1232 results about "Glycidol" patented technology

PCT No. PCT/EP97/06364 Sec. 371 Date Sep. 25, 1998 Sec. 102(e) Date Sep. 25, 1998 PCT Filed Nov. 14, 1997 PCT Pub. No. WO98/25988 PCT Pub. Date Jun. 18, 1998A blend of epoxy-amine adducts are useful as emulsifiers of aqueous epoxy resin dispersions comprises (A-1) one or more epoxy-amine adduct(s) obtained by the reaction of (i) one or more aromatic, cycloaliphatic or novolac epoxy compound(s) and (ii) one or more amine-terminated polyalkylene glycol(s) having a molecular weight of from 700-5000 and an ethyleneoxide content of at least 60% by weight in an equivalent ratio of amine-terminated polyalkylene glycol(s) to epoxy compound(s) of from 0.01:1 to 0.9:1; (A-2) one or more epoxy-amine adduct(s) derived from the reaction of (i) one or more aliphatic epoxy compound(s) and (ii) one or more amine-terminated polyalkylene glycol(s) having a molecular weight of from 700-5000 and an ethyleneoxide content of at least 60% by weight in an equivalent ratio of amine-terminated polyalkylene glycol(s) to epoxy compound(s) of from 0.01:1 to 0.9:1; (B-1) aromatic, cycloaliphatic or novolac polyglycidyl ethers; (B-2) optionally, polyglycidyl esters of aromatic or cycloaliphatic polycarboxylic acids; and (C) optionally, at least one of reactive thinners, pigments, filler or other addtitives.

The invention provides a preparation method of a modified graphene oxide, comprising the following steps of: (a) reacting a phosphorus oxychloride compound, cyanuric chloride or diisocyanate with glycidol to obtain an intermediate product; and (b) dispersing graphite oxide in an organic solvent, dropwise adding to the intermediate product obtained through reaction, and reacting to obtain the modified graphene oxide. The invention also provides a preparation method of a composite material containing the modified graphene oxide, comprising the following steps of: dispersing the modified graphene oxide obtained through the preparation method in the technical scheme in an organic solvent, mixing the modified graphene oxide containing epoxide groups with epoxy resin oligomers and a polyamide curing agent, and curing to obtain the composite material containing the modified graphene oxide. In the composite material provided by the invention, the modified graphene oxide reacts with a resin substrate, is more uniform to disperse in the obtained composite material, and has better flame-retarding performance.

A method for sealing the peripheral edge surface of a laminated electrooptic device, wherein an aromatic glycidyl amine-based epoxy is used as a seal. Sealed devices are also disclosed.

The invention belongs to the field of chemical coatings, and specifically relates to a VOC (Volatile Organic Compounds)-free water-based epoxy curing agent. The curing agent comprises the following components in percentage by weight: 12-25% of epoxy resin, 15-30% of terminal epoxy glycidyl ether, 3-11% of polyether amine, 18-35% of an amine compound and 40-60% of deionized water. The preparation method of the curing agent comprises the following steps: preparation of an intermediate, epoxy-amine addition and dispersion by using deionized water. The preparation method of the curing agent is simple, the reaction process is easy to control, no organic solvent is used in the preparation process and the storage stability of the curing agent is good. A water-based epoxy zinc-enriched primer which is made of the curing agent has the characteristics of high drying speed, low applicable temperature, good film flexibility, high hardness, excellent corrosion resistance and the like, and can be applied to the fields such as ocean engineering, bridges, grade levels, high-speed rail facilities, wind power equipment, petrochemical engineering and heavy machinery.

A process for producing an epoxy silane oligomer including a reaction glycidoxy silane and/or cycloaliphatic epoxy silane having 2 or 3 alkoxy groups and, optionally, a copolymerizable silane other than glycidoxy and cycloaliphatic epoxy silane, with less than 1.5 equivalents of water in the presence of a catalyst, wherein said water is continuously fed during the reaction.

The invention relates to a water soluble polyester resin, which is synthesized according to the formula of (by weight percentage): 25%-30% of diol or polyol; 2%-4% of a heatproof functional monomer; 30%-40% of polycarboxylic acid or anhydride; 1%-6% of a sulfonate based hydrophilic monomer; 5%-7% of a glycidyl ester compound; 0.01%-0.2% of a catalyst; and 20%-30% of a cosolvent. The waterborne polyester amino baking varnish based on the water soluble polyester resin involved in the invention has the advantages of: (1) good storage stability; (2) good heat resistant performance; (3) excellent water resistance and rust resistance; and (4) safe and convenient use.

The invention mainly aims to provide a preparation method of electronic grade triglycidyl isocyanurate (TGIC). In order to realize the aim, the technical scheme in the invention is as follows: the preparation method of electronic grade TGIC comprises the following steps: a) adding epichlorohydrin, cyanuric acid, quaternary ammonium salt phase transfer catalyst and water according to a ratio, heating and stirring to react; b) adding flake caustic soda in the reaction system obtained in the step a) to react, then performing pressure filtration to remove solid salt; and c) performing vacuum distillation after the reaction, then using a high vacuum film evaporator to distill and remove epichlorohydrin, crystallizing the coarse product, centrifuging, grinding, and drying to obtain electronic grade TGIC. According to the treatment method provided by the invention, the purity of the TGIC product can be effectively increased, and the purity of TGIC can be increased from 92% to more than 99%, which reaches the electronic grade.

The invention discloses long-chain branched polyester and a preparation method thereof. The long-chain branched polyester is obtained by carrying out esterification and polycondensation on a diacid component A, a diacid component B and a bifunctional branching agent component C such as biglycidyl ester, diglycidyl ether or glycidol and the like. According to the invention, a non-toxic bifunctional branching agent is directly adopted to in situ generate branching points; the preparation method is unique, preparation process is simple and environmentally-friendly, branching reaction is uniform,branching degree is easy to regulate and control, and the high molecular weight long-chain branched polyester can be prepared; and the preparation method can be used for preparation of non-degradablepolyester and preparation of biodegradable polyester, thereby being beneficial to the realization of commercialization. The long-chain branched polyester has the characteristics of long-chain branching and large molecular weight in structure and is beneficial to increase of melt strength and improvements of blow molding and foaming processing performance.

The invention relates to an epoxy acrylate prepolymer resin and a preparation method thereof and an application in a photocurable coating. The prepolymer has the characteristics of low viscosity, good flexibility, good adhesion and basic colorlessness and can be used for preparing various photocurable coatings and coating various base materials, such as bamboo floor. The epoxy acrylate prepolymer resin is prepared by epoxy resin and methacrylate under the action of the catalyst through ring-opening esterification and is characterized in that the prepolymer resin comprises the following components according to parts by weight: 100 parts of epoxy resin, 35-50 parts of methacrylate, 2-8 parts of long chain saturated dicarboxylic acid, 12-25 parts of polyethylene glycol, 8-12 parts of diglycidyl ether, 0.01-0.05 parts of antioxidant, 0.2-0.5 parts of catalyst and 0.005-0.01 parts of polymerization inhibitor. The viscosity reduction, toughening and modification are carried out for the epoxy acrylate prepolymer resin, the flexibility and strength are improved, the viscosity of the prepolymer resin is effectively reduced, and the prepolymer resin is applicable for preparing the photocurable coatings.

The invention relates to a machinable solid buoyancy material and a preparation method thereof. The machinable solid buoyancy material belongs to a functional nonmetallic material and comprises the following components in part by mass: 100 parts of epoxy resin, 15 to 55 parts of amine epoxy curing agent and 30 to 130 parts of glass beads, wherein the epoxy resin is bisphenol S type epoxy resin or glycidol epoxy resin; and the amine epoxy curing agent is polyamide 650, polyamide 651, tertiary nitrogen type organic amine or quaternary nitrogen type organic amine, bismaleimide, low molecular weight polyacrylamide, imidazoles or organic acid anhydride compounds. The preparation method comprises the following steps of: heating the epoxy resin and the amine epoxy curing agent, weighing the epoxy resin and the amine epoxy curing agent, blending and stirring the epoxy resin and the amine epoxy curing agent, adding the glass beads, stirring again, kneading the materials, after taking the material out, coating a mould release agent on the inner wall of a die and sticking mould release paper; filling the material into the die; covering by using a cover; curing the die in a drying oven; and separating the material from the die on a demoulding machine. The machinable solid buoyancy material can meet the requirements on underwater projects, permanent buoys and the like.

The invention relates to a nitrogen, silicon and chlorine thee-element synergic flame retardant tri{2-chloro-3-[tri(chloroethoxy)silicon acyloxy]propyl}isocyanurate compound and a preparation method thereof. The structure of the compound is shown as a formula in the specification. The preparation method comprises the following steps: dripping organic solvent solution of triglycidyl Isocyanurate into silicon tetrachloride, and reacting for 4 to 6 hours at a temperature of between 50 and 70 DEG C; and cooling to 30 DEG C, introducing ethylene oxide under the liquid surface, reacting for 2 to 3 hours at a temperature of between 45 and 55 DEG C, and purifying to obtain the tri{2-chlor-3-[tri(chloroethoxy)silicon acyloxy]propyl}isocyanurate. The compound has good flame retardant plasticization, and is suitable for flame retardant plasticizer such as polyvinyl chloride, polyurethane, epoxy resin, unsaturated resin and the like; and the method has simple production process and low cost, and is easy for industrial production.

Treatment of anion exchange materials containing hydroxyl containing moieties in the beta position relative to the quaternary center in the hydroxide form with glycidol substantially alters the selectivity of the anion exchange material. Furthermore, sequential treatments of first a hydroxide containing solution to put the anion exchange material in the hydroxide form followed by treatment with glycidol in an alternating sequence progressively changes selectivity in a predictable manner allowing facile manipulation of selectivity. Unique to the selectivities achievable with this chemistry is the ability to reverse the elution order of sulfate and carbonate. With all other known systems, carbonate elutes ahead of sulfate and sometimes compromises the ability to quantitate sulfate. With glycidol treatment, carbonate can be moved after sulfate which eliminates interference issues for samples containing significantly more carbonate than sulfate. This modification is useful for columns operated with a hydroxide or carbonate eluent system.

The invention relates to a method for preparing an ultraviolet(UV)-curable polyisocyanate modified superbranched epoxy acrylate, which comprises the following steps of: heating maleopimaric acid tri glycidyl ester, maleopimaric acid and a catalyst for esterification reaction to obtain rosin-based superbranched resin; cooling, and adding epoxy chloropropane, water and a catalyst for reaction to obtain superbranched epoxy resin; adding crylic acid, a catalyst and a polymerization inhibitor for reaction to obtain superbranched epoxy acrylic resin; and reacting the superbranched epoxy acrylic resin with ethylene glycol methacrylate terminated para toluene diisocyanate, a catalyst and a polymerization inhibitor to obtain the final product. Compared with the prior art, the method has the advantages that: rosinyl is introduced into superbranched polyester, and the hardness, strength and other special properties of the resin are improved and the curing speed is improved by utilizing the special rigid condensed ring structure of the rosin. The cured product has higher ultraviolet resistance; and by adjusting the using amount of raw materials, superbranched polyester for ultraviolet-curable coatings meeting different coating requirements can be prepared.

An epoxy resin composition having components (A), (B), (C), and (D), wherein the epoxy resin composition has a viscosity at 40° C. of about 1×10³ to about 1×10⁴ Pa·s, a curing start temperature of about 90 to about 110° C., and a minimum viscosity at the curing start temperature of about 2 to about 20 Pa·s, wherein the components (A), (B), (C), and (D) are as follows: (A) About 60 weight parts or more of a tetraglycidyl amine type epoxy resin per 100 weight parts of the epoxy resin blend; (B) Dicyandiamide; (C) Diaminodiphenyl sulfone and (D) Urea compound.

The present invention provides thermosetting polyester powder or epoxy-containing acrylic powder compositions comprising one or more curing agent adduct of a polyester, preferably a linear polyester, wherein when the said curing agent adduct comprises an adduct of one or more polyepoxy compound, the said polyepoxy compound has an average of 2.01 or more epoxy groups per molecule. The compositions provide flexible coatings, films and capstocks having improved impact resistance, especially for use in automotive and architectural applications. To improve impact strength of coatings and films provided thereby, the compositions comprise curing agent adducts of one or more polyepoxy compound chosen from triglycidyl isocyanurate (TGIC) and triglycidyl trimellitate with a carboxyl functional polyester having a carboxyl equivalent weight of 602 or more. In addition, to further improve the impact strength of coatings and films provided thereby, the compositions may comprise one or more adjunct curing agent, such as glycoluril, an aminoplast resin or a blocked isocyanate.

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 relates to a preparation method of polyester resin capable of being used for an outdoor dry mixed extinction powder coating. The preparation method is characterized by comprising the following steps of: adding polybasic acid or anhydride, polyatomic alcohol, a catalyst and an antioxidant according to a mass ratio into a reaction kettle for mixing; introducing nitrogen; heating to a temperature of 100-300 DEG C until a reaction solution is completely clarified to obtain A-component polyester resin; adding polybasic acid or anhydride, polyatomic alcohol, a catalyst and an antioxidant into the reaction kettle to be mixed; introducing nitrogen; heating to a temperature of 100-300 DEG C until a reaction solution is completely clarified; and carrying out vacuum condensation polymerization on the clarified reaction solution until an acid value is 10-50 mg KOH/g and a viscosity is 30-100 P to obtain B-component polyester resin; mixing the A-component polyester resin with triglycidyl isocyanurate, barium sulfate, titanium dioxide, a flatting agent, a brightener and benzoin according to a mass ratio to obtain a powder coating I; mixing the B-component polyester resin with triglycidyl isocyanurate, barium sulfate, titanium dioxide, a flatting agent, a brightener and benzoin to obtain a powder coating II; and mixing the powder coating I with the powder coating II to obtain the powder coating with low brightness. The preparation method has the advantages of stable extinction effect of outdoor dry mixed extinction polyester, better coating property and the like.

The present invention discloses a phosphorus-nitrogen co-reactive flame retardant used for polyurethane, a preparation method therefor and an application thereof. The method comprises: adding epoxy chloropropane and alcohol amine compound into an organic solvent; carrying out an ring-opening and ring-closing reactions in a reaction molar ratio; and filtering, and removing the solvent under reduced pressure, thereby obtaining a reaction intermediate glycidol alcohol amine which is viscous liquid at room temperature; and carrying out a reaction between DOPO and an epoxy group to form a reactive flame retardant with end groups as double hydroxyl groups and a DOPO flame retardant group. The flame retardant has a phosphorus-nitrogen co-reactive flame retardant effect, is environmentally-friendly,non-toxic, low in smoke, and can be used as a chain extender to apply to the preparation for a structural flame retardant polyurethane material, so that the preparation process is simple, and the flame-retardant effect is remarkable. The polyurethane material synthesized by using the flame retardant has good mechanical properties, an oxygen index increased to 27-29%, and a flame retardant grade up to UL94 V-0.

This invention provides an allyl glycidyl ether industrialized preparation method. It uses Boron trifluoride diethyl ether comoles compound as catalyst, propylene alcohol and epichlorohydrin as raw material, pass through the condensation ring-opening reactions generate 1-chloro-2-hydroxy-3- allyloxy propane, then under alkaline conditions through close-loop to obtain allyl glycidyl ether; the product yield rate is 78%, the content of 98%.

The invention relates to a reactive dye salt-free dying process of cotton fabric. The reactive dye salt-free dying process of the cotton fabric comprises the following steps: (1) performing grafting reaction on glycidol trimethyl ammonium chloride and an amino-terminated hyperbranched compound to obtain amino-terminated hyperbranched compound quaternary ammonium salt; (2) placing the cotton fabric in the solution of the amino-terminated hyperbranched compound quaternary ammonium salt, performing dipping treatment at 20 to 90 DEG C for 20 to 80 minutes, taking out the cotton fabric and completely washing the cotton fabric for later use; (3) placing the modified cotton fabric into reactive dye and dyeing at normal temperature; and (4) washing after dyeing is finished, adding soap flakes of 3 g/L, performing soap boiling at 90 to 100 DEG C for 5 to 10 minutes and airing. The reactive dye salt-free dying process of the cotton fabric has the benefits that after the cotton fabric is modified, the dyeing property is obviously improved, the dyeing ratio is increased, the amount of dyeing waste water is reduced, and the environment is protected. Compared with the unmodified cotton fabric subjected to traditional salt dyeing, the cotton fabric has higher K/S value and achieves better effects on color fastness to rubbing and color fastness to washing.