359 results about "Water soluble polymers" patented technology

This provides an improved dissolvable solid article with a specific aspect ratio. Such dissolvable solid article has a multilayer structure comprising two or more flexible, dissolvable, porous sheets, while each of which comprises a water-soluble polymer and a surfactant and is characterized by a Percent Open Cell Content of from 80% to 100% and an Overall Average Pore Size of from 100 μm to 2000 μm. The multilayer dissolvable solid article is characterized by a maximum dimension D and a minimum dimension z; and wherein the ratio of D / z ranges from 1 to 10.

The invention discloses an etching solution and a preparation method and an etching method thereof, and belongs to the technical field of microelectronics and display panel manufacturing. The etching liquid comprises the following components in percentage by mass: 50-70% of phosphoric acid, 5-30% of acetic acid, 5-15% of nitric acid, 0.1-0.5% of a water-soluble polymer, 0.05-0.3% of a boron-containing compound, 0.05-0.5% of an etching control agent and the balance of water. The water-soluble polymer is selected from one or more of water-soluble polymers containing a hydroxyl group, an amide group, an ether bond or a pyrrolidone group. The etching solution contains a specific water-soluble polymer, a protective layer can be formed on the surface of the photoresist, attack of high-concentration acid to the etching solution is effectively inhibited, and the cracking problem is avoided; meanwhile, through the synergistic effect of the boron-containing compound and the azole etching control agent, the etching rate, the slope angle and the key size loss can be accurately controlled, and therefore the excellent etching morphology meeting the requirement is obtained.

Disclosed in the present invention are an aqueous triggered controlled-release saline-alkali soil conditioner and a preparation method therefor. The aqueous triggered controlled-release saline-alkali soil conditioner comprises agent A. The agent A comprises a water-soluble polymer and controlled-release suspended particles. The controlled-release suspended particles comprise alginate / anti-reverse regulator composite particulates. The alginate / anti-reverse regulator composite particulates are obtained by sequentially subjecting an alginate to two-step gel cross-linking by means of a cationic anti-reverse regulator and a high-valent metal ion-containing cross-linking agent. In the present invention, the alginate used as a main material is subjected to charged regulator-based high-speed dispersion for primary gelation and high-valent metal-based secondary gelation, thereby preparing a micron-nano powder and suspension, and incorporating a solvable organic polymer material, the functions of graded release and intelligent regulation of a product are achieved. The incorporation of an organic acid and a phosphoric acid material can not only prevent a micro-irrigation device from scaling but can also achieve triggered controlled-release of the material on demand and in a timely manner, thereby achieving the effects of multi-particle-size dispersion and precise release of the product in soil.

The invention discloses a light epoxy resin-based wave-absorbing material and a preparation method thereof, and the light epoxy resin-based wave-absorbing material comprises the following components in parts by weight: 100 parts of epoxy resin molding compound, 1-6 parts of conductive filler, 20-40 parts of water-soluble polymer and 1-3 parts of foaming agent. The composition is uniformly dispersed in a ball mill, and the closed-cell foaming material with adjustable density is obtained by chemical foaming. And a Fe3O4 / PEDOT wave-absorbing agent is loaded in the holes in situ, so that a multi-layer structure design of'weak current-magnetism-strong current 'is realized in the integrally uniform foaming material. The epoxy resin-based electromagnetic shielding material has the advantages of low density, high electromagnetic shielding, high wave absorbing efficiency, excellent mechanical properties and the like.

The present invention aims to provide a composition with higher ability to enhance early strength development compared to conventional compositions. The present invention relates to an aluminosilicate-containing composition containing: an aluminosilicate; and a water-soluble polymer, the aluminosilicate-containing composition further containing at least one of an amine having a molecular weight of not more than 1,000 or a metal compound.

The invention belongs to the technical field of textile, and particularly discloses a porous polyester fiber and a preparation method thereof.The preparation method comprises the following steps that S1, coffee charcoal powder, bamboo charcoal powder and coconut shell charcoal powder are mixed according to the mass ratio of 1: (0.5-2): (0.1-1) to serve as an antibacterial agent; s2, mixing the antibacterial agent, polyethylene glycol terephthalate and a water-soluble polymer to obtain a blend; s3, the blend is sliced, granulated and subjected to melt spinning, and the polyester fiber is prepared; and S4, washing the polyester fiber with alcohol at room temperature, washing with hot water, and drying to obtain the porous antibacterial polyester fiber. Coffee charcoal powder, bamboo charcoal powder and coconut shell charcoal powder are compounded to form an antibacterial agent, then the antibacterial agent is mixed with polyethylene glycol terephthalate and a water-soluble polymer, slicing granulation and melt spinning are conducted, then the water-soluble polymer is dissolved out through alcohol washing and hot water washing, and the polyester fiber with the antibacterial function and the porous structure is obtained.

According to the present invention, a moderately high polishing speed for a specific material and appropriate ratio of polishing speeds between two or more different materials are achieved in polishing using a polishing composition. The present invention relates to a polishing composition comprising abrasive grains, a water-soluble polymer having no alcoholic hydroxyl group in a side chain, a polyvalent carboxylic acid (salt), and an oxidizing agent, and having a pH of less than 6.

Provided is a water-soluble sheet-like coloring material in which sheets are less likely to stick to each other, have appropriate self-standing property and flexibility, and can be quickly brought into a uniform state when dissolved in water.A water-soluble sheet-like coloring material including a film-forming water-soluble polymer; a dissolution accelerator; a colorant; and a moisture-retaining agent.

Provided is a water-soluble polymer that has a low viscosity and can withstand use in strongly acidic or powerfully oxidizing environments such as in hydrogen peroxide.　A polymer according to the present invention includes a structural unit represented by formula (1) and has a viscosity of at least 10 mPa·s in a 10 mass% aqueous solution. (In formula (1), m and n are 0 or 1, m+n=1, and R1–R5 represent a hydrogen atom, a C1–8 alkyl group or hydroxyalkyl group, or a phenyl group.)

The present invention relates to a hollow fiber membrane made from a blend of poly (aryl ether sulfone) and a water-soluble polymer additive, a process for its manufacture and its use.

The present invention relates to a single-layer or multilayer coated polyester film having a transparency of at least 92%, with the polyester film having a first surface and a second surface, in which a permanent anti-fog coating has been applied to at least one of the surfaces of the polyester film and the anti-fog coating includes at least one water-soluble polymer, an inorganic, hydrophilic material and a crosslinker. The water-soluble polymer is a polyvinyl alcohol or a hydrophilic polyvinyl alcohol copolymer. Furthermore, the present invention relates to production processes for the coated polyester film and to energy saving mats in greenhouses produced therefrom.

The application relates to the technical field of electrochemical building materials, in particular to a cement-based electrolyte reinforced by ion-conducting salt and water-soluble polymer and a preparation method thereof. According to mass fractions, the cement-based electrolyte comprises the following raw materials: cement 1500-2100 parts, ion-conducting salt 60-120 parts, water-soluble polymer 120-240 parts and water 550-700 parts. The cement-based electrolyte reinforced by ion-conducting salt and water-soluble polymer has good mechanical properties and excellent electrochemical properties.

This invention discloses a chemical mechanical polishing (CMP) slurry. The raw materials of the CMP slurry include the following components: a water-soluble small molecule containing a morpholine ring, a water-soluble polymer with a main chain or side chain containing polyoxyethylene chains, an abrasive, an alkaline compound, and water. This technical solution can improve the edge collapse phenomenon of silicon wafers while achieving high flatness in the central region of the silicon wafer, thereby improving the overall surface flatness of the silicon wafer and meeting the needs of silicon wafer flatness in production.

A negative electrode (12) according to an embodiment of the present invention comprises: a negative electrode core (40); and a negative electrode mixture layer (41) that is positioned on the negative electrode core (40), the negative electrode mixture layer (41) containing a negative electrode active material (50) and a water-soluble polymer (51). The water-soluble polymer (51) is present such that an amount of 0.50 mass % or more relative to the negative electrode active material (50) is adsorbed onto the negative electrode active material (50), and an amount of 1.05 mass % or less is separated from the negative electrode active material (50). The negative electrode active material (50) includes a carbon material and a silicon-containing material.

The application discloses a water-soluble polymer-based proton-type memristor and a preparation method thereof. The memristor has a sandwich structure and is sequentially composed of a top electrode, an inorganic resistive switching functional layer, an organic resistive switching functional layer and a bottom electrode. The top electrode is a metal active electrode, the bottom electrode is indium tin oxide (ITO), the inorganic resistive switching functional layer is a metal oxide film, and the organic resistive switching functional layer is a doping system composed of a water-soluble polymer and a doping material. The preparation process of the proton-type memristor is reliable and stable. The obtained memristor has the characteristics of high biocompatibility and green environmental protection. The device performance consistency and environmental dependence are improved, and the simulation of bionic synaptic plasticity is greatly improved. The device can be controlled by using a low voltage, has low power consumption, and has a good bidirectional current modulation effect, so that the device provides a possibility for further enriching synaptic functions and designing flexible wearable devices.

Polishing composition containing abrasive grains, a water-soluble polymer, an aggregation inhibitor and water, wherein the polishing composition is characterized in that, The water-soluble polymer of at least one is selected from the group consisting of cellulose and polysaccharides; The aggregation inhibitor of at least one is selected from a group consisting of vinyl-based water-soluble polymers, oxyalkylene polymers, oxyalkylene copolymers and silicone polymers; and If the mean particle size of the particles contained in the polishing composition is defined as R1, and the mean particle size of the abrasive grains in the case where the abrasive grains are dispersed in water to have the same concentration as the concentration of the abrasive grains in the polishing composition is defined as R2, then R1 / R2 is 1.3 or less.

The invention belongs to the technical field of micro-nano machining, and particularly relates to a hollow metal nano array and a preparation method and application thereof. According to the invention, a regular polymer nano array is prepared based on an ultraviolet light curing nano imprinting technology and a plasma etching technology; then metal evaporation is carried out in combination with an electron beam evaporation dip angle evaporation process, so that the surface of the polymer nano array is partially coated with metal, and a polymer / metal composite nano array with a notch is obtained; and dissolving by using a solvent to remove the water-soluble polymer nano-columns in the polymer / metal nano-array with the notches, so as to prepare the large-area hollow metal nano-array of which the morphology, the size and the period can be flexibly designed. Sulfydryl benzaldehyde molecules are fixed on the surface of the hollow metal nano array to form an SERS (Surface Enhanced Raman Scattering) substrate which is used for detecting hydrazine hydrate. The SERS substrate prepared on the basis of the hollow metal nano array shows high sensitivity, specificity, repeatability and stability.

Provided are: an ink that contains a pigment, water, a water-soluble organic solvent having a boiling point of 200°C or lower, a water-soluble polymer A which contains an acid group, and a water-soluble polymer B which contains an ethylene oxide group and does not contain an acid group, the amount of the water-soluble organic solvent having a boiling point of 200°C or lower being 5-20 mass% relative to the total amount of the ink, the total amount of the water-soluble polymer A and the water-soluble polymer B being 3-8 mass% relative to the total amount of the ink, and the water-soluble polymer A and the water-soluble polymer B both being free within the ink without being adsorbed to the pigment; and the use of the aforementioned ink.

An electrode, a method of producing it, and a fuel cell with such elec- trode In a method of producing electrodes (20), for example for fuel cells, two aqueous coatings (15, 16) are subsequently applied onto a porous hydrophobic electroconductive substrate (10). A first coating containing a sacrificial hydrophilic polymer, for example HEC and / or PPC, is applied for temporarily hydrophilizing the substrate surface. For providing a catalyst layer, CL, a second coating is applied on the first coating. The sec- ond coating comprises an electroconductive filler and a catalyst and water soluble polymeric binders, for example PVA and HPC. By heating the coatings, the sacrificial pol- ymer decomposes and evaporates and binds the catalyst layer to the substrate.

The purpose of the present invention is to provide a composition which is for use in hydraulic materials and attains excellent storage stability. An aluminosilicate-containing composition according to the present invention contains an aluminosilicate, wherein the aluminosilicate is one obtained by reacting an aluminum-containing compound with a silicon-containing compound at a temperature of 30°C or higher in the presence of a water-soluble polymer having at least one functional group selected from among a carboxyl group, a phosphoric acid group, a sulfonic acid group, salts of these, and phosphoric ester groups.

The present invention relates to a fracturing fluid comprising at least one propane and at least one water-soluble polymer obtained from the crystalline form of 2-acrylamido-2-methylpropanesulfonate sodium salt ATBS.Na. The present invention also relates to a method for preparing the fluid and a method of hydraulic fracturing using the fluid.

The present invention relates to a process for the production of microencapsulated natural preservatives and antioxidants, including extracts of walnut leaves and epicarp, the preservatives obtained and their use for preserving fat-containing foods. The natural preservative, in particular water-alcohol walnut epicarp and / or walnut leaf extract, is microencapsulated with a water-soluble polymer (HSP), such as maltodextrin or synanthrin, and wherein the microparticle comprises a channeling agent, which is a fat-soluble polymer (LSP), such as soy isolate protein or CAPSUs. These microparticles provide a controlled release action of the antioxidant and preservative extracts such that their action occurs over time.

An apoptosis-promoting solid dispersion comprises a Bcl-2 family protein inhibiting compound of Formula A as defined herein dispersed in a solid matrix comprising (a) a pharmaceutically acceptable water-soluble polymeric carrier, and (b) a pharmaceutically acceptable surfactant. A method for preparing such a solid dispersion comprises subjecting a compound of Formula A, a water-soluble polymeric carrier, and a surfactant to high temperature treatment to provide an extrudable semi-solid mixture; extruding the semi-solid mixture; cooling the resulting extrudate to provide a solid matrix comprising the polymeric carrier and the surfactant and having the compound substantially non-crystalline form dispersed therein. The solid dispersion is suitable for oral administration to a subject in need thereof to treat a disease characterized by overexpression of one or more anti-apoptotic Bcl-2 family proteins, such as a cancer or an immune or autoimmune disease.

The object of the present invention is to provide an oil-in-water emulsion cosmetic for mist spray that has excellent SPF boosting effect, good stability, and a fresh, non-sticky feel. [Solution] The present invention relates to an oil-in-water emulsion cosmetic composition for mist spray, comprising an aqueous clay mineral together with an ultraviolet absorber, wherein the aqueous clay mineral content is 1.0% to 5%, and which does not contain a water-soluble polymer or an ultraviolet scattering agent.

The present invention is directed to a transparent scalp composition comprising about 0.5% to about 30% by weight of discrete particles, the discrete particles comprising anhydrous particles and an aqueous phase of the transparent scalp composition, the anhydrous particles comprising one or more fatty amphiphiles selected from the group consisting of fatty alcohols, fatty esters, fatty acids, fatty amides, and mixtures thereof, and one or more surfactants selected from the group consisting of cationic, anionic, nonionic, zwitterionic, or mixtures thereof, the anhydrous particles comprising one or more scalp active agents, the discrete particles having a size of about 200 micrometers to about 25,000 micrometers, and an aqueous phase comprising a water-soluble polymer and an aqueous carrier, the transparent scalp composition having a pH of about 3.5 to about 7.0.

A suspension comprising a water soluble polymer suspended as particulates in a nonaqueous liquid is useful for treating water from which contaminant particles need to be removed. The suspension includes mineral oil and at least about 10 wt % of particulate polydiallyldimethylammonium chloride (polyDADMAC) in the form of powder or beads. The suspension can be highly concentrated, for example, up to 80 wt % polyDADMAC. The polyDADMAC can be high molecular weight beads. A method and system for delivering the suspension to flowing wastewater is also described. The method and system can be configured to treat water such as wastewater, wherein the wastewater is generated as a waste stream during various large-scale operations such as mining operations.

Provided are: a method for producing a water-soluble polymer, the method making it possible to produce a water-soluble polymer under mild conditions from an adhesive as waste; a method for producing a water-absorbent polymer, the method making it possible to produce a water-absorbent polymer under mild conditions from an adhesive; a water-soluble polymer that can be produced from an adhesive; and a water-absorbent polymer that can be produced from an adhesive. The method for producing a water-soluble polymer according to an embodiment of the present invention includes bringing an adhesive treatment solution including a liquid having a Hansen solubility parameter of 31 or less and an alkali compound, the concentration of alkali compound in the adhesive treatment solution being 0.001-20 wt%, into contact with an adhesive.

A production method including: a step of forming, on a substrate layer containing a polypropylene resin or a polyester resin, a metal oxide layer by a vacuum film forming process; a step of applying a gas barrier coating layer-forming composition on the metal oxide layer to form a coating film; a step of preheating the coating film by infrared radiation; and a step of heating and thereby curing the coating film preheated by infrared radiation in an atmosphere at 50 to 120° C. to form a gas barrier coating layer, in which the gas barrier coating layer-forming composition contains at least one selected from the group consisting of an alkyl silicon alkoxide and its hydrolysate, and a water-soluble polymer.

Described herein are methods and systems for increasing the injectivity of wells used to inject water or water containing various chemicals such as water-soluble polymers for the purpose of increasing the recovery of hydrocarbons such as crude oil from a hydrocarbon-bearing formation. Injectivity often decreases because of adverse reactions or plugging at or near the wellbore. The treatment procedure involves injecting reducing agents (e.g., sulfite or metabisulfite salts) dissolved in water or water containing other chemicals such as polymers.

Polishing compositions and methods are provided which enable barrier polishing with improved flatness for patterned substrates comprising copper, tantalum, and TEOS. Provided are polishing compositions comprising: an abrasive with a mean particle size (MPS) of 100 nm to 150 nm; a phosphate surfactant; an electronic conductivity (EC) controller; an organic acid; and a water-soluble polymer, wherein a ratio of a concentration of the abrasive to a concentration of the phosphate surfactant is greater than or equal to 50 and less than or equal to 1040.