Patent application number | Description | Published |
20080254296 | Carbon Fibrous Conjunct and Composite Material Using Thereof - Carbon fibrous conjunct is provided by adding to carbon fibrous structures, which each comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are bound in the state that the carbon fibers extend outwardly from the granular part, a binder for binding the carbon fibrous structures. The fine carbon fibrous structures having such unique configuration and also bearing physical properties suitable for a filler for a composite material can be provided with a good handleability by this carbon fibrous conjunct. Composite material is prepared by adding to the matrix the carbon fibrous conjuncts, at an amount of 0.1 to 30% by weight based on the total weight of the composite material. | 10-16-2008 |
20090023853 | METHOD FOR MANUFACTURING AGGREGATES OF FINE CARBON FIBERS - Disclosed is a method for manufacturing fine carbon fibers' aggregates having a median diameter of not more than 30 μm, which comprises a pulverization step where a composition which includes (a) fine carbon fibers' aggregates having a median diameter of not less than 30 μm and (b) a dispersion medium undergoes acceleration in order to form a turbulent flow and/or collision flow, thereby shearing force and/or impacting force exert on the (a) component included in the composition and thus the (a) component is pulverized, wherein the value of [I | 01-22-2009 |
20090047428 | METHOD FOR MANUFACTURING CARBON FIBROUS STRUCTURES - Disclosed is a method for manufacturing carbon fibrous structures each of which comprises a three dimensional network of carbon fibers, which is characterized in that, in the procedure of carbon fiber vapor phase deposition utilizing decomposition of organic carbon compound, at least two kinds of organic carbon compounds as carbon sources are in existence at least at predetermined thermal decomposition reaction temperature range in a reaction furnace and partial pressures of gases of these compounds are regulated so that these compounds are decomposed at mutually different decomposition temperatures, and/or a raw material gas supplied into the reaction furnace is forced to form a turbulent flow. It is possible to obtain efficiently the carbon fibrous structures each of which comprises a three dimensional network of carbon fibers and which are suitable as additives to be added to solid materials, such as resin, ceramics, metal, etc., to improve physical properties, such as electric, mechanical, or thermal properties, of the solid materials, and also as additives to be added to liquid materials, such as fuels, lubricant oils, and etc., to improve physical properties, such as thermal property, of the liquid materials. | 02-19-2009 |
20090087638 | FINE CARBON FIBROUS STRUCTURE - Disclosed is a fine carbon fibrous structure which comprises carbon fibers and granular parts, wherein at least two granular parts connect by at least one of the carbon fibers; wherein the fine carbon fibrous structure have a D | 04-02-2009 |
20090121606 | ELECTRON EMISSION SOURCE - An electron emission Source is disclosed, in which the fine carbon fibers included are uniformly dispersed as compared with those in the conventionally known electron emission sources, and the manufacturing of which is also easy. | 05-14-2009 |
20090124746 | THERMOPLASTIC ELASTOMERIC COMPOSITION - A thermoplastic elastomeric composition which have an improved compression set and good electrical properties is provided. | 05-14-2009 |
20090131575 | COLORED POLYMER COMPOSITION - The disclosed is a colored polymer composition which includes carbon fibrous structures and a coloring agent in a polymer matrix, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers. It is the colored polymer composition which includes novel carbon fibrous structures having preferable physical properties as a filler for composite material, and of being able to improve electrical, mechanical and thermal properties of a matrix while maintaining other properties of the matrix, in a small adding amount, and which can show a color as pleases. When a white coloring agent is used as the coloring agent, the darkness in color tone of the polymer which is due to the addition of the carbon fibrous structure can be easily corrected by adding a relatively small amount of the white coloring agent as the coloring agent. | 05-21-2009 |
20090152508 | CONDUCTIVE COATING MATERIAL - The disclosed is a conductive coating material which includes an organic binder component and carbon fibrous structures, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers; and wherein the carbon fibrous structures are contained at a rate of 0.01-50% by weight based on the total weight of the coating material. The conductive coating material gives a coated film which shows a high electrical conductivity and a good film strength, and also coordinates its color as an intended one easily. | 06-18-2009 |
20090162636 | CARBON FIBROUS STRUCTURE - Disclosed is a carbon fibrous structure which comprises a granular part and 2-20 pieces of carbon fibers each of which has an outside diameter of 15-100 nm and which are extend outwardly from the granular part, wherein the granular part is produced in a growth process of the carbon fibers, wherein the size of granular part is 1.3 or more of times larger than the outside diameter of the carbon fibers, and wherein the mean length of the carbon fibers is not more than 20 μm. The carbon fibrous structure improves the physical properties of the matrix, such as electric, mechanical, or thermal properties, while maintaining the other properties of the matrix, even when added at a small amount. | 06-25-2009 |
20090226712 | RECYCLED COMPOSITE MATERIAL - An recycled composite material is disclosed, which is prepared by using as a raw material a waste composite material which comprises a matrix component and carbon fibrous structures added to the matrix, and adding an additional matrix component which is homogeneous and/or heterogeneous with the matrix of the spent composite material, and then kneading them together; wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers, each carbon fiber having an outside diameter of 15-100 nm, and a granular part, at which the fibers are bound in a state that the carbon fibers extend outwardly therefrom, and wherein the granular part is produced in a growth process of the carbon fibers. The recycled composite material performs much the same with the original composite material, and is produced briefly at a low cost. | 09-10-2009 |
20090263642 | ELECTRICALLY CONDUCTIVE SHEET - The disclosed is an electrically conductive sheet which includes carbon fibrous structures in polymer matrix, at a rate of 0.01-30% by weight based on the total weight of the sheet, wherein the carbon fibrous structure comprises a three dimensional network of carbon fibers each having an outside diameter of 15-100 nm, wherein the carbon fibrous structure further comprises a granular part with which the carbon fibers are tied together in the state that the concerned carbon fibers are externally elongated therefrom, and wherein the granular part is produced in a growth process of the carbon fibers. The electrically conductive sheet shows a high electrical conductivity while possessing a good film strength. | 10-22-2009 |
20090274611 | CARBON FIBROUS STRUCTURE - A method for forming a carbon fibrous structure having a granular part, to which a plurality of carbon fibers are bound, includes heating a mixture of a carbon source and a catalyst at a temperature between 800 and 1300° C. to produce a first intermediate, and heating the first intermediate to remove hydrocarbons, at a temperature between 800 and 1200° C. to produce a first product. The method further includes heating the first product at a temperature between 2400 and 3000° C. to produce a final product. The carbon source includes at least two compounds having different decomposition temperatures or a compound that can produce, when heated at a temperature between 800 and 1300° C., at least two components having different decomposition temperatures. The catalyst may include an iron-containing catalyst, which may be introduced into a reaction chamber in a gaseous state, without being deposited on a substrate. | 11-05-2009 |
20090292057 | COMPOSITION FOR REACTIVE INJECTION MOLDING AND REACTIVE INJECTION MOLDED ARTICLE - A composition for injection molding by which a reactive injection molded article of good mechanical strength and electrical conductivity is prepared is provided. | 11-26-2009 |
20100015444 | CARBON FIBROUS STRUCTURE - A three dimensional network of carbon fibrous structure includes a granular part formed by thermal decomposition of carbon in peripheral directions of a catalyst; and a plurality of carbon fibers each having an outside diameter of 15-100 nm and bound to the granular part and extending outwardly from the granular part, wherein an outside diameter of the granular part is larger than an outside diameter of each carbon fiber, and wherein the plurality of carbon fibers are fused together at the granular part during the formation of the carbon fibrous structure. The granular part may look like a knot of the plurality of carbon fibers. The carbon fibers may be tubular carbon fibers that are bound to the granular part, but are not entangled with each other. | 01-21-2010 |
20110036829 | PLANAR HEATING ELEMENT OBTAINED USING DISPERSION OF FINE CARBON FIBERS IN WATER AND PROCESS FOR PRODUCING THE PLANAR HEATING ELEMENT - [Problems] To produce planar heating elements having high exothermic efficiency and provide energy-saving electric carpets, floor heating, wall surface heating appliances and heaters for thawing on roads and/or roofs or antifogging for mirrors. | 02-17-2011 |
20110045273 | COMPOSITE MATERIAL - An composite material is disclosed, which includes carbon fibrous structures which are capable of being included in a relatively large amount in the composite material, and which are capable of improving the physical properties, such as electric, mechanical, or thermal properties. | 02-24-2011 |
20110198543 | AQUEOUS DISPERSION OF FINE CARBON FIBERS, METHOD FOR PREPARING THE AQUEOUS DISPERSION, AND ARTICLES USING THEREOF - Upon dispersing fine carbon fibers into water, by using an anionic surfactant having a high electrostatic repulsion effect, an nonionic surfactant having a high stereoscopic repulsion effect, and an anionic surfactant having high electrostatic and stereoscopic repulsion effects, in combination, an aqueous dispersion of fine carbon fibers which shows a high dispersibility without causing significant cohesion of mutual fine carbon fibers, and maintains a mean particle diameter (d | 08-18-2011 |
20130309926 | THERMOSETTING RESIN-CONTAINING SOLUTION IN WHICH FINE CARBON FIBERS ARE DISPERSED AND THERMOSETTING RESIN FORMED ARTICLES THEREOF - In dispersing a fine carbon fiber in a thermosetting resin, the invention disperses and disentangles the fine carbon fiber being aggregates form in the thermosetting resin solution, maintains the stable dispersed state, lowers the viscosity of the thermosetting resin solution in which the fine carbon fiber is dispersed, and provides a thermosetting resin formed article containing the fine carbon fiber by curing the fine carbon fiber dispersion solution and a production method thereof. | 11-21-2013 |
20140121300 | CARBON FIBROUS CONJUNCT AND COMPOSITE MATERIAL USING THEREOF - The disclosed is a carbon fibrous conjunct in a granule form which comprises carbon fibrous structures and a binder by which the carbon fibrous structures are bound together,
| 05-01-2014 |