763 results about "Glyceryl Ethers" patented technology

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 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.

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.

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.

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 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.

An intumescent coating in the form of an initially liquid coating which cures to a solid and adheres to a substrate. The coating includes a flexible thermosetting epoxy, such as diglycidyl ether of bisphenol-A (DGEBA), with an aliphatic amine curing agent, expandable graphite flakes with reagent chemicals that react upon heating and decompose into gaseous products, and fumed silica. In the presence of heat or flame, an intumescent layer develops at the coating surface, insulating the substrate. The coating is found to add intumescent characteristics which provide heat resistant and fire retardant qualities.

The present invention provides a cosmetic composition, comprising 0.1 to 5 mass % of a lipopeptide compound, and 0.1 to 20 mass % of a polyoxyethylene glyceryl ether fatty acid ester and/or a polyoxyethylene sorbit fatty acid ester. The cosmetic of the present invention, with an extremely low skin irritating property, ensures high skin comfort and stability. In particular, when used as a cleansing cosmetic, it also exhibits an excellent washability.

The invention relates to N, N-dimethyl dodecyl terminal quaternization modified silicone oil, and a preparation method and application thereof. The preparation method comprises the steps of reacting octamethyl cyclotetrasiloxane and tetramethyl dihydro disiloxane according to the proportion in the presence of an acid catalyst so as to prepare double-terminal hydrogenous silicon oil; carrying out hydrosilylation reaction on the silicon oil and glycidyl allyl ether or allyl polyoxyethylene polyoxypropylene glycidyl ether to obtain epoxy-terminated silicone oil; and finally, carrying out aminolysis ring-opening reaction on the epoxy-terminated silicone oil and N, N-dodecyl tertiary amine to obtain the terminal quaternization modified silicone oil. The silicone oil is used as a textile finishing agent for treating cotton fabrics, so that the cotton fabrics are endowed with an antibacterial property, meanwhile, the softness of the cotton fabrics can be also improved, and the hydrophilia is better at the same time.

The invention discloses a papermaking additive composition and a preparation method thereof. The papermaking additive composition is prepared from the following components in parts by weight: 30-35 parts of polyoxypropyl glyceryl ether, 20-30 parts of stearin, 20-30 parts of glass fibers, 10-15 parts of calcium carbonate whisker, 10-15 parts of polyhexamethylene guanidine hydrochloride, 3-5 parts of 4,4'-diphenylmethane-diisocyanate and 2-5 parts of sodium hydrogen disulfate. According to the papermaking additive composition, bad bubbles in the paper pulp preparation process can be eliminated, and pulp can be well dispersed, so that the paper has the excellent water-retaining property, antibacterial property and mechanical strength and can be preserved for a long time.

The invention relates to a synthetic method of chlorobenzene glyceryl ether. 3-chloro-1,2-propanediol and parachlorophenol are directly used as raw materials, high-corrosion chemical solvents are not introduced, a reaction is simple, the yield is high, and the yield can reach 95 percent or more under the optimal reaction condition. By adding a few phase transfer catalysts, the reaction can be promoted to be conducted quickly and effectively, and the reaction time can be shortened by at least two hours.

The invention discloses aliphatic hydroxyl compound modified solid epoxy resin as well as a preparation method thereof, belonging to the technical field of toughened and modified epoxy resin. According to the invention, the bisphenol A glycidyl ether epoxy resin in a modified molecular main chain structure is synthesized by using bisphenol A, epoxy chloropropane and the aliphatic hydroxyl compound as raw materials. Compared with common unmodified bisphenol A glycidyl ether epoxy resin, the obtained epoxy resin has the characteristics of low softening point, excellent processing performance and good toughness, and meanwhile, the production cost of the solid epoxy resin is further lowered to a certain extent by adopting an appropriate amount of the aliphatic hydroxyl compound. The bending strength of the condensate of the epoxy resin cured by polyester resin can be increased by over 10%. The impact performance of the prepared powder coating is over 8%.