793 results about "Glyceryl Ethers" patented technology

Pharmaceutical compositions are provided containing a combination of benzonatate and guaifenesin, or pharmaceutically acceptable salts thereof. Methods of using compositions comprising benzonatate and guaifenesin, or pharmaceutically acceptable salts thereof, provide relief from cough, pulmonary congestion or both. The compositions and methods provide relief to opiate-sensitive individuals, in particular, as well as to infants and other pediatric patients.

A liquid radiation-curable composition that comprises(A) at least one polymerizing organic substance comprising a mixture of(1) at least one alicyclic epoxide having at least two epoxy groups; and(2) at least one difunctional or higher functional glycidylether of a polyhydric compound;(B) at least one free-radical polymerizing organic substance comprising a mixture of(1) optionally, at least one trifunctional or higher functional (meth)acrylate compound; and(2) at least one aromatic di(meth)acrylate compound;(C) at least one cationic polymerization initiator;(D) at least one free-radical polymerization initiator;(E) optionally, at least one hydroxyl-functional aliphatic compound; and(F) at least one hydroxyl-functional aromatic compound;wherein the concentration of hydroxyl groups in the radiation-curable composition is at least about 1.1 equivalent OH groups per kilogram;wherein the concentration of epoxy groups in the radiation-curable composition is at least about 5.5 equivalent epoxy groups per kilogram; andwherein the amount of trifunctional or higher functional (meth)acrylate compound (B)(1) is from 0% to about 3% of the composition and the amount of aromatic di(meth)acrylate compound (B)(2) is at least 10% of the composition.

The invention relates to an epoxy hardener, in particular to a non-ionic self-emulsifying aqueous epoxy hardener. The hardener is prepared according to the following steps: adopting hydrophobic alkylamine and hydrophilic diglycidol ether with low molecular weight for reaction so as to obtain a diepoxy compound which has epoxy groups at two ends and a middle nitrogen atom linked with a long hydrophobic alkyl side chain; and adopting alicyclic amine for reaction for purpose of sealing the ends or respectively using the alicyclic amine and hydrophilic amine to seal the two ends, and finally obtaining the amino-terminated non-ionic self-emulsifying aqueous epoxy hardener similar to the structure of surfactant. The hardener can be further mixed with deionized water so that a light-yellow aqueous epoxy resin hardener with 50-60 percent of solids content can be obtained. The hardener has good self-emulsifying effect, is well compatible with epoxy resin and has high stability and good flexibility and surface activating function. The hardener can be widely applied in materials such as aqueous epoxy resin paint, epoxy resin binding agent, aqueous epoxy grouting materials, and the like.

The invention discloses a comb polyurethane associated thickener and a preparation method and an application thereof and the preparation method comprises the following steps: adopting primary amine and diglycidyl ether to react, obtaining hydrophobic diol; then adopting polyether diol, catalyst, diisocyanate, hydrophobic diol and alkanol to react, using precipitate for precipitation after finishing the reaction, drying the precipitation and obtaining the comb polyurethane associated thickener. More than two hydrophobic groups (long chain alkyl) in the molecules of the comb polyurethane associated thickener so that the consistency of the emulsion paint can be greatly improved, the emulsion paint has not only high viscosity under low shear but also low applicable viscosity under high shear, and the quality of the emulsion paint is increased. The polyurethane associated thickener is applicable to thickening the water-containing system and can be used in emulsion paint, varnish, adhesive, leather, papermaking, dyeing and printing, ink, cosmetics and the like.

The invention discloses a method for preparing polyglutamic acid hydrogel. In the method, polyglutamic acid is used as a main raw material, glycol diglycidyl ether is used as a crosslinking agent and a pH value of the system is adjusted at regular intervals in the reaction process. The method comprises the following steps of: dissolving 15 to 30 percent of polyglutamic acid into distilled water, adding glycol diglycidyl ether in an amount which is 20 to 50 percent based on the molar amount of of polyglutamic acid monomers, uniformly stirring the mixed solution, adjusting the pH value of the system to 3 to 5, and performing a reaction at the temperature of between 40 and 80 DEG C for 4 to 10 hours, wherein the pH value of the system is adjusted to the initial value every 1 to 2 hours; and performing full swelling dialysis and drying of the prepared hydrogel. The method has the advantages that: the reaction is performed in aqueous solution, which contributes to environmental protection; and the preparation period is short, and the hydrogel prepared by the method is high in water absorption and high in swelling speed, and possesses bio-degradability. The hydrogel prepared by the method can be applied to medicament carriers, medical and hygienic products, water-retaining agents used in farming, forestry and gardening industries, thickening agents for cosmetics and foods, anti-condensation agents, flocculating agents, water treatment chemicals and the like.

The invention relates to a paint material with formed organic film, in particular to an epoxy solvent-free anticorrosive paint applied to low surface treatment steel structure. The anticorrosive paint is prepared by efficiently compounding rusted coating pigments such as zinc molybdate, zinc phosphate, aluminium trippolyhosphate, iron oxide red and the like, using cashew nut oil modified long-chain amine phenolic aldehyde as, alicyclic glycidyl ether as active diluent, thus overcoming the problems that surface treatment technique in coating construction costs high and heavy anticorrosive paint with high solvent content pollutes the environment, having easy preparation and construction, low cost, fast solidification at high temperature, good mechanical and anticorrosive performance, solvent-free and environment-friendly properties, and being applicable to heavy anticorrosive projects of steel structures such as ship, train, bridge and the like.

The invention relates to magnetic silicon dioxide microspheres modified with diethylaminoethyl on the surface and a preparation method and an application thereof; the sol-gel method is adopted to prepare magnetic silicon dioxide microspheres which have ferroferric oxide nanoparticles as cores and silicon source, namely tetraethoxysilane as shells; by adopting the microspheres as template, alkylene oxide coupling agent 3-glycidoxypropyltrimethoxysilane (GPTMS) as activator and diethylaminoethyl hydrochloride as functional group, the magnetic silicon dioxide microspheres modified with diethylaminoethyl (DEAE) on the surface are prepared. The method comprises the preparation of magnetic silicon dioxide microspheres, the epoxidation of magnetic silicon dioxide microspheres and the DEAE surface modification. The method solves the problems that the bindingability between the existing magnetic microspheres and nucleic acid is not high, the preparation processes are complicated and the like. The bindingability between the magnetic microspheres prepared by the method and nucleic acid is high so as to be used to separate nucleic acid from the biological sample.

The invention discloses an epoxy adhesive for OLED frame encapsulation and a preparation method of the epoxy adhesive. The epoxy adhesive is prepared from the following components in parts by weight:50-80 parts of epoxy resin, 5-10 parts of epoxy diluents, 5-10 parts of flexibilizer, 20-40 parts of filler, 1-5 parts of photoinitiator, 0.1-1 part of antioxidant and 0.3-3 parts of additive. The epoxy resin is one or a mixture of more of cycloaliphatic epoxy resin and bisphenol F epoxy resin. The epoxy diluent is one or a mixture of more of oxetane and aliphatic glycidyl ether. The photoinitiator is a cationic photoinitiator which comprises an iron-arene photoinitiator and a hexafluorophosphate photoinitiator. The epoxy adhesive adopts a curing way that ultraviolet exposure and heating are conducted in sequence, has the advantages of less curing agent residue, less volatile component residue, low curing temperature, strong bonding force, boiling resistance, water vapor resistance, oxygenbarrier performance and the like, and reaches the halogen-free standard.

A fragrance composition having high fragrance properties such as fragrance diffusivity and long-lasting property obtained without changing the fragrance note of the fragrance composition which is useful in various fragrance providing products such as cosmetics, toiletry products, bath compositions and pharmaceuticals having satisfactory fragrance properties such as fragrance diffusivity and long-lasting property. The fragrance composition contains 0.1 to 90% by weight of a glyceryl ether derivative represented by the following general formula (I), such as 2-ethylhexyloxypropanediol as a fixative or fragrance note-improving agent. The fragrance-providing product contains 0.01 to 50% by weight of the fragrance composition in the final product composition. General formula (I) is:wherein R1 represents an aliphatic hydrocarbon group having 4 to 12 carbon atoms which may have a branched chain or an aromatic hydrocarbon group, which may have a substituent.

The invention refers to a kind of compound lyosol fixing arrangement agent, a synthesizing method and the usage. The arrangement agent is made up of following products: (1) the silicon sol is made up of gamma-glycidol ether oxygen propyl trimethoxy-silane, water and hydrochloric acid, whose mol proportion is: 1:5-100:1í‡10 -5-1í‡10 -1; (2) the titanium sol is made up of titanic acid butyl ester, water and hydrochloric acid whose proportion is 1:0.1-10:10-200: 1í‡10 -4-1í‡10 -1; (3) the product is produced by mixing above mentioned silicon sol and titanium sol, the mol proportion of silicon and titanium is 1:0.05-1.0. The arrangement agent may form a mesh particle film on the surface of the fiber, realizes the color fixing aim.

The invention discloses a surfactant composition, the surfactant composition comprises essential components such as a component (a), a component (b), a component (c) and a component (d); wherein the component (a) is selected from one or more long-chain fatty acyl amino acid salt represented by the following general formula (1) or (2), the component (a) accounts for 1% to 50wt% of the total weight of the surfactant composition, and the general formula (1) and (2) are shown in the specification; the component (b) is selected from one or more linear chain or branched chain aliphatic hydrocarbon glyceryl ether represented by the following general formula (3), the component (b) accounts for 0.1% to 10wt% of the total weight of the surfactant composition, and the general formula (3) is shown in the specification; the component (c) is selected from one or more water-lost sorbitol fatty acid ester represented by the following general formula (4) and / or is selected from one or more alkyl saccharide represented by the following general formula (5), the component (c) accounts for 0.1% to 10wt% of the total weight of the surfactant composition, and the general formula (4) and (5) are shown in the specification; the component (d) is selected from a solvent comprising one or more from water, lower alcohol, polyol and polyol ether, and the component (d) accounts for 30% to 90wt% of the total weight of the surfactant composition.

The present invention provides a liquid detergent composition having high detergency without damaging styrene-based resin.The liquid detergent composition comprising (a) 0.1 to 50% by weight of a mixture of at least two different compounds from each other in view of their strutural isomers and / or their number of carbon atoms, selected from glyceryl-ether compounds having the formula (I): R-OCH2CH(OH)CH2OH (I) wherein R is an alkyl or alkenyl group having 1 to 11 carbon atoms; (b) 0.01 to 30% by weight of a surfactant; (c) 0.01 to 30% by weight of a builder or an alkali agent; and (d) the balance of water.

The invention provides a release agent for an aluminum alloy mold and a preparation method of the release agent. The release agent comprises, by weight, 10-20 parts of polyethylene wax, 1-5 parts of polyving akohol, 4-9 parts of silicone oil, 2-6 parts of boraxes, 19-27 parts of talcum powder, 6-14 parts of sodium dodecyl benzene sulfonate, 0.2-1.3 parts of cetyltrimethylammonium chloride, 5-10 parts of compound emulsifiers, 0.05-0.2 part of dichlorophen, 0.1-0.25 part of oxygen propylene ethylene oxide glyceryl ether, 0.2-1.4 parts of inhibiters, and 60-90 parts of water. The preparation method of the release agent comprises the steps that the raw materials are weighed according to the formula, and then stirred and cooled, and thus the release agent for the aluminum alloy mold is obtained. The release agent prepared through the method is safer, clean and free of pollution; compared with a traditional oil-based release agent, the release agent has the advantages that the cooling effect is good, accumulation is avoided, and the surface quality of castings is good; and compared with a powdery release agent, the release agent has the advantage of being low in cost.

A polyethanediol modified trisiloxane containing glucosylamido used as the assistant of agricultural chemical to decrease the surface tension of water is prepared through catalytic reaction between hexamethyldisiloxane and aminosilane to obtain aminotrisiloxane, reacting on lactone gluconate in methanol to obtain trisiloxane containing glucosylamido, and modifying it by polyethanediol method glicideether.

The invention relates to a preparation of a double-long-chain non-ionic oil-removing surfactant and applications, belonging to colloid and interface chemistry fields. In the invention, by reacting fatty alcohol with chloropropylene oxide and ethylene oxide, a novel non-ionic surfactant-double-long-chain alkyl glyceryl ether ethoxy compound is prepared. The surfactant has excellent chemical stability, acid and alkali resistance and inorganic electrolyte, wherein the hydrophile lipophile balance can be regulated by controlling alkyl chain length of the raw material fatty alcohol and ethylene oxide number of added on each molecule. The surfactant has big saturation adsorption quantity on a water / air and oil / water interface, thereby high efficiency reducing a tensile force of a crude oil / water interface. The surfactant can be matched to other surfactants, wherein a mol fraction of the surfactant is 0.1-0.5, and a total mass fraction of the surfactant is in a range of 0.05-0.5%, under an oil reservoir temperature 45 DEG C, the interface tension force of Daqing crude oil / stratum water is reduced to 10-3mN / m order of magnitude, without addition of any acid salt, basic salt, neutral electrolyte and cosurfactant. Therefore, the surfactant is suitable for being used as an alkali-free oil displacement agent.

A radiation curable composition contains an epoxy-functional silicone polymer, an iodonium photocatalyst and a non-fluorescing polycyclic aromatic compound containing at least one hydroxy, alkoxy or glycidyl ether substituent bonded to an aromatic carbon atom of the compound.

A detergent composition for cleaning a precision part, comprising an organic solvent, 5 to 30% by weight of a glyceryl ether having an alkyl group or alkenyl group having 4 to 12 carbon atoms, and 5% by weight or more of water. The detergent composition can be used for cleaning a precision part such as a metal part, an electronic part, a semiconductor part or a liquid crystal display panel.

A pigment dispersed resin for cathode electrophoretic paint is a cationic resin containing urea group and quaternary ammonium salt group and prepared by reaction between quaternary aminating agent and epoxy resin. Saaid quaternary aminating agent is prepared from aromatic polyisocyanate, alcohol and / or ether, and primary amine through addition and neutralizing by organic acid. Said epoxy resin is the biphenol A or F and glycide ether type one. A pigment slurry is prepared from said pigment dispersed resin, conventional pigment, catalyst and deionized water.

The invention discloses star-shaped hydroxyl polyester adopting polyhydric alcoho as a nucleus and a preparation method and an application of the star-shaped hydroxyl polyester. The preparation method comprises the following steps: enabling 1 to 8 molar caprolactone and 1 to 4 molar anhydride to react for 6 to 10 h at 80 to 140 DEG C by adopting 1 molar small molecular polylasic alcohol as a core molecule to obtain a matrix star-shaped polyester, then reacting with 1 to 4 molar monoglycidyl ether at 90 to 150 DEG C to obtain star-shaped hydroxyl polyester. The prepared star-shaped hydroxyl polyester has the advantages of simple synthesis process, high solid content and low viscosity, a hydroxyl value is 140 to 250 mg KOH / g (80 percent of solid content), the viscosity at 25 DEG C when the solid content is 80 percent is 300 to 3000cp, the star-shaped hydroxyl polyester can be cross-linked with a polyurethane curing agent containing an isocyanate group and can be used for preparing a coating with a high solid content, the VOC content at the construction viscosity is smaller than 380 g / L, and the film performance can satisfy the national standard of the solvent-type dual-component polyurethane wood coatings.

The invention relates to a method for preparing glycerin ether from glycerol. The glycerol reacts with ether, alcohol or olefinic hydrocarbon in the existence of a catalyst to obtain di-tert-butyl glycerin ether, tri-tert-butyl glycerin ether and other glycerin ethers which can be used as diesel fuel additives, antibacterial agents, flavoring agents, humectants, emulsifying agents and surfactants at a high yield.

The invention relates to a preparation method of polyether polyol, in particular to a preparation method for high activity high molecular weight low unsaturated polyether polyol. The preparation method comprises the following steps: (1) carrying out a polymerization reaction with epoxypropane by taking a mixture composed of a glyceryl ether compound and a small molecular compound as an initiator and a phosphonitrile compound as a catalyst to synthesize a polyether polyol oligomer; (2) adding the mixture of epoxypropane and ethylene oxide at a pressure of -0.1-0.3 MPa and at a temperature of 90-130 DEG C for a polymerization reaction and an inner pressure reaction by taking the polyether polyol oligomer as a basic polyether, and then adding ethylene oxide further to carry out a blocked polymerization reaction and the inner pressure reaction to prepare a polyether polyol coarse polymer; and (3) carrying out refining to obtain the polyether polyol. The polyether polyol prepared by the invention has the characteristics of being high in activity, small in content of volatile organic compounds, small in smell and high in compressing strength.

Compositions containing surfactant compounds according to formula (I) R4OCH2CH(OH)CR2R3ZR1   (I) wherein Z is S, SO, or SO2, can have a range of equilibrium and / or dynamic surface tensions and a range of foaming performance attributes, depending upon the particular values of Z, R1, R2, R3, and R4. The compounds of formula (I) may be prepared by a process that includes reaction of a thiol with a glycidyl ether.

The present invention relates to a protein A immunoadsorption material for purifying blood and its preparation method. Said protein A immunoadsorption material is a high-molecular material which is obtained by using agarose gel as carrier matrix, making said agarose gel be reacted with diglycidyl ether coupling reagent to obtain active carrier, then making said active carrier and protein A implement coupling reaction. Said invention can be used for making clinical immunoadsorption therapy.

The invention relates to the technical fields of surgical hemostasis and chronic heal wound hemostasis and wound protection, and in particular relates to a biodegradable hemostatic membrane. Alkaline crosslinking is carried out on sodium hyaluronate, a cellulose derivative and a cross-linking agent to obtain gel I; sodium alginate or sodium hyaluronate and 1,4-Butanediol diglycidyl ether are mixed to obtain gel II; the gel I and the gel II are mixed and cross-linked, and then purified and dried, and subjected to film formation under pressure to obtain the biodegradable hemostatic membrane. The obtained membrane is loose in structure and high in safety, easily attaches to and disperses on the surface of a wound, quick to stop bleeding, good in biocompatibility, suitably adjustable in in-vivo degradation time, wide in application range, low in cost, short in process period, little in pollution, low in energy consumption and easy for realizing industrialization, and has the good functions of stopping bleeding, promoting healing and preventing inflammation.

A rubber composition including a natural or synthetic rubber, and an adhesive resin capable of unexpected adhesion to metal, polymer and glass substrates, particularly cords in radical tires, hoses, conveyor belts, transmission belts, and the like by the addition of a liquid composition containing long chain esters, including mono, di- and tri-esters, and one or more reactive diluents. In the preferred embodiment, the reactive diluent is selected from (1) glycidyl ethers, (2) diglycidyl ethers; (3) aliphatic, straight chain epoxides; (4) epoxidized vegetable oils, particularly epoxidized soybean oil; (5) cycloaliphatic epoxies; (6) glycidyl esters, and (7) diglycidyl esters.

The invention relates to a room-temperature cured epoxy polysiloxane resin. The resin is a composition which comprises a first component, namely an epoxy resin, a second component, namely aliphatic glycidyl ether, a third component, namely low molecular weight polysiloxane with an ethoxy functional group, and a fourth component, namely organic phosphonic acid. The aliphatic glycidyl ether is taken as a solvent when the polysiloxane with the ethoxy functional group is prepared, so as to control the molecular weight of the polysiloxane; the resin composition is subjected to moisture absorption and cured at room temperature by the organic phosphonic acid, and can be prepared into a solvent-free paint with a single component; a cured coating has the advantages of an epoxy resin coating and a polysiloxane coating, especially has good adhesive force on steel products, and has excellent corrosion resistance and weather resistance. The resin composition can be applied to a matrix resin as a base coat and a finishing coat.

The invention discloses a preparation method of hyperbranched poly-glycidyl ether grated rare earth up-conversion luminescence nanocrystal. The preparation method comprises the following steps of: adding 1 part by weight of rare earth up-conversion luminescence nanocrystal into 10-100 parts by weight of tetrahydrofuran for ultrasonic dispersion, further adding potassium methoxide, stirring for 30 minutes at 30-50 DEG C, subsequently heating to be 70 DEG C so as to evaporate the solvent, further adding the components into 10-100 parts by weight of dioxane for ultrasonic dispersion, introducing argon for 5-30 minutes, raising the temperature to 90-120 DEG C, dropwise adding 1-50 parts by weight of glycidol, and reacting for 4-48 hours so as to obtain the hyperbranched poly-glycidyl ether grated rare earth up-conversion luminescence nanocrystal. The preparation method disclosed by the invention is simple to operate, the raw materials are easily available, the prepared nanocrystal has excellent up-conversion luminescence property and is high in luminescence intensity, good in photostability and good in solubility, and due to rich hydroxyl functional groups on the surface, the nanocrystal has good application prospects in aspects such as fluorescence labeling, biological detection and luminescent devices.

The invention belongs to the technical field of resins, and relates to an epoxy resin composition and a preparation method thereof, wherein the epoxy resin composition comprises an epoxy resin component A and a curing agent component B according to a mass ratio of 100:80-200, the epoxy resin component A comprises, by mass, 10-50 parts of a mixture comprising one or two selected from an glycidyl amine type epoxy resin and an organic silicon modified epoxy resin, 10-50 parts of a polyphenol type glycidyl ether epoxy resin and 20-60 parts of an alicyclic epoxy resin, and the curing agent component B comprises, by mass, 50-90 parts of a liquid anhydride and 10-50 parts of a modified toughening agent. According to the present invention, the organic silicon modified epoxy resin can enhance the high-temperature resistance of the epoxy resin composition, improve the lubricity of the epoxy resin composition, reduce the friction of the product in the mold, accelerate the pultrusion speed, and improve the surface smoothness of the product.

The invention discloses a preparation method of amphiphatic copolymer modified chitosan compound. The method comprises the following steps: firstly using a mixture of lactic acid and L-malic acid as initial raw materials to directly prepare polylactic acid and malic acid oligomer by polycondensation, and preparing a series of copolymers in different hydrophilic degrees by changing the proportion of the lactic acid and L-malic acid (respectively as 1:1, 1:2, 1:3, 1:5, 1:8 and 1:10), respectively compounding the copolymers with different components with the water-soluble chitosan in mixing to obtain various compounds with different components; adding 0.8-2.4% of polyethylene glycol diglycidyl ether in the compound solution as the crosslinking agent, reacting for 6 hours at 70 DEG C in the water solution, and crosslinking the chitson in the compound to prepare the compound hydrogel; meanwhile, selecting the compound with low crosslinking degree to tiling on a glass plate, drying at 45 DEG C to form the film. The gel and the film can be used as a drug sustained release carrier, a wound dressing and a medical abherent.

The invention provides a timber adhesive which comprises, by weight, 100 parts of vegetable gelatin, 80 to 160 parts of water, 10 to 15 parts of a modifier, 5 to 15 parts of borax, 0.2 to 0.4 part of polyepoxy glyceryl ether, 2 to 3 parts of glycerin, 3 to 5 parts of a filling material and 0.05 to 0.1 part of nipagin ester, wherein the vegetable gelatin is starch or dextrin, the modifier is tributyl phosphate or vinyl acetate, and the filling material is talcum powder, asbestos powder or titanium dioxide. According to the invention, the natural polymer vegetable gelatin is modified so as to prepare the formaldehyde-free adhesive, and the adhesive has the advantages of strong adhesiveness, mold forming performance and good dispersibility and overcomes the defects of low bonding strength and poor endurance of current aqueous formaldehyde-free timber adhesives.