| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 264290100 | CARBONIZING TO FORM ARTICLE | 66 |
| 20080251959 | Method of manufacturing a carbon-carbon brake disc - A method of manufacturing a carbon-carbon brake disc uses a restraint fixture ( | 10-16-2008 |
| 20090236763 | Resin transfer molding to toughen composite beam keys - Method of manufacturing composite wheel beam key by: forming entirely from carbon fiber precursors or from carbon fiber precursors and ceramic materials a fibrous preform blank in a shape of a desired wheel beam key, wherein the fiber volume fraction of the preform blank is at least 50%; carbonizing the carbon fiber precursors; rigidifying the carbonized preform blank by subjecting it to at least one cycle of CVD; grinding the surface of the preform blank to open pores on its surface; and subjecting the open-pored preform blank to RTM processing with pitch. Also, carbon-carbon composite or carbon-ceramic composite wheel beam key produced by this process, having a density of from 1.5 g/cc to 2.1 g/cc and a maximum internal porosity of 10% or less. | 09-24-2009 |
| 20100187708 | Disposal Method for Entirely Recycling Solid Refuse - A disposal method for entirely recycling solid refuse includes the following steps: sorting, crushing, drying, pressing with high pressure to shaped articles, producing charcoal from combustible refuse in high temperature and firing incombustible refuse in high temperature, at last cooling high temperature articles to obtain solid fuel with various shapes and bricks or board used for building. The method achieves entirely recycling house refuse, especial solid refuse. The method recycles solid refuse to obtain fuel and building material with economic value. The method is simple and its processing cost is low. | 07-29-2010 |
| 20100314790 | Highly Oriented Graphite Product - A graphite article having enhanced directional thermal conductivity is provided. The mesophase portions of a mesophase pitch are aligned with each other to create an oriented mesophase pitch which may be stabilized. The article may subject to further carbonization and graphitization as needed. | 12-16-2010 |
| 20110101554 | Compression Processes for Graphene Sheets - Processes for preparing or handling graphene sheets wherein low bulk density graphene sheets are compressed. The graphene sheets may be produced by a thermal treatment such as exfoliation of precursor or reduction or annealing of previously existing graphene sheets and conveyed in a closed system to a compression apparatus. | 05-05-2011 |
| 20110140296 | ROBUST CARBON MONOLITH HAVING HIERARCHICAL POROSITY - A carbon monolith includes a robust carbon monolith characterized by a skeleton size of at least 100 nm, and a hierarchical pore structure having macropores and mesopores | 06-16-2011 |
| 20110169180 | METHOD FOR MANUFACTURING CARBONACEOUS FILM, AND GRAPHITE FILM OBTAINED THEREBY - In a method for producing a carbonaceous film in which a polymer film is wrapped around a core and is subjected to a heat treatment, material film surfaces during the carbonization step are prevented from fusion, whereby a long carbonaceous having a large area film is obtained. | 07-14-2011 |
| 20110180946 | TITANIUM CARBIDE AS A FRICTION AND WEAR MODIFIER IN FRICTION MATERIALS - Methods of making a carbon-carbon composite preforms, particularly suitable as brake discs in aircraft landing systems, by combining titanium carbide particles ranging in size from 0.01 to 10 microns in diameter, resinous binder, and carbon fibers or carbon fiber precursors in a mold, and subsequently subjecting the combined components to pressure and heat to carbonize the resinous binder by methods, thereby providing the carbon-carbon composite preform having particulate titanium carbide uniformly distributed throughout its mass. Prior to combining the titanium carbide and the binder with the fibers in this process, the particulate titanium carbide may be mixed with liquid binder, the resulting TiC/binder mixture may then solidified, and the resulting solid TiC/binder mixture may be ground into a fine powder for use in the process. Also, compositions for preparing a carbon-carbon composite friction materials, and methods of improving wear and dynamic stability in a carbon-carbon composite brake discs. | 07-28-2011 |
| 20120119398 | MAKING CARBON ARTICLES FROM COATED PARTICLES - Methods and compositions relate to manufacturing a carbonaceous article from particles that have pitch coatings. Heating the particles that are formed into a shape of the article carbonizes the pitch coatings. The particles interconnect with one another due to being formed into the shape of the article and are fixed together where the pitch coatings along adjoined ones of the particles contact one another and are carbonized to create the article. | 05-17-2012 |
| 20120153522 | POROUS CARBON SHEET AND PROCESS FOR PRODUCTION THEREOF - A porous carbon sheet obtained by binding separate carbon short fibers with a carbonization product of a resin, wherein the pore mode diameter of the sheet is 45 to 90 μm and the mean fiber diameter of the carbon short fibers is 5 to 20 μm. The sheet can be produced by thermoforming a precursor fiber sheet comprising carbon short fibers of 15 to 30 g/m | 06-21-2012 |
| 20130106010 | METHOD FOR PRODUCING A CERAMIC SUBSTANCE FOR A CERAMIC MATERIAL | 05-02-2013 |
| 20130119571 | METHOD FOR IMPROVING THE FLATNESS OF GRAPHITE FILM, GRAPHITE FILM, AND METHOD FOR PRODUCING SAME - When a raw material graphite film bad in flatness is laminated onto another material, creases and other defects may be caused. In particular, when a graphite film having a large area is laminated, defects such as creases may be often caused. In order to solve such defects, a flatness correction treatment step is performed wherein a raw material graphite film is subjected to heat treatment up to 2000° C. or higher while a pressure is applied thereto. This flatness correction treatment gives a graphite film good in flatness. Furthermore, when the flatness of the raw material graphite film is corrected by use of a thermal expansion of a core, a graphite film small in sagging can be obtained. | 05-16-2013 |
| 20140110869 | METHOD FOR PRODUCING CARBONACEOUS FILM, METHOD FOR PRODUCING GRAPHITE FILM, ROLL OF POLYMER FILM, AND ROLL OF CARBONACEOUS FILM - Disclosed herein is a method for producing an elongated (rolled) carbonaceous film by polymer pyrolysis while suppressing the fusion bonding of the carbonaceous film. The method for producing a carbonaceous film includes the step of heat-treating a polymer film wound into a roll, wherein the heat treatment is performed after the polymer film is wound into a roll to have a gap between adjacent layers of the polymer film at a temperature lower than a pyrolysis onset temperature of the polymer film so that the roll of polymer film as a whole satisfies a relationship that a value obtained by dividing a thickness of a gap between adjacent layers of the polymer film (Ts) by a thickness of the polymer film (Tf) (Ts/Tf) is 0.16 or higher but 1.50 or lower. As a method for forming gaps between the layers of the polymer film, a method in which the polymer film is wound into a roll together with a slip sheet and then the slip sheet is removed can be used, which is effective at suppressing the fusion bonding of a carbonaceous film. | 04-24-2014 |
| 20140197560 | PRODUCTION OF CARBON-FIBER REINFORCED COKE - A method produces carbon fiber-reinforced coke. Carbon fiber-reinforced plastic (CFRP) materials derived from components and semi-finished products are continuously fed through a top side of the drum of a delayed coker as a partial flow or as a main flow, and the CFRP materials sink through the gas phase into the still liquid phase. The carbon fibers are released through carbonization of the resin matrix and incorporated therein during the coking process. The decomposition products of the resin matrix are supplied to a material recovery process. | 07-17-2014 |
| 20140232031 | METHOD FOR PRODUCING A COMPOSITE STRUCTURE COMPOSED OF POROUS CARBON AND ELECTROCHEMICAL ACTIVE MATERIAL - In order to provide an inexpensive product composed of a porous carbon provided with electrochemical active material, said product being suitable particularly for use as a cathode or anode material for a secondary battery, a process comprising the following process steps is proposed: (a) producing a template from inorganic material by gas phase deposition, said template comprising a framework of pores and nanoparticles joined to one another, (b) coating the template framework with an electrochemical active material or a precursor thereof, (c) infiltrating the pores of the template with a precursor substance for carbon, (d) carbonizing the precursor substance to form a carbon layer, (f) removing the template. | 08-21-2014 |
| 20150054187 | METHOD FOR MANUFACTURING CARBONACEOUS FILM AND GRAPHITE FILM OBTAINED THEREBY - In a method for producing a carbonaceous film in which a polymer film is wrapped around a core and is subjected to a heat treatment, material film surfaces during the carbonization step are prevented from fusion, whereby a long carbonaceous having a large area film is obtained. | 02-26-2015 |
| 20150130098 | POLYAMIC ACID, POLYIMIDE, AND METHOD FOR MANUFACTURING GRAPHITE SHEET - Disclosed is a method of fabricating a graphite sheet, including: polymerizing diamines and a dianhydride to form a polyamic acid. The polyamic acid is solvent casted on a substrate and hot baked to form a polyamic acid film or gel film. The polyamic acid film or gel film is biaxially stretched at a high temperature imidization or chemical imidization to form the polyimide film. The polyimide film is then carbonized and graphitized to form a graphite sheet. The diamines include a diamine of Formula 1 and a diamine of Formula 2, and the dianhydride includes a dianhydride of Formulae 3, Formula 4, Formula 5, Formula 6, Formula 7, Formula 8, Formula 9, or combinations thereof. | 05-14-2015 |
| 20150325836 | METHOD FOR PRODUCING COMPOSITE POWDER, AND FOR A POROUS COMPOSITE MATERIAL FOR ELECTROCHEMICAL ELECTRODES THAT IS PRODUCED USING THE COMPOSITE POWDER - The invention relates to a method for economically producing a composite powder made of carbon and electrochemical active material. According to the invention, a melt made of a meltable carbon precursor substance having nanoparticles made of an active material distributed in the melt is provided, and said melt is divided into the composite powder, in which nanoparticles made of the active material are embedded in a matrix made of the carbon precursor substance. A porous composite material produced using the composite powder is used to produce an electrode for a secondary battery, in particular for use as an anode material. The production of the composite material comprises the following steps: providing template particles made of inorganic template material, producing a powder mixture of the composite powder and the template particles, heating the powder mixture and softening the composite powder in such a way that the composite powder penetrates the pores and is carbonated, and removing the template material to form the porous electrochemical composite material. | 11-12-2015 |
| 20150361612 | METHOD FOR PRODUCING A CURVED HONEYCOMB STRUCTURE MADE FROM COMPOSITE MATERIAL - A method of fabricating a curved cellular structure includes making an expandable fiber structure by multilayer weaving between layers of warp yarns and layers of weft yarns, the structure having zones of non-interlinking extending in the thickness of the structure, the non-interlinking zones spaced apart from one another by portions of interlinking between layers of weft yarns, the portions of interlinking offset by one or more weft yarns in a direction parallel to the direction of the layers of weft yarns between each series of these planes; impregnating the fiber structure with a resin; expanding the fiber structure on support tooling to form a cell in the fiber structure at each zone of non-interlinking, the tooling also presenting a curved shape corresponding to the shape of the cellular structure that is to be fabricated; and polymerizing the resin of the fiber structure to form a curved cellular structure. | 12-17-2015 |
| 20160002046 | METHOD OF PRODUCING A GRAPHENE MATERIAL - A method of producing graphene powder includes the heat treatment of a graphitizable polymer film to at least 2000 degrees C. to form a heat treated film having a substantially turbostratic graphitic structure. The heat treated film is then sheared along a plane substantially parallel to a major surface of the heat treated film to form a particulate having a thickness less than 100 nanometers. | 01-07-2016 |
| 20160023903 | METHOD FOR MAKING CARBON FIBER FILM - A method for making carbon fiber film includes drawing a carbon nanotube film from a carbon nanotube array. The carbon nanotube film is successively passed through a first room and a second room. A carrier gas and a carbon source gas are supplied to the first room and a carbon layer is formed on the carbon nanotube film located in the first room. The carbon nanotube film with the carbon fiber film is taken into the second room from the first room, and the carbon layer is graphitized. | 01-28-2016 |
| 20160115086 | METHODS AND MATERIALS FOR FORMING IN-SITU CAVITIES FOR SILICON-BASED CERAMIC MATRIX COMPOSITE COMPONENTS - Methods and materials for forming in-situ features in a ceramic matrix composite component are described. The method of forming a ceramic matrix composite component with cooling features, comprises forming a preform tape, laying up said preform tape to a desired shape, placing a high-temperature resistant fugitive material insert of preselected geometry in the preform tape of the desired shape, compacting the preform tape of the desired shape, burning out the preform tape of the desired shape, melt infiltrating the desired shape, removing the high-temperature resistant insert to form the cooling features during one of the burning out or the melt infiltrating or following the burning out or the melt infiltrating. | 04-28-2016 |
| 20160169311 | METHOD FOR MANUFACTURING VEHICLE BRAKE DISC | 06-16-2016 |
| 20160194250 | METHOD FOR PRODUCING GRAPHITE FILM | 07-07-2016 |
| 20160204443 | POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, PRECURSOR SHEET, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL | 07-14-2016 |
| 264290200 | Filaments | 21 |
| 20090096119 | Method for Producing Single- or Multi-Layered Fiber Preforms by the TFP Process as Well as a Fixing Thread and Backing Layer - Disclosed is a method for producing single- or multi-layered fiber performs by the TFP process with fiber strands which are aligned substantially such that they are oriented with the flux of force, are laid on at least one backing layer and are attached by at least one fixing thread. After completion of the TFT process, at least one fiber preform is introduced into a fixing device to secure the position of the fiber strands and the fixing threads and/or the backing layers are at least partially removed. As a result of the preferably complete removal of the fixing threads and/or the backing layer from the fiber preform, the latter has virtually ideal mechanical, quasi isotropic properties. In a preferred variant, the fixing threads and/or the backing layers are formed by a water-soluble material, so that they can be completely dissolved by water as the solvent and flushed out. | 04-16-2009 |
| 20110316179 | PROCESSES FOR PRODUCING A POLYMER-BONDED FIBER AGGLOMERATE AND A FIBER-REINFORCED COMPOSITE MATERIAL - A polymer-bonded fiber agglomerate includes short fibers selected from carbon, ceramic materials, glasses, metals and organic polymers, and a polymeric bonding resin selected from synthetic resins and thermoplastics. The fiber agglomerates have an average length, measured in the fiber direction, of from 3 mm to 50 mm and an average thickness, measured perpendicularly to the fiber direction, of from 0.1 mm to 10 mm. At least 75% of all of the contained fibers have a length which is at least 90% and not more than 110% of the fiber agglomerate average length. A fiber-reinforced composite material having the fiber agglomerate and processes for the production thereof are also provided. | 12-29-2011 |
| 20120126442 | PROCESSES FOR PRODUCING POLYACRYLONITRILE-BASE PRECURSOR FIBERS AND CARBON FIBERS - A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min. | 05-24-2012 |
| 20120139143 | PLASTICIZING AGENT, COMPOSITION FOR POLYACRYLONITRILE-BASED PRECURSOR AND FABRICATION METHOD OF CARBON FIBER - A plasticizing agent and a composition for fabricating a polyacrylonitrile-based fiber precursor and a fabrication method of a polyacrylonitrile-based carbon fiber are provided. The plasticizing agent includes a copolymer represented by formula (I) or a derivative of formula (I): | 06-07-2012 |
| 20120280412 | FIBERS FOR PRODUCING COMPOSITE MATERIALS AND METHODS OF PRODUCING CARBON FIBER PRECURSOR FIBERS AND CARBON FIBERS - A method for producing carbon-containing fibers, in particular carbon fibers and/or the precursor fibers thereof, contains the following steps: a) providing one or more starting material fibers; b) bringing the one or more starting material fibers in contact with at least one treatment fluid, wherein a treatment fluid has at least one silicon compound and has a content of 0-25 wt. % water, in relation to the total weight of the treatment fluid; c) treating the one or more starting material fibers with the treatment fluid during a treatment time having a duration of at least three minutes at a treatment temperature ranging from 126 C to 450 C. | 11-08-2012 |
| 20130113130 | METHOD FOR PREPARING CARBON FIBER AND PRECURSOR FIBER FOR CARBON FIBER - The method for preparing a carbon fiber of the present invention includes the steps of: preparing a polyacrylonitrile-based polymer solution; spinning the polyacrylonitrile-based polymer solution to prepare a precursor fiber for a carbon fiber, the precursor fiber having a water content of 20-50%; converting the precursor fiber for a carbon fiber into a preliminary flame-retarded fiber while stretching the precursor fiber for a carbon fiber at an elongation rate of −10˜−0.1% or 0.1˜5% at 180˜220° C. in air; converting the preliminary flame-retarded fiber into a flame-retardant fiber while stretching the preliminary flame-retarded fiber at an elongation rate of −5˜5% at 200˜300° C. in air; and heating the flame-retardant fiber under an inert atmosphere to carbonize the flame-retardant fiber. | 05-09-2013 |
| 20130119572 | Method for Producing Carbon-Fiber Bundles - The invention provides a method for producing carbon fiber bundles excellent in productivity without impairing the quality in the process for producing carbon fibers. The method includes a flame-retarding step, a precarbonization step, and a carbonization step. When traveling pitches of the fiber bundles in the flame-retarding step, precarbonization step and carbonization step are represented by P | 05-16-2013 |
| 20130214442 | METHOD FOR PRODUCTION OF CARBON NANOFIBER MAT OR CARBON PAPER - Method for the preparation of a non-woven mat or paper made of carbon fibers, the method comprising carbonizing a non-woven mat or paper preform (precursor) comprised of a plurality of bonded sulfonated polyolefin fibers to produce said non-woven mat or paper made of carbon fibers. The preforms and resulting non-woven mat or paper made of carbon fiber, as well as articles and devices containing them, and methods for their use, are also described. | 08-22-2013 |
| 20130214443 | PROCESS FOR THE PRODUCTION OF CARBON FIBERS FROM POLY(ALPHA(1->3) GLUCAN) FIBERS - A process is provided for preparation of carbon fibers based from fibers of poly(α(1→3) glucan). The method comprises three thermal exposures at progressively higher temperatures to drive off volatiles, thermally stabilize the glucan fiber, and carbonize the thermally stabilized fiber. The carbon fibers prepared according to the process hereof are strong, stiff, tough, and easily handled. | 08-22-2013 |
| 20130264733 | POLYACRYLONITRILE FIBER MANUFACTURING METHOD AND CARBON FIBER MANUFACTURING METHOD - A method of manufacturing a polyacrylonitrile fiber includes a spinning process in which a spinning dope including polyacrylonitrile is spun; a first drawing process; a drying process; and a second hot drawing process in this order. | 10-10-2013 |
| 20130277875 | Method and Apparatus for Producing Carbon Fiber - A carbon fiber centrifugal head includes an interior mechanism that at least partially controls flow of precursor material to exterior holes of the head during spinning. | 10-24-2013 |
| 20130313739 | MEMBRANE-FORMING DOPE SOLUTION FOR CARBON MEMBRANES AND METHOD FOR PRODUCING CARBON HOLLOW FIBER MEMBRANES USING THE SAME - A membrane-forming dope solution for carbon membranes, comprising a polyphenyleneoxide polymer, ammonium nitrate, and a solvent having a boiling point of 100° C. or more and being capable of dissolving these components; the membrane-forming dope solution having a concentration of the polyphenyleneoxide polymer of 20 to 40 wt. %, and a concentration of the ammonium nitrate of 1 to 10 wt. %. The membrane-forming dope solution for carbon membranes is subjected to vacuum defoaming, and then subjected to a spinning step, thereby producing a carbon hollow fiber membrane. The use of the membrane-forming dope solution for carbon membranes can reduce yarn breakage during spinning or the formation of pinhole defects in the resulting polymer hollow fiber membranes. | 11-28-2013 |
| 20140151914 | PROCESS FOR MANUFACTURING CARBON FIBRES AND PLANT FOR THE ACTUATION OF SUCH PROCESS - Process for manufacturing carbon fibres, includes a first spinning step of a fibre of PAN precursor and a second oxidation/carbonization step of the fibre and the plant thereof. The spinning and oxidation/carbonization steps are performed directly in line and continuously, and hence without any stocking buffer area of a PAN precursor between the two steps. The spinning step is performed at low speed, so that the output speed from the spinning step, downstream of the stretching operations, is a speed falling within the range of the suitable processing speeds in the subsequent oxidation/carbonization step. Moreover, the spinning step is performed in a modular way on a plurality of spinning modules aligned in one or more rows, each spinning module having a productivity not above 10% of the overall productivity of the spinning step. In any individual spinning module, the fibres downstream of the spinning area follow zig-zag, rectilinear paths. | 06-05-2014 |
| 20140175688 | METHODS OF MAKING CARBON FIBER FROM ASPHALTENES - Making carbon fiber from asphaltenes obtained through heavy oil upgrading. In more detail, carbon fiber is made from asphaltenes obtained from heavy oil feedstocks undergoing upgrading in a continuous coking reactor. | 06-26-2014 |
| 20140306364 | CONTROLLED CHEMICAL STABILIZATION OF POLYVINYL PRECURSOR FIBER, AND HIGH STRENGTH CARBON FIBER PRODUCED THEREFROM - Method for the preparation of carbon fiber, which comprises: (i) immersing functionalized polyvinyl precursor fiber into a liquid solution having a boiling point of at least 60° C.; (ii) heating the liquid solution to a first temperature of at least 25° C. at which the functionalized precursor fiber engages in an elimination-addition equilibrium while a tension of at least 0.1 MPa is applied to the fiber; (iii) gradually raising the first temperature to a final temperature that is at least 20° C. above the first temperature and up to the boiling point of the liquid solution for sufficient time to convert the functionalized precursor fiber to a pre-carbonized fiber; and (iv) subjecting the pre-carbonized fiber produced according to step (iii) to high temperature carbonization conditions to produce the final carbon fiber. Articles and devices containing the fibers, including woven and non-woven mats or paper forms of the fibers, are also described. | 10-16-2014 |
| 20140353861 | METHOD FOR STABILIZING LIGNIN FIBER FOR FURTHER CONVERSION TO CARBON FIBER - A method for producing a stabilized lignin fiber from softwood alkaline lignin by heat treatment in the absence of oxidant is disclosed. The stabilized lignin fiber can be further treated to obtain carbon fiber. | 12-04-2014 |
| 20150035183 | PROCESS OF MELT-SPINNING POLYACRYLONITRILE FIBER - Processes for producing carbon fibre, the filament thereof and pre-oxidized fibre are provided. In one embodiment, the gel spinning of polyacrylonitrile filament is achieved by using small-molecule gelling agent, and the carbon fibre obtained thereby is increased by 15% to 40% in tensile strength and by 20% to 35% in toughness. In another embodiment, the melt spinning process of polyacrylonitrile is conducted by using imidazole type ion liquid as plasticizer, the process reduces environment pollution, is suitable for industrial production and the fibre produced thereby is improved in its strength. In yet another embodiment, polyacrylonitrile pre-oxidized fibre is produced by melt spinning, so low cost and controllable pre-oxidization of polyacrylonitrile can be achieved. In a further embodiment, high strength carbon fibre is manufactured by using polymer thickening agent. In another further embodiment, low cost and controllable pre-oxidization of polyacrylonitrile is achieved by conducting pre-oxidization before spinning, minimizing skin-core structure, so as to produce high performance carbon fibre, and reduce the production cost of carbon fibre greatly. | 02-05-2015 |
| 20160032495 | Method for Producing Carbon Fibers - A method for producing a carbon fiber bundle includes the acts of: providing at least one precursor, mechanically stabilizing the at least one precursor, and subsequently introducing the mechanically stabilized precursor into at least one thermal treatment device for converting the at least one precursor into at least one carbon fiber bundle. A device for producing a carbon fiber bundle has at least one oxidation furnace and a downstream carbonizing device for carbonizing a precursor to form the carbon fiber bundle, wherein a stabilizing device for mechanically stabilizing the precursor, which is introduced into the oxidation furnace, is connected upstream of the at least one oxidation furnace. | 02-04-2016 |
| 20160040322 | CARBON FIBER MANUFACTURING METHOD - A carbon fiber manufacturing method with which high quality carbon fibers can be obtained. The carbon fiber manufacturing method includes introducing carbon fiber precursor fiber bundles that have been spread in sheet form into a flameproofing furnace, flameproofing the carbon fiber precursor fiber bundles introduced into the flameproofing furnace in a temperature range of 200° C. to 300° C., introducing the flameproofed fiber bundles obtained from the flameproofing treatment into a carbonization furnace, and carbonizing the flameproofed fiber bundles introduced into the carbonization furnace in a temperature range of 300° C. to 2500° C. The flameproofing furnace includes a heat-treatment chamber and a sealing chamber adjacent thereto and discharges air from the sealing chamber to outside of the flameproofing furnace. The space velocity (SV) (1/h) of hot air blown from the heat-treatment chamber into the sealing chamber satisfies relationship: 80≦SV≦400. | 02-11-2016 |
| 20160160395 | GAS SUPPLY BLOWOUT NOZZLE AND METHOD OF PRODUCING FLAME-PROOFED FIBER AND CARBON FIBER - The nozzle body of the gas supply blowout nozzle ( | 06-09-2016 |
| 20160186365 | DENSIFICATION OF POLYACRYLONITRILE FIBER - Provided herewith is a process for improving tensile strength of precursor PAN fiber during the spinning stage in the manufacturing process. According to the process of the present invention, precursor fiber is made denser as it enters each wash bath. This progressive densification approach is useful for all PAN precursor bath draw/wash processes where a need for careful control of fiber network density and structure is required for improved carbon fiber properties. | 06-30-2016 |
| 20090085249 | FILM STRETCHING METHOD, FILM STRETCHING DEVICE AND SOLUTION CASTING METHOD - In a first zone of a tenter section, damp air is applied to side edge portions of a TAC film, thereby providing the TAC film with a water content profile in which water content decreases from the side edge portions toward a center portion. This water content profile causes the TAC film to have a birefringence profile in which a birefringence decreases from the side edge portions toward the center portion. The TAC film is stretched in a width direction while the side edge portions are being held with clips. Due to a low flexibility at the side edge portions during the stretching process, the birefringence of the TAC film increases such that an increase in the birefringence becomes larger from the side edge portions toward the center portion. A difference of the birefringence in the width direction before the stretching process compensates a difference of the increase in the birefringence in the width direction after the stretching process. The water content of the TAC film is then evaporated. | 04-02-2009 |
| 20100013121 | Process for the production of polylactic acid film - The invention relates to the sequential biaxial stretching of a thin film made of a polylactic acid resin containing as large an amount of a plasticizer as 10 to 50 wt % and aims at solving the problematic grip failure in the widthwise stretching step which failure is caused by the lowering in film flatness occurring in gripping the film with clips continuously. A process for the production of polylactic acid film which comprises subjecting an unstretched film of a polylactic acid resin containing 10 to 50 wt % of a plasticizer to lengthwise stretching under such conditions as to give a lengthwise stretched film having a thickness of 12 to 100 μm and then subjecting the lengthwise stretched film to widthwise stretching with a tenter for widthwise stretching to form a sequentially biaxially stretched film, characterized in that the clip temperature of the tenter in bringing the lengthwise stretched film passed through guide rolls into contact with the clips and making the film bitten by the clips is adjusted to 70° C. or below. | 01-21-2010 |
| 20100181702 | OPTICAL FILM, POLARIZING PLATE AND DISPLAY DEVICE USING THE SAME, AND MANUFACTURING METHOD THEREOF - The present invention is to provide an optical film which exhibits low hygroscopicity, high transparency, high heat resistance and markedly lowered brittleness, and particularly to provide an optical film which is appropriately employed as a polarizing plate protective film for large liquid crystal display devices and outdoor liquid crystal display devices. The above optical film is characterized in that acrylic resin (A) and cellulose ester resin (B) are incorporated at a weight ratio of 95:5-30:70, weight average molecular weight Mw of aforesaid acrylic resin (A) is at least 80,000, total substitution degree (T) of the acyl group of aforesaid cellulose ester resin (B) is 2.0-3.0, the substitution degree of the acyl group having 3-7 carbon atoms is 1.2-3.0, and weight average molecular weight Mw of aforesaid cellulose ester resin (B) is at least 75,000. It is characterized that the total substitution degree of the acyl group other than carbon atoms of 3-7 of the cellulose ester resin (B) is at most 1.3. | 07-22-2010 |
| 20120217674 | DEVICE AND PROCEDURE FOR EXPANDING THE END OF A PLASTIC PIPE - A device for expanding an end of a pipe made of a plastic having a shape memory includes a plurality of spreading elements movable in a radial direction from a starting position, in which the spreading elements are insertable by a predetermined distance into the end of the pipe, to an outward-extended position, in which spreading surfaces of the spreading elements are each brought into an effective position against an interior surface of the end of the pipe, so as to expand the end of the pipe. A mechanism is configured to move the spreading elements from the starting position to the outward-extended position. An actuator is configured to vary a maximum radial distance of the spreading surfaces in the outward-extended position from a center axis. At least one fastener is configured to lock the radial maximum radial distance set by the actuator. | 08-30-2012 |
| 264290400 | From cellulosic material | 2 |
| 20080258323 | Method for making a bamboo tool handle - A method for making a bamboo-made tool handle, has the following steps. A bamboo material is cut into multiple bamboo strips. Green skins of the bamboo strips are removed to obtain original bamboo strips. The original bamboo strips are steamed with hydrogen peroxide and dried to obtain dried bamboo strips. The dried bamboo strips is turned to obtain turned bamboo woods. The turned bamboo wood is carbonized to obtain carbonized bamboo woods. The carbonized bamboo wood is combined to obtain a bamboo wood bundle, wherein each carbonized bamboo woods are combined at a longitudinal direction. The method for making a bamboo-made tool handle is convenient and could obtain an elastic and tough bamboo tool handle. | 10-23-2008 |
| 20120313271 | METHOD FOR PRODUCING SORBENT MATERIALS - A method of producing carbon-based sorbent by (a) mixing carbon-containing raw materials with group I, II, and/or III oxides and/or hydroxides; (b) carbonizing at low temperatures of between 100° C. and 280° C.; followed by carbonizing at high temperatures of between 280° C. and 500° C., whereby simultaneously dehydrating the hydrates and releasing superheated dry steam at high temperature exceeding 500° C.; and (c) directing the superheated dry steam against the direction of the feed flow. | 12-13-2012 |
| 264290500 | With carbonizing, then adding carbonizable material and recarbonizing | 9 |
| 20090194895 | CVD DENSIFIED PREFORM FOLLOWED BY VPI AND RTM - Method for producing carbon-carbon composite brake discs by: (a) providing annular nonwoven carbon fiber brake disc preforms; (b) carbonizing the brake disc preforms; (c) densifying the carbonized preforms by CVD/CVI (chemical vapor deposition/chemical vapor infiltration); (d) densifying the products of step (c) with isotropic or mesophase pitch by VPI (vacuum pitch infiltration) or RTM (resin transfer molding) processing; (e) carbonizing the preforms to remove non-carbon volatiles from the pitch and to open porosity in the pitch-infused preforms; (f) densifying the products of step (e) with isotropic or mesophase pitch by VPI or RTM processing; (g) carbonizing the preforms to remove non-carbon volatiles from pitch and to open porosity in the pitch-infused preforms; and (h) heat-treating the resulting pitch-densified carbon-carbon composite brake disc preforms. This manufacturing approach reduces lot-to-lot variability in friction performance of the resulting carbon-carbon composite brake discs. | 08-06-2009 |
| 20090230582 | DENSIFICATION OF CARBON FIBER PREFORMS WITH PITCHES FOR AIRCRAFT BRAKES - Low cost isotropic and/or mesophase pitch is used to densify carbon fiber preforms by VPI and/or RTM equipment in place of CVI/CVD processing, for reduced manufacturing cycle times and costs and reduced need for expensive densification equipment. The process includes: heat treating a carbon fiber preform; infiltrating the preform with a pitch feedstock by VPI and/or RTM; carbonizing the pitch-infiltrated carbon fiber preform at 1200-2450° C. with a hold time of 4 hrs to ensure the entire furnace reaches the max temperature; repetition of the pitch infiltration and carbonization steps until the density of the preform is about 1.7 g/cc or higher; and a final heat-treatment of the densified composite. Brake discs manufactured in this way have higher densities and better thermal characteristics, which result in improved mechanical properties and friction and wear performance as compared with conventional CVI/CVD-densified brake discs. | 09-17-2009 |
| 20090273106 | Porous Carbon Membranes and Their Forming Method - The present invention discloses a method for fabricating a carbon membrane having pore regularity. The method comprises: providing a template having a plurality of pores arranged regularly; performing a tubular carbon forming process in the regularly-arranged pores; then performing a removal process to form an annular cavity; performing a carbon forming process in the annular cavity to combine the carbon in the annular cavity with the tubular carbon to thereby form a carbon substance having a thick wall; and repeatedly performing the removal process and the carbon forming process so as to form a carbon membrane having pore regularity. | 11-05-2009 |
| 20100078839 | Pitch densification of carbon fiber preforms - A pitch densification process which is widely applicable in the densification of carbon fiber preforms and stabilized pitch fiber preforms. The process includes: (a.) introducing liquid pitch into a fibrous carbon preform; (b.) carbonizing the pitch-impregnated preform by heating it in the absence of oxidizing agents; and subsequently (c.) further densifying the carbonized pitch-impregnated preform. The pitch used for densification may be coal tar pitch, petroleum pitch, or synthetic pitch. The softening point of the pitch will normally range from 100° C. to 340° C., depending upon the properties to be imparted to the finished product. | 04-01-2010 |
| 20110156297 | DENSIFICATION OF C-C COMPOSITES WITH PITCHES FOLLOWED BY CVI/CVD - A method of manufacturing pitch-based carbon-carbon composite useful as a brake disc, includes (a) providing annular carbon fiber brake disc preform; (b) heat-treating the carbon fiber preform; (c) infiltrating the carbon fiber preform with pitch feedstock by VPI or RTM processing; (d) carbonizing the pitch-infiltrated carbon fiber preform; (e) repeating steps (c) and (d) to achieve a density in the carbon fiber preform of approximately 1.5 g/cc to below 1.7 g/cc; and (f) densifying the preform by CVI/CVD processing to a density higher than 1.7 g/cc. Employing lower cost VPI and/or RTM processing in early pitch densification cycles and using more expensive CVI/CVD processing only in the last densification cycle provides C-C composites in which the pitch-based components resist pullout, resulting in a longer wearing composite. | 06-30-2011 |
| 20110221084 | Honeycomb composite silicon carbide mirrors and structures - Honeycomb silicon carbide composite mirrors and a method of making the mirrors. In a preferred embodiment the mirror is made from a carbon fiber preform molded into a honeycomb shape using a rigid mold. The carbon fiber honeycomb is densified using polymer infiltration pyrolysis or reaction with liquid silicon. A chemical vapor deposited or chemical vapor composite process is utilized to deposit a polishable silicon or silicon carbide cladding on the honey comb structure. Alternatively, the cladding may be replaced by a free standing replicated CVC SiC facesheet that is bonded to the honeycomb. | 09-15-2011 |
| 20110254182 | METHOD FOR REDUCING VARIABILITY IN CARBON-CARBON COMPOSITES - Method for producing carbon-carbon composite brake discs by: (a) providing annular nonwoven carbon fiber brake disc preforms; (b) carbonizing the brake disc preforms; (c) densifying the carbonized preforms by CVD/CVI (chemical vapor deposition/chemical vapor infiltration); (d) densifying the products of step (c) with isotropic or mesophase pitch by VPI (vacuum pitch infiltration) or RTM (resin transfer molding) processing; (e) carbonizing the preforms to remove non-carbon volatiles from the pitch and to open porosity in the pitch-infused preforms; (f) densifying the products of step (e) with isotropic or mesophase pitch by VPI or RTM processing; (g) carbonizing the preforms to remove non-carbon volatiles from pitch and to open porosity in the pitch-infused preforms; and (h) heat-treating the resulting pitch-densified carbon-carbon composite brake disc preforms. This manufacturing approach reduces lot-to-lot variability in friction performance of the resulting carbon-carbon composite brake discs. | 10-20-2011 |
| 20120104641 | APPARATUS FOR PITCH DENSIFICATION - A pitch densification apparatus may be used to form a carbon-carbon composite material. In some examples, the apparatus is configured to pitch densify a material using one or more of a plurality of different pitch densification techniques. For example, the apparatus may densify a material with a selectable one of the resin transfer molding cycle, the vacuum-assisted resin transfer molding cycle, and/or the vacuum pressure infiltration cycle. The apparatus may respond to initial or changing properties of a material to be densified. In some additional examples, the apparatus includes a mold configured to receive a preform and a portion of solid pitch separate from the preform. The apparatus may include a heating source thermally coupled to the mold that is configured to heat the solid pitch above a melting temperature of the solid pitch. The apparatus may melt the pitch without external pitch melting equipment. | 05-03-2012 |
| 20150069646 | CARBON-CARBON COMPOSITES FORMED USING PYROLYSIS OIL AND METHODS OF FORMING THE SAME - A technique of forming a carbon-carbon composite material may include infusing pyrolysis oil into a porous preform, polymerizing at least some components of the pyrolysis oil infused in the preform to form a phenolic resin, and pyrolyzing the phenolic resin to form a partially densified preform. Carbon-carbon composites formed from porous preforms in which pyrolysis oil comprising a phenolic compound and at least one of an aldehyde or ketone compound is disposed in pores of the preform are also described. | 03-12-2015 |
| 20090115099 | Process for making a monofilament-like product - The invention relates to a process for making a monofilament-like product from a precursor containing a multitude of continuous polyolefin filaments, comprising exposing the precursor to a temperature within the melting point range of the polyolefin for a time sufficient to at least partly fuse adjacent fibres and simultaneously stretching the precursor at a draw ratio of at least 2.8. With the process according to the invention a monofilament-like product can be made that shows improved tensile properties; making it very suitable for application as e.g. fishing line. | 05-07-2009 |
| 264290600 | In specific atmosphere (except vacuum or air) | 5 |
| 20080230935 | Methods for producing a pitch foam - Methods to produce a pitch foam from a hydrocarbon carbonaceous precursor material. A gaseous blowing material is dissolved in the carbonaceous precursor material, and the resultant solution is pressurized in a vessel. As the solution is exhausted from the vessel, the gaseous blowing agent and the hydrocarbons of the carbonaceous precursor material evaporate from the pressurized solution to form a foam-like solution. The pitch foam is formed from the foam-like solution by directing the foam-like solution onto a surface, whereupon, the foam-like solution solidifies into the pitch foam. | 09-25-2008 |
| 20120168975 | METHOD FOR PROCESSING A POROUS ARTICLE - A method of processing a porous article includes distributing a blended material that includes an electrically conductive material and a binder into a cavity of a mold that is at a temperature below a curing temperature of the binder. The electrically conductive material is formed from particles of the electrically conductive material that have a size distribution such that 10 vol % of the particles are less than 12 micrometers in diameter, 50 vol % of the particles are less than 27 micrometers in diameter, and 90 vol % of the particles are less than 53 micrometers. The blended material is compressed within the cavity under a molding pressure, and the mold is heated to a curing temperature of the binder to form a molded article. | 07-05-2012 |
| 20140103558 | Polyaniline/carbon nanotube sheet nanocomposites - A method allows for preparation of CNT nanocomposites having improved mechanical, electrical and thermal properties. Structured carbon nanotube forms such as sheet, yarn, and tape are modified with π-conjugated conductive polymers, including polyaniline (PANI), fabricated by in-situ polymerization. The PANI modified CNT nanocomposites are subsequently post-processed to improve mechanical properties by hot press and carbonization. | 04-17-2014 |
| 20140332993 | METHOD FOR PRODUCING GRAPHITE SHEET - With a manufacturing method of a graphite sheet, a cavity-forming sheet having a mesh structure or a nonwoven fabric structure is firstly impregnated with polyamide acid and then molded into a sheet. The molded sheet is then heat treated to imidize polyamide acid so as to produce a polyimide sheet composed of polyimide and the cavity-forming sheet disposed in polyimide. The polyimide sheet is then fired in a non-oxidizing atmosphere to pyrolyze the polyimide so as to produce the graphite sheet. The cavity-forming sheet is made of material which maintains a shape thereof when the polyimide sheet is produced and which gasifies and loses at least 80% of its weight when the polyimide is pyrolyzed. | 11-13-2014 |
| 20150042000 | METHOD FOR PREPARING GRAPHENE PAPER - Provided is a method for preparing graphene paper, comprising the followings steps: placing a clean substrate into a reaction chamber, then introducing protective gas into the reaction chamber to purge out air in the reaction chamber; heating the substrate at a temperature of 800 to 1100° C.; continuously introducing carbonaceous material into the reaction chamber for 100 to 300 min, stopping the introduction of carbonaceous material into the reaction chamber, and at the same time stopping heating of the substrate, then cooling the substrate at a rate of 5 to 30° C./min, finally, stopping the introduction of the protective gas, thereby obtaining graphene paper on the surface of said substrate. | 02-12-2015 |
| 264290700 | Controlling varying temperature or plural heating steps | 4 |
| 20120280413 | REFRACTORY CARBON-BONDED MAGNESIA BRICK AND PROCESS FOR PRODUCING IT - The disclosure relates to a process for producing a refractory, ceramically fired, carbon-bonded magnesia brick whose matrix is more than 70% by weight, in particular from 80 to 98% by weight, of MgO grains and also a carbon framework binder matrix resulting from carbonization, and pores, wherein the MgO grains are fixed by means of carbon bonding of the carbon framework and at least 30%, in particular from 50 to 100%, of the MgO grains have at least one sintering bridge resulting from the ceramic firing. | 11-08-2012 |
| 20140015153 | PROCESS FOR PRODUCING GRAPHITE FILM - The present invention performs special heat treatment on a polymer film in a temperature range from (i) a lower limit to temperature rise being equal to or higher than a starting temperature of thermal decomposition of the polymer film, i.e., which is a temperature observed at an early stage of the thermal decomposition of the polymer film, to (ii) an upper limit to temperature rise being equal to or lower than an intermediate temperature of thermal decomposition of the polymer film. This reduces foaming in the film during graphitization treatment following the special heat treatment. Thus, even with a higher heating rate for graphitization, it is possible to produce a graphite film having good quality. | 01-16-2014 |
| 20140339718 | FIBER-REINFORCED SILICON CARBIDE COMPOSITE MATERIALS, METHOD FOR PRODUCING THE FIBER-REINFORCED SILICON CARBIDE COMPOSITE MATERIALS, AND USES OF THE FIBER-REINFORCED SILICON CARBIDE COMPOSITE MATERIALS - Silicon carbide composite materials contain CSiC with a density of 2.95 to 3.05 g/cm | 11-20-2014 |
| 20190144279 | METHOD FOR PREPARING CARBON MATERIAL USING POLYOLEFIN-BASED PLASTIC AND CARBON MATERIAL PREPARED THEREFROM | 05-16-2019 |
