68 results about "Metal alkoxide" patented technology

The present disclosure relates to methods and apparatuses for depositing metal-containing material on a substrate by a selective deposition process. The method comprises providing a substrate in a reaction chamber, providing a metal alkoxide precursor into the reaction chamber in a vapor phase; and providing a second precursor into the reaction chamber in a vapor phase to form metal-containing material on the substrate. The second precursor according to the disclosure comprises a borane compound and the substrate comprising a first surface and a second surface.

A method of anodizing an aluminum alloy, comprising the steps of: providing an anodizing bath containing tert-butoxide, primarily oxalic acid; aging the anodic oxidation bath to condense the metal alkoxide to form metal oxide particles and an acid ester; heating the bath to 40 DEG C to 80 DEG C; stirring the bath at a speed of 200 to 700 rpm (revolutions per minute); immersing the workpiece in a bath and anodizing at a constant current density of 1 A / dm2 to 4 A / dm2 for 1 to 20 minutes or until the bath voltage reaches a threshold value of 100 to 200 V; the workpiece is then anodized at a constant voltage for 20 minutes to 200 minutes to produce an anodized surface having a thickness of 5 microns to 100 microns, the anodized surface comprising an optically discontinuous pore structure that produces a white or near-white appearance.

Metal-organic thermoset polymers are provided. The metal-organic thermoset polymers can be formed from a mixture including at least one epoxy resin and at least one metal alkoxide. Articles including the metal-organic thermoset polymers and processes for manufacturing the metal-organic thermoset polymers are also provided.

A method for controlling a reactive distillation column for effecting a transalcoholisation reaction, comprising feeding a metal methoxide into the reactive distillation column via a side feed; feeding a reactant alcohol into a lower part of the reactive distillation column; withdrawing methanol from the top of the reactive distillation column; and withdrawing a solution of a product metal alkoxide in the reactant alcohol from the bottom of the reactive distillation column; wherein the method comprises a process control scheme selected from: Scheme A: establishing a signal S1 which is responsive to a temperature in the rectifying section disposed above the feed of the metal methoxide; and manipulating in response to the signal S1 the feed amount of the reactant alcohol; Scheme B: establishing a signal S1 which is responsive to a temperature in the rectifying section disposed above the feed of the metal methoxide; and manipulating in response to the signal S1 the heat supplied to the bottom of the reactive distillation column. The invention also relates to a method for controlling a reactive distillation column for effecting a transalcoholisation reaction, comprising feeding a metal methoxide into the reactive distillation column via a side feed; feeding a reactant alcohol into a lower part of the reactive distillation column; causing an auxiliary alcohol to be present in the reactive distillation column; and optionally replenishing the auxiliary alcohol via a side feed located above the feed of the reactant alcohol and below the top of the column; withdrawing methanol from the top of the reactive distillation column; and withdrawing a solution of a product metal alkoxide in the reactant alcohol from the bottom of the reactive distillation column; wherein the method comprises a process control scheme selected from: Scheme C: establishing a signal S2 which is responsive to a temperature at a point located between the feed of the metal methoxide and the bottom of the reactive distillation column; and manipulating in response to the signal S2 the feed amount of the reactant alcohol; Scheme D: establishing a signal S2 which is responsive to a temperature at a point located between the feed of the metal methoxide and the bottom of the reactive distillation column; and manipulating in response to the signal S2 the heat supplied to the bottom of the reactive distillation column. The methods of the invention allow for improved controlling of a reactive distillation column for effecting a transalcoholisation reaction.

Described herein is an aqueous composition and a method of making a sol-gel coating. The aqueous composition comprises (a) an organometallic salt, wherein the organometallic salt comprises an acid-stable metal alkoxide, a metal carboxylate, or a mixture thereof; and (b) an aminosilane, wherein the aqueous composition has a pH less than or equal to 7. Such sol-gel coating compositions can be used to adhere an organic resin to a metal substrate.

A gas barrier laminate including a gas barrier layer and a sealing layer laminated on a substrate in this order, wherein the gas barrier layer is a layer formed by applying and heat-drying a coating solution containing a water-soluble polymer and at least one of a metal alkoxide represented by a general formula M(OR1)n(where M is a metal element, R1 is an alkyl group, and n is the oxidation number of the metal element) and a hydrolyzate of the metal alkoxide, a content of the water-soluble polymer is 50 wt % or more relative to a total mass of a solid content in the coating solution, a total content of the metal alkoxide and the hydrolyzate thereof is 5 to 50 wt % relative to the total mass of the solid content in the coating solution, and the sealing layer contains an aqueous heat seal varnish.

The invention provides Sc2O3 porous aerogel as well as a preparation method and application thereof. According to the method, ScCl3. 6H2O is selected as a scandium source and is non-toxic, and the reaction activity of the ScCl3. 6H2O is controllable compared with that of organic metal alkoxide. In addition, compared with supercritical drying and freeze drying, the normal-pressure drying method for graded drying is lower in cost and higher in safety, and graded drying can effectively protect the nano structure and reduce cracking and collapse of the sample as much as possible. In addition, the scandium oxide aerogel is synthesized for the first time, and the product is high in porosity, large in specific surface area and good in heat insulation performance and has positive significance in application of aerogel materials in various fields.

In order to produce core-shell particles and hollow particles having a sharp particle size distribution by suppressing the generation of solid particles and also suppressing particle aggregation and coalescence, this method for producing core-shell particles according to one embodiment of the present disclosure involves mixing an oil phase containing a hydrophobic organic solvent and a metal alkoxide into an aqueous phase comprising water and / or a hydrophilic organic solvent while in the presence of a surfactant, forming an O / W emulsion, and producing core-shell particles having a solvent as a core and a metal oxide as a shell.

A method of manufacturing an inorganic oxide nanofiber of an embodiment of the disclosure includes: preparing a mixture solution by dissolving water, a metal alkoxide, a catalyst, and a surfactant in an aprotic or protic polar solvent; removing the polar solvent from the mixture solution and synthesizing a nanostructure having a reverse two-dimensional hexagonal structure; and thereafter decomposing the nanostructure.

This invention provides a multi-surface modified O2-type lithium-rich manganese-based material and its preparation method, belonging to the field of O2-type lithium-rich manganese-based cathode materials. This invention first coats a Na-based P2-type precursor with fluoride, followed by ion exchange to obtain an O2 structure. This improves the rate performance of the O2-type lithium-rich manganese-based material and avoids the phase transition (O2 to O3). An oxide coating layer is prepared on the surface of the fluorine and lithium compound-containing O2-type lithium-rich manganese-based material using metal alkoxides. This allows for low-temperature preparation of the oxide coating layer, preventing the O2 structure from transforming into the O3 structure and improving cycle stability. The multi-coating process suppresses the release of reactive oxygen species during charging, improving the first-cycle coulombic efficiency. The multi-surface modified O2-type lithium-rich manganese-based material prepared by this invention exhibits high first-cycle coulombic efficiency and cycle stability.

The invention discloses a preparation method of an anti-sticking slag coating for a laser cutting machine and the anti-sticking slag coating, and relates to the field of high-end equipment manufacturing and surface modification. The method comprises the following steps: treating an h-BN nano-material with a silane coupling agent alcohol-water solution to obtain h-BN-OH, preparing a ceramic sol by using metal alkoxide / silicate as a ceramic precursor, dispersing the h-BN-OH in the ceramic sol to form a covalent bond connected nano-composite sol, coating a base material with the nano-composite sol through a dip-coating / spin-coating method, and carrying out heat treatment in an inert / vacuum environment at 400-800 DEG C for 1-5 hours to form a coating, and the ratio of h-BN-OH in the coating is 5%-30%. In the coating, h-BN and a ceramic matrix are chemically bonded, a working adhesion work calculation model is also established, and quantitative prediction and optimization of the coating performance are realized. The coating is good in wetting resistance and durability, capable of effectively preventing adhesion of molten metal slag, high in process adaptability, controllable in cost and suitable for components such as laser cutting machine nozzles and supporting grilles, and the service life of the components can be remarkably prolonged.

The present invention relates to a process for the synthesis of stannous alkoxides. Some embodiments of the methods include contacting a stannous halide with a metal alkoxide to form a stannous alkoxide. Some embodiments of the methods include contacting an aminated tin compound with an alcohol compound to form a stannous alkoxide. Some embodiments of the methods include contacting a stannous halide with at least 3 equivalents of a metal alkoxide to form a tin compound. Some embodiments of the methods include contacting a stannous halide with an alcohol compound and a co-reactant base to form a stannous alkoxide.

The invention belongs to the technical field of porous metal oxides, and particularly relates to a preparation method and application of a honeycomb-shaped metal oxide. The invention provides a simple and universal method for synthesizing the honeycomb-shaped porous metal oxide. According to the method, the metal oxide with the orderly-arranged holes is obtained based on template precipitation and in-situ chemical conversion, the controllability of the reaction process can be improved, and the cost can be reduced. The method is characterized in that the appropriate metal salt is used for replacing the expensive metal alkoxide, the in-situ chemical conversion process is adopted, control over the environment temperature and humidity in the metal alkoxide hydrolysis process is avoided, the universality of the method is effectively improved, and meanwhile the more ideal production effect can be achieved by optimizing the reaction conditions.

To provide a heating roller whose resistance can be reduced, whose sufficient performance can be maintained over a long term and whose warming-up time can be shortened.SOLUTION: In the heating roller 100, a conductive layer 1 of a heating resistor is laminated on a cylindrical metal roller 3 via an insulating layer 2, and power is supplied to the heating resistor to generate heat. The heating resistor contains at least a predetermined amount of multi-walled carbon nanotubes, a predetermined amount of a silica-containing epoxy resin, and a predetermined amount of an organic metal compound, and the organic metal compound is at least one compound selected from the group consisting of an organic metal chelate compound and a metal alkoxide containing at least one metal selected from the group consisting of titanium, zirconium, and aluminum.SELECTED DRAWING: Figure 1

A display device includes a display panel that displays an image. A window layer is arranged on the display panel. A protective film is arranged on the window layer. The protective film includes a base layer directly contacting the window layer. A hard coating layer is arranged on the base layer. A first functional layer is arranged on the hard coating layer and includes a metal alkoxide compound. A second functional layer is arranged on the first functional layer and includes a cross-linking structure of a fluorinated acrylate compound.

The present invention relates to a coated cooking element (1) for a kitchen utensil or electrical cooking appliance, comprising a metal substrate (2) coated, on at least one face (2a), with at least the following layers in this order, starting from the metal substrate (2): (3a) a sol-gel base layer; (3c) a sol-gel layer obtained from a sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain that comprises at least one unsaturated compound and / or is substituted by a thiol group; and (3d) a finishing layer in contact with the layer (3c) and comprising an elastomer silicone obtained from at least one organopolysiloxane bearing reactive vinyl functional groups (-CH=CH2) and at least one other organopolysiloxane bearing reactive hydrosilane functional groups (-Si-H) or reactive thiol functional groups (-S-H).

The present invention relates to a coated cooking element (1) for a cooking article or electric cooking appliance, comprising a metallic substrate (2) coated on at least one face (2a) by a coating (3) consisting of the following layers and in this order from the metallic substrate (2): (3a) a sol-gel base layer obtained from at least one sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted by a thiol group, (3b) optionally one or more discontinuous intermediate layer(s) which may be decorations,and (3c) a topcoat at least partially in contact with layer (3a) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing reactive vinyl (-CH=CH2) functions and at least one other organopolysiloxane bearing reactive silyl hydride (-Si-H) or reactive thiol (-SH) functions, wherein, when the silicone elastomer of layer (3c) is obtained from at least one organopolysiloxane bearing reactive thiol (-SH) functions, the metal alkoxide precursor of layer (3a) has an aliphatic chain comprising at least one unsaturation and which may further be substituted by a thiol (-SH) group. Figure for abbreviation: Figure 1,

The invention discloses composite coating liquid as well as a preparation method and application thereof, and belongs to the technical field of coating liquid. The coating liquid provided by the invention is prepared from the following preparation raw materials: a silicon source, metal alkoxide, an acidic catalyst and water, the metal alkoxide comprises at least one of zirconium n-propoxide and titanium n-propoxide; according to the preparation method and application of the composite coating liquid, metal alkoxide dissolved in an organic solvent and water is blended with a hydrolysis silicon source after being hydrolyzed, the two substances are jointly hydrolyzed and crosslinked under the acidic condition, due to the fact that ionic potentials are similar, evenly-distributed and stable particle clusters are formed at the positions where inorganic silicon ions are replaced by metal ions, and therefore the composite coating liquid is obtained. The coating liquid is coated on the surface of glass to form a uniformly distributed coating, and the compact inorganic high-weather-resistance anti-reflection coating is formed after high-temperature sintering and tempering.

The present invention relates to a coated cooking element (1) for a cooking article or electric cooking appliance, comprising a metallic substrate (2) coated on at least one face (2a) by at least the following layers and in this order from the metallic substrate (2): (3a) a sol-gel base layer; (3b) optionally one or more intermediate layer(s) which may be decorations;(3c) a sol-gel layer obtained from a sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted with a thiol group, and (3d) a topcoat in contact with layer (3c) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing reactive vinyl functions (-CH=CH2) and at least one other organopolysiloxane bearing reactive silyl hydride functions (-Si-H) or reactive thiol functions (-SH), wherein, where the silicone elastomer of layer (3d) is obtained from at least one organopolysiloxane bearing reactive thiol functions (-SH), the metal alkoxide precursor of layer (3c) has an aliphatic chain comprising at least one unsaturation and which may further be substituted with a thiol group thiol (-SH). Figure for abbreviation: Figure 1;

For example, when used as a material for forming metal oxide thin films, the objective is to provide a metal alkoxide-containing composition that can form metal oxide thin films with fewer cracks and lower surface roughness compared to conventional thin films, even when the thickness is increased. [Solution] A metal alkoxide-containing composition comprising the following component (A) and the following component (B), wherein the mass-based content ratio (A / B) is 70.0 / 30.0 to 99.9 / 0.1. (A) Metal alkoxides with a total of 1 to 40 carbon atoms, (B) A hemiacetal ester of a carboxylic acid consisting of a 1-4 valent carboxylic acid and a vinyl ether, wherein the number of carbon atoms after removing the vinyl group of the vinyl ether is 1-6.

An optical filter including a light absorbing glass substrate that absorbs light and that is composed of a phosphate-based glass or a fluorophosphate-based glass; a bonding layer that is provided on the absorbing glass substrate, that has a single layer structure, and that comprises a coupling agent composition including at least one dehydrated condensate of a silicon compound containing a Si atom; and a metal alkoxide containing a Ti atom, a Zr atom, an Al atom, or a combination thereof; and a resin layer disposed on the bonding layer.

The present invention relates to a coated cooking element (1) for a kitchen utensil or electrical cooking appliance, comprising a metal substrate (2) coated, on at least one face (2a), with a coating (3) consisting of the following layers, in this order starting from the metal substrate (2): (3a) a sol-gel base layer obtained from at least one sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted by a thiol group, and (3c) a finishing layer at least partially in contact with the layer (3a) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing vinyl reactive functions (-CH=CH2) and at least one other organopolysiloxane bearing silyl hydride reactive functions (-Si-H) or thiol reactive functions (-S-H).

An insulating coating composition for an electrical steel sheet, according to one embodiment of the present invention, comprises 100 parts by weight of a metal phosphate, 30-350 parts by weight of silica, 13-30 parts by weight of a metal alkoxide, and 3-28 parts by weight of a lithium compound.

A method for producing a compound of formula (1) R11X11—SO3M11, which includes reacting a compound of formula (3) R31O—SO2—OR32 and a metal alkoxide, wherein R11, X11 and M11 are as defined herein.

The invention relates to the technical field of electrolytic hydrogen production, and discloses an alkaline electrolytic hydrogen production diaphragm and a preparation method thereof. The preparation method comprises the following steps: carrying out hydrophilic pretreatment on a porous base membrane to obtain a first base membrane containing hydroxyl; carrying out ultrasonic immersion treatment on the first base membrane by using a metal alkoxide solution to obtain a second base membrane attached with a metal organic complex layer; performing first drying on the second base film to obtain a third base film; hydrolyzing the third base membrane to obtain an alkaline electrolytic hydrogen production diaphragm attached with a metal inorganic substance layer; wherein the metal inorganic substance layer comprises a metal hydroxide. The preparation method is simple to operate, and the metal oxide layer is generated on the porous base membrane in situ, so that the alkaline electrolytic hydrogen production diaphragm with excellent temperature resistance and relatively high structural stability is obtained.

The present invention relates to a method for degrading epoxy hybrid resins containing at least one chemically bound siloxane, in which at least one siloxane chemically bound in the epoxy hybrid resin is chemically bound to the epoxy hybrid resin via at least two SiC bonds, and in which the at least one siloxane is chemically bound to the epoxy hybrid resin via at least two SiC bonds based on the total epoxy hybrid resin. The silicon fraction, expressed in terms of mass percent of silicon, is 1.5 mass% < = silicon fraction < = 10 mass%, wherein the epoxy hybrid resin is in contact with a mixture of at least one alkali metal alkoxide and at least one alcohol.

The application discloses an oxygen evolution electrode and a preparation method and application thereof, and comprises the following steps: mixing nickel nitrate, iron nitrate, isopropyl alcohol and glycerol to obtain a mixed solution; and placing a current collector in the mixed solution and performing ultrasonic treatment at normal temperature and pressure, wherein the frequency of the ultrasonic treatment is 20 kHz-80 kHz, and the ultrasonic treatment time is 2-10 h. The preparation method of the oxygen evolution electrode can prepare the oxygen evolution electrode loaded with a nickel-iron metal alkoxide in a short time at normal temperature and pressure through simple ultrasonic treatment, and the preparation method is simple and feasible, raw materials are cheap, and the method is environment-friendly, so that the method is suitable for industrial large-scale production and can effectively promote the development of green hydrogen production technology.

The invention belongs to the technical field of ceramic nanofiber paper manufacturing, and particularly relates to flexible ceramic nanofiber paper and a folding and shaping method and application thereof, and the method comprises the following steps: synthesizing a linear inorganic molecular chain with long-short side groups, preparing into a fiber spinning solution, and spinning into a precursor; performing infrared heating softening and folding shaping on the precursor; calcining to obtain ceramic nanofiber paper; the linear inorganic molecular chain with the long-short side group is prepared by the following steps: carrying out coordination modification on a metal alkoxide monomer by using a long / short inert ligand, and carrying out copolymerization and chain extension to obtain the linear inorganic molecular chain with the long-short side group; ultrasonic vibration is carried out in the folding and shaping process; and then cooling. Compared with the prior art, the problems that existing ceramic nanofiber paper of a three-dimensional structure is poor in performance, and the structure is difficult to maintain are solved. According to the scheme, through synergistic improvement of a precursor structure and a process, the ceramic nanofiber paper has excellent flexibility and structural stability, and the integrity and stability of a three-dimensional structure are improved.

The present application belongs to the technical field of ceramic ultra-fine fiber material, and relates to a flexible ceramic ultra-fine fiber material based on airflow blowing and a preparation method thereof. First, a polar solvent is mixed with a metal alkoxide and stirred to obtain a low-activity functional modified metal alkoxide through an association reaction; then, deionized water and a non-ionic surfactant are added and ultrasonically dispersed to obtain an ultra-fine colloidal particle stable sol after concentration; subsequently, a cyclone auxiliary environment atmosphere control and a heat auxiliary fiber receiving technology are combined to perform airflow blowing through a 'V-shaped' spinneret, and a multi-morphology ceramic precursor fiber material is obtained after drying; then, after being ceramized through an array type laser spot welding technology, the flexible ceramic ultra-fine fiber material is obtained through a flash crystal technology 'ultra-high speed heating-rapid cooling' treatment. The flexible ceramic ultra-fine fiber material has an average fiber diameter of 10-800 nm, a grain size of 2-30 nm, and a bending stiffness of 30-100 mN.

This invention relates to an elastic ceramic crimped nanofiber floc based on linear inorganic molecular chains, its preparation method, and its application. The method includes: dissolving a first binocular linker in a metal alkoxide monomer, connecting the monomer via a hydrolysis-condensation reaction, adding a second binocular linker to replace the remaining active groups to form a linear pre-coordinated framework; initiating condensation polymerization with water and an inorganic acid to obtain linear inorganic molecular chains; extending the chains with a chain extender and terminating the reaction with a capping agent to obtain a spinning solution. The spinning solution is fed into a periodically arranged spinneret module, where a crimped jet is formed under electrostatic and airflow action. After being shaped by multi-point micro-disturbance airflow, crimped precursor nanofibers are obtained. Controlling the motion parameters of the spinneret module allows the precursor nanofibers to dynamically assemble in multiple directions, forming a three-dimensional interwoven precursor floc on a transmission belt. The precursor floc is then rolled and rapidly calcined to obtain ceramic nanofiber flocs. These flocs have a resilience of ≥95% and can be repeatedly compressed and rebounded at a high temperature of 1500℃.