8 results about "Halopropane" patented technology

In response to the current problems that epoxy resins are brittle after curing and easily cause the heat resistance of the resin cured product to decrease or induce phase separation after toughening, the present invention provides a method for preparing a new epoxy resin containing imide units, aiming to achieve good compatibility between imide and epoxy resin at the molecular level, and utilizing the chemical advantages of high rigidity, high strength, and high heat resistance of the imide unit to solve the scientific problems of epoxy resin being brittle after curing and the easy decline in thermal performance caused by toughening from the source of the problem. The invention uses commercial dibasic acid anhydride as the basic monomer unit, and prepares a bisimide diphenol compound by combining it with a variety of active monomers, and then reacts it with epoxy halopropane to obtain a new epoxy resin containing imide units. The new epoxy resin developed by the present invention has good solubility, outstanding heat resistance, excellent processability, good impact toughness after curing, can meet the requirements of advanced resin-based composite materials, and is expected to further promote and deepen the application of epoxy resin in high-precision and cutting-edge technology fields such as aerospace.

The invention relates to a fluorine-containing epoxy resin compound as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis. The preparation method of the fluorine-containing epoxy resin compound comprises the following steps: in the presence of alkali, dissolving a fluoroalkyl substituted 4, 4 '-diaminodiphenylmethane compound and epoxy halopropane in a reaction solvent, and reacting to obtain the fluorine-containing epoxy resin compound, or in the presence of alkali, the fluoroalkyl substituted 4, 4 '-diaminodiphenylmethane compound reacts with allyl halide to obtain the allylated fluoroalkyl substituted 4, 4'-diaminodiphenylmethane compound, and the allylated fluoroalkyl substituted 4, 4 '-diaminodiphenylmethane compound and an oxidizing agent are subjected to oxidation reaction under the action of a catalyst to obtain the allylated fluoroalkyl substituted 4, 4'-diaminodiphenylmethane compound. Or in the presence of alkali, dissolving the fluoroalkyl substituted methylene bisphenol compound and epoxy halopropane in a reaction solvent, and reacting to obtain the fluoroalkyl substituted methylene bisphenol compound. The preparation method disclosed by the invention is mild in reaction condition, simple to operate, high in yield, easy to purify, relatively low in cost and easy to obtain a large amount of raw materials.

This invention belongs to the field of environmental protection technology, specifically relating to a cleaning agent for treating oily sludge, its preparation method, and its application. The preparation method includes: a first substitution reaction of bis(3-trimethoxysilylpropyl)amine and a first epoxy halopropane in DMF to obtain an oiliness enhancer; a second substitution reaction of disodium 1,4-piperazine diethanesulfonate and a second epoxy halopropane in DMF to obtain a wateriness enhancer; and a first etherification reaction of sophorolipid with the oiliness enhancer in DMF, followed by a second etherification reaction with the wateriness enhancer to obtain the cleaning agent. The cleaning agent of this invention has the advantages of low dosage, good cleaning effect, and low oil content in the aqueous phase after cleaning.

The application discloses a preparation method of a biphenyldiol type epoxy resin, which comprises the following steps: uniformly mixing and heating and stirring biphenyldiol type raw materials, epoxy halopropane and a solvent, performing reaction after adding alkali, performing reaction again after temperature rising, performing water washing, removing the solvent, obtaining a crude product, performing refining, water washing, removing the solvent and drying on the crude product, and obtaining the biphenyldiol type epoxy resin. The biphenyldiol type epoxy resin prepared by the method has low melting temperature, low dielectric constant of resin curing product, good water resistance, high heat resistance, low total chlorine content of the resin, and good application prospect.

The invention belongs to the technical field of environmental protection, and particularly relates to a cleaning agent for oily sludge treatment and a preparation method and application thereof. The preparation method comprises the following steps: carrying out first substitution reaction on di (3-trimethoxysilylpropyl) amine and first epoxy halopropane in DMF (Dimethyl Formamide) to obtain an oily reinforcing agent; carrying out second substitution reaction on 1, 4-piperazine diethyl sulfonic acid disodium salt and second epoxy halopropane in DMF (Dimethyl Formamide) to obtain a water-based reinforcing agent; the sophorolipid and the oily reinforcing agent are subjected to a first etherification reaction in DMF, and then the sophorolipid and the aqueous reinforcing agent are subjected to a second etherification reaction to obtain the cleaning agent. The cleaning agent disclosed by the invention has the advantages of small dosage, good cleaning effect and low oil content of a water phase after cleaning.

The application provides a device and method for continuously synthesizing 1,3,5-triisopropylbenzene based on a microchannel, which uses alkylimidazole chloroaluminate ionic liquid as a catalyst, uses benzene and 2-halopropane as reaction raw materials, and uses a microchannel reactor to continuously and efficiently synthesize 1,3,5-triisopropylbenzene. The synthesis method fully utilizes the characteristics of the microchannel reactor in strengthening heat and mass transfer between fluids, makes the material flow in the microchannel form turbulent flow, realizes rapid micro-mixing of two materials, prevents local temperature from being too high by precise temperature control, strengthens the micro-reaction process, and can realize accurate control of the reaction temperature, reaction time and reactant ratio, thereby improving the utilization rate of the reaction raw materials and greatly improving the production efficiency. Moreover, the chloroaluminate ionic liquid can be separated and recovered by simple static phase separation after the reaction, and can be recycled. The synthesis method has the characteristics of continuous production, stable product quality, high mass transfer efficiency, mild reaction conditions, short reaction period, simple synthesis process and the like, conforms to the production concept of green, environmental protection, safety and high efficiency, and has a broad industrial development prospect.

The invention provides an amplified preparation method of a key intermediate of an estrogen receptor modulator, and belongs to the field of medical intermediates. The method comprises the following steps: by taking azetidine-3-one hydrochloride and 3-fluoro-1-halogenated propane as raw materials, reacting in the presence of alkali to obtain an intermediate 1; then carrying out reductive amination reaction on the intermediate 2 and 5-amino-2-methylpyridine to obtain an intermediate 2; reacting with nitrous acid ester in the presence of alkali to obtain an intermediate 3; and finally, reacting in the presence of acid to obtain the 5-((1-(3-fluoropropyl) azetidine-3-yl) amino) pyridinealdehydes. The method is simple and reliable in process and easy for industrial production; the generation amount of an isomer is reduced, and the reaction yield is improved.

This invention belongs to the field of petroleum extraction technology, specifically relating to a modified sophorolipid surfactant and its preparation method. The preparation method includes: in a weakly acidic solvent, under the action of a reducing agent, sodium benzaldehyde-2,4-disulfonate and a secondary amine undergo a Borch reduction amination reaction to obtain a sulfonated tertiary amine salt; next, in a weakly alkaline environment, the sulfonated tertiary amine salt undergoes a quaternization reaction with epoxy halopropane to obtain an etherifying agent; and finally, under alkaline conditions, the etherifying agent undergoes an etherification reaction with sophorolipid ester to obtain the modified sophorolipid surfactant. The modified sophorolipid surfactant of this invention has the advantages of simple synthesis process, high interfacial activity, and good crude oil viscosity reduction effect.