1880 results about "Soluble polymer" patented technology

Provided are aversive coatings and electrochemical cells with at least a portion of the exterior surface coated in the aversive coating to deter children from eating the electrochemical cell. Described are compositions and methods for preparing electrochemical cells coated in aversive coatings with ratios of aversive taste agent to water-soluble polymer that adequately adhere the aversive coating to the electrochemical cell.

Described herein are methods, compositions and articles of manufacture involving neutral conjugated polymers including methods for synthesis of neutral conjugated water-soluble polymers with linkers along the polymer main chain structure and terminal end capping units. Such polymers may serve in the fabrication of novel optoelectronic devices and in the development of highly efficient biosensors. The invention further relates to the application of these polymers in assay methods.

The present application provides a tableware detergent tablet, and methods for preparing and using the same, the tableware detergent tablet is made of the following components in parts by mass: water-soluble polymer 15-35 parts, anionic surfactant 10-25 parts, nonionic surfactant 5-20 parts, forming additive 0.3-5 parts, polyol detergency promoter 1-10 parts, water softener 1-10 parts, anti-stain dispersant 1-10 parts, enzyme formulation 0.1-5 parts, polymer cleaning co-agent 0.3-3 parts, essence 0-1 part, and preservative 0-1 part.

The invention relates to the technical field of papermaking, in particular to a papermaking filler wrapping agent and a preparation method and application thereof. The papermaking filler wrapping agent comprises a cationic polyester polyacrylamide emulsion and a high molecular weight water-soluble polymer. The papermaking filler wrapping agent has the advantages that the papermaking filler wrapping agent is insensitive to shearing action, the retention rate of filler such as calcium carbonate is high, the paper strength is not reduced, and produced paper products are good in batch stability.

The invention discloses a method for improving the loading capacity of a honeycomb-shaped catalytic carrier and preparation of a denitration catalyst based on the catalytic carrier. The preparation method comprises the following steps: firstly, preparing a honeycomb-shaped catalytic carrier by utilizing natural silicon-aluminum minerals, selecting water-soluble polymer bundle-shaped fibers as a structure manufacturing agent, and performing pretreatment by adopting two working procedures of alkali liquor etching and structured water dissolution to obtain a clay-based honeycomb-shaped catalytic carrier; and then, completely immersing the catalytic carrier into the molecular sieve-based coating slurry, dipping and coating twice, and roasting to obtain the high-load molecular sieve-based coating type honeycomb-shaped integral denitration catalyst. The honeycomb-shaped catalytic carrier is subjected to structural adjustment, and an inner wall channel is effectively widened, so that during subsequent denitration catalyst preparation, the contact time and the contact area of molecular sieve-based coating slurry are increased, the problem that the slurry is difficult to adhere is solved, the hole blocking phenomenon and the slurry hanging phenomenon are reduced, the slurry loading rate of the catalyst is increased, and the denitration catalyst preparation efficiency is improved. The catalytic activity is improved.

The invention belongs to the technical field of water-soluble polymer synthesis and drilling fluid application, and relates to a salt-resistant and high-temperature-resistant polymer micro-manganese dispersing agent as well as a preparation method and application thereof. The invention relates to a preparation method of a salt-resistant and high-temperature-resistant polymer micro-manganese dispersant. The preparation method comprises the following steps: dissolving a carboxylic acid-containing monomer and a sulfonic acid-containing monomer in deionized water; dropwise adding a first functional monomer and a second functional monomer, and then adjusting the pH to be neutral to obtain a mixed solution; introducing nitrogen and heating, adding an initiator aqueous solution after the mixed solution is heated to a preset temperature, and obtaining a polymer solution after the reaction is finished; and dropwise adding the polymer solution into a mixed solution of ethanol and acetone, and filtering to obtain the salt-resistant and high-temperature-resistant polymer micro-manganese dispersing agent. The salt-resistant and high-temperature-resistant polymer micro-manganese dispersing agent is small in dosage and good in effect, when 40% potassium formate water and the micro-manganese content are 36%, only 0.2 wt% of the dispersing agent is used, hot rolling can be conducted for 16 h at the temperature of 210 DEG C, and the viscosity reduction effect is kept to be 40% or above.

To provide an oil-based solid composition for external use having excellent stability. An oil-based solid composition for external use is prepared that comprises: (A) an oily component with a melting point of 55° C. or higher; (B) a polyhydric alcohol; and (C) an acrylic acid-based water-soluble polymer.

The invention belongs to the field of nano material preparation, and particularly relates to a preparation method of nanoscale silicon dioxide alcohol-soluble sol. The method comprises the following steps: dissolving a water-soluble polymer in an ammonia water solution, and then adding absolute ethyl alcohol to form a polymer micelle; adding tetraethyl orthosilicate into the micelles, obtaining a nanoscale silicon dioxide nanoparticle mixed solution after the reaction is finished, then dispersing the nanoscale silicon dioxide nanoparticle mixed solution in deionized water through centrifugation, then centrifuging to obtain pure silicon dioxide particles, dispersing the pure silicon dioxide particles in absolute ethyl alcohol, adding a silane coupling agent KH570 at the same time, and performing ultrasonic dispersion to obtain the nanometer silicon dioxide nanoparticles. And carrying out ultrasonic dispersion to obtain the nanoscale silicon dioxide alcohol-soluble sol.

The invention discloses a composite conductive paste transfer film, a photovoltaic electrode grid line preparation method and a photovoltaic cell, and relates to the technical field of photovoltaic cells. According to the preparation method of the composite conductive slurry transfer printing film, high-precision impressing forming, transfer printing, dissolving and other technologies are adopted for a PVA film, and composite conductive slurry is adopted, so that precise electrode design is achieved on a crystal silicon wafer. The high-precision impressing technology and the transfer printing technology are applied to preparation of the photovoltaic electrode grid line, and the precision and the resolution ratio of the electrode grid line can be greatly improved. Compared with a traditional single silver paste grid line, the use amount of silver paste can be reduced and the industrial cost can be reduced on the basis of achieving higher photoelectric conversion efficiency by using the composite conductive paste. The PVA film with proper thickness and hardness is directly used as a substrate to complete transfer printing, a conventional complex structure of a transfer printing substrate film and a water-soluble polymer coating is replaced, and the problems that the silicon wafer is damaged and the grid line structure is influenced due to the fact that the subsequent substrate cannot be easily separated from the crystal silicon wafer can also be solved.

The invention relates to the technical field of tunnel engineering building materials, in particular to a double-slurry synchronous grouting material based on shield silty-fine sand and a preparation method of the double-slurry synchronous grouting material based on shield silty-fine sand. The liquid A is prepared from, by weight, 20%-30% of cement, 30%-50% of shield silty-fine sand, 5%-10% of bentonite, 5%-15% of mineral admixture, 0.1%-0.5% of stabilizer and 20%-30% of water, and the stabilizer is a water-soluble high-molecular polymer; the solution B is a water glass solution, and the volume ratio of the solution A to the solution B is (10-15): 1; the double-slurry synchronous grouting material further comprises a retarder and a coagulant, the retarder is citric acid, and the coagulant is a nano Ca (OH) 2 crystal nucleus. Bidirectional and gradient regulation and control of the gelation time between 5s and 100s can be realized through the coagulant and the retarder, and diversified requirements of different geological conditions and construction progress on slurry operation time are met.

The invention relates to a betaine type double-tailed hydrophobic association polymer fracturing thickening agent and a preparation method thereof. The thickening agent is prepared by the following steps: copolymerizing four monomers, namely acrylamide, 2-allyl methylamino sodium ethanesulfonate, methyl diallyl hydroxypropyl sulfobetaine and double-tailed long-chain alkyl allyl sulfoethyl betaine to form gel, chopping, hydrolyzing, neutralizing and purifying. The preparation method comprises the following steps: firstly adding distilled water, adding acrylamide, 2-allylmethylamino sodium ethanesulfonate, methyldiallyl hydroxypropyl sulfobetaine and other remaining raw materials, adjusting the total concentration, introducing N2 to remove oxygen, adding an initiator, reacting to prepare gel, chopping the gel, and hydrolyzing to obtain the water-soluble polymer. The fracturing thickening agent has good water solubility and shows good salt resistance in mixed saline water with the mineralization degree larger than or equal to 30000 mg / L, a prepared linear solution and jelly formed after crosslinking have high viscosity retention capacity at the temperature of 150 DEG C and the shearing rate of 170 s <-1 >, and the actual construction requirement for fracturing yield increase with the on-site mineralization degree larger than or equal to 30000 mg / L is met.

Provided are: a high-quality microneedle preparation containing collagen as a main component; and a method for producing the microneedle preparation. A microneedle preparation containing collagen and one or more pH regulators as essential components; a microneedle preparation which further contains, as an essential component, one or more types of carboxyl group-containing water-soluble polymers; also provided is a method for producing a microneedle preparation, which comprises: a step for preparing an aqueous solution at 37 DEG C or less from a raw material that contains collagen and one or more pH regulators and, if necessary, one or more carboxyl group-containing water-soluble polymers, and preparing a microneedle raw material solution in which the content of collagen in the aqueous solution is 5 mass% or less; and a step for filling a mold with the microneedle starting material liquid and drying the microneedle starting material liquid.

Methods, systems, and apparatuses for forming dissolvable cleaning products. The dissolvable cleaning products may be formed by forming a first component solution by mixing ingredients in a first mixer. The mixing may be suspended and the first component solution may be allowed to rest for a first holding period. A second component solution may be formed by mixing ingredients in a second mixer. The mixing may be suspended and the second component solution may be allowed to rest for a second holding period. The first and second component solutions may be mixed together and one or more of enzymes and preservatives and a water-soluble polymer may be added to form a final solution. Optionally one or more fragrances may be added. The final solution may be transferred to a mold and dried to a predetermined moisture content. The dried final solution may be cut into one or more shapes.

The invention discloses a foam concrete nano foaming agent and application thereof, and belongs to the technical field of concrete materials. The foam concrete nano foaming agent is composed of the following components in percentage by mass: 10-50% of cellulose; 10%-50% of a water-soluble polymer material; 5%-30% of a surfactant; and 5%-30% of nanoparticles. The foam concrete nano foaming agent provided by the invention has the advantages of low cost and good foaming effect. Nano foam generated by foaming of the foaming agent is high in stability, and when the foaming agent is applied to preparation of a foam concrete material, the foam concrete is wide in dry density range and low in collapse rate, has good mechanical properties, flowing properties, dry shrinkage properties, stability and heat insulation properties, and is wide in application prospect. The method is suitable for the fields of building materials, housing construction, road and bridge engineering, cast-in-place backfill engineering, pit goaf backfill, garbage burying and the like.

The invention provides a porous fiber membrane with a multistage pore channel structure and a preparation method thereof.The preparation method comprises the steps that soluble polymers are dissolved in corresponding solvents, then dispersed EVOH nanofibers are added, and a mixed solution of the polymer solution and the EVOH nanofibers is obtained; injecting the mixed solution into a rotationally stirred non-solvent coagulating bath containing a cross-linking agent at a certain rate by using an injector, performing phase separation on the mixed solution, forming porous fibers under the action of centrifugal force, and dispersing the porous fibers in a non-solvent to obtain a porous fiber dispersion liquid; and finally, coating the porous fiber dispersion liquid on a non-woven base material, performing auxiliary film formation under the action of negative pressure, and drying to obtain the porous fiber film with the multilevel pore channel structure. The prepared porous fiber membrane with the hierarchical porous channel structure not only has micron-sized porous channels, but also has nano-sized porous channels with different sizes on the surfaces of the porous fibers forming the membrane channels, shows higher loading capacity and lower mass transfer resistance, and is suitable for the field of adsorption separation.

According to one aspect of the invention, there is provided a pressure relief valve comprising a body (1) configured to be fastened to a flexible packaging material. The body has at least one through-hole (14) forming a passage through the body; the valve diaphragm (2) rests from the packaging side to the body in a region located around the bore (14); and a sealing liquid located between the main body (1) and the valve diaphragm (2). The valve comprises a water-soluble polymer, which means that at least one component of the valve, such as the body (1), is made of a polymer composition comprising a water-soluble polymer.

The invention discloses a silicon wafer polishing composition and application thereof. The silicon wafer polishing composition comprises silicon dioxide hydrosol subjected to special treatment, organic alkali, a pH regulator, an anionic water-soluble polymer and water. According to the silicon wafer polishing composition, the conventional alkaline silica sol is subjected to special treatment, particle residues on the surface of the polished silicon wafer can be greatly reduced, and compared with the prior art, the silicon wafer polishing composition has remarkable advantages.

The invention discloses a functional cross-linking agent and a preparation method and application thereof, and relates to the technical field of oilfield chemistry and application, the structure of the functional cross-linking agent comprises a quaternary ammonium salt structure, an ester group and a conjugated non-planar central nucleus, no additional conditions such as illumination, acidic conditions or alkaline conditions are needed, and the functional cross-linking agent has good stability. The self-degradation can be realized under a certain temperature condition. The method is simple and reliable in technology, high in yield and suitable for large-scale industrial production. A three-dimensional network structure is formed through chemical crosslinking, weak bonds in the functional crosslinking agent are broken and the three-dimensional network structure is disintegrated under the action of a built-in catalyst, generated linear low-molecular-weight water-soluble polymers are dissolved in formation water to form low-viscosity fluid, flowback is not needed, and subsequent water injection is not affected; and temporary plugging maintenance and the like of a low-temperature oil field well can be realized.

A slurry composition for a non-aqueous secondary battery functional layer contains a particulate polymer having a glass-transition temperature within a specific range and a water-soluble polymer including a sulfo group-containing monomer unit in a proportion of 3 mass% or more.

The invention relates to an aromatic soluble polymer microneedle as well as a preparation method and application thereof. The preparation method comprises the following steps: adding a zinc acetate hexahydrate aqueous solution and a Tris buffer solution into a eugenol-curcumin mixed ethanol solution to obtain self-assembled carrier-free nanoparticles containing eugenol and curcumin; and dissolving the nano-particles in a soluble hyaluronic acid solution, drying in a microneedle mold, and demolding to obtain the aromatic soluble polymer microneedle. The structure of the aromatic soluble polymer microneedle is that self-assembled carrier-free nanoparticles are wrapped in a soluble hyaluronic acid microneedle. Compared with the prior art, the aromatic soluble polymer microneedle prepared by the invention can overcome skin barrier and quickly absorb moisture and dissolve so as to promote the transdermal absorption effect of active substances; a perfume delivery system is constructed by using the soluble polymer microneedle, so that the biocompatibility is improved, the slow release control capability of the perfume can be effectively enhanced, and a new path is opened up for clinical application of inflammatory diseases.

The invention discloses a chip tantalum capacitor and a packaging method thereof, the capacitor comprises a lead frame and a tantalum core, and the lead frame is connected with the tantalum core through a connecting part. The packaging method comprises the following steps: correspondingly connecting a lead frame, a connecting part and a tantalum core, and then coating a water-soluble polymer material on the connecting part; putting into a mold for mold pressing; soaking in water after mould pressing, taking out, washing and drying; and carrying out electroplating treatment to finish packaging of the tantalum capacitor. According to the invention, a layer of water-soluble polymeric membrane material is coated on the positive and negative electrode lead wire areas of the lead wire frame; the water-soluble polymer material has good adhesion and peelability, so that the epoxy mould pressing flash material can be effectively prevented from being tightly attached to the lead frame in the mould pressing process, the epoxy mould pressing flash material is effectively removed, particularly the flash material is prevented from being tightly attached to the lead frame, the production quality and the product performance are improved, and the production cost is reduced. And the step of treating the flash is omitted.

The invention provides a water-soluble polymer, a preparation method thereof and application of the water-soluble polymer in a composition for grinding, and relates to the field of water-soluble polymers. The structural general formula of the water-soluble polymer is as follows: # imgabs0 #, wherein R1 is at least one of a hydrogen group, a cyanoethyl group and an isobutyronitrile group; r2 and R3 are respectively and independently at least one of alkyl, alkoxy, ester group, carboxylic acid, amide and aromatic ring; n is any natural number. According to the preparation method, proper polymeric monomers can be selected as required to prepare polymers with different functions, and the solubility and functionality of the polymers are improved through a functional group modification method so as to meet different application requirements.

The invention belongs to the technical field of electrochemical batteries, and particularly relates to an aqueous electrolyte capable of being used for a high-rate tin metal negative electrode and a tin-manganese battery. The aqueous electrolyte comprises an acidic solvent, a tin salt and various high-valence metal salts / charged water-soluble polymers, and can also comprise a manganese salt. According to the method, high-valence metal salt / charged water-soluble polymer is added into the aqueous electrolyte, the repulsive force of double electric layers is adjusted by using introduced charged particles, and the distribution of an electric field and a concentration field at an interface is homogenized, so that efficient ion transmission and uniform and compact tin deposition behaviors are realized. Meanwhile, the charged particles can effectively inhibit related side reactions on the manganese positive electrode side, so that the tin metal negative electrode and the tin-manganese battery can have long cycle life and excellent rate capability at the same time. In addition, the water-based electrolyte is low in raw material price and small in dosage, the reaction process is simple and mild, and the water-based electrolyte has good application and development prospects.

The invention discloses an instrument capable of being separated through light control and a preparation method and application of the instrument, and belongs to the technical field of biomedical engineering and flexible electronics. The instrument capable of being separated through light control comprises a flexible substrate layer, an electrode layer and a gel integration layer, the preparation method comprises the following steps: (1) forming an electrode pattern on a silicon wafer through photoetching, and carrying out oxygen plasma treatment to prepare a hydrophilic surface; (2) spin-coating a water-soluble polymer solution to form a sacrificial layer; (3) spin-coating silicone rubber pre-polymerized liquid and curing to form a flexible substrate layer; (4) dissolving the sacrificial layer with water to realize demolding, and embedding a patterned conductive material into the surface to form an electrode layer; and (5) coating the photo-responsive adhesive hydrogel pre-polymerization liquid, and performing cross-linking curing to form a gel integration layer, thereby obtaining the photo-responsive adhesive hydrogel. Through integrated structural design and functional material integration, the brain-computer interface ECoG electrode with high flexibility, high adhesion, high conductivity and controllable debonding capacity and the like is provided, and a technical basis and an application platform are provided for a next-generation intelligent implantable brain-computer system.

A vat photopolymerization process comprises irradiating a resin comprising two or more different types of polymerizable materials and two or more different types of light-sensitive materials, at least two of said two or more light-sensitive materials are selected from radical and ionic initiators, wherein each of the two or more different types of polymerizable materials is polymerized into a different polymeric material by a different initiator of the at least two initiators, wherein one or more of the two or more different types of polymerizable materials is polymerized into one or more soluble polymeric materials that are each partially or fully soluble in a fluid selected from a solvent and a solution, said fluid not present in the resin and in which each of the other polymeric materials are insoluble; wherein said irradiating comprising directing a multiwavelength device or a plurality of light sources generating radiation of different wavelengths in a direction of the resin to initiate or induce selective polymerization of each of the two or more different types of polymerizable materials in different regions of the resin to yield the 3D object; and treating the object in the fluid to cause dissolution of the one or more soluble polymeric materials in the solvent or the solution, maintaining intact each of the other polymeric materials present in the object.

Provided are: a gas-barrier laminate comprising (A) a (A) layer comprising a substrate having an inorganic layer formed on at least one surface thereof and (B) a (B) layer containing a water-soluble polymer, wherein in the (A) layer, the surface where the inorganic layer is formed has a static contact angle with water at 25°C of 20-80 degrees and / or the surface where the inorganic layer is formed has a surface free energy of 41-75 mN / m; and a packaging material. The inorganic layer in the (A) layer is preferably formed by vapor deposition or sputtering and is preferably formed from one or more inorganic substances selected from the group consisting of aluminum oxide, silicon oxide, aluminum, zinc oxide, and magnesium oxide.

The invention discloses an instant recombinant collagen nanofiber mask as well as a preparation method and application thereof. The nanofiber facial mask in the facial mask is a layered substance formed by continuously stacking fibers by taking small-molecular-weight recombinant collagen, high-molecular-weight recombinant collagen and water-soluble polymers as matrixes and utilizing an electrostatic spinning technology, and has the advantages of large specific surface area, high porosity, high active substance loading rate and the like; the active ingredients are attached or embedded into the nanofibers in the form of small particles, so that the absorption efficiency is higher, and the active ingredients can easily permeate into the deep layer of the skin, so that the functions of moisturizing, resisting oxidation, resisting inflammation, resisting aging, whitening, relieving and the like are achieved.

Formulations (e.g., solutions) comprising one or more water-soluble polymer(s), liposomes, and an aqueous carrier, are provided. The provided solutions are useful for rinsing, and / or immersing therein, a contact lens and / or in the treatment of ocular discomfort, for example, an ocular discomfort associated with a contact lens. Also provided are kits comprising the solution and a contact lens; articles-of-manufacturing comprising the solution and configured for dispending the solution; and methods utilizing the solution.

The invention relates to the technical field of concrete compacting agents, and provides an internal doping type self-repairing concrete compacting agent which comprises the following components in parts by weight: 10-15 parts of a water-soluble polymer, 12-18 parts of an expanding agent, 1-3 parts of a shrinkage reducing agent, 2-8 parts of organic fibers, 10-15 parts of a modifier and 30-50 parts of a diluent, the modifier comprises bauxite, diatomite and forsterite powder in a mass ratio of 1: 1: 8-8: 1: 1. According to the technical scheme, the problem that the concrete compacting agent in the related technology is poor in improvement of the anti-permeability performance of concrete is solved.

Provided in the present invention are a high-temperature-resistant filtrate reducer, a water-based drilling fluid and the use of the high-temperature-resistant filtrate reducer in drilling engineering in high-temperature subsurface environments. The filtrate reducer comprises carboxymethyl cellulose and a water-soluble polymer containing epoxy, and an open-loop coupling reaction of carboxyl and epoxy groups in high-temperature environments is utilized to induce in-situ self-crosslinking of carboxymethyl cellulose in high-temperature deep downhole environments, so that the filtrate loss reduction performance of the filtrate reducer at high temperatures is remarkably improved.