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42 results about "Hexadienoic Acid" patented technology
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Sorbic acid, or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative. It has the chemical formula CH 3 (CH) 4 CO 2 H. It is a colourless solid that is slightly soluble in water and sublimes readily.
Production of 2,4-hexadienoic acid and 1,3-pentadiene from 6-methyl-5,6-dihydro-2-pyrone
ActiveUS20120116119A1Organic compound preparationPreparation from carboxylic acid esters/lactonesPtru catalystHexadienoic Acid
Described is a method of making sorbic acid, pentadiene, or 3-penten-2-one. The method includes partially hydrogenating 4-hydroxy-6-methyl-2-pyrone (HMP) to yield 5,6-dihydro-4-hydroxy-6-methyl-2H-pyran-2-one (4-DHMMP). Then, if 3-penten-2-one is desired, thermally decomposing the 4-DHMMP to yield 3-penten-2-one. If sorbic acid or pentadiene are desired, the 4-DHMMP is hydrogenated to yield 4-hydroxy-6-methyltetrahydro-2-pyrone (4-HMTHP). The 4-HMTHP is then dehydrated by contacting it with a solid acid catalyst to yield parasorbic acid (PSA). The PSA can then be ring-opened by contacting it with a solid acid catalyst. The reaction conditions of the ring-opening reaction can be controlled to yield sorbic acid and / or pentadiene.
Owner:WISCONSIN ALUMNI RES FOUND
Preparation method of 2, 4-hexadienoic acid polyester
The invention provides a preparation method of 2, 4-hexadienoic acid polyester. The preparation method comprises the following steps of adding 500-650 parts by weight of beta-methyl acrolein and 3-15 parts by weight of titanium dioxide-silicon dioxide-caprolactam composite catalyst into a reaction kettle, stirring, introducing ketene gas at the temperature of 35-50 DEG C for reaction, filtering after the completion of the reaction, and performing negative pressure rectification on a reaction solution to obtain 2, 4-hexadienoic acid polyester. The condensation catalyst used in the method adopts the titanium dioxide-silicon dioxide-caprolactam composite catalyst, so that the conversion rate of beta-methyl acrolein is improved, the yield of the product 2, 4-hexadienoic acid polyester is simultaneously improved, and the waste water amount produced by production is also reduced; by using the method, the single-pass conversion rate of the raw material beta-methyl acrolein can achieve 95%, and the single-pass yield of the 2, 4-hexadienoic acid polyester can be above 90%.
Owner:NANTONG ACETIC ACID CHEM
Environmental protection snow melting agent and preparation method therefor
InactiveCN105349101AStrong ability to complex magnesium ionsLess aggressiveOther chemical processesSodium acetateSodium metasilicate
The invention discloses an environmental protection snow melting agent and a preparation method therefor, and relates to the snow melting agent technology field. The snow melting agent is mainly prepared from magnesium phosphate, urea, carbon black, potassium acetate, sodium acetate, silver nitrate, hexadienoic acid, wheat bran, sodium metasilicate, maltose, sodium peroxide, hexamethylenetetramine, silica-gel powder, DL-411 aluminum acid ester coupling agent, water and antiskid auxiliary agents. The snow melting agent employs anhydrous sodium metasilicate and magnesium phosphate to cooperate with each other, anhydrous sodium metasilicate has a strong magnesium ion complexing capability, through cooperation, the chemical properties are stable, the ice-resistant capability is strong, and the snow melting effect is good. The potassium acetate component is added, and low corrosion to pavements and soil, low toxicity and environmental protection are achieved. The components of the antiskid auxiliary agents, silica gel, maltose and the like protect pavements and have antiskid and sterilization functions.
Owner:TIANJIN JINHAIDA TECH CO LTD
Application of hexadienoic acid in preparation of pig feed additive and pig feed
ActiveCN102008024AFacilitated releaseImprove qualityAnimal feeding stuffAccessory food factorsAnimal scienceBlood insulin
The invention provides application of hexadienoic acid in preparation of pig feed additive and pig feed, which is novel important application of the hexadienoic acid, and can be applied to preparation of the pig feed additive or the pig feed. The pig feed added with the hexadienoic acid is a safe feed, and does not contain substances which are toxic or harmful to growth and health of pigs. Compared with conventional feed additives, the pig feed additive can effectively improve the pork quality while improving the secretion level of blood insulin-like growth factor-I (IGF-I) by the specificityof the pig feed additive and improving the growing performance of the pigs, so that the slaughtering speed can be increased, the grade of meat products can be improved, and the pork products have higher market values. In the application, additive amount of the hexadienoic acid is small, and can be directly added into premix, the adding process is convenient and rapid, and the preparation method is simple without special requirement for equipment, so the hexadienoic acid has quite wide popularization and application prospect.
Owner:沃曼(广东)生物科技有限公司
Preparation method of 2, 4-hexadienoic acid
ActiveCN103601615ADepolymerization yield increasedHigh yieldOxygen-containing compound preparationOrganic compound preparationPolyesterAcetic acid
The invention provides a preparation method of 2, 4-hexadienoic acid. The method sequentially comprises the following steps: with glacial acetic acid as a raw material, pyrolyzing the glacial acetic acid at the high temperature of 700-800 DEG C to obtain ketene; condensing the obtained ketene with beta-methylacrolein to obtain 2, 4-hexadienoic acid polyester; and depolymerizing the obtained 2, 4-hexadienoic acid polyester under the catalysis of a composite solid acid catalyst to obtain a 2, 4-hexadienoic acid crude product, thus obtaining a 2, 4-hexadienoic acid product through aftertreatment. The method has the advantages that the 2, 4-hexadienoic acid polyester is completely hydrolyzed, so that the depolymerization yield of the 2, 4-hexadienoic acid polyester is increased, the single depolymerization yield is up to 90% and the finished product yield is high; the unreacted beta-methylacrolein, a solvent and an ethanol solution can be recycled and no salt-containing wastewater is produced, so that clean production is truly realized.
Owner:NANTONG ACETIC ACID CHEM
Production of 2,4-hexadienoic acid and 1,3-pentadiene from 6-methyl-5,6-dihydro-2-pyrone
ActiveUS8404890B2Organic compound preparationPreparation from carboxylic acid esters/lactonesHexadienoic AcidSolid acid
Described is a method of making sorbic acid, pentadiene, or 3-penten-2-one. The method includes partially hydrogenating 4-hydroxy-6-methyl-2-pyrone (HMP) to yield 5,6-dihydro-4-hydroxy-6-methyl-2H-pyran-2-one (4-DHMMP). Then, if 3-penten-2-one is desired, thermally decomposing the 4-DHMMP to yield 3-penten-2-one. If sorbic acid or pentadiene are desired, the 4-DHMMP is hydrogenated to yield 4-hydroxy-6-methyltetrahydro-2-pyrone (4-HMTHP). The 4-HMTHP is then dehydrated by contacting it with a solid acid catalyst to yield parasorbic acid (PSA). The PSA can then be ring-opened by contacting it with a solid acid catalyst. The reaction conditions of the ring-opening reaction can be controlled to yield sorbic acid and / or pentadiene.
Owner:WISCONSIN ALUMNI RES FOUND
Food preservative and preparation method thereof
InactiveCN108902644ANo harmNo toxicityFood preservationNatural extract food ingredientsHexadienoic AcidMaltitol
The invention discloses a food preservative and a preparation method thereof. The food preservative is prepared from the following components in parts by weight: 20-30 parts of nisin, 5-15 parts of chitosan, 10-15 parts of a lemon extract, 6-10 parts of sodium hexametaphosphate, 10-16 parts of lysozyme, 5-12 parts of sodium alginate, 2-6 parts of 2,4-hexadienoic acid, 2-4 parts of tea polyphenols,3-7 parts of maltitol and 5-10 parts of a lotus leaf extract. The food preservative and the preparation method thereof provided by the invention have the following beneficial effects: the food preservative has wide and easily-available sources of component materials, no harm to the human body, no toxicity, high safety factors, greenness and environment friendliness, can effectively inhibit the growth of mold and the like, has good preservation effects, is simple to prepare and has a wide range of application, low cost and broad application prospects.
Owner:苏州汉德瑞生物工程有限公司
Preparation method of cable material for rare earth based precision equipment
InactiveCN108559244ARaw materials are easy to getSimple processPlastic/resin/waxes insulatorsMANGANESE ACETATEHexadienoic Acid
The invention discloses a preparation method of a cable material for rare earth based precision equipment. The preparation method comprises the following steps: preparing an activated adhesive from vinyltriethoxysilane, polymethylphenyl siloxane fluid, sodium metabisulfite, cyclosiloxane fatty ester, dimethyl phthalate, manganese acetate, sodium chromate, hexamethylenetetramine and the like as rawmaterials, and then, enabling the activated adhesive and raw materials including rare earth, ethyl methacrylate, polycarbonate, polysulfone, polymethyl methacrylate, polyalkylene glycol, rosin resin,barium ferrite, azobisisobutyronitrile, 6-methoxy-2-naphthaldehyde, hexadienoic acid, diethylene triaminepentaacetic acid, triethyl phosphate and the like to be respectively subjected to high-temperature internal mixing, magnetic stirring, mold casting, static cooling, water-cooled drawing, solid solution and aging and the like, thereby obtaining the cable material for the rare earth based precision equipment. The prepared cable material for the rare earth based precision equipment has good electrochemical properties and material stability and can be suitable for multiple precision equipment.
Owner:苏州耐思特塑胶有限公司
Alkali-resistant color fixing agent and preparation method thereof
InactiveCN105648803AImprove color fixationSimple preparation processDyeing processBenzoic acidHexadienoic Acid
The invention discloses an alkali-resistant color fixing agent. The alkali-resistant color fixing agent is prepared from, by weight, 10-16 parts of butyl methacrylate, 6-10 parts of 2,5-dichlorobenzoic acid, 2-8 parts of 2,4-hexadienoic acid, 9-15 parts of triethylene tetramine, 12-18 parts of 2-amino propanol, 8-14 parts of pinacolone menthanone, 12-20 parts of monopotassium phosphate, 20-26 parts of epibromohydrin, 15-24 parts of 4,5-diamido-2-nitrophenetol, 7-15 parts of 3,4-dihydroxyl benzedrine and 80-130 parts of distilled water. The alkali-resistant color fixing agent can adapt to an alkali operation environment and is high in dry rubbing fastness, wet rubbing fastness and soaping fastness.
Owner:WUJIANG ZEWANG TEXTILE CO LTD
2, 4-Hexadienoic acid, its alkali salts and/or derivatives for preventing oxidative corrosion of metals
Compositions and methods are disclosed for preventing the oxidative corrosion of metal surfaces by exposing a metal surface to an anti-corrosion agent characterized as 2,4-trans, trans-hexadienoic acid (2,4-HDA), its alkali salt identified as potassium sorbate (KHDA), or other derivatives that conserve or embody the 2,4-trans, trans-hexadiene-type moiety present in their molecular structures as an active anti-corrosion agent (ACA), in combination with a material capable of forming a moisture retentive barrier over the metal surface. The compositions and methods of the invention provide a practical, non-toxic way of ensuring anti-corrosion protection for metals, or devices containing exposed metals, stored or operated in water or in the presence of water vapor. Exemplary, non-exhaustive uses of the invention include employing the composition as a lubricant for the surface of a metal or as a pump oil or brake fluid; using the composition as an undercoating for painting, electro-plating or electro-polishing procedures; and providing a protective coating for any metal or metal-containing machine or device, from automotive assembly plant metal press machines to electronic circuit boards.
Owner:INTELLECTUAL CONCEPTS
Medium trace element fertilizer for adjusting alkaline soil and preparation method thereof
PendingCN113816800ABroaden applicationEasy to useMagnesium fertilisersGranulation in rotating dishes/pansOXALIC ACID DIHYDRATEButanedioic acid
The invention discloses a medium trace element fertilizer for adjusting alkaline soil and a preparation method thereof. The medium trace element fertilizer comprises the following components in percentage by mass: 40-60% of medium trace element-containing substances, 30-50% of acidic substances and 1-10% of auxiliaries. The medium trace element is a mixture containing two or more of calcium, magnesium, silicon, sulfur, iron, manganese, copper, zinc, boron and molybdenum; the acidic substance is one or a mixture of more than two of urea sulfate, citric acid, methylene succinic acid, maleic acid, oxalic acid, acetic acid and hexadienoic acid; the auxiliary is one or a mixture of more than two of xanthan gum, guar gum, biochemical fulvic acid, molasses, chitosan oligosaccharide, ethylene glycol, polyethylene glycol and ethanolamine. On one hand, trace elements in soil are supplemented, on the other hand, the PH value of the soil is improved, and absorption of crops to the trace elements is promoted.
Owner:STANLEY AGRI GRP CO LTD
Stretch-proof biodegradable plastic and preparation method thereof
The invention discloses a stretch-proof biodegradable plastic. The plastic is prepared from the following raw materials in parts by weight: 15-20 parts of acrylic resin, 30-40 parts of canna starch, 25-30 parts of bran powder, 55-65 parts of polytetrafluoroethylene, 20-25 parts of polytetramethylene ether glycol, 10-15 parts of dimethoxymethane, 10-15 parts of hexadienoic acid, 5-10 parts of zinc stearate, 5-8 parts of hyaluronic acid, 2-4 parts of triethanolamine, 1-2 parts of plasticizer and 1-3 parts of antioxidant. The plastic product prepared by the method has excellent stretching performance and can be easily degraded. Furthermore, the invention further discloses a corresponding preparation method.
Owner:SOUTH CHINA REBORN RESOURCES ZHONGSHAN
Degradable foaming sole
The invention provides a degradable foaming sole, which is prepared from the following raw materials in percentage by weight: 40 to 50 percent of EVA, 0.1 to 1 percent of crosslinking auxiliary agents, 0.1 to 3 percent of corn flour, 0.1 to 3 percent of lime cream, 0.1 to 3 percent of hexadienoic acid and 40 to 60 percent of low-melting point polyester slices. The degradable foam sole has the characteristics that the weight is light; wear-resistant performance and anti-slip effects are achieved; the dimension is stable.
Owner:佛山市盈智轩科技有限公司
Production method for antibacterial agent potassium hexadienoic acid
InactiveCN108238917AReduction of intermediate links in the reactionLow reaction temperatureOrganic compound preparationCarboxylic acid salt preparationActivated carbonHexadienoic Acid
The invention discloses a production method for antibacterial agent potassium hexadienoic acid. The method comprises the following main steps: adding sorbic acid into a reaction kettle, adding water with the weight of 75-80% of the weight of the sorbic acid, adding a potassium hydroxide solution with the mass fraction of 30-36% dropwise at the temperature of 55-60 DEG C until the pH of a reactionsolution is 8.3-8.6, and performing a reaction for 70-90min; adding a certain amount of activated carbon, performing vacuum filtration, performing reduced-pressure distillation on the filtrate at thetemperature of 50-56 DEG C for 1-2h, performing heating to the temperature of 60-64 DEG C, and discharging a material; and performing centrifugal dewatering to obtain a crystal, recovering a mother liquor, and finally performing drying at the temperature of 115-120 DEG C for 2-3h, so as to obtain the product.
Owner:CHENGDU BO LUO KE TECH CO LTD
Compositions and methods for enhancing opioid receptor binding by opioid hexadienoic acid esters and optionally substituted hexadienoic acid esters
PendingCN114828961AQuality careImprove bindingNervous disorderOrganic chemistryOpioid antagonistOpioidergic
The present invention relates to opioid-derived compositions and antagonists thereof for use in the field of opioid receptor modulation related therapies. The invention discloses a 3-hexadienoic acid ester modifier of an opioid drug. The 3-hexadienoic acid ester modifier is used for improving the combination of the opioid drug and an opioid receptor during oral administration. A 3-hexadienoate modifier of nalbuphine or a pharmaceutically acceptable salt thereof is formulated for improving the quality of pain management during intravenous, intranasal, transdermal, sublingual, rectal, local, intramuscular, subcutaneous or inhalation administration. The 3-hexadienoic acid ester modifier of the opioid antagonist is prepared and is used for improving the inhibition effect on an opioid receptor during oral administration. Also formulated is a 3-hexadienoic acid ester modifier of naloxone or a pharmaceutically acceptable salt thereof for use in improving sobering quality during intravenous, intranasal, transdermal, sublingual, rectum, local, intramuscular, subcutaneous or inhalation administration.
Owner:KAPPA PHARMA LLC
Composition comprising benzyl alcohol derivatives and other antimicrobial active compounds
The invention relates to a composition comprising benzyl alcohol derivatives and other antimicrobial active compounds. The composition includes: (a) one, two or more compounds, which are selected from benzyl alcohol derivatives represented in the formula (I), wherein the substituent groups R1, R2 and R3 are defined as the claim 1; (b) one, two or more compounds selected as the follows: (i) 1,2-alkyldiol having 3-14 carbon atoms and having or not having a branched chain; (ii) benzoic acid, as well as an ester and a salt thereof; (iii) 4-hydroxybenzoic acid, as well as an ester and a salt thereof; (iv) 2,4-hexadienoic acid and a salt thereof; (v) 2-phenoxyethanol; (vi) 3-iodo-2-propynyl butylcarbamate; (vii) 3-(4-chlorophenoxy)-1,2-propane-1,2-diol; (viii) urea and a derivative thereof; (ix) 1,3-bis(hydroxymethyl)-5,5-dimethyl-2,4-imidazolidinedione; (x) 3-(2-ethylhexyloxy)-1,2-propylene glycol; and (xi) isothiazolinone and a mixture thereof.
Owner:SYMRISE GMBH & CO KG
Preparation method of 2, 6-dioxabicyclo-(3.3.0)-octane-3,7-dione
The invention discloses a preparation method of 2,6-dioxabicyclo-(3.3.0)-octane-3,7-dione, and belongs to the technical field of organic synthesis. The preparation method comprises the following steps: taking hexadienoic acid as a raw material, carrying out addition reaction with bromine under the action of a catalyst to obtain 3,4-dibromoadipic acid, then reacting with a deprotonation reagent toobtain dicarboxylate, and then carrying out heating reaction to obtain 2,6-dioxabicyclo(3.3.0)-octane-3,7-dione. The method has the advantages of simple and efficient post-treatment operation of eachstep, simple and easily available raw materials, short reaction steps and high product purity, and meets the requirements of large-scale production.
Owner:浦拉司科技(上海)有限责任公司
Ester-based composite material
The invention discloses an ester-based composite material which is prepared from the following raw materials by weight percent: 40 to 50% of polypropylene carbonate, 0.1 to 1% of gamma-octanoic lactone, 0.1 to 3% of dioctyl adipate, 0.1 to 3% of ethyl methacrylate, 0.1 to 3% of hexadienoic acid and 40 to 60% of glyceryl triacetate. According to the ester-based composite material disclosed by the invention, varieties of ester substances are mixed to replace an original fiber reinforcing material; thus, overall performance of the composite material is improved, and the material has the advantages of good bending strength and heat distortion temperature.
Owner:苏建
Latex sponge
The invention discloses a latex sponge. The latex sponge is composed of the following substances in part by weight in a preparation process: 100 parts of hexadienoic acid, 35-75 parts of polyvinyl alcohol, 0.5-1.5 parts of nano-silica, 0.2-0.6 part of polystyrene resin, 1.2-1.3 parts of silicone oil and 1.5-3.5 parts of foaming agent water. Through adjustment for the raw materials and formula of the product, the latex sponge with no rubber pungent odor is produced by using the processing technology of a slow rebound sponge. The essence of the latex sponge is the sponge but has the characteristics of latex and is superior to a latex and is free of pungent odor of the latex; the latex sponge is soft, odorless and highly comfortable, can meet the needs of people for the sponge and the latex,and can completely replace the sponge and the latex. The foaming density of the latex sponge disclosed by the invention can reach about 40 D, a large amount of raw materials are saved and the densityof the finished product latex is at least 70 D.
Owner:洪诗锐
Method for modifying polarity of elastomer resin
Owner:FUJIAN NORMAL UNIV
Alloy material for manufacturing polyethylene pipeline for water supply and preparation method
The invention discloses an alloy material of a polyethylene pipeline for water supply and a preparation method. The alloy material comprises the following components in percentage: 64.56%-63.22% of PE100s, 32.28%-31.61% of PE100RC, 0.46%-0.95% of polyoxyethylene [CH2-CH2-O]-n, 0.46%-0.57% of 2,4-hexadienoic acid C6-H8-O2, 0.33%-0.51% of 2-(2-hydroxyl-3-tert-butyl-5-methyl phenyl)-5-chlorobenzene triazole and 1.94%-3.17% of maleic anhydride C4H2O. According to the invention, optimized material configuration, matched manufacturing process and deep processing value-added treatment are carried out according to the technical index requirements and use conditions of the pipe, so that the physical and chemical properties, yield and long-term stability of the pipe are improved.
Owner:JIANGXI TIANFENG CONSTR GRP PLASTIC STEELTECH
Application of hexadienoic acid in preparation of pig feed additive for improving pig quality
ActiveCN102008024BFacilitated releaseImprove qualityAnimal feeding stuffAccessory food factorsAnimal scienceBlood insulin
The invention provides application of hexadienoic acid in preparation of pig feed additive and pig feed, which is novel important application of the hexadienoic acid, and can be applied to preparation of the pig feed additive or the pig feed. The pig feed added with the hexadienoic acid is a safe feed, and does not contain substances which are toxic or harmful to growth and health of pigs. Compared with conventional feed additives, the pig feed additive can effectively improve the pork quality while improving the secretion level of blood insulin-like growth factor-I (IGF-I) by the specificity of the pig feed additive and improving the growing performance of the pigs, so that the slaughtering speed can be increased, the grade of meat products can be improved, and the pork products have higher market values. In the application, additive amount of the hexadienoic acid is small, and can be directly added into premix, the adding process is convenient and rapid, and the preparation method is simple without special requirement for equipment, so the hexadienoic acid has quite wide popularization and application prospect.
Owner:沃曼(广东)生物科技有限公司
Latex sponge
The invention discloses latex sponge which is composed of the following substances in parts by weight according to the preparation process: 100 parts of hexadienoic acid, 35-75 parts of polyvinyl alcohol, 0.5-1.5 parts of nanosilicon dioxide, 0.2-0.6 part of polystyrene resin, 1.2-1.3 parts of silicon oil and 1.5-3.5 parts of foaming agent water. Due to adjustment on product raw materials and formulae, the latex sponge which is free of rubber pungent smell is produced by using a slow springback sponge processing process, the latex sponge is sponge intrinsically, but has the properties of latex, in addition is prior to latex and has no pungent smell of latex; and the latex sponge is soft, smellless and good in comfort, double requirements of sponge and latex can be met simultaneously, and sponge and latex can be completely replaced. The foaming density of the latex sponge is about 40D, a great amount of raw materials are saved, and the density of finished product latex is at least 70D.
Owner:苏建
Production apparatus for antibacterial drug 2,4-hexadienoic acid
InactiveCN108238928AReduction of intermediate links in the reactionLow reaction temperatureCarboxylic preparation by ozone oxidationBiochemical engineeringHexadienoic Acid
The invention provides a production apparatus for the antibacterial drug 2,4-hexadienoic acid. The production apparatus mainly comprises a storage tank 1 (F101), a storage tank 2 (F102), a storage tank 3 (F103), a storage tank 4 (F104), a condenser (C101) and a reaction vessel (D101), wherein the storage tank 1 (F101) and the storage tank 2 (F102) are connected with the reaction vessel (D101) in parallel; the storage tank 3 (F103) and the storage tank 4 (F104) are connected with the reaction vessel (D101) in parallel; the condenser (C101) is connected with the reaction vessel (D101); the reaction vessel (D101) has a nominal volume of 300 to 350 L; and the barrel of the storage tank 1 (F101) has a wall thickness of 6 to 7 mm.
Owner:CHENGDU BO LUO KE TECH CO LTD
A kind of preparation method of gamma-substituted hexadienoic acid
ActiveCN112110812BAvoid techno-economic disadvantagesObvious cost advantageOrganic compound preparationCarboxylic compound separation/purificationFuranPtru catalyst
The invention relates to a preparation method of γ-substituted hexadienoic acid, which is characterized in that: (1) at 10-40°C, add a solvent, a catalyst, and a catalyst assistant to a reaction vessel, stir, and introduce oxygen, and add 1-( 2-furyl)-1-alkylcarbinol, control catalyst: catalytic promoter: the molar ratio of 1-(2-furyl)-1-alkylcarbinol is 0.0001~5:0.0001~3:100, and the reaction temperature is 0~200℃, pressure 0.1~20MPa, reaction 1~74h; solvent is a mixture of water phase and organic phase with a volume ratio of 1:0.01~3, the water phase is a phosphate acid solution, and the organic phase is a reaction inert solvent , the catalyst is a palladium compound, and the catalytic assistant is an amine or a phosphine compound; (2) cooling the reaction vessel to room temperature, adding an organic solvent for extraction, and performing vacuum distillation on the organic phase. The invention has the advantages of avoiding technical and economic disadvantages in the existing synthetic route, simplifying the technological process, reducing consumption and emission, reducing energy consumption and cost, and being suitable for industrialized production with expanded production capacity.
Owner:ANHUI JINGHE IND
Biological mould inhibitor harmless to human body
InactiveCN107198084AChange in permeabilityInhibition exclusionFood preservationFood ingredient for microbe protectionDehydroacetic acidMetabolite
The invention discloses a biological mould inhibitor harmless to a human body. The biological mould inhibitor harmless to the human body is prepared from the following components in parts by weight: 10 to 14 parts of cresol, 4 to 9 parts of dehydroacetic acid, 2 to 7 parts of phenethyl alcohol, 9 to 13 parts of chlorhexidine iodine, 2 to 6 parts of hexadecylpyridinium chloride, 1 to 6 parts of cassia oil, 5 to 10 parts of hexadienoic acid and 3 to 11 parts of propyl p-hydroxybenzoate. Through the way, the biological mould inhibitor harmless to the human body, disclosed by the invention, is capable of changing the osmosis of a cell serous membrane, inhibiting inactivation of cells caused by elimination of enzymes and metabolites in the cells, is reasonable in use and harmless to the human body and can be degraded into normal components, and the use is not affected.
Owner:TAICANG ROODEE BIOTECH RES INST
A kind of preparation method of 2,4-hexadienoic acid
ActiveCN103601615BHigh yieldCompletely hydrolyzedOxygen-containing compound preparationOrganic compound preparationPolyesterDepolymerization
The invention provides a preparation method of 2,4-hexadienoic acid, which comprises the following steps in sequence: using glacial acetic acid as a raw material, obtaining vinyl ketone through high-temperature cracking at 700-800°C; condensing the obtained vinyl ketone with β-methacrolein to obtain 2 , 4-hexadienoic acid polyester; depolymerize the obtained 2,4-hexadienoic acid polyester under the catalysis of a composite solid acid catalyst to obtain crude 2,4-hexadienoic acid, and obtain the product 2,4-hexadienoic acid after post-processing. The method completely hydrolyzes 2,4-hexadienoic acid polyester, improves the depolymerization yield of 2,4-hexadienoic acid polyester, and the single depolymerization yield reaches 90%, and the finished product yield is high, and the unreacted β-methylpropene Aldehyde, solvent and ethanol solution can be recycled, no salty waste water is generated, and clean production is truly realized.
Owner:NANTONG ACETIC ACID CHEM
Latex sponge
The invention discloses a latex sponge. The latex sponge comprises the following raw materials in parts by weight: 100 parts of hexadienoic acid, 35-75 parts of polyvinyl alcohol, 0.5-1.5 part of nanometer silicon dioxide, 0.2-0.6 part of a polystyrene resin, 1.2-1.3 part of a silicon oil, 1.5-3.5 parts of water as a foaming agent. The latex sponge without rubber irritation smell is produced by the processing technology of slow rebound sponge through adjusting the raw materials and formula of the product, the sponge is essentially a sponge, but it has the characteristics of latex, and is superior to latex, and has no irritation smell of latex; the latex sponge is soft, odorless and comfortable, which can meet the parallel demand of people for sponge and latex, and can completely replace sponge and latex. As that foam density of the latex sponge of the invention can be about 40D, a large amount of raw materials are saved, and the density of the finished latex is at least 70D.
Owner:翁晓霖
A stretch-resistant degradable plastic and its preparation method
The invention discloses a stretch-proof biodegradable plastic. The plastic is prepared from the following raw materials in parts by weight: 15-20 parts of acrylic resin, 30-40 parts of canna starch, 25-30 parts of bran powder, 55-65 parts of polytetrafluoroethylene, 20-25 parts of polytetramethylene ether glycol, 10-15 parts of dimethoxymethane, 10-15 parts of hexadienoic acid, 5-10 parts of zinc stearate, 5-8 parts of hyaluronic acid, 2-4 parts of triethanolamine, 1-2 parts of plasticizer and 1-3 parts of antioxidant. The plastic product prepared by the method has excellent stretching performance and can be easily degraded. Furthermore, the invention further discloses a corresponding preparation method.
Owner:SOUTH CHINA REBORN RESOURCES ZHONGSHAN
Alkyl benzoic acid resin manufacturing method
The invention relates to an alkyl benzoic acid resin manufacturing method, mainly comprising the following steps: material preparation: dividing the raw materials into two systems: category A and category B, wherein the category A comprises benzene olefin, and R1, R2 and R3 bases of the olefin are alkenes or alkanes with 1-5 carbon atoms, the category B comprises an acids system, comprising propenoic acid, trans-butenedioic acid, cis-butenedioicacid, maleic anhydride, trans-2-butenoic acid, cinnamic acid, trans,trans-2,4-hexadienoic acid and aconitic acid, and taking one or more than one of the components as raw materials; heating: adding the raw materials in a reacting furnace for being heated, wherein the temperature can reach 10-200 DEG C, and the pressure of a reactor is one atmospheric pressure or more than one atmospheric pressure; polymerization: carrying out polymerization reaction of the raw materials in the reactor; and formation: granulating the polymerized resin into particles or sheets by a granulator, or directly cooling the resin into blocks.
Owner:YUANG HONG CORP
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