39results about How to "High chemical and thermal stability" patented technology

The present invention is for a polymer / polymer mixed matrix membrane and the use of such membranes in gas separation applications. More specifically, the invention involves the preparation of polymer / polymer mixed matrix membranes incorporating soluble polymers of intrinsic microporosity as microporous fillers. These polymeric fillers of intrinsic microporosity exhibit behavior analogous to that of conventional microporous materials including large and accessible surface areas, interconnected micropores of less than 2 nm in size, as well as high chemical and thermal stability, but, in addition, possess properties of conventional polymers including good solubility and easy processability. Gas separation experiments on these mixed matrix membranes show dramatically enhanced gas separation performance for CO2 removal from natural gas. Mixed matrix membranes prepared in accordance with the present invention can also be used in the separation of the following pairs of gases: hydrogen / methane, carbon dioxide / nitrogen, methane / nitrogen and olefin / paraffin such as propylene / propane.

UV-blue excitable green luminescent material including an Eu-doped oxynitride host lattice with general composition MSi2O2N2, wherein M is at least one of an alkaline earth metal chosen from the roup Ca, Sr, Ba.

New ionic liquid-solid-polymer mixed matrix membranes were proposed for gas separations such as CO2 removal from natural gas or N2. For the new mixed matrix membranes, the solids such as carbon molecular sieves, microporous molecular sieves, MCM-41 type of mesoporous molecular sieves, or polymer of intrinsic microporosity (PIM) are coated (or impregnated) with ionic liquids such as 1-butyl-3-methyl imidazolium bis[trifluoromethylsulfonyl]amide. The ionic liquids coated or impregnated solids are then dispersed in the continuous polymer matrix to form mixed matrix membranes. These hybrid mixed matrix membranes will combine the properties of the continuous polymer phase, the ionic liquids, and the dispersed ionic liquids coated or impregnated solids phase, which will possibly open up new opportunities for gas separation processes such as CO2 separation from natural gas or flue gas.

The present invention is for high performance UV-cross-linked membranes from polymers of intrinsic microporosity (PIMs) and the use of such membranes for separations. More specifically, the invention involves the methods of making UV-cross-linked membranes from PIMs. These membranes were prepared by cross-linking the UV-cross-linkable membranes from PIMs by exposure to UV-radiation. Pure gas permeation test results demonstrate that the UV-cross-linked membranes from PIMs exhibit CO2 / CH4 performance well above the Robeson's polymer upper bound trade-off curve for CO2 / CH4 separation. They have more than doubled selectivity for CO2 / CH4 and extremely high permeability of CO2 compared to the original UV-cross-linkable membranes from PIMs. These membranes also show excellent separation performance for CO2 / N2, H2 / CH4, O2 / N2, and propylene / propane separations. These high performance UV-cross-linked membranes are very useful for gas and liquid separations such as CO2 / CH4, CO2 / N2, H2 / CH4, O2 / N2, olefin / paraffin, deep desulfurization of gasoline and diesel fuels, and ethanol / water separations.

The present invention discloses a new class of high flux mixed matrix membranes that are made by incorporating porous inorganic fillers (e.g. microporous and mesoporous molecular sieves, carbon molecular sieves, porous metal-organic frameworks) into a high flux high surface area microporous organic polymer matrix. These microporous organic polymers are referred to as “polymers of intrinsic microporosity” or PIMs. The high flux membranes are promising for a wide range of separations including liquid separations such as pervaporation of phenol / water and also gas separations in the petrochemical, refinery, and natural gas industries such as methane / carbon dioxide, olefin / paraffin and iso / normal paraffins separations.

Synthesis and use of a new class of polymeric materials with favorable separation characteristics for the dehydration of ethanol and other organic solvents is described herein. The thermally rearranged (TR) polybenzoxazole (PBO), polybenzimidazole (PBI) and polybenzothiazole (PBT) membranes of the present invention can be used for the dehydration of ethanol during processing to fuel grade biodiesel by either pervaporation or vapor permeation. The unique microstructure of the membranes provides excellent separation characteristics, and this, coupled with their inherent thermal and chemical stability, enables their usage in other separations, such as the dehydration of other organic solvents.

UV-blue excitable luminescent material consisting of a Eu-doped oxynitride host lattice with general composition MaI2-xSixO4-xNx, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba.

The present invention provides for materials and methods of making metal and ceramic matrix composites reinforced with boron nitride nanomaterials for improved physical properties such as hardness, fracture toughness, and bend strength.

The invention relates to a luminescent substance consisting of a doped host lattice which absorbs at least one part of exciting radiation when it is excited by a high-energy radiation, thereby releasing an energy-poor emission radiation. The host lattice is embodied in the form of a carbidonitridosilicate-based compound. An illuminant which is used for producing white light and comprises a light emitting element and said luminescent substance are also disclosed.

A dense boron-based or phosphorus-based dielectric material is provided. Specifically, the present invention provides a dense boron-based dielectric material comprised of boron and at least one of carbon, nitrogen, and hydrogen or a dense phosphorus-based dielectric comprised of phosphorus and nitrogen. The present invention also provides electronic structures containing the dense boron-based or phosphorus-based dielectric as an etch stop, a dielectric Cu capping material, a CMP stop layer, and / or a reactive ion etching mask in a ULSI back-end-of-the-line (BEOL) interconnect structure. A method of forming the inventive boron-based or phosphorus-based dielectric as well as the electronic structure containing the same are also described in the present invention.

Provided are an electrolyte comprising an amide compound of a specific structure, in which an alkoxy group is substituted with an amine group, and an ionizable lithium salt, and an electrochemical device containing the same. The electrolyte may have excellent thermal and chemical stability and a wide electrochemical window. Also, the electrolyte may have a sufficiently low viscosity and a high ionic conductivity, and thus, may be usefully applied as an electrolyte of electrochemical devices using various anode materials.

A method for preparing a graphene based conductive material and the graphene based conductive material prepared by the method. The method includes: preparing a solid film on a substrate layer by using graphene oxide sol and metal salt solution and / or metal colloidal solution, keeping the solid film separated or without separated from the substrate layer standing for from 30 s to 10000 h in an atmosphere consisting of hydrogen or containing hydrogen with temperature of −50° C.˜200° C. and hydrogen pressure of 0.01-100 MPa, obtaining the graphene based conductive material. The preparation method can be processed at low temperature and uses cheap hydrogen as reductant, so the preparation process is simple and environment friendly.

The invention relates to a method for electrodepositing gallium at low temperature by using an ionic liquid, which comprises the following steps: heating an ionic liquid used as an electrolyte to a colorless transparent state, dissolving gallium chloride in the ionic liquid, and electrodepositing the gallium chloride in the solution, wherein gallium is generated at the cathode of the electrolytic bath, and chlorine gas is emitted at the anode. In the electrodeposition process, the bath voltage of the electrolytic bath is higher than the decomposition voltage of gallium chloride, and lower than that of the electrochemical window of the ionic liquid. The invention has the advantages of low operating temperature, low energy consumption and low apparatus corrosiveness, can greatly lower the production cost, and is environment-friendly.

A method is provided for concentrating a material solution using at least two consecutive membrane separating stages, each stage for separating the material solution into a retentate and a permeate. The cut-off of the membranes used in the separating stages is higher than that of the membrane used in the previous stage. The retentate of each separating stage, with the exception of the last stage, is fed to the following separating stage as a feed, and the permeate from at least one separating stage is fed back to a preceding separating stage and introduced into the feed thereof. The fed-back permeate has a concentration and viscosity that substantially corresponds to the concentration and viscosity of the preceding separating stage into which the permeate is introduced.

The invention relates to a high-pressure pump, especially for delivering fuel for a common rail fuel injection system. The pump includes at least one cam drive having a feeler element which can be set moving in direction of a stroke axis by a cam geometry introduced into the camshaft, the stroke movement being transmittable to a plunger unit. The plunger unit and the feeler element are impinged upon with a force by a compression spring element in the direction of the cam geometry and the plunger unit has at least one contact surface which adjoins the compression spring element. The at least one contact surface and / or the surface of the compression spring element adjoining the same has a friction-reduced surface coating to bring about a torsion decoupling of the compression spring element.

An aromatic graft polymer containing one or more kinds of repeating units represented by the following formula (1). (In the formula, Ar1 represents a divalent residue of a π-conjugated cyclic compound having a side chain represented by the following formula (2), the side chain being bonded to a carbon atom which is included in the ring structure of the divalent π-conjugated-cyclic-compound residue represented by Ar1 and has an sp2 hybrid orbital: (wherein Ar2 represents a divalent group having a residue of a π-conjugated cyclic compound; X1 represents a direct bond or a divalent group selected from the group consisting of NQ1-, —PQ2-, and —BQ3-, wherein Q1 to Q3 each independently represents a substituent; Z represents a direct bond or a divalent connecting group; k is an integer of 3 or larger; and E1 represents hydrogen, halogeno, or a monovalent organic group, provided that when two or more Ar2's, X1's, and Z's are present, then they each may be the same or different and when two or more side chains represented by the formula (2) are present, then they may be the same or different.))

A titanium doped ternary system silicate film is provided, wherein the titanium doped ternary system silicate film has the general formula, of Ca2-xMgSi2O7:xTi4+, where x has a value of 0.00017˜0.0256. The preparation method of the titanium doped tenuity system silicate film and the application of the titanium doped ternary system ,silicate film obtained by the method in field emission de ices cathode my tubes and / or electroluminescent devices are also provided.

A process For the production of a thermoplastic polymer including carbon and sulphur in an atomic ration of C:S of at least 4 and at most 36 using thiol-ene addition polymerization, preferably with feedstocks obtained from renewable resources such as fatty acids from vegetable origin. The product is preferably aliphatic, meaning that at most 70% of the protons are present as aromatic hydrogen atoms and, if oxygen atoms are present in ester functions, the atomic ratio of the oxygen atoms present in ester functions relative to the number of sulphur atoms in the polymer is less than 1.0. The polymer may be used to produce a shaped article.

In one or more embodiments, the present invention provides a method of forming compact, flexible, stable and biocompatible conducting polymer coating for bioelectronics devices. In one or more embodiments, the present invention relates to a novel method of synthesizing a sulfobetaine-functionalized conjugated polymer platform using 3,4-ethylenedioxythiophene (EDOT) as the conducting backbone (SBEDOT). This SBEDOT monomer is highly water-soluble and can be directly polymerized to form a densely packed film / coating on conductive or semi-conductive surfaces through electro-polymerization in a 100% aqueous solution without the need for organic solvents or surfactants. These polySBEDOT (PSBEDOT) coated surfaces have been shown to have electro-switchable antimicrobial / antifouling properties and excellent electrically conducting properties, which minimize infection, increase biocompatibility, and improve the performance of bioelectronics.

Provided are an electrolyte comprising an amide compound of a specific structure, in which an alkoxy group is substituted with an amine group, and an ionizable lithium salt, and an electrochemical device containing the same. The electrolyte may have excellent thermal and chemical stability and a wide electrochemical window. Also, the electrolyte may have a sufficiently low viscosity and a high ionic conductivity, and thus, may be usefully applied as an electrolyte of electrochemical devices using various anode materials.

A proton-conducting material with superior proton conductivity under non-humidified conditions or low-moisture conditions, and with high thermal and chemical stabilities that can be produced easily and at a low cost. A fuel cell that can operate at high temperature under non-humidified conditions or low-moisture conditions. The proton-conducting material has a dry weight per chemical equivalent (EW) of an ion exchange group of not more than 250 and preferably not more than 200.

An ion-sensitive structure includes a semiconductor structure and a layer stack disposed on the semiconductor structure having a doped intermediate layer including a doping material and a first metal oxide material. The semiconductor structure is configured to change an electric characteristic based on a contact of the ion-sensitive structure with an electrolyte including ions.

The invention provides a magnesium air battery cathode. The novel magnesium air battery cathode comprises a porous current collector treated with anticorrosion treatment; a surface of the porous current collector is a catalyst layer, and the other surface of the porous current collector is a porous hydrophobic layer, which is prepared from a ventilating waterproof material. The porous hydrophobic layer is prepared by hot pressing of a porous material or by preparing apertures on a hydrophobic material through a phase transfer method or a template method; the catalyst layer is prepared by coating a paste made from a mixture of catalyst, solvent, dispersant and binder on the current collector and curing; the catalyst is formed by immobilization and activation of a catalyst precursor, and the catalyst precursor is characterized by being a closely arranged plane polymerization phthalocyanine complex shown as below. Employing the cathode, the magnesium air battery has better performances.

The invention belongs to the technical field of organic light-emitting materials, and particularly discloses a class of phthalimide organic light-emitting materials with aggregation-induced emission and linear force stimulation-light-emitting color change response, and application thereof. The light-emitting material comprises an asymmetric D-A-pi-D' or D-A-pi-A' structure, wherein a first electron donor (D) unit is phenothiazinyl or diarylamino, a first electron acceptor (A) unit is a rigid phthalimide group, the pi bridge is disubstituted phenyl, a second electron donor (D') unit is carbazolyl or substituted carbazolyl, and a second electron acceptor (A') unit is cyano. According to the invention, the organic light-emitting material has the linear force-induced color change characteristics of aggregation-induced emission and multi-stimulus response, and has wide application prospects in the fields of pressure sensors, optical data storage, memory chips, anti-counterfeiting marks and the like.