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121 results about "1,3-Butanediol" patented technology

1,3-Butanediol is an organic compound with the formula HOCH₂CH₂CH(OH)CH₃. It is a chiral diol. The compound is a colorless, water-soluble liquid. It has no large scale uses. It is one of four stable structural isomers of butanediol.

Preparation method of 1, 3-butylene glycol

The invention provides a preparation method of 1, 3-butylene glycol. The preparation method comprises following steps: A, acetaldehyde is introduced into a fixed bed reactor, under the effect of a supported type solid basic catalyst, aldol condensation reaction is carried out so as to obtain 3-hydroxybutyraldehyde; and B, 3-hydroxybutyraldehyde is subjected to continuous hydrogenation reaction inthe fixed bed reactor so as to obtain 1, 3-butylene glycol. According to the preparation method, the fixed bed reactor is adopted, at the same time, the supported type solid basic catalyst is adoptedto replace a conventional liquid alkali (such as sodium hydroxide) catalysts, and in the step of hydrogenation reduction, a supported nickel hydrogenation catalyst is adopted. The preparation method is capable of solving problems in the prior art product quality is poor, product yield is low, technology process is complex, and a large amount of waste water and waste residue is generated; aldol condensation quenching step is avoided; side reactions are reduced; relatively high reaction conversion rate and yield are achieved; no neutralizing or desalting process is needed in reaction process; and great improvement of traditional 1, 3-butylene glycol preparation technology is realized.
Owner:DONGYING HI TECH SPRING CHEM IND

Electronic cigarette liquid containing tea extracts and preparation method of electronic cigarette liquid containing tea extracts

The invention discloses an electronic cigarette liquid containing tea extracts. The electronic cigarette liquid comprises, by weight, 10.0%-20.0% of polyethylene glycol, 5.0%-10.0% of glycerol, 2.0%-10.0% of deionized water, 1.0%-5.0% of Yunnan Hongda tobacco leaf water extracts, 1.0%-5.0% of Zimbabwe tobacco leaf water extracts, 0%-5.0% of nicotine, 5.0%-15.0% of tea extracts, 2.0%-5.0% of tobacco flavors and the balanced 1,3-butanediol. The invention further discloses a method for preparing the electronic cigarette liquid containing the tea extracts. According to the electronic cigarette liquid and the preparation method, as the tea extracts are added to the electronic cigarette liquid, the cigarette smoking feelings and the harmony can be promoted through tea perfumes, and the harmfulness of smoking can be reduced.
Owner:CHINA TOBACCO YUNNAN IND

Preparation method of 1, 3-butylene glycol

The invention provides a preparation method of 1, 3-butylene glycol. The preparation method comprises following steps: A, acetaldehyde is introduced into a microchannel reactor, under the effect of abasic ionic liquid catalyst, aldol reaction is carried out so as to obtain 3-hydroxybutyraldehyde; and B, 3-hydroxybutyraldehyde is subjected to continuous hydrogenation reaction in a fixed bed reactor so as to obtain 1, 3-butylene glycol. According to the preparation method, the traditional kettle type reaction technology is improved; the microchannel reactor is adopted, at the same time, the basic ionic liquid catalyst is adopted to replace conventional liquid alkali (such as sodium hydroxide) catalysts, and in the step of hydrogenation reduction, a supported nickel hydrogenation catalyst isadopted, and hydrogenation reduction is carried out in the fixed bed reactor. The preparation method is capable of solving problems in the prior art product quality is poor, product yield is low, andtechnology process is complex; relatively high reaction conversion rate and yield are achieved; no neutralizing or desalting process is needed in reaction process; and great improvement of traditional 1, 3-butylene glycol preparation technology is realized. The prepared 1, 3-butylene glycol is colorless and smelless, is high in purity, and is capable of satisfying application requirements of highgrade industries such as cosmetic.
Owner:DONGYING HI TECH SPRING CHEM IND

Curable, resealable, swellable, reactive sealant composition for zonal isolation and well integrity

The invention relates to a curable sealant composition broadly comprising a resealable, swellable, reactive sealant and free radical initiator; said resealable, swellable reactive sealant comprises monofunctional monomer(s), multifunctional monomer(s), reactive polymer such as unsaturated styrenic block copolymer, swellable additive, and optional components. The monofunctional monomer is a vinyl ester derivative of versatic acid with C9-C12 carbon atoms, or monoacrylate, monomethacrylate, monoacrylamide, or monomethacrylamide. The multifunctional monomer are di-, tri-, tetra-, and / or penta-functional monomers with vinyl, acrylate, methacrylate, acrylamide, or methacrylamide functionality, such as tricyclodecane dimethanol diacrylate, trimethylolpropane trimethacrylate, 1,3-butylene glycol dimethacrylate or a mixture thereof. The reactive unsaturated polymer is a styrenic block copolymer such as SBS, SIS, S-I / B-S, I-SEBS-I, and mixtures of two or more of these. The swellable additive is selected from saturated block copolymers such as SEBS, SEPS, SEEPS, and I-SEBS-I, or a mixture of these. Free radical initiators are preferably peroxides, although others are acceptable.
Owner:KRATON POLYMERS US LLC

Preparation method of graphene-like carbon nitride photocatalytic material

The invention relates to a preparation method of a graphene-like carbon nitride photocatalyst, belonging to the technical field of preparation methods of photocatalytic materials. The method comprises the following steps of: (1) dispersing graphite type carbon nitride in 1, 3-butanediol for performing ultrasonic treatment; (2) performing centrifugal treatment on an obtained suspension to remove a precursor; and (3) evaporating the suspension obtained by centrifugation till dryness so as to obtain a solid, namely the graphene-like carbon nitride photocatalyst. Ultra-thin type graphene-like carbon nitride nano-sheets prepared by utilizing the method disclosed by the invention has good photocatalytic property and photocurrent response, and the graphene-like carbon nitride nano-sheets simultaneously show stronger adsorption capacity. The preparation method provided by the invention has the advantages of low price of raw materials, simple process and mild reaction; and furthermore, the solvent raw materials can be industrially recycled, so that the whole synthesis process is green and environment-friendly, the product cost is effectively reduced, the preparation method is suitable for industrial large-batch production, and the preparation method further has very high application prospects and using values.
Owner:JIANGSU UNIV

1,3 butylene glycol with reduced odor

A method of reducing odor of 1,3-butylene glycol includes contacting the 1,3-butylene glycol with an activated carbon selected from wood-based activated carbons and chemically activated carbons.
Owner:OQ CHEM BISHOP LLC

Color filter ink, color filter ink set, color filter, image display device, and electronic device

A color filter ink is adapted to be used to manufacture a color filter by an inkjet method. The color filter ink includes C. I. Pigment Red 254, a dispersion medium, and a pigment derivative. The dispersion medium disperses the C. I. Pigment Red 254 and includes one or more compounds selected from the group consisting of 1,3-butylene glycol diacetate, bis(2-butoxyethyl)ether, 2-(2-methoxy-1-methylethoxy)-1-methylethylacetate, triethylene glycol butylmethylether, and diethylene glycol monobutyl ether acetate. The pigment derivative is represented by a prescribed chemical formula.
Owner:SEIKO EPSON CORP
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