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81 results about "Poly(methyl acrylate)" patented technology
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Poly(methyl acrylate) (PMA) is a hydrophobic synthetic acrylate polymer. PMA, though softer than polymethyl methacrylate (PMMA), is tough, leathery, and flexible. It has a low glass-transition temperature about 10°C (12.5°C in case of PMA³⁸).
Blends of amorphous and semicrystalline polymers having shape memory properties
InactiveUS20040122174A1High modulusImprovement in critical temperatureDental impression compositionsPoly(methyl methacrylate)Ethyl acrylate
Blends of amorphous and semicrystalline polymers having shape memory properties were prepared by blending a crystalline polymer such as poly(vinylidene fluoride), polylactide, poly(hydroxxybutyrate), poly(ethylene glycol) polyethylene, polyethylene-co-vinyl acetate, poly(vinyl chloride), poly(vinylidene chloride) and copolymers of poly(vinylidene chloride) and poly(vinyle chloride) and an amorphous polymer such as poly(vinyl acetate), poly methyl acrylate, poly ethyl acrylate, atactic poly methyl methacrylate, isotactic poly methyl methacrylate, syndiotactic poly methyl methacrylate and other poly alkyl methacrylates. The method for preparing the polymeric materials and applications thereof, for example, as smart medical devices, are also disclosed.
Owner:UNIV OF CONNECTICUT
Blends of amorphous and semicrystalline polymers having shape memory properties
InactiveUS7208550B2High modulusDental impression compositionsPoly(methyl methacrylate)Glycol synthesis
Blends of amorphous and semicrystalline polymers having shape memory properties were prepared by blending a crystalline polymer such as poly(vinylidene fluoride), polylactide, poly(hydroxxybutyrate), poly(ethylene glycol) polyethylene, polyethylene-co-vinyl acetate, poly(vinyl chloride), poly(vinylidene chloride) and copolymers of poly(vinylidene chloride) and poly(vinyle chloride) and an amorphous polymer such as poly(vinyl acetate), poly methyl acrylate, poly ethyl acrylate, atactic poly methyl methacrylate, isotactic poly methyl methacrylate, syndiotactic poly methyl methacrylate and other poly alkyl methacrylates. The method for preparing the polymeric materials and applications thereof, for example, as smart medical devices, are also disclosed.
Owner:UNIV OF CONNECTICUT
Odor removing environmentally-friendly wood lacquer and preparation method thereof
InactiveCN102634274ASmall smellAvoid residuePolyurea/polyurethane coatingsPoly(methyl acrylate)Chemistry
The invention discloses odor removing environmentally-friendly wood lacquer and a preparation method thereof. The wood lacquer comprises a main agent and a curing agent, wherein the main agent comprises 1) 55 to 75 parts of alkyd resin, 2) 1.5 to 9.5 parts of extinction powder, 3) 3 to 12 parts of polymethyl acrylate, 4) 3 to 18 parts of castor oil resin, 5) 5 to 15 parts of butyl acetate and ethyl acetate, and 6) 0.3 to 1.5 parts of aid; the curing agent comprises 1) 10 to 25 parts of butyl acetate, 2) 15 to 25 parts of ethyl acetate, 3) 10 to 20 parts of isocyanate trimer curing agent, and 4) 20 to 40 parts of isocyanate adduct curing agent; and the mass ratio of the main agent to the curing agent is 1:(0.3-0.8). The wood lacquer keeps protection and decoration functions, and can be used for radically eradicating harmful substances such as benzene, mixed benzene and free toluene diisocynate (TDI); and a lacquer film is dried more thoroughly, residue of volatile substances in the lacquer film is reduced, and least odor can be achieved in shortest time.
Owner:TIANJIN YUBEI PAINT
Lithium ion battery diaphragm coating, and preparation method and application thereof
ActiveCN106221480ALower thermal closure temperatureImprove securityFireproof paintsCell component detailsElectrical batteryPolystyrene
The invention discloses a lithium ion battery diaphragm coating, and a preparation method and application thereof. The battery diaphragm coating is a coating which coats the surface of the lithium battery diaphragm by a spin-coating method. The lithium ion battery diaphragm coating is prepared by the steps of: coating the surface of modified SiO2 which serves as a core with a macromolecular copolymer by emulsion polymerization to obtain a nanoparticle emulsion with silicon dioxide coated by a shell-core polymer; and thickening by hydroxyethyl cellulose, wherein the macromolecular copolymer is a polystyrene / poly butyl acrylate or polystyrene / polymethyl acrylate copolymer. The coating prepared by the method provided by the invention has low-temperature thermal shunt-down and high-temperature shrinkage-resistant double-protection functions on the lithium battery diaphragm, improves the safety of the lithium ion battery and can be widely applied in the field of the lithium ion battery diaphragm.
Owner:GUANGDONG UNIV OF TECH
Blends of amorphous and semicrystalline polymers having shape memory properties
InactiveUS20070135578A1High modulusDental impression compositionsPolyethylene glycolPoly(methyl methacrylate)
Owner:UNIV OF CONNECTICUT
Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof
ActiveCN104804023AReduce distanceReduce distance variationGroup 1/11 organic compounds without C-metal linkagesCopper organic compoundsSynthesis methodsRoom temperature
The invention provides a thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as a synthesis method and application thereof and relates to a thermotropic fluorescent color-variable coordination polymer as well as a synthesis method and application thereof. The thermotropic fluorescent color-variable coordination polymer containing [Cu414(C14H14N4)2]n clusters is used for solving the technical problems of single emitted light color, short fluorescent life and high raw material cost of an existing thermotropic fluorescent color-variable material. The thermotropic fluorescent color-variable coordination polymer containing [Cu414(C14H14N4)2]n clusters has a molecular formula of [CU414(C14H14N4)2]n, and has a structural formula as shown in the specification. A preparation method comprises the following steps of mixing raw materials; heating with water; cooling; filtering; drying. The method has the beneficial effect that the yield is about 60%. The polymer presents yellow fluorescence at room temperature, and is good in single color property; a thermotropic fluorescent color-variable material capable of changing yellow fluorescence into red fluorescence is obtained by virtue of regulating different temperatures. The polymer is doped into polymethyl acrylate, so that the strength is improved, raw materials are easily available, the preparation method is simple, and the polymer can serve as a raw material for a fluorescent material film.
![Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof](https://images-eureka.patsnap.com/patent_img/d993c604-8784-42a1-bfac-6d04c00d953b/HDA0000715770300000011.PNG "Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof")
![Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof](https://images-eureka.patsnap.com/patent_img/d993c604-8784-42a1-bfac-6d04c00d953b/HDA0000715770300000012.PNG "Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof")
![Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof](https://images-eureka.patsnap.com/patent_img/d993c604-8784-42a1-bfac-6d04c00d953b/HDA0000715770300000021.PNG "Thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as synthesis method and application thereof")
Owner:HARBIN INST OF TECH
Road waste asphalt regenerant and preparation method
The invention discloses a road waste asphalt regenerant and a preparation method. The regenerant comprises base oil, a plasticizer and a reinforcer, wherein the ratio of the three components is 1:1:1. The base oil is waste engine oil, the plasticizer is 6101 epoxy resin and the reinforcer is polyacrylic ester which is prepared from polymethyl acrylate, polyethyl acrylate and polybutyl acrylate in the ratio of 1:1:1. The preparation method comprises the following steps: mixing certain amount of road ageing asphalt and 10-25 percent of the road waste asphalt regenerant together; stirring and evenly mixing under the condition of 140 to 160 DEG C to obtain the road regenerated asphalt. The regenerant is used to directly save a large amount of sandstones and asphalt resources, and effectively save a large amount of land resources occupied by exploring the sandstones and waste materials at the same time; and a main raw material of the road waste asphalt regenerant is the waste engine oil which has low prices, so the road waste asphalt regenerant has certain commercial value.
Owner:BEIJING UNIV OF CHEM TECH
Preparation method for macromolecular adsorbent precursor diblock copolymer
The invention relates to a preparation method for a macromolecular adsorbent precursor diblock copolymer. A macromolecular chain transfer agent PMA is compounded according to a RAFT polymerizing method which comprises the following steps: taking methyl acrylate as a first monomer, trithiocarbonate as a chain transfer agent, azodiisobutyronitrile as an initiator and 1,4-dioxane or N,N-dimethyl formamide as a solvent, thereby acquiring yellow viscous liquid polymethyl acrylate with carboxyl at one end and trithio sulfatide at the other end, and then taking N-isopropyl acrylamide as a second monomer for compounding polymethyl acrylate as the macromolecular chain transfer agent, thereby acquiring a diblock copolymer PMA-b-PNIPAM. According to the invention, RAFT polymerization is utilized to compound hydrophilic PMA as the chain transfer agent for the next stage reaction by using trithio ester with higher chain transfer constant as an active / controllable polymerized chain transfer agent. The diblock copolymer PMA-b-PNIPAM at different block ratio is compounded in the manner of changing the design for different degrees of polymerization.
Owner:TIANJIN UNIV
Anti-ultraviolet umbrella fabric
InactiveCN107791645AImprove waterproof performanceGood adhesionWalking sticksSynthetic resin layered productsFiberAcrylic resin
The invention discloses an anti-ultraviolet umbrella fabric, which comprises a cloth layer, a coating layer, a thin film layer and a pressure adhesive layer. The specific formula of each layer of thefabric is as follows: the cloth layer is prepared from the following components by mass percent: 50 to 75% of polymethyl acrylate fiber, 20 to 40% of cuprammonium fiber and 20 to 35% of polyimide fiber; the coating layer is prepared from the following components by mass percent: 40 to 60% of phytic acid, 15 to 25% of defoamer, 10 to 15% of ammonium phosphate and 10 to 15% of zinc yellow; the thinfilm layer is prepared from the following components by mass percent: 40 to 60% of PVDF, 30 to 40% of acrylic resin, and 20 to 35% of chlorinated PVC resin; the pressure adhesive layer is prepared from the following components by mass percent: 45 to 85% of natural rubber, 8 to 16% of anti-ozone anti-aging agent and 20 to 30% of hard pottery clay. The anti-ultraviolet umbrella fabric provided by the invention has the advantages that the waterproof effect can be well improved by providing a four-layer structure, and the thin film layer arranged on the coating layer can prevent a coating from wearing severely after long-term use.
Owner:CHENGDU JIELEI SHADING ENG CO LTD
Plastic defoamer
ActiveCN103059392AImprove self-protection functionAvoid failureLinear low-density polyethylenePhysical chemistry
The invention relates to the field of plastic processing, and in particular relates to a plastic defoamer. The plastic defoamer is prepared from the following components in parts by weight: 40 to 50 parts of calcium oxide, 30 to 40 parts of linear low density polyethylene and butadiene styrene rubber totally, 10 to 20 parts of lubricants, 5 to 10 parts of polymethyl acrylate, 4 to 9 parts of metal soaps and 1 to 3 parts of titanate coupling agents. According to the invention, the plastic defoamer is coated by polymethyl acrylate to insulate contact of the plastic defoamer and air to prevent absorption of moisture, so as to improve the safe applicability of the plastic defoamer; simultaneously, the coupling agent is used for lowering the influence of calcium oxide on plastic properties and an effect of removing residual moisture in the plastic on the basis of not affecting plastic basic properties is achieved.
Owner:ZHEJIANG JIANDE HONGXING CALCIUM
Method for preparing low-temperature-resisting waterproof mortar
The invention relates to a method for preparing low-temperature-resisting waterproof mortar. The method comprises the following steps: heating fatty acid magnesium, adding polyimide grains, quartz sand and kieselguhr, unfiromly stirring, and cooling, thereby obtaining modified powder; adding a cationic surfactant and glycerol, heating and mixing in a mixing machine, and cooling to room temperature, thereby obtaining a cationic prefabricated body; heating and mixing polymethyl acrylate latex powder, an anionic surfactant, epoxy resin, o-hydroxybenzoic acid phenyl ester, inorganic fibers and ethyl acetate, and cooling, thereby obtaining an anionic prefabricated body; mixing the cationic prefabricated body and the anionic prefabricated body, drying and carrying out ball milling, thereby obtaining a mixture; and mixing the mixture with water, coal ash, gypsum and cement, thereby obtaining the waterproof mortar. As the inorganic fiber and the inorganic grains are respectively modified by using anions and cations, the inorganic fiber and the inorganic grains can be easily wrapped by each other, and the cold resistance of the mortar with the inorganic fiber and the inorganic grains is improved.
Owner:利水工程咨询有限公司 +16
Three-dimensional printing paste
The invention relates to three-dimensional printing paste. The three-dimensional printing paste is composed of, by mass, 10-40 parts of polyethylene glycol 200 diacrylate, 100-500 parts of polymethyl acrylate, 10-50 parts of trimethylolpropane, 5-30 parts of polysiloxane, 15-80 parts of N-(isobutoxymethyl)acrylamide, 5-50 parts of vinyl acetate, 4-60 parts of sodium hexametaphosphate, 150-300 parts of sodium alginate, 5-30 parts of sodium carbonate, 5-10 parts of starch, 3-10 parts of chain extenders and 0.2-0.6 part of a catalyst. The chain extenders are one or more of ethidene diamine, 1,4-butanediol and ethanediol. The catalyst is dibutyltin dilaurate or dibutyl tin acetate. After the three-dimensional printing paste prepared through the formula and the technical method is printed on cloth through baking setting during flat screen printing or rotary screen printing, obtained patterns have convex-concave feeling, bright colors and a sharp contrast.
Owner:绍兴百丽恒印染有限公司
PMA-EVAL high-strength cable sealing sheath and preparation method thereof
InactiveCN105419202AImprove mechanical propertiesAccelerated corrosionInsulated cablesInsulated conductorsGlycerolMechanical property
The invention discloses a PMA-EVAL high-strength cable sealing sheath and a preparation method thereof. The preparation method comprises the steps that (1), sodium silicate and a sulfuric acid solution are mixed to form hydrogel; (2) bentonite is soaked in a hydrochloric acid solution for activating treatment, and then filtration is performed to get a filter cake so as to prepare a modifier; (3) PMA (polymethyl acrylate), EVAL (ethylene-vinyl alcohol copolymer), a complex shown in the formula (I), limestone, dibutyl phthalate, hydrazine, sinigrin, diborane, glycerol, triallyl cyanurate, 2-benzothiazolethiol, the hydrogel and the modifier are mixed, cooled and shaped to prepare the PMA-EVAL high-strength cable sealing sheath. The PMA-EVAL high-strength cable sealing sheath prepared through the method has excellent mechanical properties, corrosion resistance and pressure resistance.
Owner:WUHU HANGTIAN SPECIAL CABLE FACTORY
Organic sulfur compound anode material, and aluminum ion battery and anode piece for aluminum ion battery
ActiveCN106159230AImprove cycle performanceGood compatibilityCell electrodesSecondary cellsAluminum IonSulfur
The invention discloses an organic sulfur compound anode material, and an aluminum ion battery and an anode piece for the aluminum ion battery. The compound anode material is prepared according to the method comprising the following steps: dissolving a high-molecular polymer into a carbonic ester solvent, thereby obtaining a polymer solution; mixing organic sulfur powder with the polymer solution; filtering and taking filter residue; washing and drying, thereby obtaining the organic sulfur compound anode material. The mass ratio of high-molecular polymer to organic sulfur powder is (10-50):(5-20); the high-molecular polymer is any one or combination of polypropylene carbonate, polydiethylsiloxane, polymethyl acrylate and polymethyl methacrylate; the high-molecular polymer is covered on the organic sulfur surface, so that the stability of organic sulfur of the core is increased and the product yield of the pole piece processing is increased; the material is taken as the anode material for preparing the aluminum ion battery and the coating layer of the high-molecular polymer is dissolved in the organic electrolyte, so that the characteristic of high specific capacity of the organic sulfur is fully exerted.
Owner:深圳博磊达新能源科技有限公司
Polycaprolactone-based hyperbranched polymer all-solid-state electrolyte and lithium ion battery
ActiveCN111234240ASpecial structureHigh mechanical strengthSolid electrolytesSecondary cellsSolid state electrolytePolymer science
The invention discloses a polycaprolactone-based hyperbranched polymer and a preparation method thereof. The polycaprolactone-based hyperbranched polymer comprises a polycaprolactone matrix and a branched chain segment connected with the polycaprolactone matrix through a covalent bond, wherein the branched chain segment comprises at least one of polystyrene, polyvinyl cyclohexane, polymethyl acrylate and polymethyl methacrylate. The invention also discloses an all-solid-state electrolyte containing the polycaprolactone-based hyperbranched polymer, a preparation method of the all-solid-state electrolyte and a lithium ion battery containing the all-solid-state electrolyte. The polycaprolactone-based hyperbranched polymer disclosed by the invention has relatively good mechanical strength, and, as an electrolyte, has high ionic conductivity, high ionic transference number and a wide electrochemical window; the all-solid-state electrolyte prepared from the polycaprolactone-based hyperbranched polymer can be stably circulated at high temperature; a corresponding lithium ion battery can still achieve stable performance at high temperature, and the use temperature of a lithium ion batteryproduct is increased.
Owner:SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
Graft copolymer of amino-containing starch and methyl acrylate
InactiveCN101717472AHigh removal rateRapid flocculation and sinkingWaste water treatment from metallurgical processWater/sewage treatment by flocculation/precipitationHydrazine compoundPoly(methyl acrylate)
The invention provides a graft copolymer of amino-containing starch and methyl acrylate. The graft copolymer has starch as a main chain and polymethyl acrylate as a branched chain, and is characterized in that part of formyl radicals on the polymethyl acrylate branched chain are aminated by hydrazine hydrate into -CONHNH2; the grafting rate is 20 to 99 percent; and the nitrogen content is 1 to 20 percent. The copolymer can be used as a metal chelating agent to treat electroplating wastewater. When the copolymer is dissolved in the electroplating wastewater, functional groups in molecules are rapidly chelated with metal ions to form insoluble products, and the own network structure of the copolymer can allow precipitate to rapidly flocculate and sink at the same time so as to achieve the aim of removing the metal ions in the wastewater, wherein the removal rate of heavy metal ions is as high as over 99 percent.
Owner:GUANGZHOU UNIVERSITY
Graphite electrode, preparing method thereof and carbon dioxide generator
ActiveCN106917103AIncrease carbon dioxide levelsStable gas productionElectrodesCarbon nanotubeSilicon oxide
The invention relates to a graphite electrode, a preparing method thereof and a carbon dioxide generator. The graphite electrode comprises the following components by weight, which are described in the specification, wherein an adhesive comprises at least one of phenolic resin, bisphenol-A epoxy resin and urea resin; a first additive is selected from at least one of polylactic acid, carbonic ester, monosaccharide, oligosaccharide and polymethyl acrylate; and a second additive is selected from at least one of carbon black, carbon nanotubes, silicon carbide, boron nitride, silicon oxide, aluminum oxide, zinc oxide, iron oxide, titanium dioxide, calcium carbonate, stearic acid, zinc stearate and calcium stearate. The content of carbon dioxide in gas obtained by electrolysis is higher than 10v%, and the gas output is stable. The carbon dioxide generator is particularly suitable for being used as a matched device in mosquito killing equipment and plant growth equipment, is convenient to change, is great in energy saving and consumption reducing effects and is friendly to the environment.
Owner:NINGBO DAYANG TECH CO LTD
Biodegradable plastic cement material and preparation method thereof
The invention provides a biodegradable plastic cement material and a preparation method thereof. The material comprises polylactic acid, polymethyl methacrylate, polypropylene, dicapryl phthalate, butyl benzyl phthalate, castor oil, cocoanut fatty acid diethanolamide, cellulose, modified starch, butylated hydroxytoluene, butyl hydroxy anisd, polymethyl acrylate and silica. The preparation method comprises the steps of firstly, mixing, heating and stirring polylactic acid, polymethyl methacrylate, polypropylene, dicapryl phthalate, butyl benzyl phthalate, castor oil and cocoanut fatty acid diethanolamide, then adding the remaining components, conducting dispersion, then placing the mixture into a dryer for a reaction, and finally adding the mixture into a double-screw extruder for extrusion molding. The biodegradable plastic cement material can be degraded completely, is high in degradation speed and meanwhile has quite good elasticity and toughness.
Owner:SUZHOU FAST INFORMATION TECH CO LTD
Acid-base-corrosive-resisting polyformaldehyde composite material and preparation method thereof
The invention discloses an acid-base-corrosive-resisting polyformaldehyde composite material and a preparation method thereof. The acid-base-corrosive-resisting polyformaldehyde composite material s prepared from, by weight, 20-30 parts of polyformaldehyde, 30-40 parts of triethanolamine, 35-45 parts of polymethyl acrylate, 20-30 parts of polyvinyl pyridine, 45-55 parts of ethyl methacrylate, 25-35 parts of zinc silicate, 15-25 parts of kaolin, 10-20 parts of zinc stearate, 5-15 parts of calcium molybdate, 25-35 parts of aluminum powder, 35-45 parts of sulphur, 14-18 parts of sodium hexametaphosphate and ethylenediaminetetraacetic acid disodium salt, and the part ratio, by weight, of the sodium hexametaphosphate to the ethylenediaminetetraacetic acid disodium salt is (6-8):1. The polyformaldehyde composite material has original advantages of polyformaldehyde and also has the excellent acid-base-corrosive-resisting performance. The technical effects are related to the part ratio, by weight, of the sodium hexametaphosphate to the ethylenediaminetetraacetic acid disodium salt, and when the part ratio, by weight, of the sodium hexametaphosphate to the ethylenediaminetetraacetic acid disodium salt is (6-8):1, the acid-base-corrosive-resisting performance of the polyformaldehyde composite material is optimal.
Owner:佛山科悉家居有限公司
Slurry stabilizing agent and applications thereof
InactiveCN102517106AChange rheological propertiesLow ion contentCalcium/strontium/barium carbonatesLiquid carbonaceous fuelsPolymer scienceSlurry
The invention discloses a slurry stabilizing agent and applications thereof. A polyacrylamide maleic acid polymethyl acrylate grafted copolymer is adopted; the molecular weight of polyacrylamide is 50,000-2,000,000; the grafting rate of polymethyl acrylate is 1-15 percent; the grafting rate of maleic acid is 2-30 percent; and the grafting rates refer to the weight ratio of polymethyl acrylate to polyacrylamide and the weight ratio of maleic acid to polyacrylamide. The rheologic property of slurry is improved by utilizing the polyacrylamide in molecular structure; metal ions are chelated by utilizing the grafted maleic acid in molecular structure; and inorganic minerals are dispersed by utilizing the polymethyl acrylate, wherein the addition is 10-150ppm only. The slurry stabilizing agent disclosed by the invention is capable of obviously improving the rheologic property of the slurry and enhancing the stability of the slurry, has a stabilizing effect on various slurries, enables the slurries to show proper viscosities at different shearing rates, is convenient to operate, low in use level and lower in cost and has a higher popularization and application value.
Owner:NANJING UNIV
Coal water slurry dispersing stabilizer
InactiveCN104651002AReduce surface tensionFully moistLiquid carbonaceous fuelsCoal waterPoly(methyl acrylate)
The invention relates to a coal water slurry dispersing stabilizer, and belongs to the technical field of coal water slurry processing. The coal water slurry dispersing stabilizer is composed of the following raw materials by weight: 10 parts of sodium lignosulfonate, 3.2-3.5 parts of modified starch, 1.7-2.0 parts of hydroxymethyl cellulose, 2.3-2.7 parts of poly methyl acrylate, 1.8-2.3 parts of polyepoxysuccinic acid and 1.2-1.5 parts of methyl benzotriazole. According to the invention, the existing surface active agents are selected and combined according to a certain ratio, so that the surface active agents with different functions mutually coordinate to realize excellent dispersion effect. Specifically, the dispersing stabilizer can reduce the surface tension of water, increase the surface tension of coal, reduce the interfacial tension between the two liquid, so that the coal water slurry can be fully wet. The hydration film can separate the coal particles and reduce the resistance of the coal particles, so as to reduce the viscosity effect.
Owner:张晨
A plastic defoamer
ActiveCN103059392BImprove self-protection functionAvoid failureLinear low-density polyethylenePolymer science
Owner:ZHEJIANG JIANDE HONGXING CALCIUM
Pervious concrete, and preparation method and application thereof
Owner:THE GUANGDONG NO 3 WATER CONSERVANCY & HYDRO ELECTRIC ENG BOARD CO LTD
Cataplasm and method for producing same
ActiveCN105473132AFull adhesionAbsorbent padsMacromolecular non-active ingredientsPolymer scienceEthyl group
The invention provides a cataplasm which comprises a plaster layer on a supporting body. The plaster layer is obtained by mixing at least a neutralized polyacrylic acid, a poly(methyl acrylate / 2-ethylhexyl acrylate) emulsion in an amount of 2.5 times or more, preferably 3 times or more the amount of the neutralized polyacrylic acid on a mass basis, and water. The poly(methyl acrylate / 2-ethylhexyl acrylate) emulsion has an evaporation residue of 57-61% when heated at a temperature not lower than the boiling point of the medium.
Owner:HISAMITSU PHARM CO INC
Water-resistant dispersion concrete and preparation method thereof
ActiveCN114105547AReduce adsorptionHydrophobicSolid waste managementPolyvinyl alcoholPolyethylene glycol
The invention belongs to the technical field of building materials, and particularly relates to water-dispersion-resistant concrete and a preparation method thereof, and the water-dispersion-resistant concrete comprises the following components by weight: 300-600 parts of cement; 60 to 200 parts of fly ash; 600 to 800 parts of recycled fine aggregate; 800 to 1100 parts of recycled coarse aggregate; 100 to 200 parts of regenerated micro powder; 5-15 parts of a water reducing agent; 100 to 200 parts of metakaolin; 160 to 240 parts of a modified nano silicon oxide dispersion liquid; 3 to 10 parts of organosilane; 1-5 parts of polyvinyl alcohol; 5 to 15 parts of polymethyl acrylate; 3 to 5 parts of triethanolamine; 1 to 3 parts of polyacrylamide; 1-5 parts of polyethylene glycol and 0-6 parts of synthetic fiber. The water-resistant dispersion concrete provided by the invention realizes direct pouring of concrete in water, no segregation when encountering water, no loss of cement, self-leveling and self-compacting when entering water, no need of vibration, no environmental pollution to construction water areas, uniform and reliable concrete quality, and significant positive influence on durability, workability and cost control of underwater concrete.
Owner:CHINA ROAD & BRIDGE
High-transmittance anti-scratch PET protective film and preparation method thereof
ActiveCN110733224AHigh hardnessImprove impact resistanceSynthetic resin layered productsLaminationElastomerWeather resistance
The invention discloses a PET protective film. The protective film comprises a PET main body layer and a protective layer, wherein the PET main body layer is prepared from PET resin, and the protective layer is prepared from the following preparation raw materials in parts by mass: 50 to 70 parts of polymethyl acrylate, 10 to 20 parts of organic glass, 10 to 20 parts of thermoplastic elastomer, 0.1 to 2 parts of topaz micropowder and 0.1 to 4 parts of silicon dioxide micropowder. The prepared protective film is good in hardness, high in scratch resistance and good in toughness and is not proneto embrittlement in the using process, and the light transmittance and weather resistance of a PET base layer film are not affected while the above properties are improved.
Owner:深圳市象形科技有限公司
Polor monomer homopolymerization and copolymerization titanium-substituted beta-dione-cobalt acetylacetonate composite catalyst and its preparing method
Owner:SUN YAT SEN UNIV
Magnetic ferric oxide composite medical contrast agent
InactiveCN104436224AGood biocompatibilityReduce volumeEchographic/ultrasound-imaging preparationsGranular deliveryIron saltsCarboxyl radical
The present invention discloses a magnetic ferric oxide composite medical contrast agent. According to the present invention, the microsphere has a hollow inorganic / organic / inorganic three-layer structure, the cavity is positioned in the center of the microsphere, the internal is filled with air, the outer layer of the cavity is alpha-Fe2O3 magnetic particles, the middle layer is core / shell polymer nanometer microspheres obtained by carrying out free radical copolymerization on a poly(methyl acrylate)-polyacrylic acid random copolymer, polyacrylic acid and divinylbenzene, the carboxyl on the inner surface and the iron salt can form the coordination bond or ion bond so as to provide the stability between the copolymer and the alpha-Fe2O3 magnetic particles in the inner layer, the outer layer is silicon dioxide, and the carboxyl on the microsphere surface and the silanol on the silicon dioxide surface produce the hydrogen bond effect so as to realize connection; and the magnetic ferric oxide composite medical contrast agent has the following advantages that: the polymer microspheres belong to the nanoscale particles, the contrast agent can provide the targeting positioning function with the alpha-Fe2O3 magnetic particles in the inner layer, the silicon dioxide hollow microsphere has good biocompatibility and good mechanical stability, and the internal cavity can produce the strong echo signal under the contrasting mode.
Owner:CHENGDU LVKE HUATONG TECH
Flame-retardant anticorrosive coating material for outdoor power equipment, and preparation method thereof
InactiveCN110819201AImprove lipophilicityImprove mechanical propertiesFireproof paintsAntifouling/underwater paintsEpoxyPolyamide
The invention discloses a flame-retardant anticorrosive coating material for outdoor power equipment, and a preparation method thereof, wherein the flame-retardant anticorrosive coating material is prepared from the following raw materials by weight: 20-30 parts of a phosphorus-containing phenol formaldehyde resin, 1-5 parts of a fluorine-silicon polymer three-proofing aid, 15-25 parts of an epoxyresin, 8-12 parts of a polyamide resin, 5-8 parts of polymethyl acrylate, 6-9 parts of nanometer silicon dioxide, 1-4 parts of nanometer titanium dioxide, 8-12 parts of nanometer zinc oxide, 2-6 parts of a silane coupling agent and 15-25 parts of a solvent. According to the invention, the flame-retardant anticorrosive coating material has advantages of good flame retardancy, good water resistance, good oil resistance, good antifouling property, good weather resistance, good aging resistance, good corrosion resistance, good rust resistance, high bonding strength with equipment, simple preparation method and good application prospects.
Owner:广西凯威铁塔有限公司
Preparation method of antioxidant copper-clad iron composite powder
InactiveCN108311692AImprove oxidation resistanceAvoid damageTransportation and packagingMetal-working apparatusCopper platingStrong acids
Owner:FOSHAN JIUBAI TECH INFORMATION CONSULTATION CO LTD
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