116 results about "Isosorbide" patented technology

The invention relates to the technical field of high polymer materials, and discloses self-repairing bio-based polyester resin for a matte powder coating as well as a preparation method and application of the self-repairing bio-based polyester resin. The bio-based polyester resin is prepared from the following preparation raw materials in percentage by mole: 20 mol% to 40 mol% of bio-based flexible diol, 20 mol% to 35 mol% of bio-based furandicarboxylic acid, 10 mol% to 25 mol% of isosorbide, 5 mol% to 25 mol% of itaconic acid, 1 mol% to 15 mol% of long-chain bio-based aliphatic dibasic acid, 1 mol% to 10 mol% of bio-based citric acid, 0.1 mol% to 2.0 mol% of zinc acetylacetonate, 0.1 mol% to 1.0 mol% of a microcapsule corrosion inhibitor, 0.1 mol% to 1.0 mol% of an esterification catalyst and 0.1 mol% to 1.5 mol% of an antioxidant. The bio-based polyester resin does not contain petroleum-based monomers and is high in biochar content.

The invention provides a low-molecular soluble chelating collector as well as a preparation method and application thereof, and belongs to the technical field of mineral processing. According to the collecting agent, low-molecular-weight ethylene glycol terephthalate serves as a precursor, and isosorbide is introduced for a copolymerization reaction; glutamic acid is introduced as a branched chain unit, and the branching degree and reaction active site density of the molecular structure are remarkably improved by utilizing the polyfunctional group characteristic of glutamic acid. A rigid ring structure and an ether bond of the isosorbide endow the medicament with good water solubility and dispersity, and invalid curling of a macromolecular chain is avoided; the introduction of glutamic acid branched chains greatly increases the number of hydroxyl groups and amino groups capable of reacting with carbon disulfide, so that each molecule carries more xanthate groups, and the adsorption stability and coverage density of the molecule on the surface of arsenopyrite are enhanced. By means of the structure, xanthate functional groups are fully exposed, multi-tooth chelation is easily conducted on the xanthate functional groups and iron and arsenic ions on the surface of arsenopyrite, a strong hydrophobic surface layer is formed, and therefore the collecting selectivity is remarkably improved.

The invention discloses a colchicine external preparation with high intradermal residual quantity and percutaneous transmittance as well as a preparation method and application thereof, and belongs to the technical field of pharmaceutical preparations. The invention provides a colchicine external preparation with high intradermal residue and transdermal transmittance. The colchicine external preparation comprises: a) colchicine or a pharmaceutically acceptable salt thereof; b) a penetration enhancer; c) pharmaceutically acceptable excipients and / or excipients; the penetration enhancer is at least one of polyglycerol oleate or isosorbide dimethyl ether. The drug loading capacity and the percutaneous transmittance of the colchicine external preparation disclosed by the invention are remarkably improved. When polyglycerol oleate is selected as a penetration enhancer to prepare colchicine gel, the intradermal retention volume can reach 358.08 micrograms within 20 hours. When isosorbide monomethyl ether is selected as a penetration enhancer to prepare ethosome gel, the accumulated penetration amount can reach 106.87 mu g / cm < 2 >, and the intradermal residual amount can reach 90.58 mu g or above.

The invention provides isosorbide-based copolyester as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. According to the preparation method, a step-by-step esterification method is adopted, firstly, isosorbide, excessive aromatic dicarboxylic acid and an acylating agent are subjected to a first esterification reaction, so that the acylating agent can efficiently and specifically activate secondary hydroxyl of isosorbide, and the initial esterification rate of isosorbide is greatly increased. Meanwhile, the excessive aromatic dicarboxylic acid ensures that the generated isosorbide prepolymer takes carboxyl as a terminal group, so that isosorbide molecules are'locked 'in the middle of a polymer chain segment. Due to the fact that the isosorbide is embedded in the middle of the chain segment in advance, the problem that the isosorbide falls off in the ester exchange reaction due to the fact that the isosorbide is located at the chain end and low in reaction activity in the subsequent polycondensation stage is effectively solved, and therefore the retention rate of the isosorbide in the final polymer is greatly increased, and the glass-transition temperature of the isosorbide is greatly increased.

The present disclosure relates to a co-polyester resin of a composition including dicarboxylic acid, wherein the composition includes C2-5 aliphatic diol and isosorbide in an amount of 70 mol to 97.5 mol and 2.5 mol to 30 mol, respectively, based on 100 mol of the dicarboxylic acid, and the dicarboxylic acid includes C2-6 aliphatic dicarboxylic acid and cyclic aromatic dicarboxylic acid.

The application discloses a preparation of isosorbide catalyst and its preparation method and application. The catalyst is an organic / inorganic hybrid material, wherein the organic component comprises a functional group containing two or more N atoms and a hydrophobic group without nitrogen, and the inorganic component is a mesoporous silica material. The catalyst provided by the application is applied to the reaction of sorbitol and dimethyl carbonate to prepare isosorbide, and has high catalytic performance.

The present invention relates to an isosorbide epoxy derivative compound comprising at least one amine substituent, a method for preparing same, an epoxy resin composition, and a cured product thereof.

The invention discloses copolymerized flame-retardant polycarbonate and a preparation method thereof. The preparation method comprises the following steps; diester carbonate, isosorbide, aliphatic diol, a first flame-retardant monomer and a second flame-retardant monomer are subjected to a reaction in the presence of a catalyst, and the copolymerized flame-retardant polycarbonate is obtained, wherein the first flame-retardant monomer comprises one or more than two of compounds with a structure as shown in a formula I: in the formula I, R1 and R2 are respectively and independently selected from one of carboxyl, alkyl ester group and hydroxyalkyl ester group; the second flame-retardant monomer comprises one or more than two of compounds with a structure as shown in a formula II; in the formula II, R3 and R4 are independently selected from one of carboxyl and alkyl ester. The polycarbonate provided by the invention has better thermal properties and mechanical properties while the flame retardant property is improved.

The invention provides room-temperature phosphorescent polycarbonate as well as a preparation method and application thereof. The polycarbonate is intrinsic phosphorescent polycarbonate; the preparation monomers of the polycarbonate comprise a first monomer and a second monomer; the first monomer is selected from at least one diester carbonate; the second monomer is selected from at least one of isosorbide, isomannitol and isoidurol. The polycarbonate has the characteristics of long afterglow, long phosphorescence lifetime and controllable wavelength, and has excellent phosphorescence characteristic and good mechanical property and thermal property; the added value of the polycarbonate in the traditional application fields of textile, agriculture, chemical industry and the like is greatly improved, and the polycarbonate shows breakthrough application potential in the frontier fields of environmental sensing, anti-counterfeiting and information safety, medical monitoring, photoelectric devices, intelligent wearing and the like.

This invention relates to the field of cosmetic products, specifically disclosing a long-lasting mosquito-repellent lacquerwood wax composite balm. This composite balm, by weight fraction, comprises 20-25 parts by weight of lacquerwood peel wax, 12-18 parts by weight of lemon eucalyptus oil, 3-8 parts by weight of catnip oil, 35-45 parts by weight of a temperature-controlled phase change regulating oil, 5-10 parts by weight of a hydrophobic plant-derived film-forming agent, 2-5 parts by weight of isosorbide dicaprylate, and 0.5-1 part by weight of a fat-soluble antioxidant. The long-lasting mosquito-repellent lacquerwood wax composite balm of this invention achieves a long-lasting and stable release of mosquito-repellent active ingredients, while also possessing suitable temperature-controlled phase change properties, a pleasant skin feel, synergistic mosquito-repellent effects, excellent hydrophobic and sweat-resistant capabilities, and stable storage of natural components.

The present invention relates to the use of a compound X selected from the group consisting of compounds of formula (I), glyceryl ethers, sorbitan esters and isosorbide esters, as an antimicrobial agent against a microorganism causing dental caries, a microorganism causing dental plaque or a microorganism causing gingivitis, wherein R is selected from saturated hydrocarbon chains having 5 to 23 carbon atoms, unsaturated hydrocarbon chains having 5 to 23 carbon atoms, and mixtures thereof.

The present application relates to a kind of synthesis method and device of isosorbide, comprising (1) the homogeneous mixture of sorbitol aqueous solution and solid catalyst in preheater, from the upper end of membrane reactor feed, under vacuum condition reaction, product flows from the lower end of reactor;(2) the separated solid catalyst after the dissolved product of flowing out is added organic solvent, filtrate is crystallized by cooling, and the product isosorbide is prepared.The present application selects membrane reactor and combines fluorine modified solid catalyst to carry out synthesis reaction, while ensuring yield, so that water can be quickly removed from the reaction system, reduce byproduct generation, avoid catalyst blockage, and prolong the service life of catalyst.

The present application relates to the technical fields of epoxy resin, and disclose a kind of isosorbide epoxy resin material and preparation method, the isosorbide epoxy resin material of the present application includes isosorbide polyamine curing agent, and the mass ratio of (60-75) isosorbide epoxy resin, aliphatic epoxy resin, (25-40);Isosorbide epoxy resin and isosorbide polyamine curing agent both contain rigid and heat-resistant double five-membered ring structure, can significantly improve the heat resistance and thermogravimetric loss temperature of epoxy resin, and isosorbide epoxy resin, flexible aliphatic epoxy resin and isosorbide polyamine curing agent all do not contain aromatic ring structure, after light heat treatment, epoxy resin material is not prone to aging yellowing, and the yellowing resistance is good.

The invention discloses an acid-site-adjustable catalyst as well as a preparation method and application thereof, and belongs to the technical field of biomass catalytic conversion. The preparation method disclosed by the invention comprises the following steps: mixing acid B and acid L, and then carrying out calcination treatment to obtain an acid-site-adjustable catalyst, wherein the acid B is one or two of sulfonic acid resin and sulfonated mesoporous SiO2; l acid is a metal oxide. According to the method, the metal oxide with the metal-oxygen vacancy pair is used as the L acid, and then the metal oxide and the L acid are subjected to calcination treatment to control the acid site distribution of the catalyst, so that the activity and the stability of the catalyst are remarkably improved, and the yield and the purity of the isosorbide are improved.

The invention provides efficient mild whitening cream and a preparation method thereof. The raw materials of the cream comprise five phases A and E, the phase C contains 0.1-3% of a mixed solution of isosorbide dimethyl ether and hydroxyl pinacolone retinoate, and the phase D contains 0.01-0.1% of L-carnitine. Wherein the hydroxyl pinacolone retinoate can be specifically combined with an RAR / RXR (Region Receptor / Receptor X Receptor), and the expression of an MITF (Microphthalmia-associated Transcription Factor) gene is reduced, so that the melanogenesis is inhibited; l-carnitine promotes fatty acid beta-oxidation and enhances ATP synthesis to indirectly regulate and control AMPK activity; aMPK enhances transcriptional activity of a tretinoin receptor through phosphorylation of the tretinoin receptor, so that the AMPK and hydroxyl pinacolone retinoate exert a synergistic effect, jointly enhance whitening activity, effectively improve the phenomena of color spots and dark skin and promote the skin color to be uniform, bright and white; meanwhile, the isosorbide dimethyl ether can promote the transdermal absorption of the hydroxyl pinacolone retinoate, the L-carnitine and the related active ingredients.

This invention relates to the field of polymer materials technology, and discloses a modified PET composition, its preparation method, and its application. The modified PET composition, by weight, comprises the following components: 70-85 parts isosorbide-modified PET resin, 2-5 parts rutile titanium dioxide, 3-5 parts needle-shaped calcium carbonate, 2-3 parts spherical calcium carbonate, 1-3 parts hydroxyl- or carboxyl-terminated hyperbranched dispersant, 0.2-0.6 parts antioxidant, 0.3-0.5 parts sodium stearate, and 0.1-0.3 parts nucleating agent. The modified PET composition of this invention achieves high heat resistance and heatability while also exhibiting high impact resistance, low warpage, and excellent processing flowability. It is suitable for thin-walled injection molding of food containers, possessing good dimensional stability and food contact safety.

This invention discloses a bio-based toughening agent-modified isosorbide polycarbonate and its preparation method, belonging to the technical field of isosorbide polycarbonate. The method includes the following steps: synthesis of a star-shaped polyester toughening agent, synthesis of isosorbide-decanediol copolycarbonate, and reactive blending. The method for synthesizing the star-shaped polyester toughening agent involves vacuum drying pentaerythritol at 105-115°C for 0.8-1.2 hours, mixing the dried pentaerythritol with ε-caprolactone and stannous octoate under nitrogen protection, heating to 125-135°C, and stirring the reaction under nitrogen atmosphere for 10-14 hours. After the reaction, cooling to 38-42°C, adding dichloromethane to completely dissolve the product, and precipitating it with cold methanol, followed by drying to obtain the star-shaped polyester toughening agent. The modified isosorbide polycarbonate prepared by this invention exhibits high toughness while maintaining excellent transparency.

The present invention relates to a plasticizer composition comprising a plasticizer A comprising a phthalic acid diester represented by general formula (I) and a plasticizer B comprising an isosorbide diester (b1) represented by general formula (II). (In general formula (I), R1 and R2 each represents a linear or branched alkyl group having 8-14 carbon atoms, which may be the same or different from each other) (In general formula (II), R3 and R4 each represents a linear or branched alkyl group having different carbon numbers)

The invention discloses a whitening and brightening composition and a cosmetic thereof. The whitening and brightening composition is prepared from ascorbyl tetraisopalmitate, tranexamic acid, Brigtenyl, LightSKN CN, a resveratrol fermentation product, fermented lotus essence and super vitamin A, brigtenyl is a mixture composed of a first solvent, glycerin and diglucosyl gallic acid; lightSKN CN is a mixture composed of a second solvent, 1, 3-propylene glycol, xanthophyll, lecithin, sodium ascorbate and vitamin E; the resveratrol fermentation product is a mixture composed of a third solvent, a pichia pastoris fermentation lysate filtrate and resveratrol; the fermented lotus seed essence is a mixture composed of a fourth solvent, butanediol and a lotus seed extract; the super vitamin A is a mixture of isosorbide dimethyl ether and hydroxyl pinacolone retinoate. The whitening and brightening composition not only can inhibit melanin generation, reduce melanin transfer and accelerate melanin metabolism, but also can remove excessive free radicals in skin, so that the effects of long-acting skin whitening and skin brightening are achieved.

The invention discloses PET (polyethylene terephthalate)-based plastic cloth with high barrier property and a preparation method thereof, belongs to the technical field of preparation of plastic cloth, and aims to solve the technical problem that the barrier property and the mechanical property of the PET-based plastic cloth in the prior art need to be further improved. A hydroxyacetamide body, diol oxazoline and isosorbide modified polyester are sequentially synthesized in a polyester system, two structural units are introduced in the polycondensation process, a modified polyester material with cyclic active sites and bicyclic steric hindrance is formed, an oxazoline group provides an interchain strong effect, and orientation locking and structural compactness are improved; the isosorbide skeleton limits chain segment retraction and prolongs a gas permeation path, and the isosorbide skeleton and the isosorbide skeleton have a synergistic effect, so that the obtained plastic cloth keeps relatively high tensile strength and elongation at break, the heating size change rate is remarkably reduced, excellent gas barrier performance is realized, and comprehensive improvement of the performance is embodied.

The invention belongs to the technical field of high polymer materials, and relates to a nucleating agent for purifying isosorbide and a preparation method thereof. The structural formula of the nucleating agent is shown in the specification, wherein X is Na, K or Li; or, the structural formula of the nucleating agent is shown in the specification, and in the formula, Z is Mg or Ca. The preparation method comprises the following steps: mixing refined isosorbide with strong base or metal, and reacting to obtain the nucleating agent for purifying isosorbide. The preparation method is simple, and the prepared nucleating agent can be used for purifying isosorbide to obtain high-purity crystals.

The present invention relates to an antimicrobial composition comprising (A) at least one compound selected from glyceryl ethers, glyceryl esters, sorbitan esters, isosorbide esters, and N-methyl cyclic glucamides according to formula (I), wherein R is a saturated hydrocarbon chain having 5 to 23 carbon atoms or an unsaturated hydrocarbon chain having 5 to 23 carbon atoms; and (B) at least one further substance that is active against body odor.

The application discloses a preparation method of an isosorbide polycarbonate, and relates to the technical field of polyesters, and aims at solving the problem that existing catalysts can cause a large number of side reactions to occur in a reaction, and the isosorbide polycarbonate generated by the side reactions is yellowish, and the yield is reduced. The preparation method comprises the following steps: under the action of a tin composite catalyst, taking isosorbide and diphenyl carbonate as raw materials, and sequentially performing a melt ester exchange reaction and a polycondensation reaction to obtain the isosorbide polycarbonate. The tin composite catalyst comprises a metal oxide and a tin catalyst. The preparation method is used for preparing the isosorbide polycarbonate. The isosorbide polycarbonate and the preparation method can improve the color of the isosorbide polycarbonate.

The application provides a water-oil double-layer penetration-promoting cosmetic composition and a preparation method thereof, and relates to the cosmetic field. The raw materials of the water-oil double-layer penetration-promoting cosmetic composition include 5-30% of an oil phase and 70-95% of an aqueous phase according to a total mass of 100%. The raw materials of the aqueous phase include dipropylene glycol, glycerol glucoside and water. The raw materials of the oil phase include caprylic capric triglyceride and isosorbide dioctanoate. The isosorbide dioctanoate in the water-oil double-layer penetration-promoting cosmetic composition constructs a lipid microchannel, the dipropylene glycol enhances the hydration of the stratum corneum, and the glycerol glucoside activates AQP3 water channel protein. The three channels synergistically improve the penetration efficiency without damaging the integrity of the skin barrier. The penetration-promoting agent has strong broad-spectrum penetration-promoting ability for different polar functional ingredients, the penetration-promoting effect is stable, and the penetration-promoting agent can be stably distributed in the oil and water phases.

This invention discloses an isosorbide-based polycarbonate with a controllable glass transition temperature and its preparation method. The preparation method includes: subjecting isosorbide, hydrogenated bisphenol A, and carbonate diester to at least a transesterification reaction and a polycondensation reaction in the presence of a catalyst to obtain the isosorbide-based polycarbonate with a controllable glass transition temperature. This invention can improve the toughness and processability of isosorbide-based polycarbonate, enhance its UV resistance, and give it a controllable glass transition temperature.

The invention discloses an isosorbide polymerizable chiral agent and a preparation method thereof. The preparation method comprises the following steps: mixing isosorbide, a benzoyl chloride derivative, 3-phenylpyridine, absolute ethyl alcohol, potassium hydroxide and a lipase catalyst, and uniformly stirring; under the anaerobic condition, microwave irradiation is utilized to initiate a reaction, and ultraviolet irradiation and laser irradiation are used while microwave irradiation is started; the microwave frequency is 2350-2500MHz, the microwave power is 400-1500W, the ultraviolet wavelength is 190-380nm, the illumination intensity is 5mW / cm < 2 >-5W / cm < 2 >, the temperature is 20-100 DEG C, and irradiation is carried out for 0.5-12h to prepare the liquid crystal polymer which can be used as a chiral compound, can be polymerized, has a strong HTP value and a low melting point, has excellent dissolvability with other liquid crystal compounds, can be used as a constituent material of a polymerizable liquid crystal polymer, has large twisting force, and can be used for preparing the liquid crystal polymer. The optical anisotropic body with excellent optical characteristics can be prepared, the raw materials are cheap and easy to obtain, the preparation method is simple, and the product purity is high.

A polyalkylene glycol terminated poly-carbodiimide has formula 1:R1 is an aliphatic group from about 5 to about 12 carbon atoms, a cycloaliphatic moiety of from about 6 to about 20 carbon atoms, an isosorbide moiety, a 1,3-furan moiety, an L-lysine alkyl ester moiety, a rosin moiety, a cycloaliphatic unsaturated moiety, or a cardanol moiety; R2 is hydrogen or a methyl group; R3 is a methyl, ethyl, or propyl moeity; and n and m are integers and are each independently between 1 and about 30.

The application discloses a traditional Chinese medicine composition for treating radiation-induced lung injury, and belongs to the technical field of medicine for treating lung injury, and particularly relates to a method for preparing the traditional Chinese medicine composition, which comprises the following steps: mixing a fibrous compound with water to prepare a slurry, then adding solid particles, a film forming agent and a pore forming agent to mix, preparing a microfiltration membrane slurry, and finally dehydrating and drying in a mold to obtain a microfiltration membrane, wherein the fibrous compound can be cotton fiber or hydroxyl grafted cotton fiber, the hydroxyl grafted cotton fiber is prepared by reacting epichlorohydrin with cotton fiber, and then reacting with a hydroxylate; the hydroxylate comprises isosorbide and tris(hydroxymethyl) methyl glycine. The traditional Chinese medicine composition prepared by the method has good therapeutic effect on radiation-induced lung injury, small toxicity and can improve lung function.

The application relates to a polyurethane resin and a preparation method and application thereof, and belongs to the technical field of polyurethane resins. The preparation raw materials of the polyurethane resin include the following components in parts by weight: polyester polyol 3-21 parts, carbon dioxide-based polyol 2-20 parts, antioxidant A 0.001-0.01 part, phosphoric acid 0.001-0.02 part, chain extender 0.5-4 parts, isocyanate 2-8 parts, solvent 68-72 parts and terminating agent 0.01-0.05 part; and the preparation raw materials of the polyester polyol include isosorbide, 3-methyl-1,5-pentanediol, terephthalic acid and adipic acid. The polyurethane resin is prepared through a specific composition of polyester polyol and a suitable prepolymerization process, and synthetic leather is prepared through a large immersion process, so that the final product, polyurethane handle leather, has excellent dry and crisp hand feeling and high scratch resistance.

The application relates to the cosmetic technical field, in particular to a high-efficiency anti-aging composition and a skin care product containing the same. The high-efficiency anti-aging composition is prepared from the following raw materials in parts by mass: 12-15 parts of oil-based concentrated active ingredients, 25-35 parts of base collagen liquid, 15-18 parts of ikar, 12-16 parts of TWEEN 20, and 22-25 parts of isosorbide dimethyl ether. The oil-based concentrated active ingredients include safflower seed oil, acmella oleracea flower / leaf / stem extract, Astragalus membranaceus (Fisch.) Bunge root extract, ubiquinone and vitamin E. The base collagen liquid includes type XVII collagen, type VII collagen and type IV collagen. The composition can effectively reduce skin wrinkles, improve skin tightness and reduce skin sagging in a long term, and prevent skin aging, and realizes long-term anti-aging from epidermis to dermis.