247 results about "Acetic Acid Esters" patented technology

Compositions for delivering ketone bodies to a subject include one or more beta-hydroxybutyrate salts, one or more acetoacetate salts, beta-hydroxybutyric acid, and optionally acetoacetic acid. The compositions may optionally include one or more ketone body esters, such as one or more beta-hydroxybutyrate esters and / or one or more acetoacetate esters. An example composition contains about 2% to about 98% on a molar basis of the one or more beta-hydroxybutyrate salts and the one or more acetoacetate salts, about 2% to about 98% on a molar basis of the beta-hydroxybutyrate free acid and optionally the acetoacetate free acid, and optionally about 2% to about 98% on a molar basis of one or more ketone body esters.

The invention relates to polyethylene glycol glycerol ricinoleate granules as well as a preparation method and application thereof. The granules comprise first polyethylene glycol glycerol ricinoleate with an HLB (Hydrophile-Lipophile Balance) value of 17-19, second polyethylene glycol glycerol ricinoleate with an HLB value of 12-14, a carrier and vitamin E acetate. According to the invention, fatty acid and / or hydrogenated vegetable oil are / is taken as a nutritional carrier, and polyethylene glycol glycerol ricinoleate with an HLB value of 12-14 is introduced, so that the dispersity of active ingredients with a high HLB value (17-19) in the carrier is effectively improved, and granulation is facilitated; meanwhile, the vitamin E acetate is added, so that the immunity of animals can be enhanced while the effects of resisting oxidation and prolonging the shelf life of the product are achieved. The granules solve the problems that pure products are not easy to mix, inconvenient to use and the like.

The invention discloses an ostrinia furnacalis sex attractant and a preparation method and application thereof.The sex attractant is prepared from sex pheromone and a solvent, and the sex pheromone comprises cis-12-tetradecene acetate, trans-12-tetradecene acetate and tetradecene acetate; the mass ratio of the cis-12-tetradecene acetate to the trans-12-tetradecene acetate is 3: (1-2), and the ratio of the mass sum of the cis-12-tetradecene acetate and the trans-12-tetradecene acetate to the mass of the tetradecene acetate is 3: (0.8-1.2). The sex attractant provided by the invention can significantly increase the trapping amount of Asiatic corn borers, has good stability and accuracy, and can be used for monitoring, early warning, trapping, killing and preventing Asiatic corn borers in South China.

A resin composition contains a resin that includes a monomer unit derived from (A) an acetoacetic acid ester compound including two or more acetoacetic acid ester groups in a molecule and a monomer unit derived from (B) an amine compound including two or more primary amino groups in a molecule, and that has a three-dimensional crosslinked structure in which an acetoacetic acid ester group of the (A) acetoacetic acid ester compound and a primary amino group of the (B) amine compound are condensation bonded.

The invention belongs to the field of polymer chemistry and biological medicine materials, and relates to application of a polymer polysaccharide slow-release carrier in medicinal and edible components and a preparation method of the polymer polysaccharide slow-release carrier. The carrier is composed of phytic acid-genipin cross-linked modified chitosan, tannic acid, sodium lactate, glycerin, vitamin E acetate, sodium alginate and deionized water. The phytic acid-genipin cross-linked modified chitosan is prepared by reacting chitosan with phytic acid and genipin, and has reversible cross-linking and polydentate coordination properties; the tannic acid and the modified chitosan can form a multi-point hydrogen bond and esterification network. The carrier is prepared through sol-gel forming or spray drying, is stable in structure, good in dispersity, high in drug loading capacity, stable in an acid environment and controllable in release under a neutral condition, remarkably improves the slow release performance and bioavailability of medicinal and edible components, and is suitable for functional food and drug delivery systems.

The invention relates to the technical field of skin care essence, in particular to double-layer essence with an anti-aging effect and a preparation method thereof.The double-layer essence with the anti-aging effect is composed of a water phase layer and an oil phase layer; the water-phase layer is prepared from the following raw materials in percentage by mass: 3-8% of hydroxypropyl tetrahydropyrantriol, 0.1-0.5% of tetrahydromethylpyrimidine carboxylic acid, 0.01-0.1% of a pepper kava extract, 1-5% of lactobacillus / soybean milk fermentation product filtrate, 1-5% of vitamin C ethyl ether, 1-5% of acetylchitosamine, 3-8% of 1, 3-butanediol and the balance of water. The invention relates to an anti-aging mask which comprises the following components in percentage by weight: 1-10% of 1, 3-butanediol, 0.01-0.1% of sodium hyaluronate, 0.1-0.5% of a buffer system, 5-10% of glycerol and the balance of deionized The oil phase layer is prepared from the following raw materials: 0.5-2% of ascorbyl tetraisopalmitate, 11-44% of compound plant-derived grease and 0.05-0.3% of tocopheryl acetate, and the problems that existing essence oil is lack of a multi-dimensional synergistic anti-aging effect, and the stability and transdermal absorption efficiency of water-soluble active ingredients and oil-soluble ingredients are difficult to consider are solved.

The application discloses an electronic skin-oriented conductive silver paste and a preparation method and application thereof, and relates to the technical field of flexible printed electronic materials.The raw materials of the electronic skin-oriented conductive silver paste include flaky silver powder, silver nanoparticles, thermoplastic polyurethane elastomer, acrylic elastomer, PEDOT:PSS microgel dispersion, (3-glycidylpropoxy)trimethoxysilane, polydiallyldimethylammonium chloride, hexanedial modified dopamine copolymer, (3-aminopropyl)triethoxysilane, methacryloyloxypropyltrimethoxysilane, cellulose acetate, modified polyurea thixotropic agent, hydrogenated castor oil, ethylene glycol ether acetate, dibasic acid ester, leveling agent and water.The electronic skin-oriented conductive silver paste has the advantages of good electrical performance, good mechanical-electrical stability, good anti-electromigration and sweat corrosion resistance, and can still maintain dendrite-free and low drift under long-term coupling of sweat and bias, and is suitable for electronic skin.

The present invention relates to oct-5-en-2-yl acetate, to the use thereof as an aroma chemical, to the use thereof to impart an aroma to a composition, and to a method for imparting an aroma to a composition. The present invention further relates to a mixture comprising oct-5-en-2-yl acetate and 2-octyl acetate, to the use of said mixture as an aroma chemical, to the use of said mixture to impart an aroma to a composition, and to a method for imparting an aroma to a composition. The present invention is also directed to the use of oct-5-en-2-yl acetate for boosting or modifying the aroma of 2-octyl acetate. The present invention is further directed to a composition comprising oct-5-en-2-yl acetate or the mixture of oct-5-en-2-yl acetate and 2-octyl acetate.

Title: Process for treating keratinous materials using at least one polyester compound with acetoacetate functionalities. The present invention relates to a process for treating keratinous materials comprising applying to said keratinous materials, in one or more successive steps, at least: i) at least one polyester of formula (I) comprising at least two acetoacetate functionalities, as well as its optical, geometric, and / or solvate isomers, such as hydrates, or a composition containing it or them: (Z)–[OC(O)-C(Ra)(Rb)-C(O)-R4]u (I), formula (I) in which Z, u, R4, Ra, and Rb are as defined in the description, and ii) optionally, at least one crosslinking agent. Figure for the abstract: None

The present application provides compositions and methods for treatment of ocular inflammatory conditions, dry eye diseases, and abnormal corneal neovascularization, using etiprednol. In one example, a composition is provided comprising a semi-fluorinated alkane compound such as, e.g., perfluorohexyloctane; and an additive selected from paraffin, propylene glycol diacetate (PGD), a hydroxyalkyl ester of an aliphatic fatty acid, a hydroxyacid alkyl ester, an alkyl ester of a fatty acid, phenethyl alcohol, ethanol, isopropanol, glycerol, propylene glycol, polyethylene glycol, n-butanol, or combinations thereof. Eye drops comprising the compositions are also provided. Methods of using the compositions are also provided and include methods for reducing one or more symptoms of ocular inflammatory conditions, dry eye diseases, or abnormal corneal neovascularization.

The purpose of the present invention is to provide a novel beer-taste fermented alcoholic beverage in which, despite the purine concentration being reduced, deterioration of flavor and aroma, reduction in crispness of bitterness, and intensity of astringency resulting from the reduction in purine concentration are ameliorated. The present invention provides a beer-taste fermented alcoholic beverage having a purine concentration of 35,000 ppb or lower, wherein the iron concentration is 0.02 ppm or greater, and the furfuryl acetate concentration is 3 ppb or greater. According to the present invention, it is possible to provide a beer-taste fermented alcoholic beverage in which the purine concentration is reduced, wherein, despite the purine concentration being reduced, the flavor and aroma are excellent, and crispness of bitterness and intensity of astringency are improved, due to the iron concentration being set to a prescribed value.

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

The invention relates to the field of lipidosome technology and skin external preparations, in particular to bionic ceramide coated retinol lipidosome and a preparation method and application of the bionic ceramide coated retinol lipidosome. The liposome is prepared from the following raw materials in parts by weight: 1.0 to 3.0 weight percent of ceramide NP, 1.0 to 3.0 weight percent of ceramide AP, 0.05 to 0.5 weight percent of ceramide EOP, 1.0 to 3.0 weight percent of cholesterol, 0.50 to 2.0 weight percent of meadowfoam seed oil, 3.0 to 10.0 weight percent of hydrogenated lecithin, 1.0 to 3.0 weight percent of retinol, 0.50 to 2.50 weight percent of tocopheryl acetate, 15.0 to 45.0 weight percent of caprylic / capric triglyceride MCT, 1.0 to 5.0 weight percent of propylene glycol, 15.0 to 45.0 weight percent of glycerol and the balance of water, the bionic layered film is constructed by the multi-subtype ceramide, cholesterol and hydrogenated lecithin, the oil phase and an antioxidant system are cooperated, the stability of retinol under light, heat and oxygen is remarkably improved, slow release is achieved, meanwhile, skin tolerance is improved, and the bionic layered film can be widely applied to essence, emulsion, face cream, ampoule and other external skin care preparations.

The invention relates to a blocked polyurethane composition based on at least one diisocyanate and / or polyisocyanate, at least one polyol, at least one hydroxyl chain extender and at least one end-capping agent, the at least one end-capping agent being selected from malonates, acetoacetates and acetylacetonates, and the at least one polyol is selected from the group consisting of polyester polyols, polycarbonate glycols, and polycaprolactone glycols; a use of the composition; the invention discloses a preparation method of an artificial leather surface layer and the artificial leather surface layer.

Process for making up keratin materials comprising at least the application to said keratin materials of at least two distinct compositions (A) and (B): - said composition (A) comprising i) at least one compound of formula (I) comprising at least two acetoacetate functions; and ii) at least one monoalcohol comprising from 2 to 4 carbon atoms; iii) water; and iv) at least one particulate colorant; and said composition (B) comprising at least v) a crosslinking agent chosen from (poly)amine compounds, notably aminoalkylpolyalkoxysilanes, α,ω-diaminooxaalkanes, chitosans, polyetheramines, polydimethylsiloxanes comprising primary amine groups at the chain end or on side chains

The application provides a synthesis method of active piperidone alkaloid, and the active piperidone alkaloid is Dysidone A. The raw material piperidine is used as a substrate, and the substrate is reacted with p-methoxy benzyl chloride under the condition of N,N-diisopropylethylamine, so that the secondary amine is protected, and the side reaction of sodium hydride and hydrogen on the secondary amine is avoided. Then, the secondary amine is oxidized under the condition of iodine and iodobenzenediacetic acid. Next, the secondary amine is reacted with triethyl phosphine acetic acid ester to obtain an alpha, beta unsaturated ester. Then, the p-methoxy benzyl protection is removed by using ammonium cerium nitrate in a mild and efficient manner. Finally, the ester is reduced into an alcohol by using diisobutylaluminum hydride. The piperidone alkaloid or the like is obtained through five reaction steps. The synthesis process is simple, the raw material is cheap and easy to obtain, the cost is low, the reaction condition is relatively mild, the purity is high, and the method has good economic and social benefits.

The invention relates to the technical field of food, and particularly discloses DHA algal oil PS lutein ester gel candies capable of promoting brain development and improving eyesight and a preparation method thereof.The DHA algal oil PS lutein ester gel candies capable of promoting brain development and improving eyesight are of a three-layer sandwich structure, the slow-release capsule comprises an outer-layer rubber sheet, a middle slow-release layer and an inner core active layer from outside to inside, the outer-layer rubber skin is prepared from gelatin, glycerol, sorbitol liquid, pectin, stevioside, edible essence and water; the middle slow-release layer comprises beeswax, medium chain triglyceride and phospholipid; the inner core active layer is prepared from DHA algal oil, phosphatidylserine, lutein ester oil, (3R, 3 'S)-dihydroxy-beta-carotene oil, starch acetate, a blueberry powder solid beverage and citric acid. The DHA algal oil phosphatidylserine lutein ester gel candy can promote brain development, improve learning and memory, improve concentration, prevent blue light, prevent myopia, improve myopia and relieve asthenopia.

The present application relates to the technical field of synthesis of nitrogen-containing heterocyclic compounds, and particularly relates to a continuous flow synthesis method of nitrogen-containing heterocyclic acetic acid; specifically, nitrogen-containing heterocyclic compounds, halogenated acetic acid ester and inorganic acid binding agent are mixed in an aprotic solvent, and then are introduced into a microchannel of an ultrasonic microchannel continuous flow reactor to perform a substitution reaction under ultrasonic cavitation; after the reaction, the reaction liquid is collected and post-treated to obtain a nitrogen-containing heterocyclic acetic acid ester intermediate; the nitrogen-containing heterocyclic acetic acid ester intermediate is introduced into a second microreactor using an inorganic lye to perform a hydrolysis reaction, and after the reaction, the reaction liquid is collected and post-treated to obtain the nitrogen-containing heterocyclic acetic acid; the present application realizes continuous flow reaction of a heterogeneous system by using emulsification and ultrasonic technology, and can be used for the next step of continuous flow hydrolysis reaction after simple filtration and separation; the present application has high yield of two-step reaction, simple separation, short reaction time, and is suitable for large-scale industrial production.

This invention relates to the field of microbial technology. Specifically, it relates to a highly colonizing and aroma-producing brewing yeast, CX51, and its application in red wine production. This brewing yeast, CX51, is deposited at the China General Microbiological Culture Collection Center (CGMCC) on November 19, 2025, with accession number CGMCC No. 39063. In multi-strain mixed fermentation, CX51 effectively suppresses the proliferation of native brewing yeasts and maintains a significant competitive advantage over commercial brewing yeasts, exhibiting outstanding colonization ability. Fermentation of 'Marselle' wine solely with CX51 significantly increases the content of ethanol esters and acetate esters in the wine, enhancing floral and fruity aromas and optimizing the aroma composition and sensory quality. Brewing yeast CX51 has broad prospects for industrial application in the production of specialty red wines.

The present application relates to the technical field of hydrolysis of hydroxy fatty acid ester, and discloses a hydrolysis filler, a preparation method and application thereof. The hydrolysis filler comprises a silane layer and an active layer which are successively coated on the outer surface of the filler; the active layer comprises amido, pyrrolyl, and sulfhydryl and / or thioether, phosphoric acid group and sulfonic acid group. When the hydrolysis filler is used for hydrolysis of hydroxy fatty acid ester to prepare hydroxy glycolate aqueous solution, the water-ester ratio in the hydrolysis process and the oligomer content in the target product can be effectively reduced.

An object of the present invention is to provide a resin composition that has excellent impregnability into fibers, enables favorable continuous production of a prepreg, and enables production of a prepreg that enables favorable production of a molded article.SOLUTION: A three dimensional crosslinked structure in which a compound (A) having two or more acetoacetic acid ester groups, aldehyde groups, or triketone structures alone or in combination in a molecule and an amine compound (B) having two or more primary amino groups in a molecule are bonded to each other, and a ketimine compound (D) in which at least one primary amino group of the amine compound (B) and a ketone group of the ketone compound (C) are condensation-bonded, wherein among the primary amino groups of the amine compound (B) constituting the ketimine compound (D), a proportion of the primary amino groups bonded to the ketone compound (C) is 1kPa% or more, the ketone compound (C) having a steam pressure at 20 °C of 0. 50mol or more.SELECTED DRAWING: None

Disclosed is a preparation method for cannflavin compounds. The preparation method has the advantages of cheap and easily available raw materials, few reaction steps, short production period, simple operation, etc. The method comprises: firstly, condensing 4′-hydroxy-3′-methoxyacetophenone and diethyl carbonate (DEC) under an alkaline condition to obtain 4′-hydroxy-3′-methoxybenzoyl acetate; reacting 1,3,5-trihydroxybenzene with bromo-isoamylene under an alkaline condition to obtain 2-isopentenyl-1,3,5-trihydroxybenzene; and finally, condensing 4′-hydroxy-3′-methoxybenzoyl acetate and 2-isopentenyl-1,3,5-trihydroxybenzene at a high temperature to produce cannflavin B and / or isocannflavin B, and then subjecting same to separation and purification to obtain pure cannflavin B and pure isocannflavin B.

The present invention relates to a foamable composition based on multifunctional acetoacetate compound, and to its use in structural foam applications. In particular, the present invention relates to a foamable composition based on a multifunctional acetoacetate compound, a polyether polyamine, a monofunctional primary amine and a chemical blowing agent.

The present invention relates to a method for preparing 3-methyl-2-butenal (prenal), 3-methyl-2-buten-1-ol (prenol), diprenyl acetate of prenal, and 3,7-dimethyl-octa-2,6-dienal (citral), wherein the aldehyde content in one or more reaction flows is maintained below a threshold. Furthermore, the present invention relates to available product flows of prenal, prenol, diprenyl acetate of prenal, and citral.

Title: Process for Makeup of Keratinous Materials Comprising the Application of at Least One Acetoacetate Polysaccharide Compound and a Crosslinking Agent. The present invention relates to a process for makeup of keratinous materials comprising at least the application to said keratinous materials of at least two distinct compositions (A) and (B), said composition (A) comprising at least one compound of formula (I) comprising at least two acetoacetate functional groups, at least one monoalcohol comprising 2 to 4 carbon atoms, and water, and said composition (B) comprising at least one amine crosslinking agent, with at least one of compositions (A) and (B) comprising at least one particulate coloring agent. Figure for the abstract: None

The invention belongs to the technical field of cosmetics, and discloses a vitamin E emulsion and a preparation method thereof, the vitamin E emulsion comprises the following components by mass: 0.5-2 wt% of vitamin E and derivatives thereof, 10-20 wt% of a stabilizer, 10-20 wt% of a humectant, 3-6 wt% of an emulsifier, 0.3-1 wt% of a thickener, 0.5-1 wt% of a preservative, and the balance of water; wherein the vitamin E and the derivative thereof comprise at least one of vitamin E, tocopheryl acetate, tocopheryl linoleate, tocopheryl nicotinate and tocopheryl phosphate; the stabilizer comprises at least one of petrolatum, polydimethylsiloxane, hydrogenated polyisobutene, caprylic / capric triglyceride and butyrospermum parkii butter. Through the components, the antioxidant activity of vitamin E in the storage and skin retention process of the vitamin E milk can be effectively maintained.

The application belongs to the field of polymer materials, and provides an environmentally-friendly polymer material with adjustable dynamic network and a preparation and closed-loop recycling method thereof, which comprises the following steps: carrying out a photopolymerization reaction of acetoacetic acid alkene and different functionality mercaptans in a solvent to obtain acetoacetic acid ester multimers with different functionality; carrying out a crosslinking reaction of the acetoacetic acid ester multimers and polyamine monomers in a solvent to obtain a prepolymer; curing the prepolymer to obtain a Vitrimer polymer film; and annealing, and the environmentally-friendly polymer material with adjustable dynamic network is obtained.The acetoacetic acid ester multimers with different branching conditions are prepared through ene click reaction, different network structures are given to the material, the network is adjusted, the dynamic and mechanical properties of the network are controlled, and the introduction of the vinyl amine ester bond into the polymer network provides a possibility for the closed-loop recycling upgrade of the polymer network.

A method for producing bis(2-hydroxyethyl)terephthalate is disclosed. The method includes recovering and reusing ethylene glycol with an acetate removed, after the glycolysis of a waste polyester. According to the method, an acetate is not concentrated even though ethylene glycol is reused in a continuous process, leading to bis(2-hydroxyethyl)terephthalate with excellent purity and quality.

The application discloses a high-permeability composite flavone composition and a preparation method and application thereof, and relates to the technical field of cosmetics. The application discloses a high-permeability composite flavone composition, wherein the composite flavone composition comprises flavones, lecithin, glycerol, propylene glycol, caprylic acid / capric acid triglyceride, tocopherol acetate and water; the flavones are total flavones of Sanguisorba officinalis and total flavones of Pericarpium Citri Reticulatae. In the process of extracting the flavones, ultrafine grinding and high-pressure microjet are combined, Sanguisorba officinalis and Pericarpium Citri Reticulatae are treated by using the ultrafine grinding, and Sanguisorba officinalis solution and Pericarpium Citri Reticulatae solution are treated by using the high-pressure microjet, so that the content of the flavones in the extract is increased.

This propylene glycol monomethyl ether acetate composition contains propylene glycol 1-monomethyl ether 2-acetate, and has an absorbance of 0.030 or less at 259 nm as measured after the propylene glycol monomethyl ether acetate composition has been submitted to the following test. (Test) The propylene glycol monomethyl ether acetate composition is heated to 80°C in a container made of borosilicate glass in a nitrogen atmosphere, and kept in that condition for 275 hours.