194 results about "Isosorbide" patented technology

The invention relates to the technical field of high-performance polyester, in particular to a high-strength low-shrinkage polyester fiber and a preparation method thereof. The defects that existing polyester fibers are poor in strength and shrinkage resistance are overcome. The preparation method comprises the following steps: mixing the modified resin, the modified nano silicon dioxide, the composite antioxidant, the composite nucleating agent and the composite lubricant, and carrying out melt spinning. Wherein the modified resin is prepared from the following raw materials: dimethyl terephthalate, isophthalic acid, ethylene glycol and isosorbide; the modified nano silicon dioxide comprises nano silicon dioxide, KH570 and silver nitrate; the composite antioxidant comprises an antioxidant 1010, an antioxidant 168 and an antioxidant 1222; the composite nucleating agent comprises sodium benzoate and nano montmorillonite; the composite lubricant is prepared from ethylene bis stearamide and pentaerythritol stearate. The prepared polyester fiber is high in strength, high in shrinkage resistance and suitable for manufacturing of outdoor equipment.

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 relates to the technical field of cosmetics, in particular to an efficient anti-aging composition and a skin care product containing the composition. The invention discloses an efficient anti-aging composition which 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 Ectoine, 12-16 parts of TWEEN 20 and 22-25 parts of isosorbide dimethyl ether, and the oil-based concentrated active ingredients are prepared from safflower seed oil, an extract of flowers / leaves / stems of herba lysimachiae, an extract of radix astragali membranaci, ubiquinone and vitamin E; the base collagen liquid comprises XVII type collagen, VII type collagen and IV type collagen. Aiming at the problems that an existing skin care product cannot effectively reduce skin wrinkles, improve skin compactness, reduce skin sagging and prevent skin aging for a long time, the composition disclosed by the invention realizes long-term aging resistance from epidermis to dermis, effectively reduces wrinkles, improves compactness and improves skin sagging.

The invention discloses an isosorbide-based heat-resistant yellowing-resistant biodegradable polyester and a preparation method thereof.The preparation method comprises the following steps that under the condition of an esterification catalyst, dibasic acid and dihydric alcohol are subjected to an esterification reaction, the dibasic acid is composed of terephthalic acid and 1, 1-cyclohexanedicarboxylic acid, and the dihydric alcohol is composed of 1, 1-cyclohexanedicarboxylic acid; the dihydric alcohol is composed of isosorbide and aliphatic dihydric alcohol; after the esterification reaction is finished, adding a polycondensation catalyst, a stabilizer and a toner into an esterification reaction product to carry out polycondensation reaction; after the polycondensation reaction is finished, the polycondensation product is subjected to bracing and grain-sized dicing, and the isosorbide-based heat-resistant and yellowing-resistant biodegradable polyester is obtained. 1, 1-cyclohexanedicarboxylic acid is introduced to replace part of terephthalic acid, aromatic ring structures on polyester chains are reduced, the yellowing resistance of polyester is improved, meanwhile, biomass-sourced isosorbide is added as a heat-resistant modified component, and the isosorbide-based heat-resistant and yellowing-resistant biodegradable polyester is obtained through a direct esterification method.

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 relates to a composition with a permeation enhancing effect and application thereof. The composition is prepared from the following components in parts by weight: 10 to 15 parts of ethoxydiethylene glycol, 10 to 15 parts of isosorbide dimethyl ether, 5 to 10 parts of folium artemisiae argyi extract and 1 to 6 parts of tea tree essential oil. According to the permeation enhancing composition, traditional azone easy to sensitize and ethyl alcohol easy to cause stimulation are abandoned, the efficient, safe and lasting permeation effect is finally achieved, and the permeation enhancing composition meets the high-activity component delivery requirement of cosmetics.

The invention discloses a preparation method of a high-toughness transparent plastic cup, and belongs to the technical field of plastic preparation, and the preparation method comprises the following steps: 1, preparing a modified elastomer toughening agent from 16.4-21.9% of an isosorbide-based plasticizer, 2.2-2.6% of polydimethylsiloxane, 1.5-2.2% of citric acid and the balance of polycaprolactone; 2, preparing a cinnamyl aldehyde bamboo pulp antibacterial reinforcing agent from 4.8 to 8.2 percent of cinnamyl aldehyde, 22 to 36 percent of bamboo pulp, 7.5 to 10.6 percent of bio-based 1, 3-propylene glycol (PO3G) and the balance of water; 3, weighing the cinnamyl aldehyde bamboo pulp antibacterial reinforcing agent, the modified elastomer toughening agent and polylactic acid to prepare high-toughness polylactic acid; and 4, preparing the high-toughness transparent plastic cup from the high-toughness polylactic acid. The high-toughness transparent plastic cup is prepared by compounding the modified elastomer flexibilizer, the cinnamyl aldehyde bamboo pulp antibacterial enhancer and the polylactic acid, and has the advantages of high strength, excellent toughness, good staphylococcus aureus inhibition effect, biodegradability and the like.

The application discloses a kind of nano zinc oxide enhanced UV curing luminous ink and preparation method thereof, belong to ink technical field, the nano zinc oxide enhanced UV curing luminous ink, including the following raw materials: nano zinc oxide 15-21 parts;2-hydroxybenzophenone 3.6-7.8 parts;Isosorbide dimethyl ether 78-95 parts;Epoxy acrylate resin 18-27 parts;Polyester acrylate resin 32-38 parts;Acrylate 47-65 parts;Luminous powder 17-23 parts;Defoaming agent 0.6-1.2 parts;Dispersing agent 0.8-2.1 parts;Leveling agent 1.4-1.8 parts;Photoinitiator 0.6-0.9 parts.The application is short in total preparation time, and production efficiency is greatly improved;In addition, the application speeds up the curing speed, and the water resistance is also significantly improved;The dispersion rate of luminous powder is improved by the way of nano zinc oxide coated with luminous powder, so that the prepared nano zinc oxide enhanced UV curing luminous ink presents more uniform fluorescent effect.

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 invention relates to a method for preparing bio-based isosorbide dimethyl ether through resin catalysis, and belongs to the technical field of organic synthesis. Adding corn starch into a sulfuric acid solution, hydrolyzing into glucose, and filtering to obtain a glucose solution; adding a solid acid catalyst into the concentrated glucose solution, and filtering after reaction; carrying out reduced pressure distillation on the filtrate to obtain an isosorbide crude product, and purifying through recrystallization; the preparation method comprises the following steps: adding isosorbide, a methylation reagent and a basic catalyst into a reaction kettle, stirring for reaction, cooling and filtering; and distilling the filtrate, and collecting fractions to obtain high-purity isosorbide dimethyl ether. The solid acid catalyst is sorbic acid based styryl macroporous cation exchange resin; the styryl macroporous cation exchange resin is soaked in sulfuric acid to be activated and then is mixed with sorbic acid chloride, 2-thiophenecarbonyl chloride and zinc chloride to react, and then washing and drying are performed to prepare the solid acid catalyst; the isosorbide dimethyl ether prepared by the method disclosed by the invention is high in purity and relatively high in yield.

The invention discloses a bio-based polycarbonate copolymer and a preparation method thereof, and belongs to the technical field of new materials. The bio-based polycarbonate copolymer is prepared from isosorbide and isomeride thereof, crystallizable oligomer diol, amide diol, carbonic acid diester and a catalyst through a transesterification process and a polycondensation process. The problems that the plasticity and toughness of bio-based polycarbonate are poor, and the strength, toughness and heat resistance cannot be balanced are successfully solved, and finally, the high-strength, high-toughness and high-heat-resistance bio-based polycarbonate polymer is successfully prepared through copolymerization of isosorbide, amide diol and crystallizable oligomer diol.

This invention discloses a method for preparing bio-based polycarbonate, belonging to the field of polymer materials technology. This method introduces a highly efficient catalyst (nano-cerium oxide) into the polyisosorbate preparation system through specific steps, precise control of reactant ratios, pre-activation treatment, and the use of antioxidants, achieving the preparation of high-bio-based, high-hardness, and high-performance polyisosorbate. This method not only simplifies the traditional polycarbonate material preparation process and reduces production costs, but also improves the environmental friendliness and sustainability of the product, solving many problems faced by traditional polycarbonate materials in the current market.

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.

This polarizing film is obtained by laminating, in order, a polarizer, an adhesive layer, and an optical film. The polarizing film is a polycarbonate-based resin film. The polycarbonate-based resin film contains structural units derived from a dihydroxy compound represented by formula (1). The HSP distance between the HSP of the polycarbonate-based resin film and the HSP of an adhesive composition forming the adhesive layer is 4.0-7.0. The adhesive layer has a glass transition temperature of 100°C or lower. The polarizing film has excellent adhesiveness between a polarizer and a polycarbonate-based resin containing structural units derived from isosorbide.

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 present invention discloses a medium-chain / short-chain isosorbide-based structural lipid plasticizer and its preparation method, belonging to the field of plastic additives. The invention utilizes aromatic isosorbide with medium-chain fatty acids and short-chain fatty acids through esterification and acylation reactions to produce the medium-chain / short-chain fatty acid isosorbide-based structural lipid. The lipid has a chemical structure and physicochemical properties similar to those of phthalate plasticizers and is renewable, green, non-toxic, and biodegradable. Its structure is as follows: #imgabs0#n=6-16;m=0-5.

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 invention provides a polyester wherein: a dicarboxylic acid constituent unit is a constituent unit derived from 2,6-naphthalenedicarboxylic acid and / or an ester derivative thereof; and a diol constituent unit includes a constituent unit derived from any isosorbide, and 27.5 mol% or more of a constituent unit derived from 1,4-cyclohexanedimethanol among a total 100 mol% of said diol constituent units. A feeding bottle according to the present invention is formed using said polyester.

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.

An emollient blend comprising or consisting of (a) ethylhexyl acetoxystearate; (b) 2, 6-diethylhexyl naphthalate and / or dimethyl isosorbide (DMI), and a solvent; and (c) propylene glycol di (octoate / caprate). A sunscreen composition comprising or consisting of the following components: (a) ethylhexyl acetoxystearate; (b) 2, 6-diethylhexyl naphthalate and / or dimethyl isosorbide (DMI), and a solvent; and (c) propylene glycol di (octoate / caprate), and (d) at least one crystalline UV filter. The invention relates to the use of an emollient blend for dissolving an oil-soluble crystalline UV filter in an oil phase or emulsion, said emollient blend comprising or consisting of (a) ethylhexyl acetoxystearate; (b) 2, 6-diethylhexyl naphthalate and / or dimethyl isosorbide (DMI), and a solvent; and (c) propylene glycol di (octoate / caprate).

The present invention relates to a polyester fiber, a preparation method thereof and a molded article prepared therefrom. The polyester fiber comprises a diol moiety derived from isosorbide in a specific amount and is formed into a polyester resin having a specific oligomer content, thereby providing a molded article having excellent saline water resistance, chemical resistance, light resistance and good knot strength, and capable of maintaining high transparency.