46 results about "Copolymer" patented technology

This invention relates to bioadhesive compositions, which are particularly, but not exclusively, useful for making medical electrodes and to medical electrodes based on such compositions. A first bioadhesive composition comprises: 10 (i) 28-60 wt % of a copolymer comprising repeating units derived from one or more monomers selected from olefinically unsaturated sulphonic acids and repeating units derived from one or more olefinically unsaturated carboxylic acids, the ratio by weight of the sulphonic acid units to the carboxylic acid units being from 30:1 to 1:1; 15 (b).

It is an object of the present invention to provide a tire rubber composition excellent in performances such as silica dispersibility and processability. The present invention relates to a tire rubber composition, comprising: a rubber component; silica; and a silane coupling agent, wherein the silica has a CTAB specific surface area of 180 m²/g or more and a BET specific surface area of 185 m²/g or more, and the silane coupling agent is a copolymer comprising units A represented by formula (1) and units B represented by formula (2), and the proportion of the units B is 1 to 70 mol % of the total molar amount of the units A and the units B.

Provided is a filler for affinity chromatography having a high dynamic binding capacity for proteins and having excellent alkali resistance and storage stability. The filler for affinity chromatography of the present invention comprises a porous particle consisting of a copolymer of 40 parts to 99.5 parts by mass of (M-1) a methacryloyl group-containing vinyl monomer that contains a hydroxyl group and does not contain an epoxy group, 0.5 parts to 30 parts by mass of (M-2) an epoxy group-containing vinyl monomer, 0 parts to 59.5 parts by mass of (M-3) a methacryloyl group-containing vinyl monomer which is other than the monomers (M-1) and (M-2), and 0 parts to 25 parts by mass of (M-4) a vinyl monomer other than the monomers (M-1), (M-2) and (M-3) (with the proviso that the total amount of the contents of (M-1), (M-2), (M-3) and (M-4) is 100 parts by mass); ring-opened epoxy group obtainable by ring-opening of epoxy group that is contained in the copolymer; and ligand that is bound to the porous particle.

The invention relates to super-hydrophobic film materials and provides a super-hydrophobic polypropylene film and a preparation method thereof. The super-hydrophobic polypropylene film is characterized in that an isotactic polypropylene-b-polyethylene glycol diblock copolymer serves as a surface modifier to construct a micronano composite structure on the surface of the polypropylene film. The preparation method includes steps: dissolving the isotactic polypropylene-b-polyethylene glycol diblock copolymer in an alkane solvent to obtain a polymer solution, coating to the surface of the polypropylene film by spin coating, putting the polypropylene film subjected to surface modification into a vacuum drying oven, and performing vacuum drying to obtain the super-hydrophobic polypropylene film. The super-hydrophobic polypropylene film and the preparation method thereof have advantages that simplicity in operation is achieved, complex chemical treatment is avoided, and expensive equipment is not needed; the preparation method is high in efficiency, feasible, environment friendly, low in cost and easy for industrialization; the prepared super-hydrophobic polypropylene film has excellent surface structural stability.

The invention discloses a building method of a molecularly imprinted fluorescent probe, wherein the material is Mn:ZnS quantum dot-molecularly imprinted polymer composite microsphere, which is formed by Mn:ZnS quantum dot, a styrene-polyacrylic acid copolymer and template molecule thiabendazole in a copolymerization manner under the ultrasonic action, so as to form a sensing probe with specific recognition after the template molecule thiabendazole is removed. The building method has the advantages that the molecularly imprinted fluorescent probe is designed and built by the Mn:ZnS quantum dot as a fluorescent sensor unit by using a molecular imprinting technique on the basis of the fluorescence resonance energy transfer mechanism; the Mn:ZnS quantum dot and the benzimidazole are subjected to fluorescence resonance energy transfer when the template molecule thiabendazole enters a hole of the Mn:ZnS quantum dot-molecularly imprinted polymer composite microsphere, thus resulting in quenching of emitted orange fluorescent light. Therefore, benzimidazole in the water can be specifically identified by an output change of a fluorescent signal.

The present invention is configured to: form, on a substrate, a neutral layer having an intermediate affinity to a hydrophilic polymer and a hydrophobic polymer; form a resist pattern by performing exposure processing on a resist film formed on the neutral layer and then developing the resist film after the exposure processing; perform a surface treatment on the resist pattern by supplying an organic solvent having a polarity to the resist pattern; apply the block copolymer onto the neutral layer; and phase-separate the block copolymer on the neutral layer into the hydrophilic polymer and the hydrophobic polymer.

The invention provides a ceramic floor tile with diatom mud and a method for manufacturing the ceramic floor tile. The ceramic floor tile comprises a base layer, a surface layer and an adhesion layer. The adhesion layer is arranged between the base layer and the surface layer, and the base layer is made of the diatom mud, feldspar, kaolin, quartz, clay, porcelain clay, moire stone, marble, broken iron, polystyrene and polyacrylate; the surface layer is made of the diatom mud, Kunshan stone, carborundum disc stone, colorants, pebble, glass cloth, plastic particles, polyurethane, ethylene-ethylic acid ethylene copolymers, silicon dioxide and aluminum oxide. The ceramic floor tile and the method have the advantages that the ceramic floor tile is made of nontoxic and pollution-free raw materials, and the diatom mud which is a main material is easy to obtain, is natural and pollution-free and has diversified sterilization, disinfection and waterproof merits; the ceramic floor tile is made of the easily available materials, processing and manufacturing processes are simple, and the ceramic floor tile manufactured by the aid of the method is high in smoothness and quality.

The invention discloses novel cleaning fluid. The novel cleaning fluid comprises (a) quaternary amine hydroxide, (b) alcohol amine, (c) solvent, (d) silane (e) boric acid ester (borate) and (f) a star-shaped copolymer containing pigment affinity group. The photoresist stripping fluid takes silane, boric acid ester and the star-shaped copolymer containing pigment affinity group as the main metal corrosion inhibitor, so that the base materials, such as metal aluminum, copper and the like can be effectively prevented from being etched basically in compounding and in use; meanwhile, the stripping fluid can effectively remove the photoresist from a wafer, and can directly rinse the cleaned wafer by water. Therefore, the novel cleaning fluid has wide application prospects in metal cleaning, semiconductor wafer cleaning and other microelectronic fields.

The present invention discloses a decomposable environmentally-friendly heat-insulation packaging bag which comprises the following parts by weight of raw material components: 20-40 parts of straw fiber, 10-15 parts of rice husk powder, 10-15 parts of acrylate-1 and 1-dichloroethylene copolymer, 1-2 parts of zinc gluconate, 1-2 parts of gelatin, 2-8 parts of aluminum hydroxide, 2-6 parts of potassium hydroxide, 13-15 parts of furfuryl alcohol resin, 2 5 parts of zinc oxide, 0.5-1 part of talc powder, 5-6 parts of wax, 1-3 parts of silica powder, 2-4 parts of tetrahydrofuran, 8-13 parts of polyethylene, 0.5-1 part of nano-organic montmorillonite, 2-6 parts of silicon oxide powder, 2-4 parts of a foaming agent and 2-4 parts of clay. The decomposable environmentally-friendly heat-insulation packaging bag takes the environmentally friendly materials, is green and environmentally-friendly, has heat-insulation effect, and is suitable for cooked food packaging.

The invention discloses an oxidation-resistant polymer film with memory function. The oxidation-resistant polymer film with memory function is prepared from carboxylated graphene oxide, nano silicon dioxide, modified kudzu root starch, nano silver, curcumin, proanthocyanidin, vinyl triguaiacyl trimethoxy silane, epoxy soybean oil, nitrile-butadiene rubber powder, tetramethylsilane, dodecylbenzene sulfonic acid, paraffin oil, meerschaum wool, metallocene polyethylene and a polypropylene random copolymer. The polymer film has the advantages of simple components, low cost, no toxicity, no corrosiveness, no impurity, bright surface, impact resistance and tear resistance, is non-combustible, has favorable service performance, and is green and environment-friendly. The polymer film has low ash content, and can enhance the electric properties and high cleanliness of capacitors. The polymer film has excellent heat resistance, is non-combustible, and has high electrochemical activity. The polymer film has high oxidation resistance and stable performance, and thus, can obviously enhance the user stability and service life of the capacitors. The polymer film has the characteristics of high mechanical properties, acid/alkali resistance, corrosion resistance and high recoverability.

The invention relates to a preparation method of a ternary terbium complex monomer and a copolymer luminescent material of the ternary terbium complex monomer and MMA. The method comprises the steps that firstly, the ternary terbium complex monomer is prepared, and recrystallization is conducted on an initiating agent AIBN (azodiisobutyronitrile) through methyl alcohol; then the ternary terbium complex monomer is dissolved by utilizing DMF (N,N-dimethylformamide) and DMSO (dimethyl sulfoxide) or a toluene solvent respectively, wherein the molar ratio of the ternary terbium complex monomer to the MMA is 1-10 to 100, and the initiating agent AIBN accounts for 0.5%-1% of the total mass of an initiating system; after reaction is conducted for 20-60 h under the conditions that inert gas argon exists, water and oxygen do not exist, and the temperature ranges from 50 DEG C to 85 DEG C, copolymer powder is obtained through methyl alcohol reprecipitation. The copolymer can be used for electronic terminals such as computers, televisions and mobile phones and mainly serves as the luminescent material of the panel display field. In addition, due to the fact that a pendant group -N-H- of the copolymer contains a reactive hydrogen atom, the copolymer can be used for ion recognition and fluorescent probes.

Curved lenses configured to decode three dimensional content and method of fabricating the same. The lenses comprise a polyvinylalcohol polarizer film laminated with triacetate on both sides, wherein the polarizer film has a polarizing efficiency equal to or exceeding 99% and a transmittance percentage equal to or exceeding 35% and a retarder film (e.g., norbornene copolymer resin) laminated on a front surface of the polyvinylalcohol polarizer film laminated with triacetate and aligned to produce a desired circular polarization responsive to specified retardation wavelengths.

A non-photosensitive resin composition including: a self-cross-linkable copolymer having structural units of Formulae (1) and (2):

wherein each R⁰ is independently a hydrogen atom or methyl group; X is an —O— group or an —NH— group; R¹ is a single bond or a C_1-6 alkylene group; R² is a C_1-6 alkyl group; a is an integer of 1 to 5, b is an integer of 0 to 4, and when a and b satisfy 1≦a+b≦5, and b is 2, 3, or 4, such R² optionally differ from each other; R³ is a divalent organic group of Formula(I), Formula (II), or Formula (III), and R⁴ is an organic group having an epoxy group:

wherein c is an integer of 0 to 3, d is an integer of 1 to 3, and each e is independently an integer of 2 to 6; and a solvent.

The invention discloses a high-temperature-resistant and corrosion-resistant waterproof board for tunnels and a production process of the high-temperature-resistant and corrosion-resistant waterproof board, and relates to the technical field of waterproof materials. The high-temperature-resistant and corrosion-resistant waterproof board adopts high-density polyethylene (HDPE) as main raw materials, adopts polypropylene random copolymer (PPR) and carbon black containing antioxidant as auxiliary materials, and is of a combined structure with an upper layer and a lower layer, the upper layer adopts the HDPE, the PPR and the carbon black containing the antioxidant, the lower layer adopts the HDPE, the PPR and the carbon black, and the waterproof board is manufactured through processes of parallel material-mixing extrusion, double-flow flat die co-extrusion and three-roller press polish in an attaching mode. The corrosion-resistant performance, the high-temperature-resistant performance and the ageing-resistant performance of the waterproof board are effectively improved, and therefore the waterproof board is suitable for the environment of the tunnels with high ground temperature. The waterproof board is of the combined structure with the upper layer and the lower layer, when the waterproof board is laid on site, the upper layer is tightly attached to hole walls and the lower layer faces outwards, and therefore convenience is brought to construction of the tunnels and other waterproof underground engineering.

The invention discloses a polyester/polyethyleneglycol block copolymer containing hydroxyl pendant group and application of the polyester/polyethyleneglycol block copolymer. The copolymer is an ABA type, (AB)2-100 type, AB type or BAB type block copolymer composed of the hydrophobic polyester block A containing the hydroxyl pendant group and the hydrophilic polyethyleneglycol block by mass ratio. The copolymer can be assembled into nano-particles in a water medium and used for entrapping drugs, protein, polypeptide and polysaccharide, and can also react with active functional groups to obtain other functional copolymers. The copolymer has good biological compatibility and biodegradablility, is easy to be assembled to form the nano-particles in water, and can be used as a carrier of drugs. The hydroxyl of the polyester block is an active group and can be subjected to bonding reaction with various biological factors, drugs or other functional groups, and therefore, application range of the nano-particles is expanded.

The invention relates to the technical field of coatings, and concretely relates to a photovoltaic glass panel surface layer anti-damping coating and a preparation method thereof. The photovoltaic glass panel surface anti-damping coating comprises, by weight, 8-20% of fluorosilicone copolymer resin, 5-12% of silica, 2-8% of a dispersant, 1-5% of a penetrant, 0.5-2% of an antifoaming agent, 1.5-5% of a leveling agent, and the balance of a diluent. The photovoltaic glass panel surface anti-damping coating has a water repellency reaching 95%, has a great water contact angle reaching 130 DEG or more and has a rolling angle being less than 20 DEG, so the coating has a good self-cleaning ability and a light transmittance of 98% or more under rain erosion, and also can guarantee the photovoltaic conversion rate on the premise of a self-cleaning effect. The preparation method of the photovoltaic glass panel surface anti-damping coating has the advantages of simplicity, low cost and high efficiency.

The invention discloses wear-resistant and high-temperature resistant capacitor aluminum case film coating paint and a preparation method thereof. The wear-resistant and high-temperature resistant capacitor aluminum case film coating paint is mainly obtained through mixing and stirring compounds A and compounds B in raw materials according to certain weight parts, wherein the compounds A consist of polyurethane polyatomic alcohol, ethyl ketone, paraffin, isopropanol, polymethyl-benzene gadoleic acid methyl ester and attapulgite, and the compounds B consist of phenolic resin, dimethyl silicone polymer, acrylic ester copolymer modifying agents, straw ashes, silane coupling agents, 6-tertiary butyl-3-methylphenol, stearic acid and tetramethylsilane. The wear-resistant and high-temperature resistant capacitor aluminum case film coating paint has the advantages that the recipe is reasonable, the preparation method is simple, the curing effect on a capacitor aluminum case is good, a capacitor is effectively protected, the prepared film coating paint has the heat resistance performance and the wear resistance performance, and the service life of the capacitor is prolonged.

The invention relates to a grease-based epoxy polymer and an epoxy copolymer, and preparation methods thereof. The grease-based epoxy polymer and the epoxy copolymer are prepared from a grease-based monomer based on vegetable oil or fatty acid. The grease-based monomer based on vegetable oil or fatty acid is polymerized or is copolymerized with other monomers to obtain the grease-based polymer orcopolymer, and unsaturated double bonds of the grease-based polymer or copolymer are epoxidized by peroxide to obtain the grease-based epoxy polymer. The grease-based epoxy polymer with different properties can be prepared by controlling the number of the unsaturated double bonds, the polymerization degree of the polymer, the epoxidation degree of the polymer and the proportions of two monomers inthe copolymer in the preparation method. The grease-based epoxy polymer can replace or partially replace a fossil raw material to prepare thermosetting materials and high-performance composite materials.

The invention discloses a block copolymer modified amphipathy polylactic acid composite membrane and a preparation method, and aims to solve the problems of poor hydrophily of polylactic acid materials, a current scheme for improving the hydrophily of the polylactic acid materials has various shortcoming and the like, block polymers of polylactic acid, polyethylene glycol and polylactic acid polyethylene glycol serve as main material substrates, phase separation is induced by the aid of a heat treatment process, surfaces of hydrophilic phases are accumulated, the amphiphilic composite membraneis formed and has a hydrophobic polylactic acid structure, a hydrophilic shell covers the hydrophobic polylactic acid structure, the introduced block copolymer has an excellent interphase link function, and break of a polylactic acid-polyethylene glycol is avoided. The composite membrane has the advantages that the membrane is easy to form, simple in process and low in cost, the mechanical properties of pure polylactic acid are retained when amphipathy is achieved, two-phase regions have good binding force, breaking is not easily caused and the like.

The invention belongs to the technical field of plastic and discloses a shell plastic for computer display screens and a preparation method of the shell plastic. The shell plastic is prepared from, by weight, 35-40 parts of acrylonitrile-butadiene-styrene copolymer, 15-20 parts of polycarbonate, 8-10 parts of polyvinyl chloride, 6-8 parts of polytetrafluoroethylene, 3-5 parts of chlorinated polyethylene, 5-7 parts of silicon rubber, 3-5 parts of polybismaleimide, 5-8 parts of 2-hydroxy-4-octoxydiphenyl ketone, 4-6 parts of molybdenum disulfide, 8-12 parts of red phosphorus, 7-9 parts of melamine polyphosphate, 16-18 parts of calcium carbonate, 10-13 parts of magnesium hydroxide, 7-11 parts of a plasticizer, 2-4 parts of a lubricant, 1-2 parts of a stabilizer and 2-4 parts of an antistatic agent. The shell plastic is simple in preparation, excellent in physical performance and great in fire resistance and high temperature resistance.

The invention discloses a bioactive glass composite film as well as a preparation method and application thereof. The composite film is a thin flaky degradable composite material, and is prepared frombioactive glass powder by using hyaluronic acid and polymer lactic acid-polyglycolic acid as carriers through film forming. The preparation method concretely comprises the following steps of (1) polylactic acid-hydroxyacetic acid end position activation; (2) hyaluronic acid tail end amination synthesis; (3) hyaluronic acid-polylactic acid-hydroxyacetic acid copolymer carrier synthesis; (4) hyaluronic acid-polylactic acid-hydroxyacetic acid copolymer gel dispersion preparation; (5) hyaluronic acid-polylactic acid polymer-bioactive glass composite film preparation. The composite film slowly releases bioactive glass nanometer particles; good biocompatibility is achieved; the long-effect anti-inflammatory effects can be achieved; drug resistance cannot be generated; the periodontium growth ispromoted; the dentinal tubule is sealed; the goal of reducing dentine hypersensitivity after the periodontal surgery can be achieved.

The invention relates to synthesis of an end amino silicone oil modified stryenemaleic anhydride copolymer. The synthetic route comprises the following steps: in a flask, adding 80-100 parts of a stryenemaleic anhydride copolymer and 100-300 parts of a solvent; stirring the mixture at 45-60 DEG C, adding 0.5-10 parts of a catalyst aqueous solution till the materials are fully dissolve; stirring the mixture for 0.5 h; dropwise adding 20-50 parts of an end amino silicone oil solution through a constant flow pump; heating the mixture to 70-90 DEG C after dropwise addition; keeping the temperaturefor 3-6 hours; continuously heating the mixture to 100-150 DEG C; refluxing the mixture for 4-10 hours; exsecting low-boiling-point substances in the system by a water konckout vessel; and after thereaction, drying the mixture to obtain a target product: a polymer elastomer with a maleimide structure on a main chain. The modified novel material has excellent performance of organic silicon, polyolefin and maleimide, has good chemical stability resistance, heat resistance and toughness, and can be applied to the fields of coatings, hot melt adhesives and the like.

The invention relates to an amorphous alpha-olefin copolymer improved paper-based friction material and a preparation method thereof. An amorphous alpha-olefin copolymer is a saturated olefin copolymer to replace low-molecular-weight oil, a plasticizer and the like which are easy to migrate to be blended with many high polymers so as to improve the processability of the material. Especially, the improvement on the high-temperature stability and low-temperature crack resistance of the asphalt material is reported. According to the invention, APAO is introduced into a phenolic resin-nitrile rubber system to improve the fitting property of a friction plate and a pair, so that the friction coefficient is increased, and meanwhile, the low-temperature crack resistance of nitrile rubber is improved. The preparation method comprises the following steps: firstly, uniformly mixing and stirring fibers, filler and water, adding into a paper sheet former to make a paper-based friction material preform, and drying; preparing an organic solution of the amorphous alpha-olefin copolymer to dip the preform, drying, soaking the preform into a mixed solution of nitrile rubber and phenolic resin, and finally performing hot-pressing curing treatment to obtain the paper-based friction material.

The invention discloses an antibacterial and anti-aging denture soft lining material. The material is prepared from a dandelion extract, vinyl silicone rubber, tetraethyl orthosilicate, hydroxy silicone oil, silicon dioxide, a crosslinking agent, an accelerator, an anti-aging agent, barium titanate, zinc oxide, propargyl glycerol monopalmitate, stearic acid, magnesium carbonate, casein, sodium acetate and an ethylene-octene copolymer. According to the denture soft lining material, rubber and plastic are blended, the fitting performance and the elasticity are good, the materials are subjected to banburying and vulcanization molding, demolding is conducted after the materials are cured, and the denture soft lining material is obtained; the denture soft lining material has high elasticity, the water absorptivity is smaller than that of a silicone rubber soft lining material, the cost is low, the solubility is also maintained at a relatively low level, and the biocompatibility of the denture soft lining material is good.