Matches 401 - 450 out of 638 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >
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4631181 Process for producing mesophase pitch  
A mesophase pitch suitable for carbon products, particularly for carbon fibers, which has a mesophase content of at least 40%, preferably at least 60%, and a larger mesophase domain, is produced by...
4631304 Novel carbon black and process for preparing same  
Carbon black which has been treated with organic peroxides imparts high scorch resistance to rubber into which it has been compounded.
4627944 Method for producing a carbon sheet and a fuel cell separator  
A carbon sheet which is suitable for use as a fuel cell separator is produced by the steps of: forming a shaped body in the form of a sheet comprising cellulose fibers and a thermosetting resin...
4609972 Method for the manufacture of porous vitreous carbon  
Porous vitreous carbon with good electrical and mechanical properties as well as large double-layer capacitance can be produced by hardening and pyrolysis of thermosetting carbonizable resins...
4592883 Process for treating molded, porous carbon article  
When a molded, porous carbon article for use as a sliding material for bearing, etc. is maintained in a stream or atmosphere of a fluorine gas or a fluorine gas diluted with an inert gas, the...
4582632 Non-permeable carbonaceous formed bodies and method for producing same  
Non-permeable carbonized formed bodies consisting of carbonaceous material containing 5-50 wt % of graphite and the balance of glassy carbon formed by bake-carbonization of a thermosetting resin,...
4569835 Method of producing carbonaceous blocks in a tunnel type furnace  
This invention relates to a method of producing carbonaceous blocks, and more particularly to a method of manufacturing anodes for the electrolytic reduction of aluminum, consisting of coating said...
4568533 Method of providing a flowable carbon material  
The invention relates to a method of providing a flowable carbon material, in particular for filling hollow spaces for the purpose of heat-insulation. A method of that type is to be laid out in a...
4565649 Graphite intercalation compounds  
An electrically conductive composition is disclosed which comprises a graphite intercalation compound of graphite, a Bronsted acid such as hydrogen fluoride, chloride, or bromide, nitric, nitrous,...
4548980 Tire tread rubber composition  
A rubber composition, comprising from 20 to 150 parts by weight of carbon black incorporated in 100 parts by weight of rubber, said carbon black being a furnace carbon black having (1) a specific...
4545859 Method for producing needle coke  
A method is provided for producing needle coke comprising the steps of heating green needle coke at temperatures between about 935° F. and about 1,100° F. for between about 10 minutes and about...
4534949 Process for the manufacture of molded carbon bodies  
A process for the manufacture of molded carbon bodies directly from high-boiling aromatic hydrocarbon fractions derived from coal or mineral oil, without additional binding agents and without using...
4534951 Manufacture of high quality graphite electrodes using calcined anthracite coal as raw material  
Calcined anthracite coal particles are substituted for petroleum coke in the manufacture of high quality graphite electrodes.
4525337 Process for the manufacture of compact composite carbonaceous materials by densification of porous carbonaceous substrates  
A method for the high temperature, high pressure impregnation of thick woven carbon substrates with pitches to form carbon impregnated carbon bodies. The use of pitch with high (about 30%) levels...
4519894 Treatment of carbonaceous shales or sands to recover oil and pure carbon as products  
A carbon-containing solid (such as oil shale or tar sand) is treated with air in a six-stage vertical shaft to make producer gas, oil and a pure carbon as products. The top and bottom stages of the...
4514371 Process and device for the accelerated densification of a porous carbonaceous substrate by decomposition of a hydrocarbon substance  
The present invention relates to a process and device for the accelerated densification of a porous carbonaceous substrate, of the type consisting in decomposing a hydrocarbon substance in the...
4506028 Process for preparing a fuel cell electrode substrate comprising carbon fibers  
An electrode substrate for a fuel cell having a high porosity, a good mechanical strength and electroconductivity and a sharp distribution of pore radii is prepared by a process comprising mixing...
4504519 Diamond-like film and process for producing same  
An amorphous, carbonaceous, diamond-like film and a process for producing the same is disclosed. The film has an extremely low hydrogen content and an extremely low stress, is resistant to both...
4500672 Rubber composition comprising furnace carbon black  
According to this invention, a rubber composition is provided, which comprises 100 parts by weight of a rubber component and 25 to 250 parts by weight of carbon black, which carbon black falls...
4495044 Diamondlike flakes  
A carbon coating (36) is vacuum arc deposited on a smooth surface of a target (10) which is simultaneously ion beam sputtered. The bombarding ions have sufficient energy to create diamond bonds....
4483840 Synthetic carbonaceous granules having high mechanical characteristics  
The invention relates to synthetic carbonaceous granules having high mechanical characteristics and, more particularly, the granules produced from anthracite fines. The invention also relates to a...
4461719 Lamellar carbon-nitrosyl or nitronium salt compositions  
Electrically conductive carbon compositions are disclosed which are formed from carbon having a graphite-like structure and a nitrosyl or nitronium salt or salts. The nitrosyl or nitronium salt...
4459273 Carbon black obtained from aqueous suspensions  
This invention relates to carbon black obtained from an aqueous suspension. A practically water-free carbon black is obtained from aqueous suspensions by mixing the suspension with liquid...
4439349 Mesoporous carbons  
The disclosed invention relates to mesoporous carbon which is useful as a catalyst or adsorbent for large organic molecules. Said carbon composition comprises a regular assembly of carbon particles...
4438086 Method for preparation of graphite fluoride by contact reaction between carbon and fluorine gas  
A method and apparatus for preparation of a graphite fluoride such as (CF) n or (C 2 F) n by heterogeneous contact reaction between a carbon material such as graphite or petroleum coke and...
4437962 Diamondlike flake composites  
A carbon coating (36) is vacuum arc deposited on a smooth surface of a target (10) which is simultaneously ion beam sputtered. The bombarding ions have sufficient energy to create diamond bonds....
4434149 Acid melt treatment to activate carbon for use as reductant  
A novel method of activating carbon is provided comprising contacting the carbon with low temperature aluminum chloride acid melts comprising at least 50 mole percent aluminum chloride and less...
4426368 Method of producing glass carbon  
Glass or vitrified carbon is produced by thermal degradation of polyphenylene sulfide or a substituted compound thereof by additions of an oxide of a sulfide-forming metal, such as Fe 2 O 3 ,...
4425256 Conversion of cellulose into activated charcoal  
A process for converting wood stock or other cellulosic material into activated charcoal, use being made for this purpose of liquid anhydrous hydrogen chloride which converts the stock into a...
4420415 Process for the production of carbon molecular sieves  
Carbon molecular sieves having excellent oxygen adsorption properties may be obtained from a vinylidene chloride copolymer. The copolymer is carbonized for the removal of its chlorine components...
4414192 Method of producing a highly reactive pitch fraction and its usage  
A method of producing a highly reactive pitch fraction is disclosed. Coal-tar pitch is extracted with hot chloroform and the pitch solution treated with solid iodine. The solid reaction products...
4412675 Carbon spring and process for preparing the same  
A carbon spring composed substantially of carbonaceous carbon or graphite carbon is prepared by shaping an organic linear material to a coiled spring and thereafter heating it to carbonize.
4406870 Method for the separation of carbon isotopes by chemical exchange method  
A method for the separation of the isotopes of carbon comprising contacting an aqueous solution containing an acid-dissociated type chemical species of a carbon-containing acid and a...
4398582 Pneumatic tire  
A pneumatic tire having remarkably low rolling resistance and high wet skid resistance without deteriorating the wear resistance is obtained by using in at least the ground-contact area of its...
4399052 Activated carbonaceous honeycomb body and production method thereof  
An activated carbonaceous honeycomb body is prepared by extruding a tempered mass containing a thermosetting resin such as phenol resin, drying and solidifying the green honeycomb body, preheating...
4399083 Method and apparatus for making a composite carbon material  
A method of and an apparatus for making a composite carbon material from a precompact of granular carbons of different kinds or origins. A localized region of the carbon precompact is subjected to...
4395814 Acoustic vibrating element of graphite and method of manufacturing same  
An acoustic vibrating element, such a domed speaker diaphragm A or a phonographic pickup cantilever B, is formed by vapor deposition on an easily separable mold member 5 of tantalum or tantalum...
4379133 Process for anisotropic carbon production  
An improved process for treating coal tar pitch to form anisotropic carbon comprising treating coal tar pitch with picric acid, recovering the resulting picrates, decomposing the picrates and...
4374113 Production of high surface area carbon blacks  
This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks have higher surface areas...
4371454 Process for preparing spherical carbon material and spherical activated carbon  
Spherical carbon material or a spherical activated carbon is prepared from an admixture of pitch, amorphous carbon and a viscosity-controlling agent by the process comprising the step of heating...
4369171 Production of pitch and coke from raw petroleum coke  
Raw petroleum coke is treated with a solvent to extract the soluble matter. The extracted matter is useful as coker feedstock, fuel, pitch binder, pitch precursor, impregnant and carbon black...
4366191 Method of increasing the strength of carbon and graphite members  
Increasing the strength and improving other properties of porous carbon or graphite bodies by immersing the porous body in a mixture containing 35-70% hardenable resin and 30 to 65% volatile...
4360485 Method for making improved separator plates for electrochemical cells  
A thin electrochemical cell separator plate with greatly improved properties is made by molding and then graphitizing a mixture of preferably 50 percent high purity graphite powder and 50 percent...
4353782 Method of solid-state pyrolysis of organic polymeric substances  
The yield of good-quality bodies consisting of vitreous carbon is increased to substantially 100% when the pyrolysis is performed in a reaction vessel in which a collecting container or a...
4352787 Ultra-hard particles of carbon produced by reacting metal carbide with non-metal halide in hot melt system  
The production of ultra-hard particles composed substantially of carbon as the dominant element is taught. The ultra-hard particle comprises a covalently bonded lattice structure produced by...
4351815 Battery carbon black  
Carbon black products useful as an ingredient in dry cell battery compositions are disclosed which have a wide aggregate size distribution with a range of measured aggregate volume from about 5×10...
4350672 Binderless carbon or graphite articles  
A process for producing binderless, single phase bulk carbon or graphite articles having a fibrillar microstructure comprising the steps of assembling a plurality of polymer fibers into a...
4318710 Conversion of cellulose into charcoal  
A process for converting wood stock or other cellulosic material into charcoal, use being made for this purpose of liquid anhydrous hydrogen chloride at ambient temperatures.
4318824 Manufacture of porous carbon  
A porous carbon is prepared by first carbonizing a solid fraction (obtained from pitch and/or coal by solvent extraction and preferably being one soluble in quinoline and insoluble in methanol,...
4311682 Process for preparing a graphite product  
A process for preparing a carbon product, which comprises: (a) mixing hydrocarbon material derived from coal with a hydrocarbon solvent having a boiling point or a distillation temperature for 95...
Matches 401 - 450 out of 638 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >