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33results about How to "Improve key strength" patented technology

Water-insoluble modified polyvinyl alcohol coating liquor and its preparation process

The invention discloses an insoluble modified polyvinyl alcohol coating liquid and preparing method and film through the coating liquid, which comprises the following parts: polyvinyl alcohol, modifier, inorganics, crosslinking agent, catalyst and water. The coating liquid improves levelling, adhering and even property greatly, which increases obstruct property for kinds of gas.
Owner:刘建林

Artificial tooth base resin-nano zirconium oxide composite material and preparation thereof

The present invention provides false tooth base resin applied to the oral cavity repair, which is nanometer zirconia composite material. Firstly, silane coupling agent Z-6030 is used to decorate the surface of the nanometer zirconia. The raw material components are 0.5 percent to 5.0 percent of silane coupling agent Z-6030 and 95 percent to 99.5 percent of the nanometer zirconia. The nanometer zirconia decorated by the coupling agent is obtained. Then the nanometer zirconia decorated by the coupling agent is synthesized with polymethyl methacrylate. The material components are 1 percent to 5 percent of the nanometer zirconia decorated by the coupling agent and 95 percent to 99 percent of the polymethyl methacrylate. The nanometer zirconia composite material is obtained, the flexural strength of which can be 95.61MPa. The nanometer zirconia composite material manufactured by the present invention has high flexural strength, easy polishing, good finish degree, pink color, easy adjustment and good biological compatibility and is the novel resin with good biological and mechanical performance, which can be widely applied to the dentistry.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +1

Solvent-resistant corrosion-resistant rubber and preparation method thereof

The invention discloses a solvent-resistant and corrosion-resistant rubber and a preparation method thereof. The solvent-resistant and corrosion-resistant rubber consists of the following parts by mass: 30-50 parts of natural rubber, 20-30 parts of nitrile rubber, and 20-30 parts of fluorosilicone rubber 30 parts, 3-7 parts of active zinc oxide, 3-9 parts of PE wax, 4-10 parts of n-butyl methacrylate, 3-8 parts of epoxy resin, 0.3-1.2 parts of anti-aging agent, 1-part of resorcinol 3 parts, polytetrafluoroethylene 6‑10 parts, coumarone resin 2‑5 parts, stearic acid 3‑6 parts, white carbon black 8‑15 parts, sulfur 10‑15 parts, accelerator AM‑2 3‑ 5 parts, 0.1-0.3 parts of anti-scorch agent CTP, the present invention is prepared by two-stage mixing method. The solvent-resistant and corrosion-resistant rubber of the invention has good resistance to organic solvents, strong acid and alkali resistance, corrosion resistance, excellent wear resistance and high temperature resistance, simple preparation, low cost and certain promotion value.
Owner:安徽省含山县锦华氧化锌厂

High-temperature-resistant light-cured resin and preparation method thereof

InactiveCN110724236APlay a synergistic roleLight curing reaction speed is fastAdditive manufacturing apparatusEpoxyPolymer science
The invention provides high-temperature-resistant light-cured resin and a preparation method thereof. The light-cured resin comprises the following components in percentage by mass: 40%-70% of epoxy resin, 5%-20% of acrylic resin, 10%-20% of an active diluent, 3%-6% of a cationic photoinitiator, 1%-3% of a free-radical photoinitiator, 5%-20% of a flexibilizer and 0.1%-3% of an inorganic filler. The high-temperature-resistant light-cured resin is high in curing reaction rate and has both toughness and strength.
Owner:威斯坦(厦门)实业有限公司

Modified PVA paint and its prepn process

The present invention discloses one kind of modified PVA paint, which consists of PVA, regulator, inorganic matter, tackifier and water. The tackifier is polyethylene imine and / or polyoxyethylene; the inorganic matter is clay and / or nanometer titania or the mixture of clay, nanometer silica and nanometer titania. The preparation process includes mixing PVA, regulator, inorganic matter, and water through stirring, heating to and maintaining at 90-95 deg.c to dissolve PVA completely, cooling to normal temperature, and adding tackifier through stirring. The product of the present invention has excellent machinability, and the formed coating has high water resistance, excellent ultraviolet ray and infrared ray reflecting property, high wear resistance and other excellent performance.
Owner:刘建林

Fiber-enhanced aerogel-metal composite material and preparation method thereof

InactiveCN107099692AEasy BondingOptimize the micro-arrangement structureTemperature resistanceMetal matrix composite
The invention relates to a fiber-enhanced aerogel-metal composite material and a preparation method thereof. Fiber-enhanced aerogel is taken as a reinforcement material, and metal is taken as a substrate and fills a three-dimensional nanometer hole structure of aerogel to form a composite material having a structure of interlacing metal with a nanometer three-dimensional network of aerogel. The metal-based composite material has improved high temperature resistance, wear resistance, compression resistance, impact resistance, fracture resistance and corrosion resistance. The method is simple and easy in technical process and beneficial for industrial massive production, and can promote upgrading of conventional metal-based composite material industry. The fiber-enhanced aerogel-metal composite material has high application value in the fields of national defense and military, space and aeronautics, high-speed trains, ships and vessels, and automobiles.
Owner:浙江圣润纳米科技有限公司

Adaptation method in use for syncretizing Internet and synchronous digital hierarchy (SHD) or synchronous optical network

InactiveCN1728716AFast protection switchingFast Protection Switching FunctionTransmissionNetwork ConvergenceData link layer
New layer of data link layer protocol - data link procedure (DLP) is introduced between IP of network layer and SDH / SONET in physical layer in the invention to realize syncretizing adaptation between Internet and SDH / SONET in order to overcome shortage of current adaptation technique. The method possesses features are: high efficiency of forwarding IP packets, safety and reliability, flux engineering capability, 50 ms protected rearrangement function, realizing exchange between SDH / SONET circuit of virtual container and optical wavelength directly, and realizing compatibility between 1Pv4 and IPv6 networks and compatibility to packet voice network. Using safety mechanism, network control management mechanism, flow management mechanism provided by DLP realizes safety management, control management and flow management for IP network. The method makes current IP network transits to united public network in next generation smoothly.
Owner:邓里文

Preparation of nano SiO2 enhanced toughened PET composite material for plastic-steel baling belt

The invention discloses a nanometer SiO2 strengthening-toughening PET compound material for plastic-steel packing straps. A melt-blending method is adopted to prepare a master batch of the nanometer SiO2 strengthening PET compound material; the weight percentage content of gas-phase SiO2 is between 25 and 40 percent; a melting system always maintains high-speed shearing dispersion and carries out mixing in a 20KHz ultrasonic environment; a coupling agent KH550 or A1120 is added to the melting system, and the dosage of the coupling agent is 2.5-4 percent of that of the SiO2; the master batch is blended with PET and fed in certain proportion, and then the nanometer SiO2 strengthening-toughening PET compound material can be obtained, wherein the content of nanometer SiO2 is between 1 to 3.5 percent. Due to the adoption of the compound material, nanometer SiO2 particles in PET are uniform in dispersion, good in crystallization property, obvious in strengthening effect, good in the compatibility with the PET, simple to operate and low in cost. The PET master batch is blended with the PET for producing the plastic-steel packing straps, which can raise the strength, toughness, etc. of the PET.
Owner:SOUTHEAST UNIV

3PE anticorrosive paint epoxy bottom layer for outer wall of deep sea oil and gas transmission steel pipe and preparation method of 3PE anticorrosive paint epoxy bottom layer

The invention provides a 3PE anticorrosive paint epoxy bottom layer for an outer wall of a deep sea oil and gas transmission steel pipe and a preparation method of the epoxy bottom layer. The epoxy bottom layer comprises the following raw materials in percentage by mass: 60%-75% of epoxy resin, 5%-10% of a silane coupling agent, 0.5%-1.5% of graphene oxide, 2%-5% of gaseous phase SiO2 and 15%-30% of a curing agent. The preparation method comprises the following steps: mixing the raw materials evenly; carrying out ultrasonic treatment; putting into a stirrer and stirring evenly; and heating and solidifying, so as to obtain the epoxy bottom layer. The epoxy bottom layer has excellent mechanical property and wide application; and particularly, the anti-tensile shearing strength and the impact strength are improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Nano sulfate reducing bacteria corrosion preventive coating for gathering and transferring pipeline and manufacturing method thereof

Nano sulfate reducing bacteria corrosion resistant paint for a gathering pipeline is applied to the anticorrosion paint for the oil and gas collecting pipeline. The paint comprising an agent A and an agent B is characterized in that: the agent A consists of bisphenol A epoxy resin, normal butyl alcohol, xylene, diacetone alcohol, polyether modified dimethyl polysiloxane, a macromolecular block copolymer containing a pigment compatible group, foam breaking polysiloxane, polyether siloxane copolymer, polyacrylate, macromolecular polyocarboxy acid containing amino derivatives, metronidazole, nano titanium dioxide, nano silicon dioxide, chrome oxide green, talcum powder and scale graphite; and the agent B consists of a polyamide addition compound, normal butyl alcohol and diacetone alcohol. The paint has the advantages of: an isolated layer is coated between a metal surface and sulfate reducing bacteria inside the pipeline, thereby not only improving the corrosion and abrasion resistant performance of the pipeline, but also preventing the sulfate reducing bacteria from adhering to the metal surface and consequently solving the problem of corrosion caused by the sulfate reducing bacteria.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Water insoluble modified polyvinyl alcohol coating liquid and its producing process

The water insoluble modified polyvinyl alcohol coating liquid consists of polyvinyl alcohol, regulator, inorganic matter, crosslinking agent, catalyst and water. The water insoluble modified polyvinyl alcohol coating liquid includes two components, the component A is prepared through mixing all the material except catalyst and heating at certain temperature, and the component B is catalyst. When used, the two components, A and B, are mixed through stirring, and the mixture forms water insoluble film. The foamed film has excellent processibility, high reflectivity to ultraviolet light and infrared light, high wear resistance, low transmissibility and high adhesion to substrate, and is used in product package.
Owner:刘建林

Bend tube detection device and application thereof

The invention discloses a bend tube detection device and an application thereof. The bend tube detection device is formed by bending a red copper tube, or a steel tube, or a stainless steel tube. The bend tube detection device comprises an extension end, a tail end and a plurality of sequentially-connected arcs. The diameter of each arc is 60-160 mm, and the central angle of each arc is 30-280 degrees; and the surfaces of the extension end, the tail end and the arcs are respectively provided with a 0.2-0.5 mm antifriction layer. Serving as a casting mould and a detection comparison tool, the bend tube detection device, in the same plane, can bend a plurality of different radiuses of arcs and mould metal pipes, and can ensure uniformity of bend tube pipe moulding and improve processing efficiency; and serving as the detection comparison tool, the bend tube detection device can detect the pipes quickly, and improves pipe molding processing and detection efficiency by more than 50 %; by adding the antifriction layer, bonding force between molecules can be improved, and the antifriction layer can be attached to the surface of each metal pipe, and has good resistance to high temperature, chemical corrosion and friction, thereby improving service life of the bend tube detection device.
Owner:CHONGQING TIEMA IND GRP

Chemical corrosion resistant coating for chemical pump

The invention discloses a chemical corrosion resistant coating for a chemical pump. The chemical corrosion resistant coating is prepared from the following components: 1,3-butanediol, glycerin alkyd resin, hydroxyethyl cellulose, polydimethylsiloxane, methyl acrylate, methylbenzotriazole, beta-methallyl alcohol, zinc oxide powder, modified attapulgite, ammonium polyphosphate, nano calcium carbonate and aids. According to the aids and modified attapulgite prepared by lots of experiment researches, the stability and corrosion resistance of the coating disclosed by the invention can be greatly influenced, and due to reasonable selection of the aids and the usage amount of the modified attapulgite, the performance of the coating disclosed by the invention, particularly chemical corrosion resistance, is greatly influenced.
Owner:ANHUI TENGLONG PUMP VALVE MFG CO LTD

Method for preparing mixed plastic-wood flooring material

The invention discloses a method for preparing a mixed plastic-wood flooring material, and the method comprises the following steps: sending polyethylene particles, a lubricant, an antioxidant, an anti UV absorber, a light stabilizer, a heat stabilizer and a preservative into a mixer for stirring to obtain an A material; adding expanded graphite into sodium chloride, adjusting temperature, grinding, adding water, heating, stirring, filtering, washing, drying, adding concentrated sulfuric acid, stirring at room temperature, heating, stirring, alkalifying, adding amino-terminated branched polyethylene glycol, ultrasonically dispersing, filtering, drying, adding the A material, phenolic epoxy resin, glass fiber, silicon carbide fiber and nano silica for evenly mixing to obtain a B material; and adding wood flour and diaminodiphenylmethane for evenly mixing, sending into a granulator for granulation, drying, sending to an extruder for extrusion molding, cooling under vacuum and sanding to obtain the mixed plastic-wood flooring material.
Owner:湖州中林国际贸易有限公司

Method for preparing degradable plastic film

The invention relates to a method for preparing a degradable plastic film and belongs to the technical field of degradable materials. According to the method, cotton straw and orange peel which are very low in cost is used, meanwhile, the cellulose of the cotton straw has good degradability and biocompatibility and good mechanical properties as well, and the defect that a degradable plastic film is generally poor in mechanical property can be made up; the orange peel is rich in pectin, so that the adhesion degree of the materials can be increased, and meanwhile the mechanical strength can be improved; in addition, the pectin has stability for both heat and acids, and the defect that a common degradable material is poor in thermal resistance can be made up; the degradable plastic film provided by the invention is good in water resistance and acid resistance, has good mechanical properties when being compared with common degradable plastic films, in addition is simple in production process, degradable in production raw material and low in cost, and can be widely applied to the field of degradable plastic film preparation.
Owner:FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD

Abrasion repair method for speed reducer end covers

The invention discloses an abrasion repair method for speed reducer end covers. The abrasion repair method is used for repairing the abraded speed reducer end covers, the production cost is reduced, machining is convenient, a special organic material is generated after a mixed material is cured and heated and bonded with epoxy ring molecules, an excellent metal binding agent is formed, the intermolecular bonding force is improved, overall performance of the surface of a material mixture is improved accordingly, the adhesive force of the speed reducer end covers and the mixed material is enhanced, and reliability is improved. In addition, by means of a machining process, the maintenance time can be shortened, maintenance can be conducted at a working site, and the speed reducer end covers can be quickly installed and put into use.
Owner:WORLD TRANSMISSION TECH TIANJIN SHARE LTD

Resin grinding disc

The invention discloses a resin grinding disc which comprises a base body layer and an abrasive material layer. The base body layer and the abrasive material layer are bonded through a binder. Raw materials of the abrasive material layer comprise, by weight part, 25-35 parts of diamond, 10-15 parts of CBN, 15-35 parts of aluminum oxide hollow ball, 9-28 parts of modified phenolic resin, 5-7 partsof graphite, 2-4 parts of polytetrafluoroethylene powder, 0.5-3 parts of walnut shell flour, 1-3 parts of stearic acid and 0.5-1.5 parts of dibutyl phthalate. The resin grinding disc is good in self-sharpening performance and heat resisting property, the grinding efficiency is high, the falling probability of abrasive particles can be reduced, and the abrasive material can obtain good surface quality.
Owner:安徽全兆光学科技有限公司

High-performance glass fiber reinforced plastic composite material

The invention discloses a high-performance glass fiber reinforced plastic composite material which comprises the following raw materials in parts by weight: 30 to 40 parts of phenolic epoxy resin, 15 to 20 parts of polyetherimide, 5 to 10 parts of diaminodiphenylmethane, 1 to 2 parts of silane coupling agent, 20 to 30 parts of fiberglass, 5 to 10 parts of silicon carbide fibers, 20 to 35 parts of kaolin, 8 to 13 parts of nano silica, 5 to 6 parts of nano zinc oxide powder, 5 to 12 parts of diisononyl phthalate, 0.5 to 1.5 parts of phosphite ester, 0.5 to 1 part of lubricant and 0.8 to 1.3 parts of antioxidant 168. The high-performance glass fiber reinforced plastic composite material is excellent in heat resistance, good in water resistance, corrosion resistance, oxidation resistance and abrasion resistance and long in service life.
Owner:埃克赛复合材料(南京)有限公司

High-temperature resistant antistatic artificial synthetic stone and manufacturing process thereof

The invention discloses a composite composition of antistatic artificial synthetic stone. The materials of the glue solution include polybismaleimide, bisphenol A novolac epoxy resin, bisphenol A epoxy resin, nanoscale silicon dioxide, high-strength hollow glass beads and conductive carbon ink; the solvent is dimethyl formamide and / or acetone / butanone; the reinforcing material is antistatic graphite glass fiber cloth and / or graphite glass fiber felt, wherein any one or two are used. The antistatic artificial synthetic stone disclosed by the invention solves the problems in high-temperature resistance of antistatic synthetic stone, high density of antistatic synthetic stone, uniform static conduction action of antistatic synthetic stone, thermal deformation of antistatic synthetic stone and influence on the health of users and operators caused by a little toxic smoke generated in the using process of the antistatic synthetic stone since the high-temperature resistance does not meet the requirements; moreover, the product density is reduced, and the problem of serious abrasion of the post-processing tool of the user is solved.
Owner:ANHUI RUIFA COMPOSITES MFG

Multifunctional antibacterial artificial stone bathroom and preparation method thereof

PendingCN113800817AGood dispersionWith antibacterial, antibacterial and bactericidal functionsBiotechnologyMicrobiology
The invention discloses a multifunctional antibacterial artificial stone bathroom and a preparation method thereof, and belongs to the field of decorative materials. The multifunctional antibacterial artificial stone bathroom is prepared from the following components in parts by mass: 25-50 parts of a resin, 40-72 parts of a micro powder filler, 0.5-3.5 parts of an accelerant, 0.1-1.5 parts of a coupling agent, 0.08-2 parts of a curing agent, 0.06-0.8 part of an antibacterial agent, 0.05-2 parts of fumed silica and 0.05-2 parts of color paste. According to the multifunctional antibacterial artificial stone bathroom, an antibacterial agent is added into an existing artificial stone bathroom, so that the bathroom product has antibacterial, bacteriostatic and bactericidal functions, the problems of bacterium breeding and mildew can be effectively inhibited, the multifunctional antibacterial artificial stone bathroom has the function of removing formaldehyde, the condition of water molecule agglomeration is improved, macromolecular group water is converted into micromolecular group water, and a healthier and safer environment is created. The preparation method of the multifunctional antibacterial artificial stone bathroom is simple in process and convenient for industrial mass production.
Owner:广州戈兰迪新材料股份有限公司

Recyclable polyethylene single-material high-barrier film bag and processing technology thereof

The invention relates to the technical field of plastic flexible packaging, in particular to a recyclable polyethylene single-material high-barrier film bag and a processing technology thereof, the high-barrier bag is easy to process, low in rejection rate, low in non-polyethylene content and good in barrier property and fragrance retention, and equipment used in the processing technology of the high-barrier bag is simple and low in cost. The high-barrier film bag is low in film manufacturing cost, easy to process and high in yield, the high-barrier film bag comprises a printing layer PE film and a heat-sealing layer PE film, the surface of the heat-sealing layer PE film is coated with improved PVA coating liquid, the PVA coating liquid is located on the surfaces of the heat-sealing layer PE film and the printing layer PE film, the printing layer PE film and the heat-sealing layer PE film are compounded through dry compound glue and then cut to manufacture the bag, and the high-barrier film bag is formed. The processing technology of the recyclable polyethylene single-material high-barrier film bag comprises the following steps: S1, preparing a film; s2, PVA (Polyvinyl Alcohol) coating; s3, printing the film cloth; s4, compounding; and S5, bag making.
Owner:河北上东包装科技有限公司

Heat-resistant insulating adhesive for transformers

The invention relates to the technical field of transformers, and particularly discloses a heat-resistant insulating adhesive for transformers, wherein the raw materials comprise, by weight, 50-75 parts of a modified phenol formaldehyde resin, 5-9 parts of a curing agent, 4-11 parts of a diluent, 1-5 parts of a coupling agent, 1-3 parts of a plasticizer, and 1-4 parts of flame retardant. The heat-resistant insulating adhesive of the present invention has excellent heat resistance and excellent aging resistance.
Owner:岳西县明杰电子有限公司

Nano SiO2-organosilicon coating and preparation method thereof

The invention relates a nanometer SiO2- organosilicon coating and preparation method. The coating comprises the 60-82% organosilicon resin, 3-10% nanometer SiO2, 5-15% dimethylbenzene, 3-8% toluene, 3-6% butyl acetate, 0.2-0.6% dispersing agent, 0.1-0.3% levelling agent, 0.2-0.4% defoaming agent, and 3-10% talcum powder. The method comprises the following steps: 1 weighing nanometer SiO2, adding dimethylbenzene, dispersing agent and butyl acetate, disperse with ultrasonic, and getting nanometer SiO2 slurry; 2 weighing organosilicon resin, adding defoaming agent and dispersing agent, then adding nanometer SiO2 sluury and talcum powder, dispersing and grinding; 3 adding left resin, solvent and adjuvant, and dispersing. The invention can improve the erosion-resisting characteristics, protect material, and extend the life.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

PVB (Polyvinyl Butyral) double-glass photovoltaic module structure and press-fitting process

The invention discloses a PVB (polyvinyl butyral) double-glass photovoltaic module structure and a press fitting process, and belongs to the technical field of double-glass photovoltaic module production, the PVB double-glass photovoltaic module structure comprises a crystal silicon wafer, the top of the crystal silicon wafer is sequentially provided with an upper layer PVB film and an upper layer glass substrate from bottom to top, and the bottom of the crystal silicon wafer is sequentially provided with a lower layer PVB film and a lower layer glass substrate from top to bottom. According to the invention, due to the super-large specific surface area, Ce02 has a large contact area in the upper PVB film and the lower PVB film, when the upper PVB film and the lower PVB film are subjected to external force, more microcracks exist and more force is consumed compared with a common filler, further expansion of the cracks can be prevented and passivated, and the purpose of toughening is achieved; formaldehyde plays a role in connecting phenol and amine in the Mannich reaction, and can be easily removed after the reaction is completed, so that the toughness of the upper PVB film and the lower PVB film can be greatly improved in order to increase the reaction activity and promote the reaction to proceed forwards, and excellent use performance is obtained.
Owner:奎达高分子材料科技(宜兴)有限公司

Photosensitive resin composition and preparation method thereof

The invention discloses a photosensitive resin composition and a preparation method thereof. The photosensitive resin composition is composed of the following raw materials: epoxy resin, nano silicon dioxide, modified resin, dendritic polyol, dendritic acrylate polymer , free radical photoinitiator, cationic photoinitiator, the photosensitive resin composition provided by the invention has high tensile strength and elongation, strong wear resistance, good strength and toughness, excellent thermal stability, heat resistance And the advantages of reaction speed, lower viscosity and higher reactivity, etc., make the photosensitive resin composition have faster reaction speed, higher initial strength, and can improve the printing speed of the photosensitive resin.
Owner:SUZHOU POLLY NEW MATERIAL TECH CO LTD

Special compound biological fertilizer for promoting growth of peppers and preparation method of special compound biological fertilizer

The invention discloses a special composite biological fertilizer for promoting growth of pepper, which is prepared from the following raw materials: fermented and decomposed manure organic raw material, urea, calcium magnesium phosphate fertilizer, potassium sulfate, attapulgite, humic acid, polyvinyl alcohol, isocyanate, initiator, gamma-polyglutamic acid, glutaraldehyde, nano silicon dioxide and complex microbial inoculant. The mass ratio of the fermented and decomposed manure organic raw material to the urea to the calcium magnesium phosphate fertilizer to the potassium sulfate to the attapulgite to the humic acid to the polyvinyl alcohol to the isocyanate to the initiator to the gamma-polyglutamic acid to the glutaraldehyde to the nano silicon dioxide to the complex microbial inoculant is (35 to 40) to (15 to 20) to (10 to 13) to (15 to 18) to (6 to 10) to (5 to 8) to (2 to 4) to (0.5 to 0.8) to (0.05 to 0.5) to (0.5 to 1) to (0.1 to 0.5) to (0.6 to 1.2) to (0.5 to 1). The invention discloses a preparation method of the special compound biological fertilizer for promoting the growth of the peppers.
Owner:安徽省农业科学院棉花研究所 +1
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