94 results about "Isobutyrates" patented technology

The present invention relates to an environmentally friendly shell powder functional coating, a preparation method therefor and uses thereof. The coating comprises: bisphenol A-epon, modified shell powder, vegetable extract, propyl silicone emulsion, a nano additive, a modified organic micro powder agent, a surfactant, dioctylphthalate, 3, 3'-(4-trifluoromethyl methyl)-bi-4-hydroxy coumarin, 2,2,4-amino trimethyl-1,3-isoprene glycol mono iso-butyl methacrylate, butyl acetate, ethanol, trimethylol propane triacrylate, N-ammonia amino ethyl piperazine, polydimethylsiloxane and deionized water. In the present invention, by modification of a variety of components and materials, selection and collocation of specific components and a specific preparation method, the variety of components exert a synergistic effect, so as to make the prepared coating have significant antimicrobial, environmental-cleaning and wear-resisting properties. The coating has a huge application potential and extensive value in industrial production.

The invention is comprised of a coalescent and non-ionic surfactant blend additive for use in water-based architectural coating formulations. The dual-function blend is produced by reacting 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate with ethylene oxide in the presence of a basic catalyst and separating the desired ethoxylated coalescent and non-ionic surfactant blend from the reaction product.

The invention relates to a preparation method of a solid acid catalyst applied to the producing of 2,2,4-trimethyl-1,3-pentanediol diisobutyrate. The preparation method comprises the steps: firstly, preparing a TiO2-ZrO2 compound carrier; enabling the obtained TiO2-ZrO2 compound carrier to react with 0.5mol/L H2SO4; performing suction filtration to filter a solid product out; vacuum drying and roasting to obtain the solid acid catalyst. The method disclosed by the invention has the advantages of convenience and easiness in operation and lower cost; the catalyst has the characteristics of highactivity and selectivity, and reutilization; the defects of serious equipment corrosion, generation of a lot of effluent, environmental pollution and the like caused by using concentrated sulfuric acid as a catalyst are overcome; industrial prospect is very good.

The invention discloses a synthesis method of perfluoroisobutyronitrile, comprising the following steps of: (1) carrying out a reaction between oxalyl chloride monoester and fluoride salt in a solventto obtain oxalyl fluoride monoester; (2) carrying out a reaction between oxalyl fluoride monoester and hexafluoropropylene in a solvent by taking fluoride salt as a catalyst to prepare heptafluoro-2-carbonyl-3-methylbutyrate; (3) carrying out catalytic decarbonylation on heptafluoro-2-carbonyl-3-methylbutyrate in a solvent through cesium fluoride, so as to obtain heptafluoroisobutyrate; and (4) carrying out a reaction between heptafluoroisobutyrate and ammonia, and dehydrating to obtain perfluoroisobutyronitrile. The synthetic method has the advantages of easily available raw materials, mildreaction conditions, high raw material conversion rate and product yield, safe and simple process operation, and easy realization of industrial production.

The invention relates to a preparation containing: (i) a composition containing (a) one, two or a plurality of compounds selected from the group consisting of (a1) alcohol monoterpenes of formula (I) in which R1 is H or methyl, R2 is H or C₂-alkenyl, and R3 is a linear or branched, saturated or unsaturated hydrocarbon radical with 4 to 10 carbon atoms, and the enantiomers, diastereomers, racemates, solvates and physiologically compatible salts thereof, and/or (a2) bicyclic epoxy-monoterpenes, (b) at least two lactones of formula (II) in which R4 is H or methyl, R5 is a linear or branched, saturated or unsaturated hydrocarbon radical with 2 to 10 hydrocarbon atoms and n is the number 1 or 2, and the enantiomers, diastereomers and racemates thereof, (c) one, two or a plurality of solvents selected from the group consisting of ethanol, water, dipropylene glycol (DPG), diethyl phtalate (DEP), propylene glycol (PG), isopropyl myristate (IPM), isopropyl palmitate (IPP), triethyl citrate (TEC), triacetin (TRI), 1,2-Propanediol, 1,3-Propanediol, Propanethiol, Pentanediol, Hexanediol, Octanediol, Decanediol (SymClariol®), Dodecanol, 4-hydroxy-acetophenone (SymSave® H), glycerine, butylene glycol, pentylene glycol, hexylene glycol, decylene glycol, propylene carbonate, butylene carbonate, glycerine carbonate, 2-5 benzyl heptanol, lauryl alcohol, trimethyl-hydroxypentyl-isobutyrate, glyceryl-caprylate, ethylhexyl glycerine, benzyl benzoate (BB), and optionally (d) other flavouring agents or aromatic substances selected from the group consisting of 3-phenylbutanal (Trifernal), acetyl methyl carbinol, anethole, anisyl acetate, dihydroeugenol, linalyl formate, 2-methyldecanal, 2-benzyl-2-methylbut-3-ene nitrile (Ci-trowanil® B), 3-hexenyl acetate, styrallyl acetate, belanis, citronellal, cinnamyl acetate, rhubafuran, beta-ions, anther, prenyl acetate, 2-phenyl propanal, 4-(4-hydroxyphenyl)butan-2-one (Frambinon®), ethyl phenoxyacetate, isoralderine, gamma-terpinene, limonene, neocyclocitral, methyl lavender ketone, styrallyl propionate, phenyl ethyl propionate, limonenal, 4-isopentylcyclohexanol (Symrose®), 4-methyl-2-phenyl-3,6-dihydro-2H-pyran/4-methylene-2-phenyl-tetrahydropyrane (Rosyrane super), hydrocitronitril, phenoxanol, isoamyl phenylacetate, damascone, silvial, nectaryl, ambroxide, acetyl pyrazine, trimethyl pyrazine, isoamyl acetate, para-cresyl methyl ether, filbertone, cyclohexyl acetate, heliotropin, acetophenone, anisaldehyde, para-methyl acetophenone, veratraldehyde, methyl anisate and vertoprenal; (ii) aldehydes of formula (III) in which R6 is a saturated or non-saturated, linear hydrocarbon radical; and/or (iii) free fatty acids of formula (IV), in which R7 is a linear or branched, saturated hydrocarbon radical.

The invention discloses a self-closing type polymer cement waterproof coating. The self-closing type polymer cement waterproof coating is prepared by mixing a powder material and a liquid material at a weight ratio of 1:1, wherein the powder material comprises the following components in parts by weight: 45 parts of cement, 45 parts of quartz powder, 40 parts of filler and 10 parts of active master batch FLW and the liquid material comprises the following components in parts by weight: 90 parts of acrylic emulsion, 0.5 part of wetting agent SILCOWET065, 5 parts of trimethyl pentanediol diisobutyrate, 0.5 part of silicone antifoaming agent, 0.5-0.8 part of water-retaining agent and 20 parts of water, wherein the water-retaining agent is alkyl biphenyl ether sulfonate, fatty alcohol polyoxyethylene ether sulfate or alkyl phenol ether sulfosuccinate ester salt. The self-closing time of the self-closing type polymer cement waterproof coating film is 4 hours, the initial setting time is more than 45 minutes, after coating is applied, the self-closing type polymer cement waterproof coating has good adhesive properties and the adhesive strength is 0.7MPa.

The invention discloses a continuous production method for 2,2,4-trimethyl-1,3-pentanediol isobutyrate. A two-step method fixed bed continuous reaction process and a solid catalyst are adopted, wherein the catalyst is a solid catalyst Cs-K/SiO2 which is prepared by taking spherical silicon oxide as a carrier to carry caesium-potassium double-alkali metal active components. The method comprises the following steps: adopting two serial tubular type fixed bed reactors, firstly feeding a preheated isobutyraldehyde raw material into a first tubular type fixed bed reactor for an aldol condensation reaction, subsequently feeding an obtained an aldol condensation product into a second tubular type fixed bed reactor for intramolecular Cannizzaro reaction, and continuously reacting so as to obtain a target product. Due to adoption of a two-step method fixed bed continuous reaction process, the method is not only high in isobutyraldehyde conversion rate and product selectivity, but also high in production efficiency, simple in reaction operation, beneficial for energy conservation and discharge reduction and has a large-scale continuous industrial production prospect.

The invention discloses an esterified weak acid catalyst for synthesizing 2,2,4-trimethyl-1,3-pentanediol diisobutyrate and a preparation method thereof. The weakly acidic solid catalyst is prepared by compounding modified attapulgite and ammonium vanadate. The method disclosed by the invention is simple in catalyst preparation process and low in cost, the catalyst has the advantages of being highin activity and selectivity, easily recyclable, reusable and the like, the defects that the equipment corrosion is serious and the amount of product impurities is large when concentrated sulfuric acid and super-strong solid acid are used as the catalyst, lots of waste liquor is produced, the environment is polluted and the like are overcome, and the industrial prospects are excellent.

The invention discloses an on-line coated three-layer co-extruded BOPET film with high temperature resistance and low precipitation. The BOPET film comprises a PET base layer and layers having high temperature resistance and coating the surfaces of the two sides of the PET base layer on line, wherein the layers with high temperature resistance are made of paint with high temperature resistance; the paint with high temperature resistance uses organic silicon resin molecules and bisphenol A epoxy resin as raw materials, and organic silicon resin and epoxy resin both have good heat resistance; and a wear-resistant filler and a migration-resistant plasticizer are prepared at the same time, the wear-resistant filler coats the surface of graphene with nano-silica to improve the wear resistance of the BOPET film, and the migration-resistant plasticizer is prepared from isobutyraldehyde by conducting an aldol condensation reaction at first and a Tishchenko reaction next to obtain 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and subjecting 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and isocaprylic acid to an esterification reaction, so the service life of the BOPET film is prolonged.

The invention relates to a preparation method of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, which comprises the following steps: (1) adding alkali metal hydroxide, alkaline earth metal oxideand alcohol ester-12 product into a reaction container, and uniformly stirring the materials; (2) adding isobutyraldehyde, controlling the feeding speed of isobutyraldehyde, controlling the temperature to be 20-70 DEG C, and carrying out a first-stage isobutyraldehyde condensation reaction to obtain an intermediate product; (3) after the isobutyraldehyde is completely added, controlling the temperature to be 40-70 DEG C, keeping the temperature for 1-5 hours, and carrying out a second-stage Canichalro reaction to obtain an alcohol ester-12 crude product; and (4) purifying the alcohol ester-12crude product to obtain an alcohol ester-12 finished product. According to the invention, alkali metal hydroxide is used as a catalyst, alkaline earth metal oxide is added to remove moisture in the material, and alcohol ester-12 is added and the feeding speed of isobutyraldehyde is controlled in the reaction process, so that the temperature of the condensation reaction of isobutyraldehyde is controlled, and the preparation method of alcohol ester-12 is enlarged to industrial production from laboratory lab test.

The invention relates to a mixed organic solvent for preparing high-temperature sintered conductive paste, and belongs to the technical field of oily organic solvents. The mixed organic solvent comprises 10-60 wt% of fatty acid ester containing a phenyl ether structure, 10-60 wt% of butyl carbitol acetate, 0.1-10 wt% of at least one of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, 10-30 wt% of dimethyl adipate, 0.1-0.5 wt% of gamma-methacryloxypropyltrimethoxysilane and 0.5-1.5 wt% of silicone oil. The mixed organic solvent has the advantages that the solvent has the characteristics of good resin solubility, good wettability to metal particles, no volatilization at room temperature, stable volatilization at high temperature and the like, various types of resin commonly used by photovoltaic front silver paste can be well dissolved, and experiments prove that compared with a traditional single solvent system, the solvent is more suitablefor the requirements of silver paste printing and sintering; and the solvent is simple in reaction condition and high high product yield, and has favorable application prospects in the photovoltaic industry and electronic conductive paste related fields.

The invention discloses a synthetic method of perfluoroisobutyronitrile. The synthetic method comprises the following steps of: (1) taking hexafluoropropylene oxide and hexafluoroacetone as raw materials to react to prepare perfluoroepoxyisobutane; (2) carrying out catalytic isomerization on the perfluoroepoxyisobutane to obtain heptafluoroisobutyryl fluoride; (3) carrying out esterification reaction on heptafluoroisobutyryl fluoride and alcohol to obtain heptafluoroisobutyrate; and (4) reacting heptafluoroisobutyrate with ammonia, and performing dehydrating to obtain perfluoroisobutyronitrile. The synthesis method has the advantages of easily available raw materials, low raw material cost, few byproduct, mild reaction conditions, high reaction conversion rate and yield, short synthesis route, simple and safe process and easy industrial production.

The invention provides a catalyzing-curing film-forming agent special for texture paint and real stone paint and preparation and use methods thereof. The catalyzing-curing film-forming agent special for the texture paint and the real stone paint consists of the following components in parts by weight: 20-40 parts of 2,2,4-trimethyl-1,3-pentanediol isobutyrate, 5-25 parts of phenoxy-1-propanol, 5-25 parts of ethylene glycol butyl ether, 5-20 parts of glycol ether and 5-20 parts of ethyl alcohol. By adopting the catalyzing-curing film-forming agent special for the texture paint and the real stone paint, coating, particularly coating such as texture paint or real stone paint with a thick paint film can become films rapidly, the construction period is shortened, and the construction cost is reduced.

A fungicidal composition containing a fungicidally effective amount of a compound of Formula I, (3S,6S,7R,8R)-8-benzyl-3-(3-((isobutyryloxy)methoxy)-4- methoxypicolinamido)-6-methyl-4,9-dioxo-1,5-dioxonan-7-yl isobutyrate, and at least one fungicide selected from the group consisting of prothioconazole, epoxiconazole, cyproconazole, myclobutanil, prochloraz, metconazole, difenconazole, tebuconazole, tetraconazole, fenbuconazole, propiconazole, fluquinconazole, flusilazole, flutriafol, and fenpropimorph.

The invention belongs to the technical field of catalysts, and particularly provides a composite solid acid catalyst for preparing 2, 2, 4-trimethyl-1, 3-pentanediol diisobutyrate and a preparation method. According to the preparation method, firstly a metal organic framework is prepared, then metal ions are loaded, and then pyrolysis under ammonia gas flow is carried out to prepare nitrogen-containing mesoporous carbon with uniform pore channels, the organic metal framework can enable metal particles to be dispersed more uniformly, and the nitrogen element is successfully introduced under theaction of the ammonia gas flow, so that the metal surface area of the catalyst is large, and the nitrogen content is greatly increased, and finally, strong acid, super acid and heteropolyacid are loaded. The prepared catalyst is high in esterification reaction activity, good in stability and free of pollution, is a green catalyst, and has a good application prospect.

The invention provides a preparation method of a copper and ceramic powder composite electromagnetic shielding material. The method comprises the steps that S1 an L-cysteine solution is prepared; S2 L-cysteine-coated CuS particles are prepared; S3 tartaric acid modified barium titanate is prepared; S4 components comprises, by weight, 60 to 75 parts of acrylic resin, 3 to 8 parts of 2,2,4-trimethy-l,3 pentanediol monoisobutyrate, 0.2 to 0.5 part of nonylphenol epoxy vinyl ether, 10 to 20 parts of ethyl acetate, 10 to 20 parts of xylene, 40 to 50 parts of L-cysteine-coated CuS particles and 35 to 45 parts of tartrate-modified barium titanate are weighed; and S5 the components are mixed, ball-milled in a ball-milling tank to prepare a electromagnetic shielding coating. The electromagnetic shielding material prepared by the method has the advantages of high shielding efficiency and good electrical conductivity.

The invention discloses a method for synthesizing 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate) by adopting a micro-channel reactor and relates to the technical field of organic synthesis application. The method comprises the four steps: preparing a composite catalyst solution; setting reaction conditions of a micro-channel reactor; synthesizing 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate); and performing post treatment. According to the method, isobutyraldehyde is used as a raw material, and alkali metal hydroxide and tetrabutylammonium bromide are used as a composite catalyst; the 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate) is synthesized in the micro-channel reactor in a continuous flow manner. Compared with the prior art, the method disclosed by the invention has the characteristics of accurate and controllable reaction conditions, continuous production mode, high safety and short reaction time, the isobutyraldehyde conversion rate reaches over 95%,few reaction byproducts are produced, the selectivity reaches 80-95%, and the target product yield reaches 76-85%.