108 results about "Octanoic Acids" patented technology

The invention discloses weather-resistant and medium-resistant alkyd resin varnish and a preparation method thereof. The varnish is prepared from the following raw materials: modified alkyd resin, a composite drier, zirconium iso-octoate with the purity of 12%, an anti-skinning agent, 200 # solvent oil and xylene. The modified alkyd resin is prepared from the following raw materials: soya oil acid, pentaerythritol, benzoic acid, pyrrolidine-2-one-1-acetic acid, dimethylbenzene and a 200 # solvent. According to the invention, pyrrolidine-2-ketone-1-acetic acid is used as a binary acid component to partially or completely replace traditional phthalic anhydride, so that the reaction efficiency of alkyd resin synthesis can be improved, and the problems of yellowing, pulverization and poor water resistance of traditional alkyd resin can be solved; according to the varnish prepared by the invention, on the basis of maintaining the inherent gloss, flexibility and constructability of alkyd resin, the key properties such as weather resistance, water resistance and acid resistance are improved; the whole preparation process of the varnish continues to use mature alkyd resin production equipment and flow, and has good economical efficiency and industrial popularization prospects.

Methods improve cognitive functioning, for example, at least one of episodic memory, executive function, or language skills; supporting memory and / or recall; providing energy and / or ketones to the brain; and / or preventing and / or treating mild cognitive impairment (MCI) in an individual. A composition comprising medium chain triglycerides (MCTs) can be administered to the individual in a daily dosage providing from about 15 g to about 45 g MCTs. The MCTs can include from about 51 wt % to about 90 wt % of octanoic acid. The daily dose can be provided in at least two servings, for example, 2 or 3 servings. Each serving can provide about 15 g MCTs and can include octanoic acid and decanoic acid in a weight ratio of, for example, about 60:about 40. The individual can be 65 years or older and / or have mild cognitive impairment (MCI).

A lubricating fluid composition comprising i) a diester of polyethlene glycol esterified with a mixture of octanoic and deconoic acid where the polyethylene glycol may have 2-12 ethylene units and ii)

This invention discloses a compound, octanoic acid 4-methyl-5-thiazole ethyl mercaptan ester, with the specific chemical structure shown below: The aromatic compound is mainly used in food flavorings.

The invention discloses p-toluenesulfonic acid 8-tert-butyl diphenyl silyloxy-7-methyl octyl ester as well as a synthesis method and application thereof, and relates to the technical field of biopesticides. The preparation method comprises the following steps: taking 8-bromocaprylic acid as an initial raw material, and firstly reacting with t-BuOK and 18-crown ether-6; then reacting with pivaloyl chloride to generate acid anhydride, and then carrying out acylation reaction with 4-benzyl oxazolidine-2-ketone; then carrying out diastereoselective methylation; then, NaBH4 reduction is carried out; carrying out hydroxyl protection; then carrying out hydroboration oxidation reaction; and then carrying out TsCl sulfonylation, so as to synthesize the p-toluenesulfonic acid-8-tert-butyl diphenyl silyloxy 7-methyl octyl ester. The optical purity of the (S)-p-toluenesulfonic acid 8-tert-butyl diphenyl silyloxy-7-methyl octyl ester synthesized in the invention reaches 98%, and the optical purity of the (R)-p-toluenesulfonic acid 8-tert-butyl diphenyl silyloxy-7-methyl octyl ester synthesized in the invention also reaches 98%.

The invention belongs to the field of novel functional polymer materials, and discloses a preparation method of a selenium-containing polymer material capable of fixing metal ions, and the preparation method comprises the following steps: S1, adding PTMEG into a round-bottom reaction flask filled with inert gas, and placing the round-bottom reaction flask in an oil bath pan for melting; s2, MDI, dimethylglyoxime, DSe and anhydrous N, N-dimethylacetamide are sequentially added and fully mixed; s3, stannous octoate and CuCl2 are added at the same time; s4, keeping the temperature of the oil bath pan and continuously reacting; s5, after the reaction is finished, a polymer is precipitated out, and secondary cleaning is conducted through methyl alcohol. The preparation method has the advantages that oximido is introduced into a polyurethane molecular structure to fix metal ions, meanwhile, selenium is introduced in a covalent fixation mode, and through double-site introduction of the metal ions and the selenium, the molecular structure of the polyurethane is greatly improved; the NO catalytic release rate of the material can be regulated and controlled, so that the biocompatibility and applicability of the polymer material in a blood environment are improved, and the application scene is further widened.

The invention discloses a carbon dioxide capturing agent based on organic amine as well as a preparation method and application thereof. The carbon dioxide capturing agent is prepared from the following raw materials in parts by weight: 60 to 80 parts of organic amine, 10 to 20 parts of octanoic acid, 3 to 7 parts of carbon powder, 5 to 10 parts of urea, 10 to 20 parts of polyethylene glycol 400, 1.8 to 4 parts of polyethylene glycol monooleate, 2 to 4.05 parts of choline chloride and 40 to 60 parts of solvent. The absorption performance and regeneration effect of the capture agent on carbon dioxide can be improved.

The invention provides antimicrobial composition comprising (a) a first active ingredient, wherein in the first active ingredient is selected from the group consisting of petroleum jelly, EpiCeram® emulsion, and / or glycerin, and (b) a second active ingredient selected from the group consisting of 1-octanoyl-rac-glycerol, 1-decanoyl-rac-glycerol, glycerol monolaurate (GML), rac-glycerol 1-myrstate, glycerol monocaprate, glycerol monocaprylate, glycerol monomyristate, or reutericyclin, wherein the second active ingredient is present at a concentration of 10 μg / ml to 100 mg / ml in the composition. The compositions are useful as antimicrobial agents.

The utility model relates to reaction device processing technical field discloses a reaction device for synthesizing octanoic acid diethylamino ethanol ester citrate, including the reaction kettle, one end of reaction kettle is equipped with the heat dissipation shell, the inner wall fixed connection of heat dissipation shell has the motor, the output fixed connection of motor has the first bevel gear, one side fixed connection of first bevel gear has the worm, the outer wall screw thread connection of worm has the worm wheel, one side fixed connection of worm wheel has the connecting post, one side fixed connection of connecting post has the stirring piece, one side of first bevel gear is provided with the rotating assembly, and the rotating assembly includes the second bevel gear. In the utility model, the motor is started to drive the first bevel gear to rotate, the worm drives the worm wheel to rotate, the stirring piece rotates, and the material for synthesizing octanoic acid diethylamino ethanol ester citrate in the storage tank can be premixed.

The invention belongs to the technical field of microbial fermentation, and particularly relates to bacillus velezensis and application thereof in preparation of ethyl laurate, farnesyl acetate and octanoic acid. The invention provides a bacillus velezensis strain which is preserved in the China General Microbiological Culture Collection Center on October 13, 2025, and the preservation number is CGMCC No. 36155. The bacillus velezensis strain has the advantages that the bacillus velezensis strain is preserved in the China General Microbiological Culture Collection Center on October 13, 2025; the address of the preservation unit is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing; ethyl laurate, farnesyl acetate and octanoic acid can be obtained by fermenting sugarcane juice with the fermentation broth. After subsequent extraction, the method can be used for industrial production.

The present application relates to the field of microbial technology, and particularly to a Pichia kudriavzevii (Pichia kudriavzevii) strain ZB448 and application thereof. Pichia kudriavzevi The Pichia kudriavzevii strain ZB448 provided by the present application has rich ester aroma, especially high content of phenylacetic acid ethyl ester, phenylacetic acid ethyl ester, ethyl acetate and isobutyl acetate, and significantly reduced content of ethyl octanoate; the aroma characteristics generated are strong fruit aroma and honey aroma and weak wine aroma, and the overall aroma is more pleasant and coordinated. The strain is used for fermentation of wheat protein seasoning juice, can effectively increase the content of ester aroma components in the product, weaken the adverse odor of bran koji, increase the content of umami amino acids, so that the product achieves the effect of rich ester aroma, rich aroma, and improved umami, and significantly improves the overall flavor and quality of the product.

Described herein are certain trifarotene fatty acid esters and topical, topical skin care compositions containing one or more such compounds. In some embodiments, after hydrolysis in the skin, the shorter chain trifarotene fatty acid esters release short chain fatty acids such as octanoic acid and lauric acid, known to contribute to penetration enhancement in topical skin delivery. Also described are methods of topically applying the topical compositions to the skin of a subject to inhibit or reduce light aging or acne signs.

The present invention provides a method for treating water that can decompose organic fluorine compounds contained in the water to be treated. [Solution] A method for treating water to be treated, comprising a decomposition step of passing an electric current through water to be treated W1a containing an organofluorine compound and an electrolyte, and having an electrical conductivity of 6.0 mS / cm or higher, to decompose the organofluorine compound in the water to be treated W1a. The treatment method can be used to decompose organofluorine compounds in contaminated water W1A that is contaminated with organofluorine compounds such as perfluorooctanesulfonic acid and perfluorooctanoic acid.

This invention relates to an additive manufacturing method for strain rate-enhanced composite gels, comprising: a) polymerizing silicone oil, boric acid, and octanoic acid at high temperature to prepare a shear-hardening gel; b) introducing the shear-hardening gel into a polyvinyl alcohol aqueous solution and adding chitosan particles, followed by ball milling to obtain a composite gel precursor; c) printing the composite gel precursor using pneumatic extrusion combined with a triaxial motion control system, and then obtaining the composite gel through freeze-thaw treatment. This composite gel precursor is propelled from the nozzle by air pressure in a pneumatic extruder, and the triaxial motion control system enables the deposition of arbitrary two-dimensional patterns and the stacking of three-dimensional structures, overcoming the limitations of traditional strain rate-enhanced composite gels formed by molding and injection molding methods, and endowing it with greater molding freedom and higher molding precision in additive manufacturing.

The invention belongs to the technical field of catalyst preparation, and relates to a lanthanide-doped flaky binary metal catalyst, in particular to a preparation method and application of a binary PdPr catalyst. A one-step synthesis method is adopted, Pd and a metal precursor of a rare earth element Pr are evenly mixed with molybdenum hexacarbonyl and an n-caprylic acid solvent, after an oil bath reaction is carried out for a period of time, centrifugal collection and drying are carried out, and the flaky binary metal catalyst can be obtained. The preparation method disclosed by the invention is simple, few in steps and simple and convenient to operate. The prepared flaky binary PdPr catalyst has more excellent catalytic activity and stability than a monometal Pd catalyst and Pd black in the aspect of value-added conversion of waste plastics, can upgrade and convert the waste plastics into glycollic acid, and has better selectivity and yield.

The utility model discloses a protective octanoic acid post-precipitation filtering device, which comprises a component collecting component, a filtering component, a filtering component, a filtering component, a filtering component, a filtering component and a filtering component, and is characterized in that a groove is formed in the middle of the upper end of the component collecting component; the filtering assembly is arranged on the component collecting assembly, a feeding opening is formed in the filtering assembly, and the filtering assembly is used for filtering fed materials; the two ends of the drainage pipe are communicated with the discharging opening and the feeding opening respectively; and the drainage baffle is arranged above the component collecting assembly and is used for covering the filtering assembly. According to the protection type filtering device after octanoic acid precipitation, the filtering assembly can be covered by the drainage baffle, so that splashing feed liquid can be blocked by the drainage baffle in the working process of the filtering assembly, and the safety is improved.

The invention belongs to the field of bio-based composite materials, and particularly relates to a bio-based film as well as a preparation method and application thereof. The bio-based film is of a double-layer composite structure and comprises an outer layer, the outer layer is formed by cross-linking chitosan and cellulose nanofibers through a cross-linking agent genipin and hydrophobic modification through caprylic acid, and a high-barrier transparent protective layer is formed; and the inner layer is formed by compounding thermoplastic starch and a hydrophobic deep-eutectic solvent consisting of thymol and octanoic acid, so that the heat sealing layer with antibacterial and antioxidant functions is formed.

The invention discloses unsaturated polyester resin for resin diamond and a preparation method thereof, and belongs to the technical field of polyester resin. The high-temperature-resistant maleic anhydride resin is prepared from the following components: maleic anhydride, DCPD, DEG, EG, an antioxidant, a polymerization inhibitor, paraffin, styrene, a composite accelerant and water. The composite accelerant is composed of cobalt isooctanoate, copper isooctanoate and potassium isooctanoate according to the weight ratio of 1: 2-4: 6; the preparation method comprises the following steps: 1) adding maleic anhydride, DEG, an antioxidant and water, heating, adding DCPD, and keeping the temperature; 2) adding EG, MA, DEG, an antioxidant and a polymerization inhibitor, and heating for reaction; and 3) cooling, adding a polymerization inhibitor and paraffin, cooling, adding styrene and a composite accelerator to obtain the unsaturated polyester resin for the resin diamond, and the composite accelerator is obtained by premixing cobalt iso-octoate, copper iso-octoate and potassium iso-octoate according to a weight ratio of 1: 2-4: 6 at 25-60 DEG C. The unsaturated polyester resin for the resin diamond has the characteristics of excellent mechanical property, good air-drying property, high solid content and low linear shrinkage.

The invention relates to the field of cosmetics, in particular to cleansing oil and a preparation method of the cleansing oil. Comprising the following components in percentage by weight: 15%-25% of cetyl ethyl hexanoate, 2%-5% of diisostearyl malate, 8%-12% of ethylhexyl palmitate, 15%-25% of isohexadecane, 10%-20% of rice chaff oil, 0.1%-1% of simmondsia chinensis seed oil, 0.1%-1% of meadowfoam seed oil, 0.1%-1% of silybum marianum seed oil, 0.1%-1% of macadamia nut seed oil, 2%-5% of PEG-7 glyceryl cocoate and 10%-15% of polyglycerol-10 dioleate. The invention discloses cleansing oil and a preparation method thereof, and the cleansing oil comprises the following components in percentage by weight: 20-30% of cleansing oil, 3-6% of polyglycerol-dioctanoate, 0.01-0.1% of ascorbyl tetraisopalmitate, 0.05-0.3% of tocopheryl acetate and 0.1-0.3% of bisabolol. The cleansing oil and the preparation method thereof provided by the invention solve the problems that the cleaning efficiency and the mildness of the existing cleansing oil are contradictory, and the existing cleansing oil lacks antioxidant and repairing effects.

This invention relates to the field of gas leak detection agents, and proposes a micron-sized bubble leak detection agent, its preparation method, and its application. The micron-sized bubble leak detection agent consists of component A and component B. Component A includes the following components by weight: 40-50 parts deionized water, 2-4 parts n-octanoic acid, 1-1.5 parts foaming agent, 0.1-0.2 parts corrosion inhibitor, 0.05-0.08 parts sodium polyacrylate, and 0.02-0.04 parts chelating agent. Component B includes the following components by weight: 40-50 parts deionized water, 0.05-0.1 parts sodium carboxymethyl cellulose, 0.05-0.1 parts xanthan gum, 0.4-0.8 parts polyol, 0.2-0.4 parts octanol, and 0.3-0.5 parts additives. The additives include anionic polyacrylamide and hydrolyzed sodium polyacrylonitrile in a mass ratio of 2:1-2. This technical solution solves the problem of insufficient foam stability in gas leak detection agents in related technologies.

Certain trifarotene fatty acid esters and external, topical skin care compositions containing one or more such compounds are described. In some embodiments, upon hydrolysis in the skin, shorter chain trifarotene fatty acid esters release short chain fatty acids such as octanoic acid and lauric acid, which are known to contribute to penetration enhancement in topical skin delivery. Methods of topically applying the external compositions to the skin of a subject to inhibit or reduce signs of photoaging or acne are also described.

The application relates to the functional coating technical field and discloses a glass reflection heat insulation paint, which comprises A component and B component; the A component comprises, in mass percentage, 45.0%-55.0% of solvent type hydroxyl acrylic resin, 5.0%-8.0% of hexagonal system nanometer cesium tungsten bronze powder, 1.0%-2.5% of anchoring type high molecular super dispersant, 0.2%-0.6% of cerium isooctoate, 0.8%-1.5% of bis (1-octyloxy-2, 2, 6, 6-tetramethyl-4-piperidyl) sebacate, 0.1%-0.3% of a leveling agent and the rest of mixed solvents; and the B component is aliphatic hexamethylene diisocyanate trimer. The application effectively inhibits the photochromic phenomenon of the coating and does not interfere with the crosslinking and curing. In combination with a step-by-step in-situ modification preparation process, competition of metal ions for coordination is avoided, secondary agglomeration of the powder is prevented, and the visible light transmission ratio of the paint film and the heat storage stability of the paint are improved.

The invention discloses application of kapok polysaccharide in preparation of a medicine for treating intestinal barrier related diseases, and relates to the technical field of natural medicinal chemistry. According to the invention, the kapok polysaccharide has the function of protecting intestinal barriers for the first time, so that the application field of kapok can be greatly expanded; the extraction process of kapok polysaccharide is also optimized, a three-phase partition method based on a deep-eutectic solvent is provided, the deep-eutectic solvent composed of lauric acid and one of decanoic acid, nonanoic acid and octanoic acid is used for replacing traditional toxic tert-butyl alcohol, an ammonium sulfate salting-out solution is matched, ultrasonic-assisted extraction is combined, the optimal process parameters are defined, and the extraction efficiency is improved. The method has the advantages of being green, safe and free of toxic residues.

This invention discloses a system and method for preparing molybdenum octoate catalyst, belonging to the field of catalyst preparation technology. The system includes raw material supply, catalyst feeding, reaction, vacuum separation, condensation and collection, nitrogen protection, and circulation reflux units. The raw material is added to the reactor via a transfer pump, and molybdenum acid is added via a feeding hopper. The reactor achieves precise temperature control through heating with heat transfer oil and external circulation heat exchange. The byproduct acetic acid is collected after two-stage condensation and gas-liquid separation in a separator. The gas phase is vented after vacuuming and carbon adsorption. A reflux pump enhances separation efficiency, and multi-node nitrogen protection prevents molybdenum acid oxidation. The method includes raw material supply, nitrogen replacement, circulating reaction, vacuum separation, reflux enhancement, and product discharge steps, controlling the reaction temperature and vacuum degree. This invention improves acetic acid separation efficiency, reduces equipment corrosion, and ensures catalyst activity and product stability, and is suitable for the industrial production of slurry bed residue oil hydrogenation catalysts.

The invention discloses a method for preparing high-purity ethyl lipoate by using ionic liquid. The method comprises the following steps: by taking 6, 8-dichloro ethyl caprylate as a raw material, carrying out cyclization reaction on the 6, 8-dichloro ethyl caprylate and a vulcanizing reagent consisting of sodium sulfide and sulfur by utilizing an ionic liquid, so as to obtain ethyl lipoate; and optionally adding sodium sulfite to remove trisulfide by-products. By adding the ionic liquid, the use of an organic solvent can be thoroughly avoided, the product is easy to separate, and the ionic liquid is a catalyst and a reagent stabilizer and can be recycled. The method has the advantages of mild reaction conditions, simple operation, high product purity (HPLC purity > = 95%), yield > = 95%, and substantial reduction of the discharge amount of three wastes. Meanwhile, the method can meet the requirements of large-scale industrial production, and has remarkable economic and environmental benefits.

The invention discloses an interactive response layered superlattice nanoprobe as well as a synthesis method and application thereof, and belongs to the technical field of nanomaterials and biosensing. The nanoprobe is synthesized through a ligand regulation and control self-assembly strategy, specifically, a platinum source, n-caprylic acid and molybdenum hexacarbonyl are mixed and heated for a reaction, and after the reaction is finished, aftertreatment is conducted to obtain the interactive response layered superlattice nanoprobe. The nanoprobe has a highly-ordered layered superlattice structure, and can generate synergistic change of structure and catalytic activity under different H2O2 concentrations, so that specific interactive response to H2O2 is realized. The nanoprobe is controllable in synthesis process and stable in structure, the interactive response performance of the nanoprobe provides core material support for threshold type detection of biomarkers, the technical problems that a traditional nanomaterial is single in response to substrate concentration change and insufficient in sensitivity are solved, and the nanoprobe has important application value in the fields of biosensing, clinical detection and the like.

The invention discloses a preparation method of high-purity fish serum albumin, which comprises the following steps: precipitating fish serum with octanoic acid to remove impure proteins, loading the supernate to an anion exchange column after passing through a replacement buffer system, carrying out composite gradient elution, then eluting again through a dye ligand affinity chromatography column, and collecting a target protein solution, thereby obtaining the high-purity fish serum albumin. And after gel filtration chromatography, collecting a single main peak, and freeze-drying after filtration sterilization to obtain a high-purity fish serum albumin finished product. According to the method disclosed by the invention, multi-stage technologies such as octanoic acid differential precipitation, composite gradient anion exchange chromatography, dye ligand affinity chromatography column and gel filtration refined purification are organically matched, so that the problem that key impure proteins with molecular weight and isoelectric point similar to those of fish serum albumin are difficult to effectively remove in the prior art is solved; therefore, the product purity is difficult to break through 95%. According to the method, the purity of the fish serum albumin can be stably improved to 98% or above, the total recovery rate is not lower than 65%, the process route is stable, and linear amplification production is easy.

The invention discloses a liquid barium-zinc stabilizer and a preparation method and application thereof, and the liquid barium-zinc stabilizer is prepared from the following raw materials in parts by weight: 5-15 parts of oleic acid, 5-20 parts of p-tert-butylbenzoic acid, 2-8 parts of isocaprylic acid, 5-10 parts of diethylene glycol butyl ether acetate, 5-10 parts of cycloalkane, 5-10 parts of D80, 2-5 parts of zinc oxide, 4-10 parts of barium hydroxide monohydrate, 10-20 parts of barium salt and 2-6 parts of dibenzoylmethane. 15-25 parts of phenol-free phosphite ester and 2-6 parts of an antioxidant. The liquid barium-zinc stabilizer prepared by the invention cannot be subjected to curing reaction with an adhesive to cause degumming, and has excellent heat resistance and heat-resistant stability.

The application discloses a Pediococcus pentosaceus strain derived from high-temperature Daqu and application thereof, the strain is named Pediococcus pentosaceus zqw75, and the preservation number is CGMCC NO.25146.The strain can produce aroma substances such as lauryl acetate, n-heptanol, butyl dodecalactone, benzene acetaldehyde, methyl heptenone and pyrazine, and when the strain is used in combination with commercial sweet wine starter, the relative content of phenylethanol is increased from 8.562% to 10.455%, the relative content of ethyl butyrate is increased from 0.460% to 1.473%, the relative content of ethyl octanoate is increased from 0.754% to 1.672%, the relative content of ethyl n-hexanoate is increased from 0.832% to 3.446%, and the relative content of isoamyl acetate is increased from 0.832% to 2.155%; and the strain can produce aroma substances that are not produced by the commercial sweet wine starter, such as hexanoic acid, butyric acid, octanoic acid, ethyl hexanoate and lauryl acetate.The strain can be applied in the field of liquor making, including pit mud making and liquor flavor substance improvement, and has great industrial application value.

Provided is a method for preparing 8-aminooctanoic acid. Starting from diethyl 2-(6-halohexyl)malonate (III), a crude product of 8-aminooctanoic acid is obtained by a condensation reaction with phthalimide, hydrolysis with dilute sulfuric acid, decarboxylation, and deprotection. High-purity 8-aminooctanoic acid is then obtained by recrystallization in a solvent. The method has the advantages of simplified process, easy availability of raw materials, high yield, ease of separation and purification, less waste, cost-efficiency, ease of industrialization, and the like.