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8137810 Carbon fiber, process for production of polyacrylonitrile-base precursor fiber for carbon fiber production, and process for production of carbon fiber  
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...
8124045 Method of selective purification of armchair carbon  
The present invention provides a method of selectively extracting metallic armchair carbon nanotubes alone from the mixture of carbon nanotubes of mixed chiralities, wherein vacant lattice defects...
8052918 Carbon-based material and method of producing the same, and composite material and method of producing the same  
A method of producing a carbon-based material having an activated surface includes: (a) mixing an elastomer and a carbon material, and dispersing the carbon material by applying a shear force to...
8043693 Solution containing flame-resistant polymer and carbon molding  
A flame-resistant polymer excels in moldability capable of providing a flame-resistant molded item of novel configuration; a relevant flame-resistant polymer solution; a process for easily...
7790136 Method for preparing porous fabrics  
A method for preparing porous fabrics is disclosed. The method includes transporting PAN-based oxidized fabrics to a thermal treatment chamber, which provides multi-pipe to introduce oxygenated gas...
7763228 Method of producing carbon nanomaterials and centrifugal melt spinning apparatus  
A carbon nanomaterial produced by: performing centrifugal melt spinning of core-shell particles that are prepared by using fine particles containing a carbon precursor polymer and a thermally...
7749479 Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same  
The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method...
7708805 Method of producing carbon fibers, and methods of making protective clothing and a filter module  
Porous carbon fibers, whose active centers are formed by pores that are filled at least in part by carbon and/or metal and/or metal carbide, obtainable by carbonization of organic or inorganic...
7641884 Method for fabricating carbon nanotubes and carbon nano particles  
Disclosed is a method of fabricating carbon nanotubes and carbon nano particles, the method comprising: providing a plurality of carbon micro carriers on a silicon substrate; forming a plurality of...
7534484 Thermosetting resin composite material and method for producing the same  
The present invention provides a thermosetting resin composite material excellent in mechanical strength and wear resistance at high temperature, which is achieved by converting graphite into...
7470417 Ozonation of carbon nanotubes in fluorocarbons  
The present invention is generally directed to methods of ozonating CNTs in fluorinated solvents (fluoro-solvents), wherein such methods provide a less dangerous alternative to existing ozonolysis...
7413681 Process to dewater a soot water slurry obtained in a gasification process  
A process for partial oxidation of a hydrocarbon gas or liquid, involving the steps of partial oxidation and removal of soot by forming a slurry having water and carbon from the gaseous oxidation...
7223376 Apparatus and method for making carbon fibers  
A method and apparatus for the carbonization of polyacrylonitrile (PAN) precursor fibers. The apparatus comprises a furnace, or series of furnaces in side-by-side arrangement. Each furnace includes...
7090819 Gas-phase process for purifying single-wall carbon nanotubes and compositions thereof  
The present invention relates to an all gas-phase process for the purification of single-wall carbon nanotubes and the purified single-wall carbon nanotube material. Known methods of single-wall...
7087207 Method for forming an array of single-wall carbon nanotubes in an electric field and compositions thereof  
This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall...
7067051 Process for producing carbonized product used for producing activated carbon for electrode of electric double-layer capacitor, and organic material for carbonized product  
To produce a carbonized product used for producing activated carbon for en electrode of an electric double-layer capacitor, a condensed polycyclic aromatic pitch having an optical anisotropic rate...
6967014 Method of obtaining a carbon fiber fabric by continuously carbonizing a cellulose fiber fabric  
The carbonization of cellulose fiber fabric comprises an initial stage of heat treatment up to 250° C. to 350° C., with a relatively high mean temperature rise speed of 10° C./min to 60° C./...
6890507 Ozone treatment of fly ash  
Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and over saturation with ozone is avoided. In a further embodiment...
6869581 Hollow graphene sheet structure, electrode structure, process for the production thereof, and device thus produced  
A hollow graphene sheet structure has at least one pair of hollow graphene sheet materials disposed in a continuous form, in which the adjacent ends of the pair of hollow graphene sheet materials...
6635199 Process for producing a precursor fiber bundle and a carbon fiber bundle  
A separable tow of elongated polymeric filaments comprises a plurality of distinct sub-tows lightly and individually and separably joined, as by light crimping together along their edges or, if...
6589904 Activated carbon and method for producing it  
The present invention provides an activated carbon produced by a process, which includes: activating a carbonaceous material, to obtain an activated carbonaceous material; andcontacting the...
6582588 High temperature, low oxidation stabilization of pitch fibers  
The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the...
6576212 Process for the production of carbonized material  
A process of producing a carbonized material, which includes a step of treating the biomass with a microwave for a period of time sufficient to carbonize an inner region thereof but insufficient to...
6528036 Milled carbon fiber and process for producing the same  
Milled carbon fibers are provided which have a fiber cut surface and a fiber axis intersecting with each other at cross angles, the smaller one thereof being at least 65° on the average. The ...
6527988 Process of making carbon fiber with sharp ends  
Carbonaceous fibers having sharp ends and which are useful as an electron-emitting material, for example, in cold-cathode display devices. Carbonaceous fibers having a structure such that planes...
6524501 Pitch fiber bundle and pitch type carbon fiber bundle and method for production thereof  
This invention provides a pitch fiber bundle for carbon fibers of small size, a carbon fiber bundle, and a method for the production thereof, i.e. a method for the production of carbon fibers of a...
6323160 Carbon-carbon composite material made from densified carbon foam  
A carbon-carbon composite material is made by providing an open-celled carbon foam preform, and densifying the preform with carbonaceous material. The open-celled carbon foam preform may be oxygen...
6241923 Process for the production of carbon fibers  
A process for the production of carbon fibers, including melt-spinning mesophase pitch having an optically anisotropic content of at least 90%, a softening point of 190° C. to 280° C. and a h...
6228343 Method for producing isotropic pitch, activated carbon fibers and carbon materials for non-aqueous secondary battery anodes  
A method for preparing a modified optically isotropic pitch comprising, preparing a synthetic pitch by reacting a member selected from the group consisting of a conjugated polycyclic hydrocarbon...
6194344 Process for preparing carbonaceous material carrying ultrafinely dispersed metal  
A process for the preparation of a high-softening-point pitch rich in mesopores having a softening point measured by temperature gradient method of 150° C. or higher, a weight loss by heating up ...
6171696 Method for producing carbon fiber, carbon fiber, prepreg, and molded article from fiber-reinforced composite material  
The resent invention provides a carbon fiber which enables a molded article produced from a fiber-reinforced composite material using the carbon fiber to exhibit excellent flexibility and to be...
6156287 Method for preparing pan-based activated carbon fabrics  
PAN-based oxidized fabrics are activated by heating at a temperature of 700-1000° C. for 1 minute to 1 hour with the introduction of moisturized carbon dioxide gas. The resulting PAN-based ...
6077463 Process for producing graphite material for negative electrode used in lithium secondary battery  
A process for producing graphite materials for a negative electrode used in a lithium secondary battery which process includes the steps of packing carbon materials having an average particle...
5994261 Method of producing activated carbon fiber  
A pitch-type fiber convertible to an activated carbon fiber is infusiblized with an infusiblizing gas and the infusiblized fiber is activated with an activating gas, such as steam, to produce an...
5990041 Mesoporous activated carbon filaments  
This invention relates to a mesoporous carbon material in the form of filaments having a high surface area. A process is also provided to produce mesoporous carbon material of high surface area....
5928986 Method for activating a woven or non-woven textile sheet of continuous carbonized filaments or spun carbonized yarn  
A method of activating a fiber sheet comprising carbonized filaments or spun carbonized yarn includes causing the sheet to travel horizontally through a furnace including at least one horizontal...
5882621 Method of preparation of carbon materials for use as electrodes in rechargeable batteries  
A method of producing carbon materials for use as electrodes in rechargeable batteries. Electrodes prepared from these carbon materials exhibit intercalation efficiencies of ≉80% for lithium, low i...
5853865 Treatment of vapor-grown carbon fibers for fiber-polymer matrix composites  
Vapor-grown carbon fibers from methane produced in globular clumps of individual fibers of about 0.5 to 50 micrometers in length are rendered infiltratable and wettable with molten plastic for...
5853429 Method for converting multidimensional sheet structures consisting of polyacrylonitrile fibres into the thermally stabilized stage  
Method for converting two-dimensional or three-dimensional sheet structures consisting of polyacrylonitrile fibres or substantially of polyacrylonitrile fibres, such as woven fabrics, layered...
5840265 Carbon fibers and process for their production  
Pitch based carbon fibers characterized in that their thermal conductivity is at least 1,000 W/mK as measured at room temperature, their electrical resistivity is at most 1.2 μΩm, their ten...
5834114 Coated absorbent fibers  
Fiber material for adsorbing contaminants is prepared according to the steps of preparing coating a glass or mineral fiber substrate with a resin, cross-linking the resin, heating the coated fiber...
5763103 Biregional precursor fiber having an outer oxidation stabilized region and method of manufacture  
A novel flexible biregional carbonaceous fiber is disclosed comprising an inner core region of a thermoplastic polymeric material and an outer region of a carbonaceous sheath. The flexible...
5672323 Activated carbon flue gas desulfurization systems for mercury removal  
Activated carbon injection is provided for mercury removal in a flue gas treatment system having an electrostatic precipitator and a wet flue gas desulfurization tower by injecting fresh activated...
5643547 Process for producing carbon fibers  
A process for preparing mesophase pitch based carbon fibers is disclosed, wherein mesophase pitch fibers are gas-phase nitrated in an atmosphere of an oxygen-containing gas such as air or an inert...
5603867 Method of production for active carbon electrode for use as electrical double layer condenser and active carbon electrode obtained thereby  
It is the objective of the present invention to provide an active carbon electrode which is of sufficient mechanical strength to be formed into a large plate, may be suitably used as an electrical...
5595720 Method for producing carbon fiber  
A method for producing carbon fiber comprising applying an infusibilization to a pitch fiber yarn made using mesophase pitch as a starting material in a state with substantially no tension applied...
5593776 Fluororesin composites  
The fluororesin composite material with high mechanical strength characteristics and wear resistance comprising 99 to 40 parts by weight of a fluororesin, e.g. polytetrafluoroethylene, and 1 to 60...
5587257 Method of making lithium-ion cell having deactivated carbon anodes  
A method of making a secondary, lithium-ion cell having a carbon anode including the step of deactivating the carbon anode by heating the carbon in the presence of oxygen for a time sufficient and...
5540905 Optically anisotropic pitch for manufacturing high compressive strength carbon fibers and method of manufacturing high compressive strength carbon fibers  
An optically anisotropic pitch, which is suited for manufacturing particularly high compressive strength carbon fibers in a stable fashion, with satisfactory productivity and continuously, and also...
5494567 Process for producing carbon materials  
A process for producing an optically isotropic reformed pitch useful for various carbon materials is provided. This process comprises mixing a pitch having a ratio of aromatic hydrocarbon fa of...
Matches 1 - 50 out of 253 1 2 3 4 5 6 >