45 results about "1-Pentanol" patented technology

An exemplary printable composition comprises a liquid or gel suspension of a plurality of metallic nanofibers; a first solvent; and a viscosity modifier, resin, or binder. In various embodiments, the metallic nanofibers are between about 10 microns to about 100 microns in length, are between about 10 nm to about 120 nm in diameter, and are typically functionalized with a coating or partial coating of polyvinyl pyrrolidone or a similar compound. An exemplary metallic nanofiber ink which can be printed to produce a substantially transparent conductor comprises a plurality of metallic nanofibers; one or more solvents such as 1-butanol, ethanol, 1-pentanol, n-methylpyrrolidone, cyclohexanone, cyclopentanone, 1-hexanol, acetic acid, cyclohexanol, or mixtures thereof; and a viscosity modifier, resin, or binder such as polyvinyl pyrrolidone or a polyimide, for example.

This invention relates to a method for separating and purifying 1,3-dihydroxypropane from microbial fermentation liquor, comprising: after the sterilization and dehydration of fermentation liquor, add in 1-pentanol or isoamyl alcohol, n-butanol and n-hexanol, then remove the sediment in the fermentation liquor by filtration or settlement followed by washing; add in appropriate amount of glycerol or 1,4-butylene glycol to the supernatant to recover 1-pentanol or isoamyl alcohol, n-butanol and n-hexanol, by decompression or normal pressure distillation, so as to produce high-purity 1,3-dihydroxypropane, with more than 95% recovering rate. This invention is characterized of simple separation process, mature technique, low separation cost, and little additional introduced agent with easy recovery. Besides, the crystallization sediment in the fermentation liquor can be efficiently separated, which overcomes the problems of foaming, agglomerating and pipe clogging during distillation, so as to realize continuous operation.

The invention discloses an ethylene glycol bi-sulpho succinic acid bi(2-methyl amyl) artesunate and a production method thereof. The product is prepared by reacting maleic anhydride with 2-methyl-1-amyl alcohol to form a monoesterfication product, reacting the monoesterfication output with sodium sulfite to form a sulphonated product, and then reacting the sulphonated product with ethylene glycol. The product has good performance and is simple to synthesize.

Disclosed herein is an aqueous coating material comprising (A) at least one polyurethane which is ionically stabilized, nonionically stabilized, or a combination thereof, and which is saturated, unsaturated, grafted with olefinically unsaturated compounds, or a combination thereof, (B) at least one wetting agent or dispersant; and (C) at least one organic solvent selected from the group consisting of dimethyl sulfoxide, sulfolane, 2-methyl-1-butanol, 3-methyl-1-butanol, 2-methyl-1-pentanol, hexyl glycol, 1,6-hexanediol, diethylene glycol, triethylene glycol, glycerol, solutions of trimethylolpropane, solutions of pentaerythritol, solutions of sorbitol, reactive polyether polyols with a number-average molecular weight of 110 to 6000 daltons and a hydroxyl number of 25 to 1000 mg KOH/g, propylene glycol monobutyl ether, dipropylene glycol dimethyl ether, glycerol ethoxylate, ethyl 3-ethoxypropionate, gamma-butyrolactone, N-(2-hydroxyethyl)piperidine, N-methylmorpholine, N-(2-hydroxyethyl)morpholine, N-acetylmorpholine, N-cyclohexylpyrrolidone, N-octyl-2-pyrrolidone, and a combination thereof. Also disclosed is a process for preparing the foregoing aqueous coating material.

Said invention discloses ultraviolet spectrometry determining styrene micro emulsion liquid conversion rate method in order to composing styrene, 1-pentanol, SDS and H2 O reaction system. Said cinnamic initial concentration C0 is 0.4 mol L-1.2mol L-1,Polymerization temperature as 20-60 degree centigrade, sampling in plurality of time quantum in process of ultrasound trigering micro emulsion liquid polyreaction, to proceed precipitation pretreatment using 95 per cent ethanol as precipitant, then taking supernatant, using 95 per cent ethanol dilution Cinnamic concentration as 9 X10-6 mol L-7X10-6 mol L, adopting ultraviolet spectrophotometer determining said rare faction cinnamic absorbance in 200 nm-300 nm position, through absorbance-styrene concentration relationship chart and extension rate calculating polymeric system styrene concentration C, according to x ú¢ c 0- 0- c ) / c 0 ] * 100 % calculating cinnamic conversion rate. Said invented method is simple, easy operation, and high sensitivity.

An exemplary printable composition comprises a liquid or gel suspension of a plurality of metallic nanofibers or nanowires; a first solvent; and a viscosity modifier, resin, or binder. In various embodiments, the metallic nanofibers are between about 10 microns to about 100 microns in length, are between about 10 nm to about 120 nm in diameter, and are typically functionalized with a coating or partial coating of polyvinyl pyrrolidone or a similar compound. An exemplary metallic nanofiber ink which can be printed to produce a substantially transparent conductor comprises a plurality of metallic nanofibers; one or more solvents such as 1-butanol, ethanol, 1-pentanol, n-methylpyrrolidone, cyclohexanone, cyclopentanone, 1-hexanol, acetic acid, cyclohexanol, or mixtures thereof; and a viscosity modifier, resin, or binder such as polyvinyl pyrrolidone or a polyimide, for example.

The invention discloses a method for separating cyclopentane and neohexane by using an extractive rectification technology, which belongs to the field of petrochemical industry. A solvent used in the extractive rectification technology comprises the following components by mass part: 1.5-9 parts of a main solvent and 1 part of an auxiliary solvent, wherein the main solvent is N,N-dimethylformamide and/or N-formyl morpholine, and the auxiliary solvent is at least one of 1-butanol, 2-butanol, 1-amyl alcohol, 2-amyl alcohol, cyclopentanol, cyclohexanol, ethylene glycol, propylene glycol, methyl acetate, ethyl acetate, and phenol. The provided method has excellent separating effect for cyclopentane and neohexane as well as has advantage of low energy consumption.

The invention discloses a preparation method of pentafluoropentanol. The preparation method comprises the following steps: firstly, synthetic reaction: carrying out a reaction between propenol and pentafluoroethyliodide under the action of a free radical initiator to generate 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol; secondly, hydrogenated dehalogenation reaction: carrying out the hydrogenated dehalogenation reaction under the action of the 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol to generate a pentafluoropentanol product. The invention provides the preparation method of the pentafluoropentanol. The pentafluoroethyliodide and the propenol serving the raw material undergo free radical reaction to generate the 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol, and the 4,4,5,5,5-pentafluoro-2-iodo-1-pentanol undergoes dehalogenation reaction under the action of a reducing agent to generate the pentafluoropentanol. The method is high in reaction yield and easy for industrial production; in addition, the purity of the product is higher than 99 percent.

The invention relates to a preparation method of urushiol-loading pH responsive amphiphilic copolymer micelle. The preparation method comprises the following steps: firstly, dissolving a certain amount of mPEG, hydrophobic amine monomer, 5-amino-1-pentanol and 1,4-butanediol diacrylate in DMSO to prepare a reaction solution with a certain concentration, performing polyreaction for 20-48h, then adding a certain amount of 1,3-pentanediamine, and continuing the reaction for 24h to synthesize polyethylene glycol-poly-beta-amino ester amphiphilic copolymer (mPEG-PBAE); and then taking and dissolving a certain amount of mPEG-PBAE and urushiol in DMF, performing uniform ultrasonic mixing, and performing dialyzing, centrifuging and filtering to obtain the urushiol-loading pH responsive amphiphiliccopolymer micelle. The drug-loading micelle has an average particle diameter of 140-160nm, good stability, obvious pH responsive drug-release property, good biocompatibility, and good targeting anti-tumor activity, can be applied to clinical targeting anti-tumor drugs, has very high added value, and can become a new technique for clinically developing urushiol targeting anti-tumor drugs.

A composition containing undecane, hexanal, 1-pentanol, decane, and 2-pentylfuran is an effective attractant for adult female Indian meal moths (Plodia interpunctella). The composition may be used alone or with a carrier component. The composition may be used in combination with any insect trapping means known in the art, as required for a specific application.

Furfural is produced through hydrolysis of the hemi-cellulose in corn stover. Furfural may also be produced from other biomass. The direct conversion of furfural to mono-alcohols which can be blended with gasoline is an attractive chemical process for providing biomass into the liquid fuel supply. Examples of such alcohols include 1-butanol, 1-pentanol, 2-pentanol and tetrahydrofurfuryl alcohol. Preferred alcohols include C-4 and C-5 mono-alcohols that have suitable blending properties.

Belonging to the field of chemical medicine, the invention in particular relates to a compound Dahpe, a preparation method and application thereof. The molecular structural formula of the compound Dahpe is shown as formula I in the specification. The preparation method of the compound Dahpe includes the steps of: acquiring the following three raw materials: 5-heptyloxy-1-pentanol, 2-chloropropionyl chloride and diethylamine alcohol; subjecting the 5-heptyloxy-1-pentanol and 2-chloropropionyl chloride to acylation reaction to obtain an intermediate 2-chloropropionic acid-5-heptyloxy-1-amyl ester; and subjecting the intermediate 2-chloropropionic acid-5-heptyloxy-1-amyl ester and the diethylamine alcohol to dechlorination amination reaction so as to obtain the compound Dahpe. The compound Dahpe can be applied to transdermal delivery preparations of cardiovascular and cerebrovascular drugs, significantly promote transdermal absorption of cardiovascular and cerebrovascular drugs, and enhance the efficacy of the drugs, and the transdermal penetration promoting activity is significantly superior to the prior art.

The invention provides a hair treatment composition such as a shampoo or conditioner suitable for topical application to hair for the repair and prevention of damage comprising a hydroxy compound having the following parameters: i) electrotopological state indice of OH S_sOH<9.26 (ii) multigraph information content indice BIC>0.8 (iii) electrotopological state indice of CH3 S_sCH3<6.26 and (iv) a molecular weight greater than 90 wherein the composition does not dye the hair. Preferred hydroxy compounds are 2-methyl-2-hexanol, 2-methyl-2-heptanol, 2-methyl-3-heptanol, 2-methyl-2-pentanol, 2-methyl-3-hexanol, 3-methyl-2-pentanol, 2-methyl-1-pentanol.