327 results about "Aromatic solvent" patented technology

A method for providing an anhydrous route for the synthesis of amine capped coinage-metal (copper, silver, and gold) nanoparticles (NPs) using the coinage-metal mesityl (mesityl=C₆H₂(CH₃)₃-2,4,6) derivatives. In this method, a solution of (Cu(C₆H₂(CH₃)₃)₅, (Ag(C₆H₂(CH₃)₃)₄, or (Au(C₆H₂(CH₃)₃)₅ is dissolved in a coordinating solvent, such as a primary, secondary, or tertiary amine; primary, secondary, or tertiary phosphine, or alkyl thiol, to produce a mesityl precursor solution. This solution is subsequently injected into an organic solvent that is heated to a temperature greater than approximately 100° C. After washing with an organic solvent, such as an alcohol (including methanol, ethanol, propanol, and higher molecular-weight alcohols), oxide free coinage NP are prepared that could be extracted with a solvent, such as an aromatic solvent (including, for example, toluene, benzene, and pyridine) or an alkane (including, for example, pentane, hexane, and heptane). Characterization by UV-Vis spectroscopy and transmission electron microscopy showed that the NPs were approximately 9.2±2.3 nm in size for Cu°, (no surface oxide present), approximately 8.5±1.1 nm Ag° spheres, and approximately 8–80 nm for Au°.

A process for the preparation of low molecular weight linear alpha olefins is disclosed. The process comprises oligomerising ethylene in an inert aliphatic or aromatic solvent in the presence of a catalyst comprising of a first component selected from zirconium alkoxide and zirconium aryloxide and a second component selected from alkyl aluminum halide and/or alkyl aluminum.

The invention relates to a paint used in large casting element and relative production, wherein said paint is alcohol-base zircon powder casting paint, which contains zircon at 62-75%, lithium-base at alta-mud 1-3%, deionized water at 1-3%, modified almasilate at 1-3%, nanometer clay at 0.15-0.8%, alumind at 0.020-0.08%, soluble polyester resin at 0.2-1.2%, polyvinyl butyral (PVB) at 0.1-0.8%, abietyl at 0.6-3%, industrial alcohol at 15-25%, alcohol isopropylicum at 1-5%, and aromatic solvent oil at 150#1-5%. The inventive product has high fire resistance, etc.

A process of styling hair involving applying onto the hair a composition containing: (a) at least one propylphenylsilsesquioxane resin comprising from about 30 to about 50 mole % of propyl siloxy units, based on the total mole % of siloxy units of the resin, and from about 50 to about 70 mole % of phenyl siloxy units, based on the total mole % of siloxy units of the resin; (b) at least one phenylsilsesquioxane resin; (c) at least one volatile solvent; and (d) optionally, at least one cosmetically-acceptable aromatic solvent.

An olefin polymer selected from the group consisting of a 1-butene homopolymer, a copolymers of 1-butene with propylene and a copolymer of 1-butene with an alkenyl hydrocarbon having 5 or more carbon atoms, wherein said olefin polymer is an amorphous polymer having a polystyrene-reduced number average molecular weight of 200,000 and substantially not having a melting point, an olefin polymerization catalyst obtained by contacting a specific transition metal compound(A), an organoaluminumoxy compound (B) soluble in an aromatic solvent and water (C), and a process for producing said olefin polymer with said catalyst.

The club cleaner, conditioner and protectant comprises alpha-olefins, low-odor aromatic solvents; and at least one base oil selected from the base oil group consisting of Hydrolsomerized high base oils and HT Sever Hydro-cracked Base oils; as well as other (optional) ingredients. Also disclosed is a method for producing this product and related product-by-process. This product uses a formulated cleaning mixture to clean and restore the face of the club while rejuvenating the grips. The invention when sprayed on the clubface removes foreign materials and when wiped dry protects the face of the clubs from harsh stains, caused by soils, grass and chemicals related to fertilizers. In experimental testing, the invention increases drive distances by reducing sidespin and increasing backspin. The club is left with a factory-like finish making it easy to wipe clean of soiling. The invention when applied to the grips restores the surface to the new feel.

The oligomerization of ethylene using a chromium catalyst having a bridged diphosphine ligand can produce a selective product distribution (to predominantly hexene or predominantly octene/hexene) when activated with an aluminoxane. The oligomerization reaction also produces polymer by product—particularly when the aluminoxane is provided in a non-aromatic solvent. The present invention mitigates this problem.

A system (10), process and apparatus are disclosed for purifying carbon black (15) containing sulfur and metal oxide impurities by digesting (20) the impure carbon black in an acid to extract the metal oxide (25). Sulfur (45) is then removed from the acid treated carbon black (30) by solvent extraction (35) with an organic aromatic solvent which is then recovered (50). The purified carbon black (40) is then suitable for use as a toner (60) by toner black processing (55).

The invention relates to polyurethane matte white finish coat for non-benzene and odor-free furniture, which consists of a main agent, a curing agent and a diluent, wherein the main agent comprises hydroxyl acrylic resin, titanium white, solvent, a defoaming agent, a flatting agent, an anti-settling agent, a dispersing agent and a flatting agent; the curing agent comprises a toluene diisocynate tripolymer, toluene diisocynate-trimethylolpropane addition product and butyl acetate; and the diluent comprises the butyl acetate, cyclohexanone and propylene glycol monomethyl acetate. By adopting the technical scheme, the polyurethane matte white finish coat has the advantages that: an obtained paint film has less residual solvent and is tasteless after 12 hours; a formula does not contain chemical substances harmful to body health of human beings, such as benzene, methylbenzene, dimethylbenzene, other aromatic solvents and derivatives, methanol, glycol ether ester solvents, halogenated hydrocarbon and the like, and the excellent decorative and protective effects of the conventional polyurethane (PU) dual-component furniture paint are reserved in the formula; and the polyurethane matte white finish coat is easy to construct and is applicable to various construction modes such as spraying, electrostatic spraying and brush coating.

The present invention discloses a method for jointly preparing a series of products of an aromatic solvent, petronaphthalene and durene from a C10 heavy aromatics material, belonging to the C10 heavy aromatics complex utilization technical field. The method comprises the following steps of: A) separating the C10 heavy aromatics material; B)refrigerating and crystallizing an enrichment solution of durene; C)refrigerating and crystallizing an enrichment solution of naphthalene; D) gas phase catalytically oxidizing durene; and E) preparing technical grade PMA, technical grade PMDA and electronic grade PMDA from a crude product. The method has the advantages that the method can carry out joint production to obtain the series of products of aromatic solvent, petronaphthalene and durene by the C10 heavy aromatics material so that the C10 heavy aromatics material obtains sufficient utilization, thereby contributing to resource economizing.

The present invention is directed to a cosmetic composition containing: (a) at least one propylphenylsilsesquioxane resin; (b) at least one cosmetically-acceptable aromatic solvent; (c) at least one colorant, and (d) optionally, at least one co-solvent, and wherein the composition is substantially free of volatile solvents. Also disclosed is a method of imparting lasting shine onto lips by contacting the lips with the above described composition.

The purpose is to provide a technique which enables various kinds of conductive polymer composition to be dissolved in an organic solvent and to be used to form a conductive membrane on a target portion easily. Provided is a composite conductive polymer composition, a method of manufacturing the same, and a solution obtained by dissolving the composition in an aromatic solvent, ester-based solvent or ketone-based solvent. The composition is obtained by doping a π-conjugated polymer (β) with a polymer compound (A), wherein the polymer compound (A) is obtained from (a-1) a monomer having a sulfonic acid group and a polymerizable vinyl group in an amount of 20 to 60 mol %, (a-2) a polar monomer having a hydrophilic group and a polymerizable vinyl group in an amount of 20 to 60 mol %, and (a-3) another polymerizable monomer in an amount of 20 to 60 mol %, and the n-conjugated polymer (β) is obtained from a monomer compound selected from the formulas (I) to (III)

in the formula (I) to (III), at least one of R₁ to R₄ represent an alkoxy group of C₁ to C₁₀, and the other groups represent H, an alkyl group of C₁ to C₁₀, or an alkoxy group of C₁ to C₁₀; at least one of R₅ and R₆ represent an alkoxy group of C₁ to C₁₀, and the other group represents H, an alkyl group or an alkoxy group of C₁ to C₁₀, or R₅ and R₆ jointly represent an alkylenedioxy group of C₁ to C₈; and R₇ represents H, an alkyl group of C₁ to C₆, or an aromatic ring group.

The invention provides a method for directionally controlling the reaction of LiH and AlCl3 with a catalyst to synthesize A1H3, which relates to an AlH3 synthesis method. The technical problems that AlH3 made by the traditional AlH3 making method is unstable and requires high cost are solved. The method comprises the following steps of: 1. uniformly mixing anhydrous AlCl3, tertiary amine and an anhydrous aromatic solvent under anhydrous and anaerobic conditions to obtain a solution A; 2. uniformly mixing LiH and the anhydrous aromatic solvent under anhydrous and anaerobic conditions to obtaina solution B; 3. adding the solution B to the solution A, heating under anhydrous and anaerobic conditions for reaction, then standing and filtering to obtain filtrate; 4. removing the solvent in thefiltrate to obtain powder; and 5. vacuum drying to obtain AlH3. The method has low cost and is suitable for industrial production, and products produced with the method are stable. Made AlH3 can be used for making a high-energy solid propellant.

The invention discloses a preparation method of m-trifluoromethylphenol. The preparation method of the m-trifluoromethylphenol comprises the steps that (1) in a continuous flow reactor, a sulfate aqueous solution and an aqueous solution of sodium nitrite are subjected to a diazotization reaction to obtain a diazonium salt solution, wherein the sulfate aqueous solution is a mixture of an aqueous solution of sulfuric acid and m-trifluoromethyl aniline; and (2) in the continuous flow reactor, under the existence of an aromatic solvent, the diazonium salt solution obtained in the step (1) is subjected to a hydrolysis reaction to obtain the m-trifluoromethylphenol, wherein the temperature of the hydrolysis reaction is 101-200 DEG C. Through the continuous preparation method, the reaction concentration can be increased, the reaction time can be greatly shortened, production efficiency is improved, the safety risk is lowered, the yield can reach 95% or above, the purity can reach 99.5% or above, and the method has the advantages of being easy and convenient to operate, safer, more environmentally friendly, lower in cost and the like.

The lubricating oil composition of the present invention comprises at least one species of aromatic constituent selected from the following (a1) to (a5):

• (a1) a lubricating base oil comprising a polycyclic aromatic content of 0.01% by mass or more based on the total amount of base oil
• (a2) a lubricating base oil comprising a total aromatic content of 20 to 100% by mass based on the total amount of base oil
• (a3) an aromatic solvent
• (a4) at least one species of polycyclic aromatic compound selected from alkyl naphthalene and compounds having three or more aromatic rings, and
• (a5) an aromatic compound having a nitrogen atom, an oxygen atom or a sulfur atom;
• and an organic molybdenum compound.

A method for preparation of porous polyimide microparticles comprising, forming polyamide acid microparticles by pouring polymer solution prepared by dissolving polyamide acid containing 0.5 to 80 weight % of alkali metal salt to polyamide acid by 0.1 to 15 weight % concentration into a poor solvent selected from the group consisting of aliphatic solvents, alicyclic solvents, aromatic solvents, CS₂ and mixture of two or more these solvents and the temperature of which is adjusted to the range from −20° C. to 60° C., wherein particle size of said polyamide acid microparticles is adjusted to 50 nm to 10000 nm by controlling the temperature of said poor solvent, pore size of said polyamide acid microparticles is adjusted to the range from 20 nm to 500 nm and porosity of said polyamide acid microparticles is adjusted to the range from 0.1% to 30% by controlling a content or a kind of said alkali metal salt, then treating said polyamide acid microparticles by chemical imidation or thermal imidation, or by thermal imidation after chemical imidation so that the particle size distribution, pore size and porosity of said polyamide acid microparticles can be maintained.

One-component, H-siloxane-containing addition-crosslinkable silicone resins, are prepared by charging a reactor with water and a solvent mixture of at least one aromatic solvent and at least one alkyl ester, adding a chlorosilane mixture containing an Si—H functional silane and a silane bearing an unsaturated hydrosilylatable group with stirring, the temperature not being above 50° C., separating an aqueous phase comprising a one-component, H-siloxane-containing addition-crosslinkable silicone resin, and washing the phase comprising the one-component, H-siloxane-containing addition-crosslinkable silicone resin in at least two washing steps to reduce residual HCl content, a final washing carried out using a 0.01%-1.0% strength aqueous solution of a base with a pH between 7.00-8.50, at a temperature of 20-50° C.

The invention discloses a block polyether compound modified lignin and a preparation method, which includes the following steps: a pressure-resistant reactor is firstly carried out the vacuum pumping, the nitrogen is added to the normal pressure, the oxygen is removed, after that, 100 weight parts of the purified lignin, 0.1 to 5 weight parts of base catalyst, and 20 to 100 weight parts of aromatics solvent are taken; the nitrogen is introduced for protection after the feeding, the pressure-resistant reactor is confined and stirred, 10 to 100 weight parts of ethylene oxide and propylene oxide are divided into 2 to 10 equal parts at 80 to 150 DEG C and 0.3 to 1.0 MPa, one equal part of ethylene oxide is introduced during each time of reaction for reaction for 30 to 60 minutes, one equal part of propylene oxide is then introduced for reaction for 30 to 60 minutes, after that, one equal part of ethylene oxide is introduced for reaction, the reaction is stopped after 2 to 10 times of such cyclic reactions, the heating is also stopped, and the mixture is cooled down to the room temperature, then the stirring is stopped, the nitrogen is introduced to enable the pressure-resistant reactor to achieve the normal temperature, finally the product is obtained by removing the distillation fractions with the low boiling points by vacuum distillation. The product can be used as a surfactant and can also be applied to the manufacture of rigid polyurethane foam materials.

The invention provides a preparation method of a semi-inorganic heat-insulating and wave-permeable coating material. The method includes: taking a very-low-carbon ceramic precursor as a base material, matching it with various heat-insulating fillers and various solvents and assistants, by weight, adding 10-50 parts of a heat-insulating filler composed of one or more of quartz powder, hollow glass powder, silica aerogel powder, 1-10 parts of a silane coupling agent and 10-100 parts of an aromatic solvent into 100 parts of the ceramic precursor with a very low C-H group content, and conducting high-speed stirring dispersion to obtain a precursor polymer slurry containing Si-H and N-H active groups, subjecting the coating equipped base material to a drying treatment at 100DEG C-200DEG C for 1-2h so as to make the precursor undergo a cross-linking reaction, performing a treatment at 300DEG C-500DEG C for 1-5h, then carrying out natural cooling, thus obtaining the semi-inorganic coating on the surface of the base material. The method provided in the invention has a simple process. The prepared coating has high temperature resistance, low thermal weight loss rate, good heat insulation performance and excellent wave permeability, and can be widely used in the electronics industry.