2063results about How to "Inhibition of dissolution" patented technology

The gradient coated stent 150 of the present invention provides a coated stent having a continuous coating 130 disposed on the stent elements. The continuous coating 130 includes a first coating component and a second coating component. The concentration of the first coating component varies continuously over at least part of the thickness of the continuous coating 130. The concentration of the second coating component can also vary over at least part of the thickness of the continuous coating 130. In one embodiment, the concentration of the first coating component decreases in the direction from the stent element towards the outer edge of the continuous coating 130 and the concentration of the second coating component increases in the direction from the stent element towards the outer edge of the continuous coating 130.

A rechargeable lithium metal or lithium-ion cell comprising a cathode having a cathode active material and / or a conductive supporting structure, an anode having an anode active material and / or a conductive supporting nano-structure, a porous separator electronically separating the anode and the cathode, a highly concentrated electrolyte in contact with the cathode active material and the anode active material, wherein the electrolyte contains a lithium salt dissolved in an ionic liquid solvent with a concentration greater than 3 M. The cell exhibits an exceptionally high specific energy, a relatively high power density, a long cycle life, and high safety with no flammability.

The invention relates to a novel carbon-sulfur compound for an anode material of a lithium-sulfur battery and a preparation method thereof. Sulfur is filled into a nano and micron hole of a matrix in an elementary substance way by taking a macroporous carbon material with high pore volume, electrical conductivity and specific surface area as the matrix, and the sulfur and carbon can also carry out combination reaction so as to prepare the novel carbon-sulfur compound of which the sulfur exists in one or more chemical states in a carbon material. The novel carbon-sulfur compound used as the anode material of the lithium-sulfur battery has the advantages that the high pore volume has large contained sulfur contents and can ensure high electric capacity; the small granularity of the sulfur can reduce a conductive distance between ions and electrons and increase the utilization ratio of the sulfur; and the adsorption characteristics of the high specific surface of the carbon material can inhibit a discharging intermediate product from dissolving and moving towards a cathode, reduce the self discharge, prevent a nonconductive discharging product, namely lithium sulfide from largely accumulating outside carbon particles and reduce internal resistance, therefore, the material can improve the specific energy, the specific power and the cycle performance of the lithium-sulfur battery.

An expandable stent having a covering which exhibits the characteristic of being normally dissolvable in blood, but upon being activated, becomes inert to blood. The stent may be placed across the neck of an aneurysm to seal the aneurysm and thereafter the portion of the covering of the stent across the neck of the aneurysm is activated to become inert to blood and the balance of the covering dissolves to permit blood to flow to adjacent vessels.

A magnesium-ion cell comprising (a) a cathode comprising a carbon or graphitic material as a cathode active material having a surface area to capture and store magnesium thereon, wherein the cathode forms a meso-porous structure having a pore size from 2 nm to 50 nm and a specific surface area greater than 50 m2 / g; (b) an anode comprising an anode current collector alone or a combination of an anode current collector and an anode active material; (c) a porous separator disposed between the anode and the cathode; (d) electrolyte in ionic contact with the anode and the cathode; and (e) a magnesium ion source disposed in the anode to obtain an open circuit voltage (OCV) from 0.5 volts to 3.5 volts when the cell is made.

The present invention has for its object to provide a multilayer printed circuit board which is very satisfactory in facture toughness, dielectric constant, adhesion and processability, among other characteristics. The present invention is directed to a multilayer printed circuit board comprising a substrate board, a resin insulating layer formed on said board and a conductor circuit constructed on said resin insulating layer, wherein said resin insulating layer comprises a polyolefin resin.

A wireless terminal is associated with a Basic Service Set (BSS) or an Independent Basic Service Set (IBSS). The wireless terminal notifies the currently associated target of transition into power saving mode, before migrating from the currently associated BSS or IBSS to another BSS or IBSS. Subsequently, the wireless LAN terminal starts searching for another BSS or IBSS which is the next candidate target to be associated with.

Disclosed herein is a method of surface-functionalizing a porous organic-inorganic hybrid material or a organic-inorganic mesoporous material, in which organic substances, inorganic substances, ionic liquids and organic-inorganic hybrid substances are selectively functionalized on the coordinatively unsaturated metal sites of a porous organic-inorganic hybrid material or organic-inorganic mesoporous material, and thus the porous organic-inorganic hybrid material can be used for adsorbents, gas storage devices, sensors, membranes, functional thin films, catalysts, catalytic supports, and the like, and the applications of the surface-functionalized porous organic-inorganic hybrid material prepared using the method to catalytic reactions.

Adsorbents and Methods used for effective removal or concentration or retention and recovery of harmful or valuable dissolved ions and compounds from aqueous systems using quantum size effect on large band gap semiconductors are provided. This invention provides methods for creating surface hydroxyl groups on surfaces of anatase, brookite and rutile large band gap semiconductors which comprise methods of reducing dimensions of individual crystals to the sizes where surface hydroxyl groups are self generated via quantum size effects when they contacted with electrolytes. This invention also provides methods of reproducible preparation of quantum sized effected anatase, brookite and rutile, which comprise in non-batch and continues process in which growth of said crystals is aborted. The invention also provides methods using quantum size effected anatase, brookite and rutile products for treatment of water, comprising rapid and high capacity adsorption of dissolved molecules and ions to the surface of said crystals via surface reaction process between said effect created hydroxyl groups with molecules and ions. Invention in general provides an effective means for treatment of water from harmful contaminants, especially As, P, U, transuranic elements, W, Mo, Cu, Pb, Cd, Co, Ni, Cr and others

The present invention provides abuse-resistant transdermal delivery devices containing an opioid agonist intended for analgesic purposes in pain patients.

The present invention relates generally to a method of blunting the postprandial glycemic response in a human by feeding an induced viscosity fiber system. The invention also relates to an induced viscosity fiber system and the liquid products that incorporate the induced viscosity fiber system. Further, the invention relates to a method of incorporating soluble fiber into a liquid product without the typical negative organoleptic or physical stability issues. The invention also relates to a method of inducing the feeling of fullness and satiety by feeding the induced viscosity fiber system.

The invention discloses a lithium nickel cobalt manganese positive electrode material. The lithium nickel cobalt manganese positive electrode material comprises a lithium nickel cobalt manganese oxide contained core pure phase layer having a thickness of 5-8mum, a surface coat containing oxides, phosphates or fluorides of coating elements comprising Li, Al, Mg, Ti and Zr and having a thickness of 50-100nm, and a superficial doped transition layer positioned between the core pure phase layer and the surface coat, containing doping elements comprising Al, Mg, Ti and Zr or one of rare earth elements and having a thickness of 1-2mum. The lithium nickel cobalt manganese positive electrode material can inhibit the material dissolving in a cycle process without reducing a specific capacity, and has the characteristics of high capability excellent cycle and rate performances, and excellent thermal stability.

Colonic evacuation, treatment of small bowel bacterial overgrowth or irritable bowel syndrome or treating acute or chronic bacterial bowel infection comprises administering an osmotic colonic evacuant in solid form, preferably a mixture of sodium dihydrogen phosphate and disodium hydrogen phosphate or a sulfate based laxative comprising a picosulfate, together with a diluent.

An optical element is used for an exposure apparatus which is configured to illuminate a mask with an exposure light beam for transferring a pattern on the mask onto a substrate through a projection optical system and to interpose a given liquid in a space between a surface of the substrate and the projection optical system. The optical element includes a first anti-dissolution member provided on a surface of a transmissive optical element on the substrate's side of the projection optical system.

A pattern is formed by applying a first positive resist composition comprising a polymer comprising recurring units which become alkali soluble under the action of acid onto a substrate to form a first resist coating, heat treating, exposing, heat treating, developing to form a first resist pattern, applying a pattern surface coating composition comprising a hydroxyl-containing crosslinkable polymer onto the first resist pattern and crosslinking, thereby covering the first resist pattern with a crosslinked polymer film, applying a second positive resist composition thereon, heat treating, exposing, heat treating, and developing to form a second resist pattern.

The method is for controlling a sodium and sulphur balance of a pulp mill while separating lignin from black liquor. Lignin is precipitated by using an acid followed by filtration. The lignin filter cake thus obtained is re-suspended in acidic liquid and dewatered to form a second cake. The filtrate obtained after dewatering of the second cake is returned for washing and suspension of the first cake. Sodium sulphate-rich ESP (electrostatic precipitator) dust produced in the recovery boiler is used in the washing of the precipitated lignin cake.

A method for controlling the sodium and sulphur balance of a pulp mill while separating lignin from black liquor, and also a lignin product or an intermediate lignin product obtainable by the method. The present invention also provides use of a lignin product or an intermediate lignin product for the production of fuel (solid, gaseous or liquid) or materials.

The invention relates to batch crystallization methods for crystallizing an anti-hIL-12 antibody that allows the production of the antibody on an industrial scale, antibody crystals obtained according to the methods, compositions containing the crystals, and methods of using the crystals and the compositions.

The present invention provides for compositions and methods for preparing aqueous insoluble, ductile, flexible silk fibroin films. The silk films comprise silk fibroin and about 10% to about 50% (w / w) glycerol, and are prepared by entirely aqueous processes. The ductile silk film may be further treated by extracting the glycerol from and re-drying the silk film. Active agents may be embedded in or deposited on the glycerol modified silk film for a variety of medical applications. The films may be into 3-dimentional structures, or placed on support surfaces as labels or coatings. The glycerol modified silk films of the present invention are useful in variety of applications such as tissue engineering, medical devices or implants, drug delivery, and edible pharmaceutical or food labels.

Colonic evacuation, treatment of small bowel bacterial overgrowth or irritable bowel syndrome or treating acute or chronic bacterial bowel infection comprises administering an osmotic colonic evacuant in solid form, preferably a mixture of sodium dihydrogen phosphate and disodium hydrogen phosphate or a sulfate based laxative comprising a picosulfate, together with a diluent.

The present invention relates to one kind of waste rubber tyre powder modified asphalt and its preparation process. The waste rubber tyre powder modified asphalt consists of asphalt matrix 100 weight portions, waste rubber tyre powder 10-30 weight portions, compatilizer 1-10 weight portions, dissolution promoter 0.5-30 weight portions, activating modifier 1-40 weight portions and emulsifier 0-5 weight portions. It is prepared through a chemical and physical process including the steps of degrading and activating the waste rubber tyre powder, vulcanizing and cross-linking, stirring and shearing. It is suitable for paving and repairing highway.

The invention relates to a preparation method of cellulose spinning solution, including a mixed solvent with low boiling point, volatile, polar organic solvent as a promoter and the N-methylmorpholine-N oxides (NMMO) of 8-18% moisture content; the cellulose pulp is mixed with the mixed solvent forming a uniform mixed materials; the low boiling point volatile organic solvent is removed from the mixed materials and the low content is lower than 5%, the cellulose of mixed materials is dissolved in the NMMO forming the cellulose spinning solution under heating. The invention is used the promoter delaying swelling and preventing premature dissolution of cellulose to reduce the solvent viscosity, the cellulose is dissolved uniformly, completely, the advantage which the pulp is impregnated directly in the high concentration solvent, and overcomes the abuse of uneven mixed, the used promoter is easy to extract and to recycle.

A slurry for chemical mechanical polishing of Co. The slurry comprises components by weight as follows, Inhibitor 0.01-2%, Oxidant 0-5%, Abrasive 0.1-10%, Complexing agent 0.001-10%, and the rest of water. The pH value of the slurries is adjusted to 3-5 by a pH value adjustor. The inhibitor is chosen from one or more kinds of five-membered heterocycle compound containing S and N atoms or containing S or N atom. The oxidant is one or more chosen from H2O2, (NH4)2S2O8, KIO4, and KClO5. The abrasive is one or more chosen from SiO2, CeO2, and Al2O3. The complexing agent is one or more chosen from amino acid and citric acid. The slurry can effectively prevent Co over corrosion and reduce the polishing rate of Co in the polishing process.

An optical element is used for an exposure apparatus which is configured to illuminate a mask with an exposure light beam for transferring a pattern on the mask onto a substrate through a projection optical system and to interpose a given liquid in a space between a surface of the substrate and the projection optical system. The optical element includes a first anti-dissolution member provided on a surface of a transmissive optical element on the substrate's side of the projection optical system.

The present invention relates to environmental protection engineering technology, and is especially sludge drying and incinerating treatment process. The present invention has effective utilization of heat energy, no exhaust of harmful gas and bad smell, no exhaust of dangerous clinker, simple structure and high burning efficiency of the sludge incinerating system, no need of auxiliary fuel and other advantages.

The invention provides a composite anode of a multi-layer structure for a lithium-sulfur rechargeable battery and a preparation method, which is characterized in that: an anode active substance, a conductive agent, and a binder are uniformly mixed, and then are coated on a current collector, and after coat is dried, a layer of conductive film is sprayed on the surface. The anode surface film is used for conducting and cutting off the sulfur in a cyclic process, thereby effectively raising a first capacity conservation rate of the battery and the cyclic stability.

The surface of a glass substrate withdrawn from a chemically strengthening treatment liquid is processed with a heated acid (for example, a thermal concentrated sulphuric acid at a temperature of over 100 DEG C., or a water soluble organic solvent such as glycerol or polyethylene glycol). Consequently, precipitated fused salt can be effectively removed without damaging the glass substrate and the change in quality of the glass surface can be also prevented at a high level.

The invention discloses a lithium-sulfur battery cathode material and a preparation method thereof. The cathode material is formed by in-situ compositing of a mesoporous metal-organic framework and elemental sulfur. The mesoporous metal-organic frame is of a laminated pore structure consisting of a macro pore, a meso pore and a micro pore, wherein the pores are communicated with one another. The structure can adsorb more elemental sulfur and can simultaneously inhibit the dissolution of sulfur elementary substance and multi-sulfur compounds in electrolyte, so that the cycle performance of a lithium-sulfur battery is improved and high utilization rate of an active substance of the cathode material is kept. A sulfur and metal-organic framework material composite cathode material is prepared by a two-step process of low-temperature liquid phase composition and sulfur extraction, a composite material precursor with homogeneously dispersed high load sulfur content can be obtained through in-situ compositing at a low temperature with a liquid-phase preparation method, redundant sulfur on the surface of the precursor and in pore passages is extracted by an organic solvent, the aperture of the composite material can be further effectively adjusted and controlled, selective distribution of sulfur is realized, and the composite material with excellent electrochemical performance is obtained. By adopting the preparation method, the distribution of the sulfur in the composite material can be effectively improved, and the electrochemical performance of the composite material is optimized. Meanwhile, the preparation method is simple and is easy to perform industrially, and mass production is facilitated.

The invention discloses a preparation method of a nano-network conductive polymer coated lithium iron phosphate anode material. The preparation method is characterized in that: a surfactant is used as a template; and a conductive polymer monomer is subjected to in-situ polymerization on a lithium iron phosphate surface in a low-temperature acid solution medium and a nano-network structure is grown; and thus, the nano-network conductive polymer coated lithium iron phosphate anode material is formed. The special shape of the nano-network conductive polymer is favorable for a current carrier to be conducted among polymer aggregate particles; and the nano-network conductive polymer has high current carrier mobility ratio, and can effectively connect surfaces among lithium iron phosphate particles when coated on the lithium iron phosphate surface to form an effective conductive network, so the lithium iron phosphate conductivity is significantly improved, and the contact resistance and electrode polarization among the particles are reduced to ensure that the electrochemical performance of an electrode material is greatly improved. The preparation method has a simple process and readily-available raw materials, and is suitable for carrying out industrial large-scale production.

The invention belongs to the technical field of lithium sulfur batteries, specifically relates to a sulfur-carbon composite material with a nitrogen-doped porous carbon nanofiber net-shaped structure, as well as a preparation method and an application of the composite material. By taking a polypyrrole net-shaped structure which is synthesized by virtue of a soft template method as a raw material, taking the potassium hydroxide as a pore forming agent, and taking the nitrogen-doped carbon nanofiber net-shaped structure which is synthesized through high-temperature carbonization under nitrogen atmosphere and is in a porous structure as a precursor, the sulphur-carbon composite material which can be used as the anode of the lithium sulfur battery can be prepared through heat treatment with elemental sulfur. The preparation method provided by the invention is simple, and good in reproducibility, and the prepared composite material is uniform in structure distribution, and can be used as the anode of the lithium sulfur battery. Due to the nitrogen doping and the tridimensional net-shaped structure, for the material, the conductivity can be improved, a transmission path of lithium ions is shortened, meanwhile, the dissolving of the sulfur and intermediate product in an electrolyte can be prevented, the electrochemistry performance of a positive material of the lithium sulfur battery is improved, good specific discharge capacity, cycle performance and rate performance can be achieved.