1319 results about "Soluble polymer" patented technology

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 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.

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 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.

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 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.

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 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.

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.

The invention discloses a polylipoic acid-based composite sponge wound dressing and a preparation method and application thereof.The preparation method comprises the following steps that polylipoic acid amide with amino is obtained through disulfide bond ring opening polymerization, and the polylipoic acid amide and an aldehyde cross-linking agent are jointly dissolved in ethyl alcohol to form a solution A; carrying out high-speed shearing, dispersing and foaming on the water-soluble polymer, and freeze-drying to form porous sponge B; the porous sponge B is soaked in the solution A to be subjected to a cross-linking reaction, vacuum drying is conducted, and the polylipoic acid-based composite sponge wound dressing is obtained. The preparation method has the characteristics of simple preparation process, safety and no toxicity, the polylipoic acid with excellent oxidation resistance is introduced into the medical sponge material, the preparation method of the polylipoic acid medical porous structure material is obtained, the oxidation resistance and the wet viscosity of the medical sponge material are improved, and the medical sponge material has good application prospects. The application of the polylipoic acid-based porous material in the fields of hemostatic materials and wound dressings is realized.

The invention discloses a hydrophobic coating with high corrosion resistance and long service life for an offshore photovoltaic support and a preparation method of the hydrophobic coating, and belongs to the technical field of surface protection of the offshore photovoltaic support. The concrete is prepared by mixing the following raw material components in parts by weight: 100 parts of a silicon-aluminum ingredient, 10-30 parts of an alkali activator, 1-2 parts of a water reducing agent, 0.3-1 part of a water-soluble polymer, 1-5 parts of an expanding agent, 0.5-2 parts of a surface modifier and 40-60 parts of water. According to the invention, corrosion ions in the marine environment are effectively prevented from invading, efficient protection of the offshore photovoltaic support and prolonging of the service life are realized, and the later maintenance cost is reduced.

The present invention belongs to the field of biomedical engineering technology, and specifically relates to a hydrogel microfiber carrying pancreatic islet α and β cells, a preparation method and an application thereof; the preparation method comprises: dissolving a photoinitiator in a cross-linked water-soluble polymer solution, filtering and sterilizing, adding pancreatic islet α and β cells to obtain a hydrogel cell prepolymer solution, passing the hydrogel cell prepolymer solution into an inner phase tube, passing an ionically cross-linked aqueous phase solution into an outer phase tube, and adjusting the flow rates of the solutions in the inner and outer phase tubes so that the liquids form a mutually immiscible laminar flow state; in a microfluidic device, after the inner phase solution contacts the outer phase solution, the ionically cross-linked components in the inner phase solution undergo ionically cross-linking with the outer phase solution to preliminarily form hydrogel microfibers, which are then secondary cross-linked by 405nm blue light irradiation to ultimately form hydrogel microfibers carrying pancreatic islet α and β cells.

The invention discloses a double-phase-change flexible film for solar power generation and a preparation method of the double-phase-change flexible film. According to the method, water-soluble polymers such as polyvinyl alcohol, polyvinylpyrrolidone, polyethylene oxide and the like are used as flexible base materials and are physically blended with vanadium dioxide, freeze drying is performed, then phase change heat storage materials such as fatty acid, alkane, polyethylene glycol, paraffin and the like are subjected to vacuum impregnation adsorption, and the double-phase-change flexible film for solar power generation is synthesized. The double-phase-change flexible film synthesized by the method can realize double phase change in the same phase change temperature zone, has a selective intelligent reflection function on near-infrared light before and after phase change, and has relatively high photo-thermal conversion efficiency, and the synthesis method is simple, safe and easy to prepare. Wide application prospects are realized in the aspects of solar power generation, electronic device heat management, intelligent infrared stealth and the like.

A pressure-relief valve includes a main body equipped to be fastened to a flexible package material. The main body has at least one through hole forming a passage through the main body. A valve membrane lies, on a package side, against the main body in a region around the hole, and a sealing liquid between the main body and the valve membrane. The valve has a water-soluble polymer, whereby at least one component of the valve, for example the main body, is made of a polymer composition that includes a water-soluble polymer.

The invention provides a flexible composite electromagnetic shielding film which is of a layered composite structure, an aluminum foil or a copper foil which has a grounding function and focuses on medium and low frequency electromagnetic shielding protection is adopted as a good electronic conductor film layer A, and a polyester film or an ultra-high molecular weight polyethylene microporous film is adopted as a high-strength carrier film layer B; a composite material electromagnetic shielding coating C emphasizing high-frequency protection is formed on the surface of A or B in a coating mode, the thickness of the electromagnetic shielding coating C ranges from 30 micrometers to 600 micrometers, the porosity ranges from 15% to 45%, the electromagnetic shielding coating C comprises single-walled carbon nanotubes and multi-walled carbon nanotubes, and the single-walled carbon nanotubes and the multi-walled carbon nanotubes form a three-dimensional conductive network. The hard carbon micro powder and the ferromagnetic submicron powder have good wave absorbing performance, and the water-soluble polymer adhesive, the surfactant and the nano rubber are added; the film layers or the coatings are bonded together through a film layer D with a bonding function; when the test frequency is between 100MHZ and 25GHZ, the absolute value of the shielding effectiveness SE of the flexible composite electromagnetic shielding film is greater than 40dB.

The invention provides a nicotine oral soluble film with a multi-layer structure, and belongs to the technical field of tobacco products. The nicotine oral soluble film with the multi-layer structure comprises a first film layer and a second film layer, wherein the first film layer comprises a first water-soluble polymer material and a nicotine release substance; the second film layer comprises a second water-soluble polymer material; wherein the first film layer and the second film layer are dissolved under the condition of being in contact with saliva, and the dissolving speed of the first film layer is higher than that of the second film layer.

An article comprising a composite body, wherein the composite body can comprise ceramic particles distributed within a binder. The binder can include a cross-linked polymer of a first polymer and a second polymer wherein the first polymer is a water-soluble polymer, and the second polymer is a water-insoluble polymer. The composite body can have a water stability factor (WS) of at least 70%, and may be adapted for adsorbing and desorbing lithium ions. The composite body can further have a high bulk compression strength of at least 70 N.

To provide a photosensitive element capable of forming a resist pattern excellent in adhesion of the resist pattern to a substrate and plated copper wiring formability.SOLUTION: The photosensitive element includes a support film and a photosensitive resin layer containing a photosensitive resin composition. The photosensitive resin composition contains, based on the total solid mass in the photosensitive resin composition, the following components: (A) 30-70 mass% of an alkali-soluble polymer; (B) 20-60 mass% of compounds having ethylenically unsaturated bonds; and (C) 4.0-10.0 mass% of a biimidazole photopolymerization initiator. The content of a constituent unit derived from benzyl (meth)acrylate in the component (A) is 40 mass% or more based on the whole component (A). The content of a compound having two ethylenically unsaturated bonds in one molecule in the component (B) is 80 mass% or more based on the whole component (B).SELECTED DRAWING: Figure 2

The invention belongs to the technical field of solid-state electrolytes, relates to a water-soluble polymer solid-state electrolyte and a preparation method and application thereof, and particularly relates to a water-soluble environment-friendly polymer composite solid-state electrolyte, a preparation method and a solid-state lithium / sodium battery. The water-soluble polymer solid electrolyte is prepared by preparing the water-soluble block polymer, the metal salt and the fast ion conductor into slurry, blade-coating the slurry on the porous fiber skeleton and drying to form a film, and the water-soluble polymer solid electrolyte is low in preparation raw material cost, free of emission of organic pollutants, good in environmental protection property, prepared under the air condition, free of harsh preparation conditions, suitable for industrial production and suitable for industrial production. Meanwhile, the prepared solid electrolyte has the characteristics of high ionic conductivity and good interface stability, and can be applied to electrochemical devices such as solid lithium batteries and solid sodium batteries.

The present invention provides a preparation for animals, with which a medicine can be retained in an oral cavity of an animal for a sufficient time or a medicine can be released rapidly in an oral cavity of an animal.　The present invention relates to a film preparation capable of adhering to oral cavities of animals, the film preparation having at least one film layer containing a prophylactic or therapeutic medicine for an animal disease and an easily-water-soluble polymer.

Proposed is a method for forming an electroless plating electrode through selective cross-linking layer formation using a laser, specifically, the method includes forming a selective cross-linking layer by sintering a water-soluble polymer thin film layer, which is formed on a substrate by coating, to form a patterned shape thereon using a laser, followed by forming a precise metal pattern by electroless-plating the selective cross-linking layer with copper, nickel, or other metals. The method offers a simple manufacturing process, cost efficiency, and flexibility in manufacturing without being limited by the shape of a substrate, thereby patterns may be formed on various substrates. A catalyst material for electroless plating is mixed with a polymer material to directly cross-link the substrate. Thus, durability is improved but also an electrode may be formed with a substrate by electroless plating simply and in a short time due to use of only a single material.

In a first aspect, a coating solution includes a soluble polymer and a crosslinking precursor. The soluble polymer includes an imide group. The crosslinking precursor includes a first amine group that is either reactive or passivated towards crosslinking and one or more additional amine groups, wherein the one or more additional amine groups has been passivated towards crosslinking such that the crosslinking precursor can be chemically converted, thermally converted, photo-converted or dissociated to form at least two reactive amines. In a second aspect, a process for forming a polymer film includes: (a) casting a coating solution, (b) activating the crosslinking precursor using an external stimulus to form at least two reactive amines and crosslink the polymer, and (c) drying the polymer film. The coating solution includes a soluble polymer, including an imide group, and a crosslinking precursor.