42 results about "Trimethylene oxide" patented technology

A radio-sensitized resin composition comprises a copolymer (A) of (a1), (a2) and (a3), 1,2-diazido quinone compound (B), and a siloxane oligomer (C) with functional group for performing cross linking reaction with the copolymer (A) by heat, wherein the (a1) is unsaturated carboxylic acid and/or unsaturated carboxylic acid anhydrides, the (a2) is unsaturated compound containing epoxy group and/or trimethylene oxide group, and the (a3) is unsaturated compound except the (a1) and (a2). The radio-sensitized resin composition with high rediation sensibility has development allowance for forming good pattern shape even though exceeding the optimal developing time during developing and can easily form pattern shaped film with excellent compliance.

The invention provides a process for synthesis of triisopropanolamine by using liquid ammonia and trimethylene oxide as raw material, water as catalyst, stock preparing by the mol ratio of liquid ammonia : trimethylene oxide = 1 : 3.00 - 3.05, charging deionized water in one time, charging liquid ammonia and trimethylene oxide in two times, fully stirring, sustaining the pressure <0.5 MPa, sustaining reaction temperature between 20-75 deg. C for 1.0-3.0 hours, decompressing for dehydration till the water content is less than 5%.

The present invention relates to one kind of fluoric super branched-grafted block polymer, and features that the polymer has core-arm structure comprising core of super branched poly(3-ethyl-3-methyol trimethylene oxide) and arm of alkyl substituted amino methacrylate and fluoric methacrylate block polymerized structure. The fluoric super branched-grafted block polymer is prepared through an oxygen ion initiated polymerization process. The fluoric amphiphilic super branched copolymer of the present invention has double temperature and pH responding performance and lowered surface energy, and the preparation process has fast reaction speed, high conversion rate and high product purity.

A process for synthesizing the cyclic carbonate features the catalytic cyclizing addition reaction between Co2, epoxy compound and the catalyst prepared from lewis acid-metal compound and hexalkyl guanidine salt at 100-150 deg.C for 0.5-5 hrs.

The invention relates to a preparation method of fudosteine, which comprises the following steps: by using L-cysteine and trimethylene oxide as raw materials, heating under alkaline conditions to promote the completion of the reaction, adding 95% ethanol into the product to precipitate, and recrystallizing to obtain the fine product fudosteine, wherein the product yield is greater than or equal to 90%, the HPLC (high performance liquid chromatography) purity is greater than or equal to 99.5%, and the maximum single impurity content is less than or equal to 0.1%. The whole process is easy to control, simple to operate and suitable for industrial production, and is a synthesis route capable of satisfying the demands of the market for fudosteine active pharmaceutical ingredients.

The invention discloses a method for preparing 3-ammoniac methyl-3-methyl trimethylene oxide. The method takes 3-chloromethane radical-3-methyl trimethylene oxide (CMMO) and liquid ammonia as raw materials and comprises an ammoniation reaction and a post-treatment process. The method comprises the following steps: adding the CMMO into a high-pressure reaction kettle, using high-purity N2 to replace system air, using high-purity nitrogen to press the liquid ammonia into the reaction kettle, stirring and reacting for 8-12h at the temperature of 75-90 DEG C and the pressure of 3.2-4.0MPa; after finishing the ammoniation reaction, cooling the materials, taking out the excess liquid ammonia, adding an organic solvent into the reaction kettle, stirring, cooling the materials to 0-5 DEG C, filtering to remove existing crystals, collecting filtrate, evaporating to remove most of the solvent at normal pressure, cooling the materials to 0-5 DEG C again, filtering to remove the crystals in the materials, distilling the filtrate by depressurization and collecting distillates at 42-46 DEG C. A product obtained by the method is an organic intermediate for synthesizing medicines and pesticide.

The present invention discloses a method for application of 1,4-cyclohexanedimethanol diglycidyl ether diacrylate as an acrylate prepolymer in stereolithography rapid-prototyping photosensitive resin preparation. The prepared photosensitive resin mainly comprises the following raw material components, by mass, 15-65 parts of 1,4-cyclohexanedimethanol diglycidyl ether diacrylate, 5-55 parts of an epoxy resin, 5-55 parts of trimethylene oxide, 1-12 parts of a cation type photopolymerization initiator, and 1-10 parts of a free radical type photopolymerization initiator. The prepared photosensitive resin has good photosensitivity and a critical exposure amount Ec of less than 16.0 mJ/cm<2>. After the photosensitive resin is subjected to stereolithography prototyping, precision of the prototyping part is high, a buckling factor CF (6) of the prototyping part is within a range of +-0.01, and CF (11) of the prototyping part is within a range of +-0.03. With the prepared photosensitive resin, parts with any complex shapes and high precision can be directly manufactured. In addition, the 1,4-cyclohexanedimethanol diglycidyl ether diacrylate has characteristics of moderate viscosity, low odor and good cured product flexibility, such that the 1,4-cyclohexanedimethanol diglycidyl ether diacrylate can be adopted as an acrylate prepolymer to replace a bisphenol A type epoxy acrylate to be applied in stereolithography rapid-prototyping photosensitive resin prepartion.

This invention relates to 6-(aroxylmethyl)-2-aryl-6,7-dihydrogen-4H-pyrazole[5,1-c][1,4]oxazine-4-ketone derivatives with a general structure shown in formula I, where, X and Y are H, linear or branched C1-4 alkyl, alkoxyl, halogen or nitryl. This invention also relates to the method for preparing the compounds, which comprises: mixing 3-aroxyl-1,2-epoxypropane, 3-aryl-1H-pyrazole-5-ethyl formate and K2CO3 acid captor, and refluxing in acetonitrile to obtain 1-(2-hydroxyl-3-aroxylpropyl)-3-aryl-1H-pyrazole-5-ethyl formate derivatives, hydrolyzing in alcohol solvent in an alkaline condition to obtain 1-(2-hydroxyl-3-aroxylpropyl)-3-aryl-1H-pyrazole-5-formic acid derivatives, and lactonizing under the catalysis of acid to obtain the products.

The invention belongs to a method for preparing propoxylation neopentylglycol diacrylate ester, comprising the steps as follows: (1) epoxy propane, neopentylglycol, acrylic acid, catalyst, solvent and polymerization inhibitor are put into a reaction kettle to form a mixture; (2) a valve is opened to slowly heat the mixture, and the temperature is controlled and maintained at 60-90 DEG C for a 20-40min reaction; (3) the mixture is continued to be heated to the temperature of 80-120 DEG C to react for 3-4h, then reflow is carried out for 5-7h, and then the reaction is finished; (4) soda water solution and sodium chloride water solution are added into the mixture, and after washing, quiescence and demixing the upper organic phase is extracted; (5) the upper organic phase is separated from the solvent; (6) and then cooling and pressing are carried out to obtain the end product. The method has simple process, high yield coefficient, good activity and flexibility, low color intensity, shrinking percentage and irritation, and good quality, and produces few by-products or little waste water.

The invention discloses cis-butenedioic acid di-2-ethylhexyl ester, a method for synthesizing the same and application of the cis-butenedioic acid di-2-ethylhexyl ester to preparing polycarboxylic acid water reducing agents. The cis-butenedioic acid di-2-ethylhexyl ester, the method and the application have the advantages that maleic acid monoester is generated from maleic anhydride by means of alcoholysis, then the maleic acid monoester is polymerized with ethylene oxide or propylene epoxide and is polymerized with ethylene oxide to generate novel diester which is the cis-butenedioic acid di-2-ethylhexyl ester, acrylate can be substituted with the cis-butenedioic acid di-2-ethylhexyl ester for preparing the polycarboxylic acid water reducing agents, accordingly, the slump retention performance of the polycarboxylic acid water reducing agents can be improved, and low slump loss of premixed concrete in two hours can be guaranteed; integral reaction, structures and molecular weights canbe controlled, the reaction can be smoothly and steadily carried out, water production can be prevented, the cis-butenedioic acid di-2-ethylhexyl ester is green and environmentally friendly and is high in yield, preparation procedures are simple, and industrial production can be facilitated. A structural formula of the cis-butenedioic acid di-2-ethylhexyl ester is shown. An R in the structural formula represents methyl or ethyl or propyl or isopropyl or normal-butyl or diethylene glycol mono-methyl ether, an m and an n in the structural formula are integers, the m ranges from 0 to 8, and the nranges from 1 to 15.

The medicine packaging composite material has support layer and CO2 copolymer layer as blocking layer. The CO2 copolymer may be copolymer of CO2 and epoxy ethane, epoxy propane, cyclohexane oxide, styrene oxide, epoxy propane-epoxy cyclohexane, or expoxy propane-epoxy styrene. The three-layered and double-layered composite material is produced by means of the thermosol performance of CO2 copolymer and through rolling CO2 copolymer layer at 80-130 deg.c and combining with support layer. The composite material has excellent blocking performance, is degradable, transparent, easy to form and low in cost, and may be used in disposable packing of medicine.

The invention discloses the structure of N-alkyl-N-[2-hydroxyl-3-(aryloxy) propalkyl]-2-(arylthioyl) benzylamine with anti-depression activity, its preparing process and use, wherein the preparing process comprises reacting 1 mol of aryl phenol with 1-10 mol of epioxychloropropane in 1-5 mol aqueous solution of potassium carbonate or sodium carbonate at the presence of tetra butyl ammonium bromide for 12-48 hours under room temperature, thus obtaining 3-aryloxy epioxypropane, then subjecting 1 mol of N-alkyl-2-(arylthioyl) benzylamine and 1-5 mol of 3-aryloxy epioxypropane to backflow reaction for 5-48 hours in anhydrous alcohol or absolute methanol. The compounds can be in existence by the form of free alkali or salt for preparing medicaments for resisting depression. The advantages of the invention include simple preparing process and easy operation.

The invention discloses an antistatic polyurethane elastomer. The antistatic polyurethane elastomer comprises the following components in part(s) by mass: 1-2 part(s) of ethyltrimethoxysilane, 50 parts of epoxy propane-type polyether polyol, 0.5 part of N,N-bis[3-(dimethylamino)propyl]-N',N'-dimethyl-1,3-propanediamine, 1 part of sodium oleoyl amino acid, 0.3 part of an inhibitor, 2 parts of dimethyl octadecyl hydroxyethyl ammonium nitrate, 15 parts of toluene di-cyanate ester, 5 parts of triethylene glycol bis-[3-(3-tert-butyl-4-hydroxy-5-methyl phenyl)propionate], 31 parts of polyether polyol and 5 parts of diethyltoluenediamine. The antistatic polyurethane elastomer has good physical and mechanical properties and is high in antistatic capability.

The invention discloses a modified multi-block allyl amine demulsifier and a preparation method thereof. The preparation method comprises the following steps: adding allyl amine as a starting agent and a catalyst in a reaction container, heating to the temperature of 115-145 DEG C, controlling the pressure in the reaction container to be 0.4 MPa or below, feeding ethylene oxide, fully reacting andthen vacuumizing; then feeding propylene epoxide and epoxybutane under the same conditions, fully reacting and then vacuumizing to obtain a primary product; and dissolving the primary product in an organic solvent, then adding the primary product, an initiator and a surfactant in a reactor together, heating to the temperature of 50-80 DEG C, dropwise adding alpha-methyl trimethoxysilane while stirring, controlling the dropwise adding of the alpha-methyl trimethoxysilane to be completed within 0.5-1.5 hours, keeping reacting for 0.5-2 hours, distilling under reduced pressure and removing the solvent to obtain the final product.