70 results about "Xylidine" patented technology

The invention provides a method for separating and purifying edoxaban by chromatography. The separation method is chromatography, and the chromatographic conditions are as follows: the filler is an amylose-tri(3,5-xylylcarbamate) bonded silica gel, and the mobile phase is selected from a mixed solution comprising a non-polar solvent and a polar solvent. By selecting the chromatographic conditions, the edoxaban and seven enantiomers and nonenantiomers thereof can be simultaneously separated, and thus, the method has the characteristics of high speed, high simpleness, high efficiency and the like.

The invention discloses a red phosphorescence CuIN2P-type light emitting material with cuprous complexes and a method for manufacturing the red phosphorescence CuIN2P-type light emitting material. Cuprous iodide and ligands carry out coordination reaction to obtain the phosphorescence complexes of the red phosphorescence CuIN2P-type light emitting material. A molecular structural formula of the red phosphorescence CuIN2P-type light emitting material is CuI(2-PBO)(TXP-2, 5), and the 2-PBO and the TXP-2, 5 in the formula respectively represent electrically neutral ligand 2-(2-benzoxazole) pyridine and (2, 5-xylyl) triphosphine. The red phosphorescence CuIN2P-type light emitting material and the method have the advantages that small molecules of the complexes are easy to purify, and the complexes are high in light emitting efficiency and can be easily dissolved by organic solvents; liquor of the cuprous iodine and liquor of the ligands directly carry out mixed reaction to obtain the red phosphorescence CuIN2P-type light emitting material, accordingly processes are simple and convenient, equipment is simple, raw materials are easily available, and the red phosphorescence CuIN2P-type light emitting material is low in cost; the ed phosphorescence CuIN2P-type light emitting material not only can be used as a photoluminescence red light material, but also can be used as a phosphorescence material for a light emitting layer in an electroluminescence device with multiple layers of organic materials, and the like.

Disclosed is a polyamide-based laminated biaxially-stretched film which comprises a resin layer (layer A) mainly composed of a polyamide polymer having a metaxylylene group and a resin layer (layer B) mainly composed of an aliphatic polyamide resin and laminated on at least one surface of the resin layer (layer A), and which has a specific small number of pinholes and a specific oxygen permeability, wherein the polyamide polymer having a metaxylylene group comprises metaxylylene diamine or a mixed xylylene diamine component composed of metaxylylene diamine and paraxylylene diamine as the main diamine component and an alpha, omega-aliphatic dicarboxylic acid having 6 to 12 carbon atoms as the main dicarboxylic acid component.

The present invention provides an electric insulating oil composition that has excellent low temperature properties, hydrogen gas absorbability and giving less adverse effect on living bodies and comprises [A] 1,1-diphenylethane in an amount of 30 to 70 percent by mass, [B] at least one or more component selected from 4 components that are (a) 1-phenyl-1-methylphenylethane, (b) 1-phenyl-1-xylylethane, (c) 1-phenyl-1-ethylphenylethane and (d) benzyltoluene in a total amount of 30 to 70 percent by mass, and [C] 1,2-diphenylethane in an amount of 0.1 to 2 percent by mass and/or diphenylmethane in an amount of 0.1 to 13 percent by mass.

The invention discloses a method for preparing 5-amino-2-chlorine-N-(2,4-xylyl)-benzsulfamide of which the structure is as shown in a formula (II) in a water phase, which comprises: performing catalytic hydrogenation reaction on 5-nitryl-2-chlorine-N-(2,4-xylyl)-benzsulfamide of which the structure is as shown in a formula (I) in a water solvent in a closed reactor under the action of a supported catalyst under the condition of stirring, and preparing target products, wherein the temperature of the catalytic hydrogenation reaction is between 30 and 150 DEG C, and the pressure in the closed reactor is between 0.1 and 4.0 MPa; a supporter of the supported catalyst is gamma-Al2O3; and active ingredients of the gamma-Al2O3 are one or complexes of more than two of Pa, Ru, Pt, Ni, Fe, Co, Sn, Ge, Al, Zn, Ce and Au in any proportion, or complexes of non-metal B or P and metals in any proportion. The method is performed in the water phase, and has the advantages of high conversion rate, high selectivity, mild reaction conditions, simple technique, clean production and no pollution.

The invention relates to an automobile synthetic diesel oil and a preparation method thereof, belonging to the technical field of synthetic chemical fuel. The synthetic gasoline contains methyl alcohol, methylbenzene, stearic acid, fatty acid methyl ester, potassium chlorate, zinc peroxide, nitromethane, cyclohexane, glyceride, octane number regulator and xylidine. The automobile synthetic dieseloil has the characteristics of good volatility and stability, high calorific value, no carbon deposit, low cost, etc, thus completely achieving the properties of the existing diesel oil and being an ideal substitute product.

The disclosure herein provides a composition compound of formula 1. The disclosure also provides a method of synthesizing the compound of formula 1. The compound of formula 1 or its pharmaceutical acceptable salts, as well as polymorphs, solvates, and hydrates thereof may be formulated as pharmaceutical composition to be used for treatment of pain. The pharmaceutical composition of compound of formula 1 or the final compound may be formulated for non-invasive peroral, topical (example transdermal), enteral, transmucosal, targeted delivery, sustained release delivery, delayed release, pulsed release and parenteral methods. Such compositions may be used to treat chronic pain manifested with chronic diseases or its associated complications. The compound of formula 1 may also be offered as a kit.

The invention discloses a method of preparing unsaturated polyester putty for automobile repair, which includes: firstly, proportionally adding air-dry water based unsaturated polyester resin into a reactor, mixing under rotation at speed of 350-450r/min, respectively adding cobalt iso-octoate, xylidine and 4-tert-butylcatechol prior to mixing for 10-15 minutes, then adding white carbon black and titanium dioxide prior to mixing under rotation at 600-650r/min for 10-15 minutes, adding -325-mesh pulvistalci, -325-mesh diatomite powder, gaseous SiO2 powder, palygouskite and ultramarine prior to mixing under rotation at 950-1000r/min for 35-45 minutes, and using a colloid mill to grind the mixture to obtain finished base stock; secondly, proportionally adding cyclohexanone peroxide, benzoyl peroxide, acetone and white carbon black into the reactor prior to mixing under rotation at 600-800r/min for 15-25 minutes, and grinding the product of mixing into paste to obtain finished curing agent; and thirdly, well mixing the prepared base stock and the curing agent according to a proportion 100:2.

The invention discloses a preparation method of Eltrombopag used for treating idiopathic thrombocytopenic purpura. The chemical name of Eltrombopag is 3‑{(2Z)‑2‑[1‑(3 ,4‑xylyl)‑3‑methyl‑5‑oxo‑1,5‑dihydro‑4H‑pyrazole‑4‑ylidene]hydrazino}‑2‑hydroxy‑3‑biphenylcarboxylic acid‑ 2-amino ethanol salt; the preparation process of the present invention is simple, the raw material is easy to get, avoids the use of highly toxic methyl iodide, is economical and environmentally friendly, is conducive to the realization of industrialization, can promote the economic and technological development of Eltrombopag raw material medicine, and reduces the production cost. cost, suitable for mass production.

The invention discloses a preparation process of bupivacaine hydrochloride. According to the specific scheme, N-(2,6-xylyl)-2-piperidine formamide is adopted as a starting raw material and dissolved in methylbenzene, then a deacidification agent, a phase transfer catalyst and bromobutane are added, certain temperature is kept for reacting, and after the reaction is finished, filtering is carried out at room temperature, and a bupivacaine solution is obtained; the bupivacaine solution is acidized with an acidification agent, aftertreatment is carried out, and bupivacaine hydrochloride is obtained through drying. According to the preparation process, the solvent can be recycled, the production cost can be reduced, environmental pollution can be reduced, meanwhile, byproducts of other products of the company are fully utilized, refuse reclamation is achieved, and generated waste gas, waste water and industrial residues are reduced.

The invention relates to a compound for manufacturing watermark in a textile sheet material and the corresponding composition, material, method and use. The compound for manufacturing a watermark in a textile sheet material of formula

wherein

X is hexamethylene, trimethylhexamethylene, isophorone, dicyclohexylmethyl, tetramethylxylylene, tetramethylenexylene, xylylene, trimethylhexamethylene, hydrogenated 4,4′-diphenylmethylene, 1,12-dodecylene, 1,5-2-methylpentylene; 1,4-butylene; 1,4-cyclohexylene, or a compound of formula

5

• R₁ is a linear aliphatic C1-C12 alkyl radical or a branched aliphatic C3-C18 alkyl radical
• R₂ is a radical of formula

wherein

• R₄ is methoxy or ethoxy
• R₅ and R₆ are H, methoxy, ethoxy, methyl or ethyl
• R₇ is cyclohexyl, phenyl or aliphatic C3-C6 alkyl
• R₃ is a linear aliphatic C1-C12 alkyl radical or a branched aliphatic C3-C18 alkyl radical
• n is 0 or 1.

The invention discloses a composite clean liquid fuel and a production method thereof. The composite clean liquid fuel is prepared from methanol, water, alcohol, acetic acid, natron, aqua ammonia, xylidine, sodium nitrate, and dicyclic diolefine iron. The production method comprises the following steps:1, adding the methanol into the dicyclic diolefine iron, stirring uniformly and mixing fully; 2, adding the natron into the water and stirring uniformly; 3, enabling the two liquids produced in the step 1 and the step 2 to dissolve each other and stirring, and then adding the acetic acid into the liquids and stirring; 4, stirring to enable the aqua ammonia, the xylidine and the sodium nitrate to dissolve one another in sequence, adding the aqua ammonia, the xylidine and the sodium nitrate into the alcohol and stirring uniformly; 5, enabling the two liquids produced in the step 3 and the step 4 to dissolve each other, guiding the liquids into a reaction pot for reaction, and stirring; and 6, deeply filtering the liquid produced in the step 5 through a filter, then inputting the filtered liquid into a softening system for softening treatment, and finally pouring the softened liquid into a storage tank for settlement, so as to obtain the finished product. The composite clean liquid fuel has the advantages of safety, environmental protection, no undesirable odor, easiness in production, low cost and the like, and is suitable to be used as fuel oil for kitchens.

The invention discloses a water-based coating material for a galvanized steel plate, and a preparation method thereof. The water-based coating material comprises a component A, a component B and a component C, wherein the component A is composed of 15-20 parts by weight of methyltrimethoxysilane, 1-2 parts by weight of white carbon black and 1-2 parts by weight of stearate, the component B is prepared from 20-25 parts by weight of cation modified potassium silicate resin, 15-25 parts by weight of pigment, 6-16 parts by weight of filler, 0.5-1 part by weight of leveling agent, 0.5-1 part by weight of defoamer, 1-2 parts by weight of a film forming aid, 0.5-1 part by weight of dispersing agent, 3-8 parts by weight of photocatalyst and 20-30 parts by weight of water, and the component C is prepared from the following components in parts by weight: 1-2 parts of organic acid and 1-2 parts of xylylguanidine. According to the invention, by adding potassium silicate into the water-based coating material, the problem of flash rust of the existing water-based coating material for galvanized steel plates is solved, so that the coating material has favorable impact resistance; and the preparedwater-based coating material has excellent properties by further preferably selecting other components and reasonably compounding.

The invention relates to an automobile synthetic gasoline and a preparation method thereof, belonging to the technical field of synthetic chemical fuel. The synthetic gasoline contains methyl alcohol,methylbenzene, ethyl acetate, zinc peroxide, HMPA, glyceride, octane number regulator and xylidine. The automobile synthetic gasoline has the characteristics of good volatility and stability, high calorific value, no carbon deposit, low cost, etc.

The invention discloses a preparation method of bupivacaine hydrochloride. The preparation method includes the steps of: 1) preparing N-(2,6-xylyl)-2-piperidineformamide; 2) preparing the bupivacaine hydrochloride. The reaction routes in the two steps are described in the specification. The method has high yield, high product quality and low operation cost, allows automation operation of equipment, has good stability, and can satisfy industrial demands.

This invention provides a solar cell rear surface protection sheet comprising two or more substrates laminated together by means of an adhesive, the adhesive comprising a urethane resin obtained by mixing an acrylic polyol, an isocyanate compound, 3-glycidoxypropyltriethoxysilane, and tin octylate, wherein

• the acrylic polyol being obtained by polymerizing polymerizable monomers, the polymerizable monomers comprising a hydroxyl group-containing monomer and other monomers, the other monomers comprising acrylonitrile,
• the isocyanate compound comprising both a xylylene diisocyanate monomer and hexamethylene diisocyanate isocyanurate, the xylylene diisocyanate monomer being is present in an amount of 20 to 40 wt %, and the hexamethylene diisocyanate isocyanurate is present in an amount of 80 to 60 wt % and
• the equivalent ratio of isocyanate groups of the xylylene diisocyanate monomer and the hexamethylene diisocyanate isocyanurate to hydroxyl groups of the acrylic polyol being 1.0 to 3.0.

Xylylene dicarbamate contains impurities represented by formulas (1) to (4) below at a ratio of less than 100 ppm as a total amount thereof on a mass basis.

The invention relates to a preparation method of an absorption-spectrum-adjustable poly-p-xylene packaging and protection coating for packaging an integrated circuit chip, an electronic device, a circuit board or a functional material. The preparation method comprises the following steps: putting p-xylene dimer powder into a vacuum feeding cabin, heating to 120-150 DEG C, vaporizing into p-xylenedimer gas, and cracking the p-xylene dimer gas into active p-xylene aggregate gas through a 650 DEG C cracking pipe; and placing different types of anthraquinone or azo or phthalocyanine compound mixed powder with different luminescence spectrum characteristics as a synthesis precursor with novel synthesis spectrum characteristics into a doping feeding cabin, heating to 150-300 DEG C, uniformly adsorbing the activated gas on the surface under the condition that the vacuum degree is controlled to be 0.01-100 Pa, generating a free radical polymerization reaction, and depositing to form a poly-p-xylene coating with the adjustable absorption spectrum and the thickness of 0.1-50 [mu]m so as to obtain the finished poly-p-xylene packaging and protection layer with the adjustable absorption spectrum.

The invention discloses a preparation method of an annular flexing resistant synchronous belt. The synchronous belt comprises the following raw materials by mass percentage: 4% of MOCA (4,4'-methylenebis(2-chloroaniline)), 1% of releasing agent, 5% of lubricant, 12% of chain extender, 8% of plasticizer, 5% of steel wire rope, 3% of glass cord, 2% of aramid fiber, 40% of polyhydric alcohol and 20%of polyisocyanate, wherein polyisocyanate is one of diphenylmethane diisocyanate, 2,4-toluene diisocynate, 2,6-toluene diisocynate, toluidine diisocyanate, xylidine diisocyanate, 1,5-naphthalene diisocyanate, polymethylene polybenzene isocyanate, isophorone diisocyanate, hexamethylene diisocyanate, dicyclohexyl methane diisocyanate and p-phenylene diisocyanate. The method obviously improves wearresistance, tension resistance and flexing resistance of the synchronous belt, and the whole synchronous belt has better properties.