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62 results about "Thiodiglycol" patented technology
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Thiodiglycol, or bis(2-hydroxyethyl)sulfide (also known as 2,2-thiodiethanol or TDE), is the organosulfur compound with the formula S(CH₂CH₂OH)₂. It is miscible with water and polar organic solvents. It is a colorless liquid. Thiodiglycol is manufactured by reaction of 2-chloroethanol with sodium sulfide. It is structurally similar to diethylene glycol.
Silver and silver alloy plating bath
InactiveUS7628903B1Extension of timeImprove stabilityAnti-corrosive paintsLiquid/solution decomposition chemical coatingIndiumThiodiethylene Glycol
A silver and silver alloy plating bath, includes (A) a soluble salt, having a silver salt or a mixture of a silver salt and a salt of a metal such as tin, bismuth, indium, lead, and the like; and (B) a particular aliphatic sulfide compound, such as thiobis(diethyleneglycol), dithiobis(triglycerol), 3,3′-thiodipropanol, thiodiglycerin, 3,6-dithiooctane-1,8-diol, and the like, which contain at least one or more of an ether oxygen atom, a 1-hydroxypropyl group, a hydroxypropylene group, or two or more of a sulfide bond in the molecule, and not containing a basic nitrogen atom. Compared to baths containing aliphatic monosulfide compounds, such as thiodiglycol or beta-thiodiglycol, which do not contain an ether oxygen atom, 1-hydroxypropyl group, a hydroxypropylene group, or two or more of a sulfide bond in the molecule, by having these particular compounds, the plating bath of the present invention has excellent stability over extended time, excellent co-deposition of silver and various metals, and excellent appearance of the electrodeposition coating.
Owner:ISHIHARA CHEM +1
Electric DC-cable with an insulation system
InactiveUS20020039654A1Shorten production timeLow production costPlastic/resin/waxes insulatorsYarnCross-linkElectrical conductor
An insulated DC-cable and method for production of an insulated DC-cable with an insulating system comprising an extruded cross-linked polyethylene based insulation disposed around the conductor. The extruded polyethylene based compound comprises additives such as cross-linking agent, scorch retarding agent and antioxidant. The scorch retarding agent comprises a compound (D), 2,4-diphenyl-4-methyl-pentene-1 and the antioxidant comprises a compound (C), a diester of 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionicacid and thiodiglycol. The compounded polyethylene based resin composition is extruded and cross-linked at a temperature and for a period of time sufficient enough to cross link the insulation. The temperature and the period of time upon extrusion and cross-linking are limited so as to substantially suppress or essentially avoid undesired polar by-products being formed in the cross-linked composition.
Owner:GUSTAFSSON BILL +7
Preparation method of 3,4-ethene dioxythiophene
The invention discloses a preparing method of 3, 4-ethylene dioxide thiofuran (EDOT), which comprises the following steps: adopting reasonable processing line; choosing thiodiglycol as initial raw material; esterifying; condensing; Williamson; hydrolyzing; decarboxylating; getting the end product. This invention possesses simple craft, low cost and high receiving rate, which is fit for commercial product.
Owner:贝利科技(重庆)有限公司
Fluorescent disperse dye ink for inkjet printing and preparation method of fluorescent disperse dye ink
The invention discloses fluorescent disperse dye ink for inkjet printing and a preparation method of the fluorescent disperse dye ink. The ink consists of a disperse dye, a fluorescent agent, a versatile dispersant, an organic solvent, a wetting agent and a surfactant. The preparation method comprises the following steps: stirring the disperse dye, the fluorescent agent, sodium lignin sulfonate, diethylene glycol and deionized water at a low speed by using a stirrer, and grinding in a grinding dispersion mill, thus obtaining disperse dye mill base with a solid content of 15 percent; stirring the dye mill base and the deionized water in the stirrer, adding an organic solvent formed by mixing isopropanol, thiodiglycol and biglycol ether and the wetting agent and the surfactant, and adding a preservative after the PH value is regulated to be 8-9; and filtering the mixed ink by using a millipore filter membrane, and further filtering the filtrate through the millipore filter membrane. The fluorescent disperse dye ink can be subjected to jet printing onto heat transfer paper from a piezoelectric inkjet printing machine, or is directly subjected to jet printing onto a chemical and blended fabric, and is suitable for large-scale industrial production.
Owner:绍兴旭泰纺织品有限公司 +1
Low sediment friction modifiers
InactiveUS20050124510A1Improve the lubrication effectAvoid excessive sedimentationLiquid carbonaceous fuelsAdditivesSulfonateAlkaline earth metal
An additive mixture for lubricant oils includes an overbased alkaline earth metal sulfonate, and at least one friction modifier selected from the group consisting of an overbased alkaline earth carboxylate, the reaction product of an alkanolamine with a fatty acid or a fatty acid ester and the reaction product of thiodiglycol or a dialkylene glycol with a fatty acid or a fatty acid ester. The additive mixture, when combined with a lubricant stock, provides a lubricant composition characterized by less sedimentation during storage.
Owner:CHEMTURA CORP
Preparation method of thiophenol compound antioxidant product
ActiveCN103319387AGood synergyReduce dissolution lossSulfide preparationPropionateThiodiethylene Glycol
The invention relates to a preparation method of a thiophenol compound antioxidant product, relating to the technical field of preparation of antioxidant products. A process technical method of the thiophenol compound antioxidant product comprises the following steps of: taking 3, 5-methyl ester and thiodiglycol as raw materials, performing ester exchange reaction under the actions of a catalyst and a color blocking agent, and generating a reaction product mixed solution containing 2, 2'-thiodiethyl bis(3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionate by continuously removing a byproduct, namely methanol during the reaction process; adding an appropriate amount of phosphite ester-like compound into the reaction product mixed solution, and generating a new phosphite ester-like compound by secondary ester exchange reaction; and selecting a recrystallization solvent, performing recrystallization and refining on the reaction product mixed solution, and performing solid-liquid separation to obtain a while granular crystal product.
Owner:宁波福天新材料科技有限公司
High-leveling polyester resin as well as preparation method and application thereof
ActiveCN108484894ASegment softGood fluidity in molten statePowdery paintsPolyester coatingsMolten stateGlycerol
The invention belongs to the technical field of powder coating, particularly relates to high-leveling polyester resin, and further discloses a preparation method of the high-leveling polyester resin and application of the high-leveling polyester resin to preparation of HAA system powder coating. The high-leveling polyester resin provided by the invention is formed through copolymerization of diethyl phenyl malonate, a citrate monoester compound, diglycolic acid, thiodiglycol, octyl glycerol, neopentyl glycol and hexahydrophthalic anhydride. The high-leveling polyester resin, has a soft chain segment, high molten state flowability and low high-temperature viscosity, and can be applied to preparation of HAA curing system powder coating.
Owner:黄山嘉恒科技有限公司
Preparation method of thiodiethanethiol
The invention provides a preparation method of thiodiethanethiol. The preparation method comprises the following steps: a) mixing thiodiglycol, thiourea and hydrochloric acid to carry out a salt forming reaction and then adding an alkaline solution for hydrolysis reaction to obtain a reaction mixture; b) skimming the reaction mixture obtained in the step a) to separately obtain a thiodiethanethiolcoarse product and reaction wastewater; and then washing the thiodiethanethiol coarse product to separately obtain thiodiethanethiol and washing waste water; and c) separately flocculating the reaction waste water and the washing waste water obtained in the step b) to obtain circulating water. Compared with the prior art, the preparation method provided by the invention has relatively high product quality and yield, and can achieve circular use of waste water. Experimental results verify that the content of thiodiethanethiol prepared by the preparation method is stabilized at over 99%, and the yield is over 98%, and zero discharge of the waste water is achieved.
Owner:SHANDONG EFIRM BIOCHEMISTRY & ENVIRONMENTAL PROTECTION CO LTD
Electrotinning additive and preparation method and use method thereof
The invention belongs to the technical field of electroplating and relates to an electrotinning additive and a preparation method and a use method thereof. The electrotinning additive is composed of 3-5% of non-ionic surface active agents, 5-10% of beta-naphthol polyoxyethylene ether, 1-3% of alkyl glycoside, 1-3% of thiodiglycol ethide, 1-2% of catechol and the balance deionized water. According to the electrotinning additive and the preparation method and the use method thereof, the electroplating effect of tin electroplating liquid at 20-25 DEG C can be the same as the electroplating effect without the additive at 40-50 DEC C, and therefore the energy consumption of electroplating can be lowered, and the environmental friendliness is higher.
Owner:JIANGSU AISEN SEMICON MATERIAL CO LTD
Position fixable polymerized precursor of polythiazole monomer and its synthesis
InactiveCN1644580AShort reaction timeHigh yieldOrganic chemistryAlkyl transferPolythiophene derivative
A 3,4-alkdioxthipphene and 3,4-alkylenedioxthipphene-2,5-dicarboxylic acid ester and its synthesizing method are disclosed. The method is carried out by: taking thiodiglycol diester as materials, comprehensive reacting with Arrcostab oxalate, obtaining intermediate product, and alkylation reacting. It achieves simple operation, and short reacting period.
Owner:徐良衡
Synthetic method for epoxy end group polythioether liquid rubber
ActiveCN104558584AModerate viscosityGood adhesionPoly(ethylene glycol) diglycidyl etherHeat resistance
The invention discloses a synthetic method for epoxy end group polythioether liquid rubber. The method comprises the following steps: synthesizing sulphydryl end group polythioether liquid rubber by using thiodiglycol, hydroxyethyl-2-hydroxypropyl thioether and the like as main monomers; then using polyethylene glycol diglycidyl ether resin as a transforming agent so as to transform a sulphydryl end group into an epoxy end group so as to finally generate the end group polythioether liquid rubber. The technology has the advantages that the polyethylene glycol diglycidyl ether resin is adopted as the transforming agent of the end group, the defects that the viscosity of a sulphydryl in traditional epoxy modification technology is high, solvents of toluene, butanone and the like are needed to perform dilution, the reaction exotherm is violent, and a side effect is easy to generate are overcome; reactions are smooth, the product quality is easy to control, the viscosity of the generated epoxy end group polythioether liquid rubber is moderate, and the stability is good; the strength of epoxy resin and the toughness and the heat resistance of polythioether rubber are reserved after the end group is transformed, so that the brittleness of the epoxy resin is improved, and the adhesive property of materials is improved.
Owner:锦西化工研究院有限公司
Preparation method of thioether sterically hindered phenol antioxidant
ActiveCN111484432AReduce processingThe synthesis process is simpleOrganic compound preparationSulfide preparationPropanoic acidPtru catalyst
The invention discloses a preparation method of a thioether sterically hindered phenol antioxidant, which comprises the following steps: a first stage: carrying out transesterification on 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) methyl propionate and thiodiglycol under the action of a solid base catalyst; a second stage: removing by-product methanol under reduced pressure; and a third stage, alternately removing unreacted raw materials by nitrogen purging and pressure reduction, cooling, filtering, and collecting the solid base catalyst to obtain the target product. The synthesis process is simple, solvent crystallization purification, drying and other operations do not need to be conducted on a reaction mixture, and the product can be obtained through direct cooling; the production period is short, the later solvent waste liquid treatment is reduced, and the production cost is obviously reduced.
Owner:XINXIANG RICHFUL LUBE ADDITIVE CO LTD
Comprehensive utilization method of sodium hydrosulfite waste residue
ActiveCN103694101AOrganic compound preparationHydroxy compound preparationSolubilityThiodiethylene Glycol
The present invention discloses a comprehensive utilization method of sodium hydrosulfite waste residue. The comprehensive utilization method comprises that: (1) a vacuum distillation method is adopted to remove water in sodium hydrosulfite waste residue and concurrently obtain ethylene glycol; (2) the remaining waste residue obtained from vacuum distillation is washed by using an organic solvent to obtain an organic phase I and a solid A; (3) according to different solubilities of the solid in the solvent, sodium isethionate and sodium formate can be obtained; and (4) the organic phase I is subjected to vacuum distillation to recover the solvent and concurrently obtain thiodiglycol. According to the invention, the waste residue produced in the sodium hydrosulfite production process is subjected to comprehensive utilization and is purified to obtain four organic products, such that enterprise waste emission is reduced while economic benefits and social benefits are brought to enterprises.
Owner:SHENZHEN GANGCHUANG BUILDING MATERIAL
Synthesis method of thioether phenolic antioxidant
PendingCN112279792AEasy to separate and recycleReduce dosageOrganic-compounds/hydrides/coordination-complexes catalystsCatalytic reactionsPropanoic acidPtru catalyst
The invention relates to a synthesis method of a thioether phenolic antioxidant, which comprises the steps of synthesizing 2,2'-thiodiethyl bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] by taking 3-(3,5-di-tert-butyl-4-hydroxyphenyl) methyl propionate and thiodiglycol as raw materials and using a supported ester exchange catalyst. The supported transesterification catalyst provided by theinvention is low in dosage, cheap, easy to obtain, efficient and easy to separate, and can be recycled for multiple times, and meanwhile, the problem that the product quality is influenced by catalystresidues in the reaction is solved.
Owner:利安隆(天津)新材料科技有限公司
Special additive for electrolytic manganese metal and preparation method thereof
InactiveCN102691072AReduce dosageThe quality of electrolytic manganese is excellentPhotography auxillary processesChemistryThiodiglycol
The invention relates to a special additive for electrolytic manganese metal and a preparation method thereof. The special additive for the electrolytic manganese metal disclosed by the invention is prepared from hydrazine hydrate, thiodiglycol, luminescence agent and water. The special additive disclosed by the invention is used for the currently universal production process of electrolytic manganese, the change in production process or the addition of any devices is not needed, the dosage of selenium dioxide can be reduced by 50%, the current efficiency achieves 70%, the recovery rate of Mn<2+> in an electrolyte is about 90%, and the quality of the electrolytic manganese is superior to that of a product by totally using the selenium dioxide.
Owner:湘西自治州三泰精细化工有限责任公司
High-temperature-aging-resistant rubber
ActiveCN106009106AImprove high temperature resistanceImprove aging resistanceEpoxyMicrocrystalline wax
The invention discloses high-temperature-aging-resistant rubber and belongs to the field of materials. The rubber is prepared from natural rubber, chloroprene rubber, butadiene-acrylonitrile rubber, a performance additive, zinc oxide, stearic acid, carbon black, mica powder, iso-propyl xanthogen disulfide, microcrystalline wax, sulphur, 2,2'-thiodiglycol, 3-5 parts of epoxy fatty acid polyol ester and rosin texanol ester alcohol. The performance additive comprises 2-heptadecyl-N-aminoethyl imidazoline epoxypropane, polybenzimidazole benzophenanthrene phenanthroline and polyquinoline. 2-heptadecyl-N-aminoethyl imidazoline epoxypropane, polybenzimidazole benzophenanthrene phenanthroline and polyquinoline serve as the performance additive, and the high-temperature-aging resistance of the rubber is greatly improved. When iso-propyl xanthogen disulfide serves as an accelerant, 2,2'-thiodiglycol serves as an anti-aging agent, and a combination of epoxy fatty acid polyol ester and rosin texanol ester alcohol serves as a plasticizer, the high-temperature-aging resistance of the rubber is more excellent.
Owner:许展
Aqueous ink for mimeograph printing and method for mimeograph printing
A water-based ink for stencil printing, which comprises an unsaturated carboxylic acid-based water-soluble polymer and triethylene glycol. The ink preferably further comprises β-thiodiglycol as an optional component.
Owner:RISO KAGAKU CORP
Method for synthesizing thiodiglycol dimyristate
The invention discloses a method for synthesizing thiodiglycol dimyristate, which comprises the following steps: in the presence of catalyst and water entrainer, thiodiglycol is reacted with myristic acid at the temperature of 170-180DEG C, wherein the water entrainer is dimethylbenzene, and the catalyst is concentrated sulfuric acid and, p-toluenesulfonic acid or activated carbon-loaded p-toluenesulfonic acid prepared by the following method: soaking the rinsed and dried granular activate carbon in a p-toluenesulfonic acid solution to enable the loaded mass fraction of the p-toluenesulfonic acid to be 15-25%, filtering and drying the filter residue to obtain the thiodiglycol dimyristate. The invention has simple and feasible process, easily-obtained raw materials and high yield; and when the product of the invention is applied in polypropylene, the tests of melt flow rate, tensile strength, elongation at break and impulse strengthen show that the product has excellent oxidation resistance.
Owner:MAOMING COLLEGE
Aqueous ink for mimeograph printing and method for mimeograph printing
An aqueous ink for mimeograph printing, which comprises a water-soluble polymer based on an unsaturated carboxylic acid and triethylene glycol. Preferably, the ink further contains beta-thiodiglycol as an optional component.
Owner:RISO KAGAKU CORP
Sound-absorbing cotton material and preparation method thereof
InactiveCN107778655AAchieve stableImprove antioxidant capacityPhenolic antioxidantThiodiethylene Glycol
The invention discloses a sound-absorbing cotton material and a preparation method thereof. The cotton material comprises the following components in parts by weight: 100-120 parts of polypropylene, 0.05-1 part of a hindered phenolic antioxidant, 0.05-1 part of a phosphite antioxidant, 0.02-0.5 part of an acid absorbing agent, and 0.05-1 part of a combination synergist. According to the invention,combined action of the hindered phenolic antioxidant and the phosphite antioxidant in the components can realize higher stability and oxidation resistance of the component material; and the combination synergist selects thiodiglycol distearate and / or distearyl thiodipropionate, so that synergistic effects produced between the combination synergist and the hindered phenolic antioxidant enhance theoxidation resistance of the material, and enhances the yellowing resistance of the material.
Owner:杭州宸达新材料有限公司
Electric DC-cable with insulation system
InactiveCN1286797AExtend working lifeEliminate coking problemsPlastic/resin/waxes insulatorsPower cablesCross-linkElectrical conductor
An insulated DC-cable and method for production of an insulated DC-cable with an insulating system comprising an extruded cross-linked polyethylene based insulation disposed around the conductor. The extruded polyethylene based compound comprises additives such as cross-linking agent, scorch retarding agent and antioxidant. The scorch retarding agent comprises a compound (D), 2,4-diphenyl-4-methyl-pentene-1 and the antioxidant comprises a compound (C), a diester of 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionicacid and thiodiglycol. The compounded polyethylene based resin composition is extruded and cross-linked at a temperature and for a period of time sufficient enough to cross link the insulation. The temperature and the period of time upon extrusion and cross-linking are limited so as to substantially suppress or essentially avoid undesired polar by-products being formed in the cross-linked composition.
Owner:ABB (SCHWEIZ) AG
Preparation method of N-(4-(2-ethylhexyloxy) phenyl)-1, 1-dioxothiomorpholino
The invention relates to a preparation method of N-(4-(2-ethylhexyloxy) phenyl)-1, 1-dioxothiomorpholino. The method is characterized by comprising the following steps of: adding 10 parts by weight of thiodiglycol and 10 parts by weight of water to a reaction kettle, then adding 1-2 parts by weight of quaternary ammonium salt as a catalyst, adding 65-75 parts by weight of hydrogen peroxide dropwisely into the reaction kettle, after dropping, preserving the heat of the mixture and allowing it to stand for one hour so as to generate bishydroxyethylsulfone, adding p-aminophenol to conduct a condensation reaction for 3 hours, then adding bromoisooctane for a further condensation reaction for 3 hours, pouring n-heptane into a product stock solution, stirring the solution and allowing it to stand, taking out the extraction phase and evaporating the solvent to dryness, thus obtaining a finished product. Application of the method provided in the invention can prepare products with an overall yield of over 86% and effective content of more than 98%, so the method is completely applicable to large scale industrial production. With substantial economic benefit, social benefit and ecological benefit, the method provided in the invention fully meets the requirements of safety, environmental protection and high efficiency that are advocated by the nation in developing low carbon economy.
Owner:XIANTAO WYLSON CHEM
Procaine hydrochloride drug intermediate p-nitrobenzoic acid synthesis method
InactiveCN108238951AAvoid pollutionReduction of intermediate links in the reactionOrganic chemistryOrganic compound preparationP-nitrobenzoic acidAlcohol
The invention discloses a procaine hydrochloride drug intermediate p-nitrobenzoic acid synthesis method, which comprises: adding 4-nitro-6-hydroxybenzyl alcohol in a reaction container, increasing thetemperature of the solution, controlling the stirring, adding a 3-methyl-2-butanone solution and samarium oxide powder, increasing the temperature of the solution, continuously carrying out the reaction, reducing the temperature of the solution, filtering, washing multiple times with a potassium sulfate solution, washing multiple times with an oxalic acid solution, washing multiple times with a 2-chloro-2-methylpropane solution, re-crystallizing in a thiodiglycol solution, and dehydrating with a dehydrating agent to obtain the finished product p-nitrobenzoic acid.
Owner:CHENGDU QIESITE TECH CO LTD
Synthesis method for bis (2-mercaptoethyl) sulfide
The invention relates to a synthesis method and production technology for bis (2-mercaptoethyl) sulfide. The method uses thiodiglycol and thiourea as raw materials to synthesize target products after two reacting steps of substitute salifying and alkaline hydrolysis, product purity is larger than 99%, total yield of the two steps is improved to more than 98% on the basis of 80% in the existing technology. The synthesis method has the advantages of being free of rigor conditions in production, smooth and safe in operation, less in three wastes, high in product purity, low in production cost and the like and is suitable for being applied to industrial production.
Owner:INSIGHT FINECHEM +1
Preparation and application of sulfonitride heavy metal ion chelating polymer microspheres
InactiveCN102335576AEnhanced chelation removal effectInhibition releaseOther chemical processesWater contaminantsMicrospherePolyethylene glycol
The invention discloses preparation and application of sulfonitride heavy metal ion chelating polymer microspheres, relating to the technical field of preparation of functionalized polymer materials and treatment of waste water including heavy metal ions. The sulfonitride heavy metal ion chelating polymer microsphere is synthesized by suspension polymerization with 4-vinylpyridine and polyethylene glycol methacrylate as polymerizing monomers and thiodiglycol dimethacrylate as a cross-linking agent; the cross-linked polymer microsphere contains sulfur and nitrogen functional ligands to enhancethe chelating removal effect for the heavy metal ions, achieve the polymerization and the chelating agent functionalization by one-step method and effectively avoid the release of a chelating agent; and the cross-linked polymer microsphere has excellent mechanical intensity and can be used for filling columns or beds to remove the heavy metal ions. The preparation method is a high-efficient, simple and feasible process flow, is not easy to cause the secondary pollution, and has the advantages of simple structure of required equipment, convenience for operation, low production cost, and easiness in controlling conditions.
Owner:JIANGNAN UNIV
High adhesion printing ink and preparation method thereof
The invention discloses high adhesion printing ink. The high adhesion printing ink is characterized by being prepared from the following raw materials in parts by weight: 20 to 30 parts of chlorinatedpolypropylene resin, 10 to 20 parts of polyacrylic resin, 9 to 24 parts of organic solvent, 1 to 5 parts of inorganic filler, 0.2 to 1.0 part of modifier, 0.1 to 0.5 part of cosolvent and 1 to 5 parts of disperse dye, wherein the solvent is prepared by mixing diethylene glycol, thiodiglycol and ethyl acetate in a mass ratio of 1 to 1 to 1, and the inorganic filler is less than or equal to 10 mu min particle size. The printing ink does not need to be doped with graphene, and is low in cost and high in adhesion fastness. The invention correspondingly discloses a preparation method of the highadhesion printing ink. The printing ink prepared with the method has the advantages of high adhesion, and flatness and smoothness after film formation.
Owner:浙江新中商务印刷有限公司
Special organic silicon defoamer for textile industry
InactiveCN104862968AFast defoamingGood anti-foam performanceFibre treatmentSodium dithioniteSorbitan
A special organic silicon defoamer for the textile industry is prepared from raw materials in parts by weight as follows: 3-5 parts of petroleum sulfonic acid, 2-4 parts of hexamethylenetetramine, 5-17 parts of dialdehyde starch, 8-16 parts of polyvinyl acetate, 12-22 parts of white carbon black, 5-7 parts of polyether modified silicone, 3-5 parts of polyoxyethylene sorbitan fatty acid ester, 2-6 parts of thiodiglycol, 4-7 parts of thiourea dioxide, 5-8 parts of sodium hydrosulfite, 8-14 parts of a thickener, 4-7 parts of silicone oil with low hydrogen content, 2-5 parts of hydroxy-terminated polydimethylsiloxane, 4-7 parts of aluminum trioxide and 2-4 parts of sodium chloride. The special organic silicon defoamer for the textile industry has the benefits that the defoamer has the characteristics of fast defoaming, good foam inhibiting performance, stable chemical property as well as heat resistance.
Owner:QINGDAO DEXITUOCHUANG HIGH TECH CO LTD
Method for continuously synthesizing thiodiglycol
ActiveCN105399651AGuaranteed gas phase mixingEasy to removeSulfide preparationThiodiethylene GlycolPhotochemistry
The invention discloses a method for continuously synthesizing thiodiglycol. The method is based on a tubular reactor, ethylene oxide and sulfureted hydrogen serve as raw materials, the reaction is performed at 0-40 DEG C, and thiodiglycol is synthesized by liquid phase catalysis at normal temperature and normal pressure. The operation is simple, the conditions are mild, the method is green, environmentally friendly and free of three wastes, and a catalyst can be reused; the reaction standing time is short, no back-mixing occurs, no by-product is generated, slightly excessive ethylene oxide can be recycled, the production cycle is shortened, and the production cost is reduced. The tubular reactor can react continuously, the product purity can reach 98-99.5%, and the yield of thiodiglycol can reach 92-99% according to hydrogen sulfide.
Owner:SHANDONG EFIRM BIOCHEMISTRY & ENVIRONMENTAL PROTECTION CO LTD
Oxidation resistance reinforcing strip metallic aluminum pigment
InactiveCN106084293AGood dispersionImprove corrosion resistancePigment treatment with macromolecular organic compoundsPigment treatment with organosilicon compoundsMetallic aluminumPlastic materials
The invention discloses an oxidation resistance reinforcing strip metallic aluminum pigment. The pigment is prepared from the following raw materials in parts by weight: 70-75 parts of flaky aluminum powder, 14-15 parts of methacryloxy propyl trimethoxyl silane, proper amount of absolute ethyl alcohol, 28-30 parts of trimethylolpropane triacrylate, 1-1.2 parts of acrylic acid, 0.09-0.1 part of azodiisobutyronitrile, 1.75-1.9 parts of polyvinylpyrrolidone, 2.5-3 parts of N,N-ethylidene bisricinoleamide, 17-19 parts of polypropylene, 1.5-2 parts of antioxidant 1010, 3-3.5 parts of thiodiglycol, 2-2.5 parts of lauric acid and 0.05-0.06 part of p-toluenesulfonic acid. The pigment can obviously reinforce the oxidation resistance of the products, can be uniformly dispersed in plastic materials and has high storage stability by preparing an antioxidant through reaction between thiodiglycol and lauric acid, mixing the antioxidant with the antioxidant 1010, then internally mixing the mixture with polypropylene and then adding the mixture to the products.
Owner:HEFEI SUNRISE PIGMENTS
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