38results about How to "Short process route" patented technology

The invention relates to a preparation method of (R)-3-amino-1-oxa-8-azaspiro [4.5] decane-8-carboxylic acid tert-butyl ester, which comprises the following steps: carrying out Grignard reaction on N-BOC-4-piperidone and allyl magnesium halide to obtain an intermediate 1; carrying out substitution reaction on the intermediate 1 and 3-halogenated propylene to obtain an intermediate 2; performing olefin metathesis reaction on the intermediate 2 under the action of a Grubbs catalyst to obtain an intermediate 3; carrying out nitration reaction on the intermediate 3 and nitric acid to obtain an intermediate 4; carrying out hydrogenation reduction reaction on the intermediate 4 to obtain a racemic intermediate 5; and carrying out chiral resolution on the intermediate 5 by using a resolving agent to obtain a target product. The preparation method provided by the invention is short in process route and simple to operate, does not generate a large amount of waste water and waste gas, and can achieve higher total product yield and chemical and chiral purity.

The invention discloses a preparation method of octafluorocyclopentene, which comprises the following two steps of: firstly, reacting 4-cyclopentene-1, 3-diketone with a selective fluorine reagent in acetonitrile under the condition of reflux to generate a crude product second mixture, purifying the second mixture, and putting the purified second mixture into a second-step reaction to obtain the octafluorocyclopentene. Reacting with diethylamino sulfur trifluoride in dichloromethane to generate a third mixture; the method has the advantages of environment-friendly and simple reaction process, no generation of three wastes, low cost, easy obtaining, simple reaction process, mild reaction, no generation of waste gas pollution even if nitrogen protection is needed, easy operation, and suitableness for industrial production.

The present invention provides a method for preparing an oxygen cephalosporin intermediate OZ, the preparation method comprising using a compound shown in formula I as a raw material, triphenylphosphine as a desulfurizing agent, toluene and dichloroethane as solvents for reflux reaction, and preparing an oxygen cephalosporin intermediate OZ shown in formula II. The present invention tests the effects of different organic phosphines on the reaction. According to liquid phase reaction monitoring data, triphenylphosphine is the best. By using a specific precipitation solvent, the crystallization effect is good, and the purity of the product is improved. At the same time, the present invention tests the effects of different organic solvents on the reaction. Among them, a mixed solvent of toluene and dichloroethane is the best for the reaction, and the reaction conversion rate can reach more than 80%. The present invention has a short process route, mild reaction control conditions, simple operation, high yield, low cost, and is suitable for industrial production.

The invention relates to the technical field of laser welding, in particular to an intelligent integrated laser welding machine which comprises a welding machine body, a welding platform located on the welding machine body and a strip table arranged on the peripheral side of the welding platform, and the strip table is flush with the surface of the welding platform. The welding device comprises a welding platform, a strip table arranged on the welding platform, two sets of fixed point parts arranged on the strip table in a mirroring mode and located on the two sides of the welding platform correspondingly, two sets of pressure stabilizing assemblies arranged on the two sets of fixed point parts correspondingly, a suction connecting mechanism arranged on one set of pressure stabilizing assembly, and a suction connecting mechanism arranged on the other set of pressure stabilizing assembly. According to the grinding device, workpiece placing, fixing and follow-up grinding treatment are integrated, the effect diversification is improved, the operation and machining process is more convenient, the actual use experience is effectively improved, automatic control is adopted in multiple positions, and the machining efficiency is improved. The intelligence and the accuracy of each work in the machining process are improved, and the machining effect is integrally optimized.

A chenille carpet and a preparation method therefor. The preparation method comprises the following steps: S 1, using a chenille yarn for tufting a base fabric layer (2) to form a carpet layer (1) on one side of the base fabric layer (2), so as to prepare a carpet blank; S2, placing the carpet blank in step S 1 into a ball rolling machine for heating, rolling, turning, steam softening treatment and natural cooling; and S3, subjecting the carpet prepared in step S2 to bottom covering processing. The preparation method has the advantages of low water consumption, low energy consumption, being time saving and being environmentally friendly, and the prepared chenille carpet has good fluffiness and fullness.

The invention belongs to the technical field of preparation of diaryl iodonium salts, and particularly relates to a preparation method of a cationic photoinitiator 4-isobutylphenyl-4 '-methyl phenyl iodonium hexafluorophosphate, which comprises the following steps: step 1, in the presence of p-toluenesulfonic acid and persulfate, reacting p-iodobenzene with isobutylbenzene; and 2, adding hexafluorophosphate into the reaction solution in the step 1, and carrying out an ion exchange reaction to obtain the 4-isobutylphenyl-4 '-methyl phenyl iodonium hexafluorophosphate. The preparation method has the advantages of mild conditions and simple operation, greatly shortens the process route, avoids the use of acetone and other control reagents, and is suitable for industrial large-scale production. # imgabs0 #

The application discloses a cleaning method for wafer regeneration and HK film removal, which comprises three sequential steps: step 1, using a mixed solution of hydrofluoric acid and hydrogen peroxide to remove dense HK film, and through the synergistic effect of hydrogen peroxide oxidation and hydrofluoric acid dissolution, the HK film is completely peeled off from the silicon substrate; step 2, using aqua regia to remove other metal films, and using the stable complex formed by chloride ions and metal ions to enhance the metal removal effect; step 3, using SC2 cleaning solution for metal control cleaning, and removing trace metal ions; after each chemical treatment, the cleaning process of ultrapure water flushing and spin-drying is adopted. The method also comprises a neutralization treatment process of waste liquid and sodium hydroxide solution. Through the above three-step sequential process, the application can realize the beneficial effects of significantly improving the film removal efficiency, greatly improving the yield, effectively controlling the damage of the silicon substrate and enhancing the environmental friendliness of the process.

The invention belongs to the field of chemical production, and discloses a method for preparing high-oil-absorption and high-reinforcement white carbon black by using fluorine-containing silicon slag, which comprises the following steps: adding liquid-containing fluorine-containing silicon slag into a hot aluminum hydroxide solution to react until the liquid-containing fluorine-containing silicon slag is clear, and adding water to dilute to obtain a solution A; heating the solution A, adding dilute sulphuric acid in stages to neutralize to a target pH value, stirring, filtering, and carrying out countercurrent washing on the silica gel with pure water until the conductivity of washing water reaches the standard; adding an organic azeotropic solvent into the desalted silica gel, heating and preserving heat, and evaporating out part of the solvent to obtain a white carbon black primary product; and calcining the primary product at 500-800 DEG C, and crushing to obtain the target white carbon black. According to the invention, high-value utilization of the fluorine-containing silicon slag is realized, and the problems of poor reinforcing effect, low oil absorption value and insufficient activity of a traditional process product are solved.

The invention relates to the technical field of chemical engineering, in particular to a method for preparing antibacterial functional core-shell silicon dioxide from fluorine-containing silicon slag, which comprises the following steps: S1, silicon slag pretreatment: mixing silicon slag with water to prepare slurry, sanding the slurry, and controlling the particle size D50 of SiO2 in the sanded silicon slag to be less than 200nm; s2, alkali activation and silicon release: mixing the sanded slurry with an alkali solution, carrying out a hydrothermal reaction, and controlling the silicon dissolution rate to be within a preset range; s3, constructing a gradient pH core shell: firstly, adjusting the pH of the system to an alkaline interval, and carrying out reaction to form a compact inner shell; adjusting the pH value of the system to an acidic interval, and adding a solution containing zinc and fluorine for reaction to form a composite shell; s4, post-treatment: washing and calcining a product obtained in the step S3 to obtain the core-shell silicon dioxide with the antibacterial function. The silicon slag is purified by a one-step method through a four-step integrated process of pretreatment, activation, gradient coating and post-treatment, and the fluorine-containing waste slag is directionally converted into a high-added-value functional material.

The invention discloses a synthesis method of trans-4-(trans-4-methylcyclohexyl) cyclohexyl methanol, which comprises the following steps: step 1, taking 4, 4 '-biphenyldicarboxylic acid as a raw material, reacting with alkali to form salt, and performing catalytic hydrotreatment and acidification to obtain trans-4, 4'-biphenyldicarboxylic acid; step 2, the trans-4, 4 '-bicyclohexyl dicarboxylic acid is reduced into trans-4-(trans-4-hydroxymethyl cyclohexyl) cyclohexyl methanol under the action of a reducing agent, and the trans-4, 4'-bicyclohexyl dicarboxylic acid is reduced into the trans-4-(trans-4-hydroxymethyl cyclohexyl) cyclohexyl methanol under the action of a reducing agent; step 3, carrying out mono-esterification on the trans-4-(trans-4-hydroxymethyl cyclohexyl) cyclohexyl methanol, so as to form trans-4-(trans-4-hydroxymethyl cyclohexyl) cyclohexyl methanesulfonate; and step 4, reducing the trans-4-(trans-4-hydroxymethyl cyclohexyl) cyclohexyl methanesulfonate through lithium aluminum hydride, so as to obtain the trans-4-(trans-4-methyl cyclohexyl) cyclohexyl methanol. The designed route is unique, the raw materials are cheap and easy to obtain, the process conditions are reasonable, the product quality and cost are controllable, the total yield can reach 75% or above, aftertreatment is simple, isomerization is not needed, and the trans-98% or above product can be obtained.

The invention discloses a method for degrading kitchen waste protein through mechanochemical enzyme coupling, which comprises the following steps: mixing a kitchen waste stock solution with a solid-phase reagent, putting the mixture into a polytetrafluoroethylene ball mill, adding stainless steel beads, setting the rotating speed of the ball mill to be 100-500rpm, carrying out a grinding reaction for 6-12 cycles, and filtering to remove residues after the ball-milling reaction is finished, the kitchen waste protein degradation liquid is obtained. The method has the advantages of short process route, less reagent dosage, simplicity in operation, low cost, less pollution, high protein degradation rate, large amount of obtained amino acid, good degradation efficiency and the like, can be used as a fertilizer to better promote plant growth, and is a technology with relatively good popularization and application prospects.

The application discloses a green preparation method of 4,4'-difluorobenzophenone. The method uses 4,4'-difluorobenzene as raw material, potassium bromide as catalyst, acetic acid as solvent, and oxygen as oxidant, and 4,4'-difluorobenzophenone is generated in high selectivity through one-step oxidation under mild conditions. The application surprisingly finds that in the presence of potassium bromide, a new non-metallic catalytic oxidation system of potassium bromide / acetic acid / oxygen is used to realize high-efficiency and high-selectivity conversion of the C-H bond at the benzyl position. Compared with the traditional method, the application does not need to use a transition metal catalyst, does not need to use carbon tetrachloride and other materials damaging the ozone layer, and does not need to involve a dangerous intermediate such as a diazonium salt, the process route is short, the atomic economy is high, the product yield is high, the product purity is high, the catalyst is cheap and easy to obtain, and the application has excellent industrial application prospect and green chemistry characteristics.

The present invention provides a method for preparing brinolone, comprising the following steps: mixing a compound SM, a metal, a proton donor, a first organic solvent and liquid ammonia, performing a metal dissolving reduction reaction, and preparing an intermediate 1; mixing the intermediate 1, an oxidant and a second organic solvent, performing an oxidation reaction, and preparing an intermediate 2; mixing the intermediate 2, a reductase and a third organic solvent, performing a reduction reaction, and preparing brinolone. The raw materials required for the preparation method are cheap and readily available, and the obtained product brinolone has the characteristics of high yield, high quality and high selectivity.

The invention relates to a preparation method of a compound IV, which comprises the following reaction: # imgabs0 # comprises the following steps: step (1): reacting a compound I in benzylamine to obtain a compound II; (2) carrying out reduction reaction on the compound II in the presence of a reducing agent, and reacting with a hydrochloric acid reagent to obtain a compound III; and (3) carrying out reaction on the compound III in the presence of a metal catalyst and a hydrogen source to obtain a compound IV. According to the process route disclosed by the invention, dihydrochloride is selected in the synthesis process, so that the amino activity can be effectively inhibited, intermolecular polymerization reaction caused by amino is avoided, the yield of a reaction system is improved, the property of an intermediate is stable, the reproducibility is good, the preparation method is simple and convenient to operate, the yield is high, the product quality is good, and industrial production is easy to realize.

The invention discloses a production method for preparing calcium formate by using methyl formate and calcium carbonate as raw materials, and belongs to the technical field of calcium formate production. The production method comprises the following steps: S1, injecting methyl formate, calcium carbonate and water into a reaction kettle, and reacting to obtain a reaction product; s2, carrying out solid-liquid-gas separation on the reaction product to obtain calcium formate solid I, a solution and gas; s3, carrying out flash evaporation and evaporative crystallization on the solution to obtain a calcium formate solid II; and drying the calcium formate solid I and the calcium formate solid II to obtain a calcium formate product I and a calcium formate product II. According to the method, methyl formate and calcium carbonate directly react to prepare calcium formate, the production method is simple in process and low in cost, large-scale production is easy to achieve, and the method has high market competitiveness.

The present application relates to the technical field of high polymer material, and more particularly to a preparation method of nylon 11, comprising the following steps: methyl esterification: dodecanedioic acid is dissolved in methanol, and dodecanedioic acid dimethyl ester is synthesized by dehydration under the action of a first catalyst; ester exchange: dodecanedioic acid dimethyl ester, dodecanedioic acid and methanol are dissolved in an organic solvent, a second catalyst is added, and dodecanedioic acid monomethyl ester is prepared by refluxing reaction in the organic solvent; ammonia addition: 11-amino-undecanoic acid is prepared by taking dodecanedioic acid monomethyl ester as a raw material and through amide reaction and Hoffmann rearrangement; and polymerization: PA11 is obtained by high-temperature polymerization of 11-amino-undecanoic acid under nitrogen protection. The preparation method has the characteristics of short process route and stable intermediates, and can be suitable for batch production and continuous production.

The invention relates to the technical field of low-carbon olefin preparation, and discloses a method and a system for preparing low-carbon olefin by adopting petroleum raw materials and application of the method and the system. The method provided by the invention can be used for producing the low-carbon olefin by directly taking the crude oil as a raw material, and is short in production process route and high in efficiency. And by optimizing the technological process, coking of the cracking furnace can be effectively slowed down, and the operation time is effectively prolonged. In addition, the method provided by the invention also can obtain a relatively high low-carbon olefin yield, and the discharge amount of harmful wastes is small, so that the method meets the requirements of green and sustainable development.

The invention relates to the technical field of pharmaceutical chemicals, in particular to a method for synthesizing and refining levosimendan. According to the method for synthesizing and refining levosimendan, N-[4-(2-bromopropionyl) phenyl] acetamide is used as a raw material and reacts with diethyl malonate in a phase transfer catalysis system to obtain 2-(1-(4-acetamidophenyl)-1-oxopropane-2-yl) diethyl malonate, then hydrolysis decarboxylation reaction is performed, and the levosimendan is obtained. The preparation method comprises the following steps: carrying out a condensation reaction on 4-(4-aminophenyl)-3-methyl-4-oxobutyrate and hydrazine hydrate to obtain 6-(4-aminophenyl)-4, 5-dihydro-5-methyl-3 (2H)-pyridazinone, and carrying out chiral resolution on the 6-(4-aminophenyl)-4, 5-dihydro-5-methyl-3 (2H)-pyridazinone by using L-tartaric acid to obtain (R)-6-(4-aminophenyl)-4, 5-dihydro-5-methyl-3 (2H)-pyridazinone. (R)-6-(4-aminophenyl)-4, 5-dihydro-5-methyl-3 (2H)-pyridazinone, and finally, the (R)-6-(4-aminophenyl)-4, 5-dihydro-5-methyl-3 (2H)-pyridazinone and malononitrile are further subjected to condensation, and levosimendan is obtained. Compared with a traditional method, the method has the advantages of few process steps, simplicity and convenience in operation, easiness in product separation and purification, easiness in reaction control, high yield, low cost and easiness in three-waste treatment.

The invention relates to the technical field of organic synthesis, in particular to a method for preparing cyclopentylformaldehyde from cyclopentene, which at least comprises the following steps: (1) depolymerizing dicyclopentadiene into cyclopentadiene; (2) selectively hydrogenating cyclopentadiene into cyclopentene through a fixed bed; (3) carrying out hydroformylation reaction on cyclopentene and synthesis gas to obtain crude cyclopentyl formaldehyde; and (4) the crude cyclopentyl formaldehyde is distilled and purified to prepare cyclopentyl formaldehyde, the operation is simple and safe, the cyclopentene conversion rate is high, the product yield is high, and the product purity is high.

The invention relates to a preparation method of a diphenhydramine hydrochloride impurity A. The invention discloses a synthesis process of 2-(diphenyloxy)-N-methylethylamine hydrochloride, which comprises the following steps: (1) under the catalytic action of a phase transfer catalyst, carrying out chlorination reaction on benzhydrol and hydrochloric acid to obtain a compound IV; (2) carrying out selective substitution reaction on the compound IV and 2-methylethanolamine to obtain a mixture of a compound II and a compound III, and carrying out column chromatography and separation to obtain an impurity II; and (3) carrying out salt forming reaction on the compound II and a hydrogen chloride solution to generate a compound I. The raw materials of the method are simple and easy to obtain, and the product yield and purity are high.

This invention provides a molybdenum concentrate circulating roasting apparatus and method, relating to the field of molybdenum concentrate roasting technology. The apparatus includes a controllable roasting reaction unit and an oxidative regeneration roasting unit. The controllable roasting reaction unit mixes molybdenum trioxide powder and molybdenum concentrate powder and roasts them to generate molybdenum dioxide and sulfur dioxide gas. The oxidative regeneration roasting unit oxidizes and roasts the molybdenum dioxide, generating molybdenum trioxide powder or molybdenum trioxide vapor at different temperature ranges. A portion of the molybdenum dioxide prepared by the controllable roasting reaction unit is transported to the oxidative regeneration roasting unit, and the molybdenum trioxide powder prepared by the oxidative regeneration roasting unit is returned to the controllable roasting reaction unit, forming a closed-loop circulation system for molybdenum-based materials.

This invention discloses a method for preparing 6-bromo-6,6-difluoro-1-hexanol, belonging to the field of organic synthesis. The method uses 4-penten-1-ol as a starting material, reacting it with dibromodifluoromethane via an addition reaction to prepare 4,6-dibromo-6,6-difluoro-1-hexanol; then, a dehalogenation reaction is carried out using a second metal reagent to obtain 6-bromo-6,6-difluoro-1-hexanol. In this method, the reactants and reagents are inexpensive and readily available, the reaction steps are short, and production control is convenient; the reaction conditions are mild, ensuring high safety; the process is simple, and the product has high purity.

The invention discloses a coating method of an electrode material, which comprises the following steps: (1) olefin-substituted imidazole and halogenated hydrocarbon are mixed for an addition reaction to form a quaternary ammonium salt type ionic liquid monomer, and the halogenated hydrocarbon is one or a mixture of several of 3-bis (bromomethyl) benzene, 1, 3-bis (bromoethyl) benzene, 1, 2-dichloroethane and benzyl bromide; (2) thermally initiating the quaternary ammonium salt type ionic liquid monomer, and carrying out polymerization reaction to form a diazolium type polymeric ionic liquid; and (3) mixing the diazolium type polymeric ionic liquid and the electrode material, and calcining to form a carbon coating layer outside the electrode material. The coating material is prepared firstly, and during coating, the electrode material is directly mixed with the coating material, so that element doping is reduced, the capacity and the cycling stability are improved, the types of the electrode materials are not limited, and the application range is wide.

The invention discloses a method for preparing N-(3-chloro-4-fluorophenyl)-4-fluoro-3, 5-dimethyl benzenesulfonamide by a one-pot method. The method comprises the following steps: adding a catalyst into a reaction kettle; comprising the following steps: reacting 2, 6-dimethyl fluorobenzene with chlorosulfonic acid to generate 4-fluoro-3, 5-dimethyl benzene sulfonyl chloride, then adding 3-chloro-4-fluoroaniline, and carrying out an amidation reaction to generate N-(3-chloro-4-fluorophenyl)-4-fluoro-3, 5-dimethyl benzene sulfonamide. And refining the crude product by using an n-hexane / ethyl acetate mixed solution to obtain a target compound. The N-(3-chloro-4-fluorophenyl)-4-fluoro-3, 5-dimethyl benzene sulfonamide prepared by the process has high purity, and the HPLC (High Performance Liquid Chromatography) purity is gt; the content is 99.0%. The method has the advantages of easily available raw materials, mild operation conditions and low production cost, and is suitable for large-scale industrial production.

A method for producing battery-grade lithium dihydrogen phosphate using lithium-containing brine includes the following steps: (1) adding sodium hydroxide solution to lithium-containing mother liquor, adding the mixed solution to sodium dihydrogen phosphate solution, maintaining the pH of the system at 9-11, reacting, separating the solid and liquid phases to obtain lithium phosphate precipitate and mother liquor; (2) adjusting the slurry, adding concentrated sulfuric acid to react, separating the solid and liquid phases to obtain a mixed solution of liquid-phase lithium dihydrogen phosphate and lithium sulfate; (3) vacuum cooling and crystallization separation to obtain lithium dihydrogen phosphate crystals. This invention achieves efficient recovery of lithium ions from low-concentration lithium-containing brine, eliminating the need for conventional processes such as electrodialysis and MVR for further concentration of lithium-containing mother liquor. It also avoids the use of phosphoric acid in the acidification process, saving raw material costs, reducing the amount of water added in the acidification process, and reducing energy consumption in the crystallization separation process. The resulting battery-grade lithium dihydrogen phosphate is of stable quality, uniformly distributed, and bright white in color, suitable for preparing lithium-ion battery cathode materials, and has a low cost.

The invention relates to a method for preparing an electronic-grade hydroxylamine aqueous solution by using an industrial-grade 50% hydroxylamine aqueous solution as a raw material through a microfiltration, ion exchange and nanofiltration combined technology. The method comprises the following steps: firstly, removing suspended particles and colloidal substances by microfiltration pretreatment; removing ion impurities through a specially modified ion exchange resin combined bed; and finally, deeply purifying by utilizing a nanofiltration technology to obtain a high-purity product. The method is short in process route, safe to operate and low in cost, the electronic-grade hydroxylamine aqueous solution can be stably produced, the metal ion content is lower than 10 ppt, the particle size of particles is controlled to be larger than 0.1 micrometer and smaller than 50 particles / ml, the resistivity reaches 18.2 M omega.cm, and the industrial requirements of semiconductor manufacturing, integrated circuits and display panels are met.

The invention discloses a phosphorus-containing waste curing process, and belongs to the technical field of hazardous waste curing treatment, and the phosphorus-containing waste curing process specifically comprises the following steps: (1) sequentially carrying out hydrolysis, filtration, impurity removal and catalytic oxidation treatment on phosphorus-containing waste to obtain hydrolysate; (2) concentrating the hydrolysate obtained in the step (1), and centrifuging to obtain a concentrated solution; (3) carrying out curing treatment on the centrifuged concentrated solution under the action of a curing agent and a curing auxiliary agent to obtain a calcium phosphate cured body for landfill; the process is simple and easy to implement, organic matter is removed while reactivity is eliminated, the landfill requirement is met, waste is treated with waste, and the capacity increasing ratio can be reduced.

The application relates to the field of electrochemistry, and discloses a method for directly synthesizing lithium iron phosphate from ferrous sulfate, which comprises the following method steps: S1, configuring ferrous sulfate into a 26-40 wt% solution; S2, adding a dispersing agent into the ferrous sulfate solution; S3, adding a carbon source into the above solution, and controlling the carbon content of the lithium iron phosphate to be 1-5 wt%; S4, adding a lithium source into the above solution, and controlling the iron-lithium molar ratio to be 0.98-1.05; S5, adding a phosphorus source into the above solution, and controlling the iron-phosphorus molar ratio to be 0.965-1.02; S6, uniformly mixing the above solution, and performing granulation through spray drying; and S7, performing curve sintering on the granulated product to obtain a carbon-coated lithium iron phosphate product. Through the solution mixing mode, ferrous sulfate, a dispersing agent, a carbon source, a lithium source and other materials are mixed in multiple stages, and finally, curve sintering is performed to obtain the carbon-coated lithium iron phosphate product, and the method has a short process route and low energy consumption.

This utility model discloses a flexible circuit board based on a photosensitive insulating material. The flexible circuit board based on the photosensitive insulating material includes a first conductive layer, a first photosensitive insulating layer, a second conductive layer, a second photosensitive insulating layer, and a third photosensitive insulating layer as a substrate. The first photosensitive insulating layer covers the first conductive layer, and a first through-hole is formed on the first photosensitive insulating layer by exposure and development. The second conductive layer is disposed on the side opposite to the first photosensitive insulating layer and has a first conductive portion extending to the first through-hole. The first conductive layer and the second conductive layer are connected through the first conductive portion. The second photosensitive insulating layer and the third photosensitive insulating layer respectively cover the first conductive layer and the second conductive layer, and the second photosensitive insulating layer is located on the side opposite to the first conductive layer.