzymatic process for the complete decomposition of polyurethanes into defined monomers.

The invention belongs to the technical field of hydrogel sensors, and particularly relates to quaternary ammonium salt containing a carbamate structure as well as a preparation method and application of the quaternary ammonium salt. The structural formula of the quaternary ammonium salt is # imgabs0 #; wherein n comprises an integer from 7 to 17; m comprises an integer of 2-4; x comprises Cl, Br, I and F; the quaternary ammonium salt contains a carbamate group and can form a hydrogen bond, so that the quaternary ammonium salt and the generated hydrogel have excellent hydrophilicity and water-retaining property; the hydrogel participating in preparation has excellent fatigue resistance, tensile hysteresis, biocompatibility and antibacterial property.

The invention relates to the technical field of polyurethane compositions, in particular to a chlorotrifluoropropene-based high-temperature-resistant polyurethane composition and a preparation process thereof, and the chlorotrifluoropropene-based high-temperature-resistant polyurethane composition comprises the following raw materials: hydroxylated chlorotrifluoropropene, modified hexamethylene diisocyanate tripolymer, phthalic anhydride polyester polyol, nano silicon carbide whiskers and polyimide microspheres. A fluorine element is introduced into hydroxylated chlorotrifluoropropene, so that the thermal decomposition temperature of the material is remarkably increased, and thermal movement and oxidative degradation of a molecular chain at high temperature are inhibited; meanwhile, a rigid benzene ring structure of bisphenol A dihydroxyethyl ether improves the regularity of a molecular chain and reduces high-temperature softening deformation. The modified hexamethylene diisocyanate tripolymer forms a stable siloxane cross-linked network, so that the thermal stability of the material is further enhanced; in addition, an isocyanate group reacts with hydroxyl to generate a high-density carbamate crosslinking point, so that the regularity of a hard segment is enhanced, and the thermal stability of the material is improved.

The invention belongs to the technical field of automotive coatings, and particularly relates to finishing-free water-based plain finish paint and a preparation method thereof. The water-based blocked isocyanate and the water-based hydroxyl acrylate are crosslinked to form a carbamate bond and construct a three-dimensional hydrogen bond network, so that the mechanical strength, the sagging resistance and the chemical resistance of the finish paint are remarkably improved; amino resin is modified through dialdehyde lignin, hydrophilic groups in the amino resin are eliminated, reversible imine bonds are generated, and the acid-base hydrolysis resistance of the finish paint is enhanced; the polyether-polysiloxane is grafted with the water-based blocked isocyanate, so that the storage stability of the finish paint is ensured, the sagging phenomenon of a vertical surface is inhibited, the surface tension of the finish paint is reduced, orange peel is eliminated, and the integrated performance improvement of high weather resistance, sagging resistance and low orange peel of the finish paint is realized.

According to the method, a polysaccharide derivative bonding type chiral chromatographic column with silica gel surface bonded amylose-tri (3, 5-dichlorophenyl carbamate) as a filler is adopted, a mixed solution of n-hexane and isopropanol is used as a mobile phase, the column temperature is 28-32 DEG C, the flow velocity is 1.1-1.3 ml / min, the column temperature is 20-30 DEG C, the column temperature is 20-30 DEG C, the column temperature is 20-30 DEG C, the column temperature is 20-30 DEG C, the column temperature is 20-30 DEG C, and the column temperature is 20-30 DEG C; an ultraviolet detector is adopted, the wavelength is 205-220 nm, and effective separation of the etomidate intermediate and the enantiomer thereof is achieved. The method is good in detection result accuracy and high in sensitivity, and compared with an existing analysis method, the method is better in separation effect, simpler in mobile phase composition, more durable in chromatographic column and lower in cost, so that a good guarantee is provided for quality control of the etomidate intermediate and etomidate.

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 three-phase makeup fixing spray and a preparation method thereof. The three-phase makeup fixing spray comprises an emulsion layer located on the upper layer, a water layer located on the middle layer and a powder layer located on the bottom layer. The emulsion layer comprises acrylic acid (ester) / allyl methacrylate copolymer AMP salt, polyurethane-1, an emulsifier and an oil-soluble sun-screening agent, functional auxiliary materials and ethanol are dissolved in the water layer, the powder layer comprises oil absorption powder, and the mass of water in the three-phase make-up spray accounts for 60%-64% of that of the three-phase make-up spray; the emulsifying agent comprises bis (lauramide glutamine) lysine sodium and a component A, and the component A is selected from one or more of polyglycerol-10 myristate, inulin lauryl carbamate and inulin lauryl carbamate; the sun-screening agent is prepared from ethylhexyl salicylate and phenyl benzimidazole sulfonic acid. The three-phase makeup fixing spray provided by the invention has the three-dimensional integrated makeup fixing effect of oil control, makeup fixing and sun protection.

The present invention provides an improved low-energy-consumption urea production process by CO2 stripping method. A part of the urea synthesis liquid is sent into the high-pressure CO2 stripper in the high-pressure decomposition and recovery system for stripping and decomposition, and then is sent into the medium-pressure pre-separator after being decompressed by the first hydraulic turbine or / and pressure reducing valve; another part of the urea synthesis liquid is directly sent into the medium-pressure pre-separator after being decompressed by the second hydraulic turbine or / and pressure reducing valve, and the urea solution at the outlet of the medium-pressure pre-separator is sent into the shell side of the urea decomposition heater; a part of the gas phase of the high-pressure CO2 stripper is sent into the high-pressure carbamate condenser, and another part is sent into the tube side of the medium-pressure decomposition heater, and the liquid phase at the outlet of the high-pressure ammonia ejector is also sent into the tube side of the medium-pressure decomposition heater. The carbamate liquid is sent into the high-pressure carbamate condenser after coming out of the tube side of the medium-pressure decomposition heater; the urea solution coming out of the shell side of the urea decomposition heater is sent into the medium-pressure urea rectifying column and then into the low-pressure rectifying column, and then into the slightly positive pressure flash tank. The process of the present invention is simple, low in cost and low in steam consumption.

The invention belongs to the technical field of denitration agents, and particularly discloses a composite denitration agent for an out-of-furnace phase change process and a preparation method of the composite denitration agent. The preparation method comprises the following steps: mixing 60-80 parts of urea, 20-30 parts of a hydrolysis accelerant and 5-15 parts of amino modified zeolite to obtain the composite denitration agent for the external phase change process; the hydrolysis accelerant is coated ammonium carbamate, and the amino-modified zeolite is obtained by modifying an amino-containing silane coupling agent. The prepared composite denitration agent can promote forward proceeding of urea hydrolysis, the conversion rate of urea is increased, and the ammonia yield is increased; the amino modified zeolite can adsorb and activate urea molecules, urea decomposition is transferred to a low temperature, the activation energy of urea decomposition is remarkably reduced, and the reaction rate is increased.

The invention provides a single-component modified silane adhesive as well as a preparation method and application thereof. The adhesive is prepared by mixing the following components: silane modified polyether resin, silane modified polymer resin, a plasticizer, a composite light stabilizer, a filler, a rheological additive, a water removal agent, a coupling agent and a catalyst, the silane modified polyether resin is silane-terminated resin prepared by a hydrosilylation method; the silane-modified polymer resin is a silane-terminated polymer resin containing a urethane bond. The adhesive is excellent in comprehensive performance, the tensile strength of a body is larger than 3 MPa, the elongation at break is larger than 450%, the adhesive is high in adhesion universality to metal base materials, PET films, ceramics, glass, wood floors, PVC, PC, ABS, wood-plastic composite materials and paint faces, the base materials do not need to be specially treated, the damage form is cohesive failure, and the adhesive has good adhesion strength, tear resistance and excellent temperature resistance and is suitable for being applied to the field of wood products. After aging at 120 DEG C for one week, the tensile strength of the body is greater than 3 MPa, the elongation at break is greater than 430%, and the surface layer can be coated after curing.

The invention belongs to the technical field of detection methods, and particularly relates to a liquid chromatography detection method for an idedecalciferol intermediate and impurities thereof. According to the liquid chromatography detection method for the eldecalciferol intermediate and the impurities thereof, a liquid chromatography method is combined with an electrospray detector for detection; chromatographic conditions are as follows: an amylose-tri (3-chlorphenyl carbamate) covalently bonded silica gel chromatographic column is adopted; and carrying out gradient elution by taking water as a mobile phase A and acetonitrile as a mobile phase B. The method for detecting the eldecalciferol intermediate and the impurities of the eldecalciferol intermediate is good in specificity, high in sensitivity and accuracy, good in repeatability and stability and high in analysis speed, the content of the eldecalciferol intermediate and the impurities of the eldecalciferol intermediate can be rapidly and accurately detected, and the blank of detection of the eldecalciferol intermediate and the impurities of the eldecalciferol intermediate in the prior art is filled.

A crystalline polymorph of uric acid characterized by powder X-ray diffraction, Raman spectroscopy and 1H-NMR, the process to obtain said crystalline polymorph starting from ethyl (6-amino-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)carbamate, a pharmaceutical composition containing crystalline polymorph and its use in the prevention and treatment of a cerebrovascular disease.

The present invention provides a coating agent for a vapor deposition film, which contains a urethane resin (A) and an aqueous medium (B), and is characterized in that the urethane resin (A) is a reaction product of a composition that contains a polyester (A3) that is a polycondensate of a polycarboxylic acid component (A1) and a polyol component (A2), an active hydrogen group-containing compound (A4) having a hydrophilic group, and a diisocyanate (A5), the urethane resin (A) has an ester skeleton derived from the polyester (A3), and contains 10-100 mass% of at least one of an aromatic dicarboxylic acid and an acid anhydride thereof with respect to 100 mass% of the total amount of the polycarboxylic acid (A1), and the polyol component (A2) contains an alkylene glycol having 2-6 carbon atoms. The coating agent for a vapor deposition thin film exhibits excellent gas barrier properties and adhesiveness even in a normal state and after a retort treatment.