31 results about "DIETHYL SEBACATE" patented technology

The invention relates to a weather monitoring device, in particular to a new weather balloon, which comprises the following components by weight percent: 100 of centrifugal concentrated natural latex, 0.3 of casein, 0.3 of potassium hydroxide, 0.15 of peregal 0, 2 of sulphur, 1.5 of N-ethyl-N-phenyl dithiocarbamate zinc, 1 of N-phenyl-2-naphthylamine, 1.5 of zinc oxide, 1.5 of dibutyl sebacate, 1.5 of IR-550 polyisoprene latex, 0.05 of dispersing agent NF, 0.05 of borax, 0.3 of sodium butylnaphthalenesulfonate, 0.5 of sodium hexametaphosphate, 8 of dioctyl sebacate and 10 of chloroprene polymer. The new weather balloon provided by the invention has the advantages of high sounding altitude, long sounding time and wide application prospect.

The invention discloses a preparation method of diethyl sebacate in the presence of a catalyst namely methyl sulfonic acid, and belongs to the field of catalytic synthesis of diethyl sebacate. According to the method, sebacic acid and anhydrous ethanol are taken as the raw materials, methyl sulfonic acid is taken as the catalyst, cyclohexane is taken as the water carrying agent, and after the reactions the reaction product is subjected to neutralization, water washing, distillation, and purification so as to obtain diethyl sebacate. Cyclohexane is taken as the water carrying agent, the reaction time is short, methyl sulfonic acid can be degraded, a product with a good appearance can be obtained without vacuum distillation, the acid/alkali using amount is little, the method is pollution-free; the product yield can reach at least 94% after one hour of reactions, the production cost is low, and the synthesis method is efficient and environment-friendly and can be applied to massive industrial production.

The invention relates to a method for preparing a high-purity food standard product diethyl sebacate. The method comprises the following steps: (1) selecting a raw material diethyl sebacate of which the purity content is not smaller than 98%; (2) adding the raw material diethyl sebacate into a saturated sodium chloride solution, performing stirring for 20-30 minutes, and allowing the stirred material to stand so as to separate a water phase; (3) adding a saturated potassium carbonate solution into the organic phase, performing heating to 40-50 DEG C, performing stirring for 25-30 minutes, performing heating to 50-60 DEG C, performing stirring for 25-30 minutes, and allowing the stirred material to stand so as to separate a water phase; and (4) performing water washing and drying, and performing reduced pressure distillation, thereby obtaining a standard product of which the content is 99.8% (GC), wherein the content of 99% (GC) is analytically pure. The method for preparing the high-purity food standard product diethyl sebacate, which is provided by the invention, is simple in process and good in operability, industrial production of companies can be met, self-operation of a laboratory can be met, the profit can be maximized, and the standard product does not need to be purchased with high price from the market.

The invention relates to a co-production method for capacitance-grade 2-butylsebacic acid and 2, 9-butylsebacic acid. The co-production method comprises the steps of carrying out nucleophilic substitution reaction on diethyl malonate and 1, 6-dibromohexane serving as raw materials in a strong alkali solution to obtain 2, 9-bis(ethoxycarbonyl)-diethyl sebacate, then, enabling 2, 9-bis(ethoxycarbonyl)-diethyl sebacate to react with n-butyl bromide in the strong alkali solution, and distilling to obtain 2-butyl-2, 9-diethoxycarbonyldiethyl sebacate and 2, 9-dibutyl-2, 9-diethoxycarbonyldiethyl sebacate; and respectively saponifying, acidifying and carrying out decarboxylic reaction to obtain 2-butylsebacic acid and 2, 9-butylsebacic acid. Due to the improvement on a technological process, a byproduct, namely 2-butyl-8-thyoxyloctanoic acid is prevented from being generated, and high-purity 2-butylsebacic acid has more excellent electrochemical properties than 2-butyloctanedioic acid sold on the market, so that the oxidation efficiency of electrolyte is increased, and the co-production method has favorable market prospects.

The invention discloses an insulated heat conduction film for a lithium ion battery. The insulated heat conduction film is used for covering the surface of a battery body. The insulated heat conduction film is prepared from the following ingredients including alkylolamide polyethylene oxide ester, inositol hexaphosphate, diethylene glycol monobutyl ether, dilauryl thiodipropionate, sodium secondary alkyl sulfonate, sodium hexametaphosphate, dibutyl sebacate, polytetrafluoroethylene, styrene and dibutyl phthalate. The insulation heat conduction film has dual attributes of insulation and heat conduction, and covers the surface of the battery body; the safety performance of the battery can be effectively improved.

The invention discloses a boric acid glycerin polyester-doped aluminum eletrolytic capacitor electrolyte, which is prepared by the following raw materials, by mass percentage, 4% to 7% of ammonium sebacate, 50% to 75% of ethylene glycol, 17% to 24% of diethylene glycol, 1% to 5% of dioctyl sebacate, 1% to 10% of boric acid glycerin polyester, 2% to 3% of water, 0.2% to 0.5% of mannitol, 0.3% to 0.5% of ammonium hydrogen azelate, 0.8% to 1.2% of a binder, and 0.2% to 0.8% of ammonium pentaborate. The preparation method comprises the following steps: (1) the ethylene glycol, the water and the boric acid glycerin polyester are heated to 60 DEG C and the heat is preserved for 0.5 h; 2) the temperature rises to 60 DEG C to 85 DEG C, the diethylene glycol and the ammonium hydrogen azelate are added; 3) the temperature rises to 130 DEG C within a certain time and the heat is preserved for 1 h, and the ammonium sebacate, the mannitol, the binder, the ammonium pentaborate and the dioctyl sebacate are added; and 4) the temperature falls to 95 DEG C to 105 DEG C, the heat is preserved for 1 h, and cooling to a room temperature in the air is carried out to obtain the electrolyte. The electrolyte has high conductivity and high sparking voltage, the electrolyte can resist sparking voltage of 508.5 DEG C, and the conductivity reaches 3.1*10<-3>S/cm.

A preparation method of an adsorbent for purification of diethyl sebacate: add water and polyvinyl alcohol in a reactor, and stir to obtain an aqueous phase; in the reactor, methyl methacrylate, bicyclo[2.2. 1] Hepta-2,5-diene, monomer containing rare earth ruthenium, 1,5,9-cyclododecatriene, vinyl laurate, stir evenly to obtain an oil phase; add the oil phase solution to the Put it in a reaction kettle with prepared water phase, and then react at a suitable temperature. After the reaction, the reaction mixture is extracted with acetone and dried in vacuum to obtain an adsorbent for purifying diethyl sebacate.

The invention discloses a preparation method of biodegradable caster oil-based lubricant oil and belongs to the field of preparation by virtue of biotechnology. The preparation method of the biodegradable caster oil-based lubricant oil comprises the following steps: adding alkali for cracking caster oil, so as to obtain sebacic acid; then preparing a self-made phosphotungstic/silica catalyst, and esterifying in presence of the catalyst, so as to obtain flavescent di-iso-octyl sebacate; mixing the flavescent di-iso-octyl sebacate with caster oil in a mass ratio of 3:2, and adding a right amount of thickening agent for regulating viscosity; and then concentrating and dehydrating, and adsorbing with activated carbon, so as to finally obtain the biodegradable caster oil-based lubricant oil. Examples prove that the preparation method of the biodegradable caster oil-based lubricant oil has the advantages that no harm is caused to the surrounding environment in an operation process, the duration of usage is prolonged by more than 5 months after use compared with common lubricant oil, damages caused by machine fraction are reduced, and the service life of a machine is prolonged.

The invention discloses a glass adhesive and a preparation method thereof. The glass adhesive is prepared from ethyl cyanoacrylate, polyvinyl acetate, hydroxypropyl methylcellulose, stearic acid, pentamethyldiethylenetriamine, dimethyl sebacate, tricalcium phosphate, silica, glass frit, dioctyl phthalate and azodicarbonamide. The preparation method comprises the following steps: stirring and mixing the polyvinyl acetate, hydroxypropyl methylcellulose, dimethyl sebacate, tricalcium phosphate and glass frit to obtain a first mixture, adding the first mixture into a reactor, adding stearic acid and azodicarbonamide under a vacuum condition, and performing heating and stirring to obtain a first material; adding the ethyl cyanoacrylate, pentamethyldiethylenetriamine, silica and dioctyl phthalate to the first material, and performing heating and stirring under the protection of an inert gas to obtain the glass adhesive. The glass adhesive provided by the invention has the advantages of goodadhesion and good resistance to acids and alkalis.

The invention discloses pesticide auxiliary agents for improving the action effect of glyphosate. The pesticide auxiliary agents comprise tributyl phosphate (TBP), dibutyl sebacate (DBS) or diethyl sebacate (DES), wherein the concentration of tributyl phosphate is 200-400 [mu] g/ml, the concentration of dibutyl sebacate is 10-30 [mu] g/ml, and the concentration of diethyl sebacate is 40-60 [mu] g/ml. The pesticide auxiliary agents are simple in dosage form (the three pesticide auxiliary agents are all single dosage forms), can play a significant role in synergism of herbicide glyphosate in agricultural production, reduce the usage amount and production cost of glyphosate, and provide a new thought and lay a working foundation for research and development of efficient and environment-friendly pesticide assistants in the future.

The invention discloses a polyformaldehyde composite low in formaldehyde emission. The polyformaldehyde composite is prepared from, by weight, 100 parts of POM resin, 0.1-0.5 part of a main antioxidant, 0.05-0.3 part of an auxiliary antioxidant, 0.5-1.2 parts of diiso-octyl sebacate, 0.2-0.8 part of N,N'-ethyl distearamide and 0.05-0.3 part of allantoin. According to the polyformaldehyde composite, N,N'-ethyl distearamide (EBS), the main antioxidant, the auxiliary antioxidant, the allantoin and the diiso-octyl sebacate are selected as a stable processing system of POM, and the polyformaldehydecomposite low in smell grade, low in formaldehyde emission and good in color stability is prepared. Meanwhile, the invention discloses a preparation method of the polyformaldehyde composite.

The invention relates to the technical field of chemical substance detection, in particular to a method for detecting dibutyl sebacate and acetyl tributyl citrate in a film material. The method comprises: weighing a to-be-detected film material and carrying out extraction by using an organic solvent to obtain an extracting solution; and detecting the extracting solution by using gas chromatography-mass spectrometer. The method is operated simply and easily; the result is accurate and reliable; the potential safety hazard in the film material can be discovered timely to realize an early warningeffect; and a technical support is provided for the risk monitoring of membrane material packaging products in China. The method has the broad application prospects and great economic and social values.

The invention discloses a synthetic method for the anti-amebic-dysentery drug phanquone. The synthetic method comprises the following steps: adding 5-hydroxy-6-methoxy-4,7-diazaphenanthrene and a potassium chloride solution into a reaction vessel, raising a solution temperature, controlling a stirring speed, and carrying out a reaction; and adding a sodium sulfate solution, raising the solution temperature, then adding a diethyl sebacate solution, adding cobaltocene powder in batches within a certain period of time, carrying out a reaction, lowering the temperature, adjusting a pH value, thencarrying out washing with a benzyl chloride solution a plurality of times, then carrying out washing with a 2,3-dimethylbutane solution a plurality of times, carrying out recrystallization in a 2,4-dichlorotoluene solution, and then carrying out dehydration with a dehydrating agent so as to obtain the finished phanquone.

The present invention addresses the problem of providing a rapamycin-containing external preparation which has excellent stability and is effective in the treatment of skin diseases. Provided is an external preparation containing (a) rapamycin, (b) at least one substance selected from the group consisting of ethylene glycol salicylate, diethyl sebacate, and glyceryl triacetate, and (c) propylene glycol and/or polyethylene glycol, also provided are: an external preparation which further contains an antioxidant; and an external preparation which further contains a lipophilic solvent solution of an antioxidant.

The invention provides an anti-emulsification type neutralization device for preparing dioctyl sebacate. The anti-emulsification type neutralization device is characterized by comprising neutralization stirrers, a transfer pipe and a neutralization separator, wherein the bottom of a neutralization reaction chamber is provided with a plurality of stirrers, one side of the lower portion of the neutralization reaction chamber is provided with a transfer pipe, the other end of the transfer pipe is connected with the neutralization separator, and an oil-water distributor and a sand flushing deviceare arranged inside the neutralization separator. Compared with the prior art, by increasing the volume of the neutralization reaction chamber, the full contact time of a catalyst and an alkali liquoris increased, the catalyst is effectively hydrolyzed, so that the catalyst is easier to separate, the oil-water distributor can effectively distribute oil and water, the retention time of the oil andthe water is increased, the sediment at the bottom can be washed by installing a sand flushing device through regular water flow, and the sludge sediment can be prevented from occupying the effectivevolume. An auxiliary bottle filled with a demulsifier is arranged in the transfer pipe, and the demulsification phenomenon can be effectively eliminated by adding 10-20 ppm of demulsifier into a material.

The invention discloses a caster-oil plant base environment-friendly cutting fluid composition. By mass ratio, 50% of trimethylolpropane oleic acid ester TMP318 and 50% of caster-oil plant base diethyl sebacate are adopted to be combined to serve as base oil, and multiple composite additives are matched. The caster-oil plant base environment-friendly cutting fluid composition comprises an extreme pressure agent, an anti-wear agent, an antirust agent, an emulsion agent, a hard water stabilizer, an antibacterial corrosion prevention agent, a PH stabilizer, a coupling agent, an antioxidant, a co-emulsifier, a defoaming agent, deionized water and a cuttings settling agent. The composition has good cooling performance, lubricating performance, bearing capability, friction and vibration reducing performance, cleaning performance, a cuttings discharge function, antirust performance, anti-oxidization and anti-corrosion performance, defoaming performance and decay resistance, is weak in odor and free of irritation, has a good antimicrobial property, is not prone to smelliness or rancidification and has long service life, and residual liquid is easy to treat.

The invention relates to a refining agent for synthesizing di-n-butyl sebacate and a preparation method thereof. The method for synthesizing di-n-butyl sebacate comprises the steps of esterification, water washing, dealcoholization, refining and filtration, wherein the refining agent used in the refining step is prepared by mixing potassium carbonate, magnesium hydroxide, activated carbon and magnesium sulfate according to a certain ratio. The invention facilitates the industrial production and improves the production efficiency; as the high-vacuum refining step is omitted in the production process, the investment of high-vacuum pump equipment is avoided, thereby saving the equipment investment, lowering the production cost and improving the market competitiveness of the product; the refining agent is prepared by mixing potassium carbonate, magnesium hydroxide, activated carbon and magnesium sulfate according to a certain ratio, and each component is low in price and easy to purchase; the product quality and long-term storage stability of the product is simultaneously ensured; the preparation method is simple to implement and convenient to operate; and the investment of production equipment is saved, and the production efficiency is improved.

The invention relates to a quick preparation method of di-n-hexyl sebacate. The method includes the following steps: (1) an esterification reaction step: putting sebacic acid, n-hexyl alcohol and concentrated sulfuric acid into a reaction kettle, stirring, heating to carrying out boiling reaction, keeping a boiling reflux state, and separating water; (2) a water washing step: adding water into the mixture after the esterification reaction, stirring evenly, standing to layer, and removing an aqueous layer; (3) a dealcoholization step: dealcoholizing the mixture after the water washing, to obtain a crude product di-n-hexyl sebacate; and (4) a refining step and a filtration step to obtain the di-n-hexyl sebacate product. The preparation method of di-n-hexyl sebacate has the advantages of convenient operation, simple and feasible operation, and easy realization of industrialized production, and improves the production efficiency.

The invention provides an electrostatic DOS (dioctyl sebacate) oil coating method. The electrostatic DOS oil spraying method includes spraying out compressed air, atomizing DOS oil to form tiny oil particles under effects of jetting negative pressure of the compressed air and leading the tiny oil particles to move under effects of secondary airflow; ionizing the tiny oil particles to lead the tiny oil particles to have positive charge and obtaining tiny charged oil particles; and delivering the tiny charged oil particles to a place nearby a surface of a grounded aluminum plate, leading the tiny charged oil particles to move and be uniformly absorbed on the surface of the aluminum plate located at a high-voltage electric field under effects of the high-voltage electric field, and accordingly achieving the purpose of coating the DOS oil on the surface of the aluminum plate. The electrostatic DOS oil spraying method is applied to a DOS oil coating work procedure in belt production, the content, the chemical ingredients and the state of the DOS oil are identical to those of DOS oil on a final product of a traditional DOS oil roll coating method, but in the method, releasing agent and a baking step are omitted, and accordingly production cost is lowered.