50 results about "Phorone" patented technology

The invention relates to a polyamide-imide insulating varnish. The polyamide-imide insulating varnish is characterized in that the varnish comprises the following components in parts by weight: 100-120 parts of polyamide-imide solution and 2-5 parts of sepiolite material, wherein the polyamide-imide solution mainly comprises the following components in parts by weight: 20-35 parts of polyamide-imide resin and 20-60 parts of organic solvent; the organic solvent is one or a combination of N-methylpyrrolidone, chlorobenzene, bromobenzene, dichlorobenzene, dibromobenzene, 1-tetralone, fenchone, phorone and isophorone; and the sepiolite material mainly comprises sepiolite. The polyamide-imide insulated enamel wire provided by the invention forms a homogeneous stable system, the surface friction coefficient is below 0.30, and each index meets the International Electrotechnical Commission (IEC) standard requirement; and the polyamide-imide insulating varnish is suitable to be used as the enamel wire insulating varnish for coating the surface of the copper wire.

The invention relates to the technical field of paint processing, in particular to an epoxy resin modified polyurethane anticorrosive water-based paint and a preparation method thereof. The paint comprises polypropylene glycol, isophorone diisocyanate, dibutyltin dilaurate, 2,2-dimethylolpropionic acid, trihydroxypropane, epoxy resin, 1,4-butanediol, triethylamine, ethylenediamine, N-methylpyrrolidone, deionized water, a filler and an auxiliary. The method utilizes trimethylolpropane to assist cross-linking, and improves the chemical cross-linking density of the paint, thereby improving the structural stability and mechanical properties of the paint film; acetone is not added, it is not necessary to distill an emulsion to recover a solvent, the VOC content is reduced, the energy consumption is reduced, and a silane coupling agent is directly added to the epoxy resin modified polyurethane paint according to the paint formulation, which significantly improves the adhesion of the paint layer to a substrate.

The invention discloses a method for preparing 3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine (isophorone diamine, IPDA) by 3-cyano-3, 5, 5-trimethyl cyclohexanone (IPN, isophorone nitrile), which comprises the following steps: a) 3-cyano-3, 5, 5-trimethyl cyclohexanone and oxyammonia are arranged in an organic solvent for reaction under a temperature ranging from 40 DEG C to 80 DEG C, and 3-cyano-3, 5, 5-trimethyl cyclohexanone oxime is generated; b) 3-cyano-3, 5, 5-trimethyl cyclohexanone oxime, hydrogen and liquid ammonia are arranged in an organic solvent for reaction under a temperature ranging from 50 DEG C to 120 DEG C, a total pressure ranging from 5 MPa to 15 MPa and the effect of a hydrogenation catalyst, and 3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine is obtained. The method has the advantages that, the production of a by-product 3-aminomethyl-3, 5, 5-trimethyl cyclohexanol (IPAA) which is hard to be separated from IPDA is avoided; simultaneously, the amount of liquid ammonia is largely decreased.

The invention discloses a preparation method of 2,3,5-trimethyl hydroquinone diester. According to the preparation method, oxo-isophorone and acetic anhydride carry out rearrangement and acylation under the catalytic action of a modified cyclodextrin supported solid acid to prepare 2,3,5-trimethyl hydroquinone diester. The solid acid is loaded on poly(allyl amine) modified methyl-beta-cyclodextrin; the reaction conditions are mild, the oxo-isophorone conversion rate and the product selectivity are high, the catalyst can be repeatedly used, and the shortages of a conventional preparation technology such as bad selectivity, severe equipment corrosion, complicated operation, and the like, are overcome.

The invention relates to carbonyl-containing modified heterocyclic amine, a preparation method and application in multifunctional acrylic ester thereof. The carbonyl-containing modified heterocyclic amine is heterocyclic amine containing at least two ring structures, and is formed through carrying out ammonolysis reaction on carbonic ester and cycloaliphatic diamine, wherein the cycloaliphatic diamine is one or more selected from piperazine, isophorone diamine, 1, 4-hexamethylenediamine, 1-methyl-2, 4-diaminocyclohexane, N, N'-dimethyl-1 and 2-diaminocyclohexane. According to the application, when the carbonyl-containing modified heterocyclic amine is applied to multifunctional acrylic ester, the curing velocity of multifunctional acrylic ester is remarkably increased, the cure shrinkage rate of multifunctional acrylic ester is decreased, and the hardness and high temperature resistance of multifunctional acrylic ester are remarkably improved; and besides, the generated carbonyl-containing modified heterocyclic amine multifunctional acrylic ester has the characteristics of being light in smell, and small in amine mobility and less prone to yellowing.

The invention provides a waterborne urethane acrylate core-shell crosslinking type emulsion for a humidity-regulating coating. Polypropylene glycol, isophorone diisocyanate and the like are dissolved in acetone, heated to 40 to 100 DEG C, and reacted for 60 to 240 minutes; the temperature is reduced to 30 to 70 DEG C, triethylamine is added to be subjected to a neutralization reaction; hydroxyethyl methacrylate is added to react for 10 to 100 minutes; deionized water is added for high-speed dispersion to obtain aqueous polyurethane; a composite emulsifier is added, and heated to 40 to 100 DEG C, and methyl methacrylate, butyl acrylate and an initiator are dropwise added to react for 1 to 6 hours during the condition that the temperature is kept; and the temperature is reduced to 30 to 70 DEG C, and the pH is regulated to 7 to 10 with aqueous ammonia to obtain the waterborne urethane acrylate core-shell crosslinking type emulsion. The waterborne urethane acrylate core-shell crosslinking type emulsion has excellent water absorption and water resistance, good compatibility and stability, and no phase separation, is homogeneous and transparent, and is used for preparing the humidity-regulating coating and is favorable for improving the water absorption and wash resistance of the coating.

The invention discloses a method for rapidly testing multiple component contents in a radix curcumae-jasmine steam distillation and extracting process based on an ultraviolet spectrum. Based on the ultraviolet spectrum and a multielement quantified correcting model, the rapidly, exactly and low-cost test the contents of isophorone, 4- methylene- isophorone, curcuma zedoary bicyclo- ketene, curcumazedoary enol, curcuma zedoary diketone, curcuma zedoary ketone, curcuma zedoary furanodienone, curcuma zedoary alcohol and germacrone in the radix curcumae-jasmine steam distillation and extracting process. The method is simple in operation, rapid in analysis, low in analysis cost, and free from damaging samples and consuming chemical reagents, and others. The method can be applied to the production process monitoring and quality control of Chinese material medical preparation (such as consciousness restoring injection) during the radix curcumae-jasmine steam distillation and extracting process.

The invention belongs to the technical field of preparation of self-repairing materials, and provides a preparation method of a self-repairing waterborne polyurethane film, wherein the preparation method comprises the following steps: 1) dissolving polytetrahydrofuran glycol in acetone, adding isophorone diisocyanate and a catalyst, and reacting to generate a polyurethane prepolymer; (2) sequentially adding N-methyl pyrrolidone, 2,2-dimethylolpropionic acid, 2-hydroxyethyl disulfide and triethylamine into the polyurethane prepolymer, and carrying out stirring reaction, so as to obtain a self-repairing waterborne polyurethane emulsion; and 3) pouring the self-repairing waterborne polyurethane emulsion on a polyfluortetraethylene plate, and drying to obtain the self-repairing waterborne polyurethane film. The reversible disulfide bond is introduced, based on the instability of the disulfide bond, a covalent bond of the disulfide bond is easy to break and recombine with other sulfur atoms, and self-repairing can be realized by utilizing an oxidation-reduction reaction between the disulfide bond and sulfydryl, so that the prepared waterborne polyurethane film has good self-repairing performance.

The invention discloses a nitrogen halamine type antibacterial polyurethane material as well as a preparation method and application thereof, and relates to the field of polyurethane compositions. The method comprises the following steps: firstly, synthesizing a nitrogen halamine precursor by taking guanidine salt and 2-acetylbutyrolactone as main raw materials; further, then using the polyol and isophorone diisocyanate, as main raw materials, to prepare a prepolymer; then introducing a prepared nitrogen halamine precursor which serves as a chain extender at the same time, preparing the nitrogen halamine type polyurethane emulsion, enabling the emulsion to form a film, and carrying out chlorination on the prepared film through a sodium hypochlorite solution or a domestic bleaching agent, so as to obtain the polyurethane material with antibacterial performance. The synthetic process is simple, the antibacterial performance can be enhanced through repeated chlorination in practical application, and practical production and use are facilitated; wherein the adhesive film is high in strength and excellent in adhesive force; and the chlorinated coating film has good and lasting antibacterial performance, and has great application prospects in the fields of antibacterial textile fabrics, toy coatings and medical appliances.

The invention discloses a method for improving the antibacterial property of a polyurethane coating by utilizing a hydrophilic chain extender. The preparation method comprises the following steps: with polytetrahydrofuran glycol as a soft segment, isophorone diisocyanate as a hard segment, dibutyltin dilaurate as a catalyst and N-methyldiethanolamine as a hydrophilic chain extender, adjusting thecontent of the hydrophilic chain extender, carrying out neutralizing with glacial acetic acid, and performing emulsifying with an aqueous solution containing an antibacterial agent so as to obtain polyurethane antibacterial coatings with different hydrophilicities. The method of the invention overcomes defects in the prior art and can control the antibacterial property of the cationic waterborne polyurethane coating without increasing the content of an antibacterial agent; and the method can improve the antibacterial capacity of the coating and reduce the use amount of the antibacterial agent.

The invention discloses a preparation method of a reactive branched polyurethane polymeric dispersant, which comprises the steps of (1) putting phorone diisocyanate into a three-neck flask, heating to the temperature of 65-75 DEG C in an oil bath pan, and adding polyethylene glycol to react to synthesize a polyurethane prepolymer; (2) raising the temperature to 75-85 DEG C, and adding 2,2-dimethylolpropionic acid to carry out chain extension reaction; (3) after the chain extension reaction is completed, adding a branched structural monomer, keeping the temperature at 75-85 DEG C, and carrying out a branching reaction; (4) after the branching reaction is finished, reducing the temperature to 50-60 DEG C, grafting an anchoring group at the tail end of the polyurethane, and keeping the end capping rate at 50-75%; and (5) controlling the temperature at 50 DEG C, further grafting a reactive group, and completely blocking the isocyanate group. According to the invention, the polyurethane dispersant is designed into a branched structure on the basis of the polyurethane dispersant, and then a reactive group is introduced to the tail end, so that the self-crosslinking effect can be realized, and the color fixation effect can be achieved without adding an adhesive.

The invention discloses an aqueous emulsion pesticide, which consists of the following components in percentage by weight: 1.5 to 25 percent of chemical material, 10 to 35 percent of dimethylbenzene, 1.6 to 4.5 percent of isophorone, 1.1 to 6.3 percent of cyclohexanone, 2.6 to 8 percent of tri-styrylphenol polyoxyethyl ether, 0.3 to 2 percent of butylbenisothiazolene, 3.2 to 15.3 percent of pesticide emulsifier No.404, 2 to 10 percent of ethanediol and the balance of water, wherein the chemical material is one or two of abamectin, Emamectin benzoate, flusilazole, deltamethrin, pyrimethanil, imazalil, triazophos, chlorpyrifos, kresoxim-methyl, pyridaben, propiconazole and phoxim. The invention has the advantages of wide application range, stable formulation, obvious synergism and simple production process.

The invention provides a preparation method for a water-based aliphatic polyurethane adhesive for electronic process protection. The water-based aliphatic polyurethane adhesive is prepared from, by weight, 13%-17% of polyols, 12%-14% of isophorone diisocyanate, 0.3%-0.6% of neopentyl glycol, 0.4%-0.7% of trimethylolpropane, 1%-2% of hydrophilic chain-extending agent, 5%-10% of acetone, 0.01%-0.02% of catalyst, 1%-2% of triethylamine, 1%-2% of chain-reextending agent, 0.1%-1.5% of leveling agent, 0.1%-0.5% of defoamer, 0.1%-0.5% of wetting agent and 0.5%-1% of thickening agent and also contains 0.1%-1% of outer cross-linking agent. The prepared water-based aliphatic polyurethane adhesive is friendly to the environment, is reasonable in solid content, safe, environmentally friendly, non-inflammable, non-explosive and the like, and in manufacturing process, the solvent can be used as an ammonia ester level solvent for repeated utilization.

The present invention relates to a process for producing (4S)-4-hydroxy-2,6,6-trimethyl-2-cyclohexene-1-one (phorenol) from 2,6,6-trimethyl-2-cyclohexene-1,4-dione (ketoisophorone) comprising contacting ketoisophorone with a microorganism which is capable of producing actinol from levodione or with a cell-free extract thereof, with a recombinant microorganism which is capable of producing actinol from levodione or with a cell-free extract thereof, or with levodione reductase, and isolating the resulting phorenol from the reaction mixture.

The invention relates to a hydrophobic and light-operated antibacterial waterborne polyurethane composite emulsion and a preparation method and application thereof. The method comprises the following steps: adding Zn(NO3)2.6H2O and 2-methylimidazole into a g-C3N4 solution, stirring at room temperature to obtain an emulsion, centrifugally separating, washing, and dispersing with water to obtain a dispersion liquid; carrying out heat preservation on polycaprolactone and 2, 2-dimethylolbutanoic acid in a closed state to obtain a reaction solution A, heating to 70-80 DEG C, adding isophorone diisocyanate and dibutyltin dilaurate, carrying out a reaction to obtain a reaction solution B, adding hydroxyl-terminated fluorine-containing polysiloxane, carrying out a reaction for 3-4 hours to obtain a reaction solution C, adding acetone, cooling to 40-60 DEG C, adding 1, 4-butanediol, carrying out heat preservation for 0.5-1 hour to obtain a reaction solution D, finally, adding triethylamine, preserving heat for 0.5-1 hour, and emulsifying with deionized water to obtain an FSiPU composite emulsion; and 2, uniformly mixing the dispersion liquid with the composite emulsion to obtain the hydrophobic and light-operated antibacterial waterborne polyurethane composite emulsion.

The invention belongs to the technical field of composite emulsions, and particularly relates to an organic fluorine modified waterborne polyurethane emulsion and a preparation method thereof. The organic fluorine modified waterborne polyurethane emulsion is prepared from polytetrahydrofuran ether glycol, 1, 4-butanediol, isophorone diisocyanate, dimethylolpropionic acid, perfluoropolyether oil, butyl acrylate, dibutyltin dilaurate and N, N-dimethylformamide; the cleaning agent is prepared from N, N-dimethylol acetamide, acetone, triethylamine and deionized water, wherein the weight part ratioof the above raw materials is (5-15): (2-4): (5-10): (1-3): (1-3): (0.41-1): (0.1-0.5): (1-4): (2-5): (10-15): (15-25). The emulsion is better in tensile strength.

The invention relates to the field of catalysis, and discloses a composite oxide and a preparation method and application thereof. The composite oxide comprises M, Al and La, M is Ca and / or Mg, and the molar ratio of M to Al to La is (0.3-4.5): 1: (0-0.2). The composite oxide is low in cost and easy to regenerate, has relatively good pore volume, pore diameter and specific surface area, has a proper amount of acidic centers and alkaline centers, and can be used for preparing a porous material through the synergistic effect of the acidic centers and the alkaline centers. The method can promote the selective reaction for preparing isophorone through acetone condensation at low temperature, inhibits further condensation of acetone, reduces side reactions, and is easy for industrial application.

The invention relates to a fluorine-containing fire extinguishing agent and a preparation method and application thereof. The fluorine-containing fire extinguishing agent comprises the following components in percentage by weight: 0.01%-0.5% of isocyanate and the balance of perfluorohexanone, and the isocyanate is selected from one or more of hexamethylene diisocyanate (HDI), dicyclohexylmethane-4,4'-diisocyanate (HMDI), isophorone diisocyanate (IPDI) and toluene diisocynate (TDI). The fluorine-containing fire extinguishing agent contains isocyanate and perfluoro(2-methyl-3-pentanone) with specific contents, and an isocyanate group in the isocyanate has good reaction activity and can remove moisture in the fluorine-containing fire extinguishing agent through chemical reaction, so that the perfluoro(2-methyl-3-pentanone) in the fluorine-containing fire extinguishing agent is prevented from generating HF acidic substances in the storage period to corrode a storage container. The compatibility of the added isocyanate and the perfluorohexanone is good, so that the use effect of the fluorine-containing fire extinguishing agent cannot be influenced under the condition of effectively removing water and preventing corrosion.

The invention provides a self-cleaning water-based nano coating and a preparation method thereof. The self-cleaning water-based nano coating is prepared from the following raw materials: water-based polyurethane acrylic emulsion, polyamide-imide resin, modified epoxy resin, diatomite, a catalyst, a coupling agent, a curing agent, a defoaming agent, a rheological agent, a dispersing agent and an anti-corrosion additive. The self-cleaning water-based nano coating with high overall stability and remarkable corrosion resistance can be obtained by optimizing formula components, the coupling agent is prepared by compounding tridecafluorooctyltriethoxysilane, toluene diisocynate, isophorone diisocyanate and isopropyl alcohol, the water resistance and pollution resistance of a coating can be promoted, and the self-cleaning water-based nano coating has the advantages that the self-cleaning water-based nano coating is high in overall stability and remarkable in corrosion resistance; coco fatty acid diethanol amide and 3-propanediol in the anti-corrosion additive are combined for use, the dispersing agent is prepared from zinc oxide, silicon dioxide, bis (hydroxymethyl) propionic acid and calcium carbonate, and then the dispersing agent, the coupling agent and the anti-corrosion additive have a synergistic effect, so that the anti-corrosion and water-resistant effects of the coating are further improved.

The invention relates to the technical field of tobacco flavors and spices, and in particular, relates to honey and grapefruit composite fragrance type electronic cigarette oil and a preparation method thereof. The electronic cigarette oil comprises, in pats by mass, 0.5 to 3 parts of phenylethyl phenylacetate, 0.1 to 0.5 part of phenylacetic acid, 0.2 to 1.0 part of p-cresyl acetate, 0.5 to 3 parts of methyl phenylacetate, 0.1 to 0.5 part of menthyl acetate, 1.5 to 5.0 parts of isobutyl phenylacetate, 0.2 to 0.8 part of ethyl phenylacetate, 0.5 to 3.5 parts of damascenone, 0.2 to 0.8 part ofnatural citral, 0.5 to 3 parts of beewax absolute oil, 0.3 to 1 part of phenylamyl acetate, 0.2 to 1.0 part of vanillin, 10 to 20 parts of benzyl alcohol, 1 to 5 parts of ethyl cinnamate, 0.5 to 3 parts of isophorone oxide, 2 to 8 parts of nootkatone, 0.2 to 1.0 part of Buchu oil, 0.2 to 0.8 part of bitter apricot seed oil, 1.5 to 5.5 parts of ethyl maltol and 750 to 850 parts of propylene glycol.The electronic cigarette oil which has honey grapefruit fragrance, harmonious and natural fragrance, soft and fine smoke and comfortable taste is obtained through matching of multiple components, andthe preparation method is simple, low in cost and capable of being used for large-scale industrial production.

The invention discloses a rapid analysis method of Xingnaojing injection based on an ultraviolet spectrum. The method is characterized in that acetonitrile is used as a mobile phase A, 0.1 wt% phosphoric acid-aqueous solution is used as a mobile phase B for linear gradient elution, and an elution procedure is 0 min, 30% A; 10min, 55%A; 24min, 55%A; 24.1min, 70%A; 35min, 70%A; 40min, 100%A; a flowrate is 0.6 mL / min, a column temperature is 40 DEG C, a sample size is 50 [mu]L, and a PDA detection wavelength range is 200-400 nm; and the detection wavelength of each component is as follows: isophorone with the wavelength of 238 nm; 4-methylene-isophorone with the wavelength of 275nm; curcuma zedoary bicyclo-enone with the wavelength of 256 nm; curcumenol with the wavelength of 261 nm; curcumazedoary diketone with the wavelength of 220 nm; curcumenone with the wavelength of 274 nm; curcuma zedoary furandienone with the wavelength of 274 nm; curcumenol with the wavelength of 210 nm; and germacrone with the wavelength of 210 nm. The analysis method established by the invention has advantages of rapidness, simplicity, convenience and low cost, and can be used for monitoring an extractionprocess and judging an extraction end point so that production efficiency is improved, and product quality defects and quality differences are reduced.

The invention relates to equipment and a method for preparing isophorone through acetone gas phase condensation. The equipment comprises an acetone recovery tower, a first partition wall tower, an isopropyl acetone tower and a second partition wall tower; in the first partition wall tower, a partition plate is positioned on a central axis in the tower, an azeotropic rectification zone is positioned on the left side of the partition plate, and a water purification zone is positioned on the right side of the partition plate; and in the second partition wall tower, a partition plate is positionedon a central axis in the tower, a primary distillation zone is positioned on the left side of the partition plate, a lateral line zone is positioned on the right side of the partition plate, a publicrectifying section is positioned at the upper part of the partition plate, and a public stripping section is positioned at the lower part of the partition plate. The equipment and the method providedby the invention have the benefits that with the adoption of the partition wall towers and other novel separation technologies, all products in the acetone condensation reaction can be effectively separated and recovered, namely isopolone as a main product, isopropyl acetone as a by-product, sym-trimethylbenzene, a tetramer and the like, and the quality purity of each of the products is higher than or equal to 99.60%; and in addition, the technical process of preparing the isophorone by the acetone condensation is significantly simplified, so that the equipment investment and the energy consumption are reduced.

The invention discloses a super-tough room temperature intrinsic self-repairing elastomer material with high light transmittance and a preparation method thereof. The structural formula of the material is 10≤n≤60. The material is formed by polycondensation of isophorone diamine, toluene diisocyanate-terminated polypropylene glycol and small molecule monohydric alcohol. First, the toluene diisocyanate-terminated polypropylene glycol is dissolved in N,N'-dimethylformamide In the process, add isophorone diamine and small molecule monohydric alcohol respectively, mix and polycondense to obtain a polymer solution, and finally remove the solvent. The intrinsic self-healing elastomer material of the present invention can complete the repair process at room temperature, has high transparency, can be stretched to about 20 times its original length, and has excellent toughness.

The invention discloses mung bean type edible essence containing isophorone oxide. The mung bean type edible essence comprises 0.1-0.3% of 2-acetyl thiazole, 1-2% of methyl cyclopentenolone, 0.4-0.6%of isophorone oxide, 5-6% of ethyl maltol, 1-3% of mercaptan, 0.05-0.15% of butyl butyryl lactate, 0.05-0.15% of methyl anthranilate, 4-6% of vanillin, 0.05-0.15% of dihydrocoumarin, 0.4-0.6% of vanillin propylene glycol acetal, 0.05-0.15% of eugenol and 80.9-87.9% of propylene glycol. According to the invention, the formula and the proportion are optimized, and the isophorone oxide and other components are added, so that the bean fragrance of the essence is increased, and the mung bean paste feeling of the fragrance is improved; after being added into the food, the flavor of the food is fuller and richer.