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Class Information
Number: 423/449.2
Name: Chemistry of inorganic compounds > Carbon or compound thereof > Elemental carbon > Carbon black (e.g., lampblack) > Treating carbon black
Description: Processes wherein carbon black is treated to change its characteristics.


Sub-classes under this class:

Class Number Class Name Patents
423/449.5 Gaseous oxygen containing compound 55
423/449.4 Halogen or compound thereof 16
423/449.3 Treating with acid, or gas which forms acid in water 20


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7541308 Fuel cells and other products containing modified carbon products Jun. 2, 2009
7328738 Heat exchanger Feb. 12, 2008
7301061 Method of processing industrial and municipal, organic, rubber-containing wastes Nov. 27, 2007
7294185 Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Nov. 13, 2007
6962952 Process for production of modified carbon black for rubber reinforcement and process of production of rubber composition containing modified carbon black Nov. 8, 2005
6803026 Compacted carbon black pellets Oct. 12, 2004
6780389 Process for the production of modified carbon black Aug. 24, 2004
6780388 Electrically conducting fine carbon composite powder, catalyst for polymer electrolyte fuel battery and fuel battery Aug. 24, 2004
6770367 Carbon black coated with an aluminous layer and process for obtaining same Aug. 3, 2004
6740151 Reaction of carbon black with diazonium salts, resultant carbon black products and their uses May. 25, 2004
6716372 Lithium-containing materials Apr. 6, 2004
6652641 Process for production of modified carbon black for rubber reinforcement and rubber composition containing modified carbon black Nov. 25, 2003
6551393 Methods of making a particle having an attached stable free radical Apr. 22, 2003
6533859 Surface treated carbon black having improved dispersability in rubber and compositions of rubber therefrom having improved processability, rheological and dynamic mechanical properties Mar. 18, 2003
6525105 METHODS OF SEPARATING VULCANIZED OR UNVULCANIZED RUBBER AND SEPARATING RUBBER COMPOSITE, RUBBER COMPOSITION CONTAINING RECOVERED RUBBER OR RECOVERED CARBON BLACK, AND PROCESS FOR PRODUCING CAR Feb. 25, 2003
6500401 Carbon foams and methods of making the same Dec. 31, 2002
6494946 Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Dec. 17, 2002
6428722 Gas diffusion electrode material, process for producing the same, and process for producing gas diffusion electrode Aug. 6, 2002
6402825 Surface modified carbon black Jun. 11, 2002
6368239 Methods of making a particle having an attached stable free radical Apr. 9, 2002
6248808 Process for preparing surface-treated carbon black and rubber composition Jun. 19, 2001
6238443 Process of agglomerating high carbon dusts and a substantially non-dusting high carbon composition therefrom May. 29, 2001
6197274 Silica coated carbon blacks Mar. 6, 2001
5907009 Surface-treating agent for carbon black May. 25, 1999
5871706 Carbon black compositions and improved polymers compositions Feb. 16, 1999
5859120 Carbon black and processes for manufacturing Jan. 12, 1999
5811475 Method for producing carbonaceous material Sep. 22, 1998
5807494 Gel compositions comprising silica and functionalized carbon products Sep. 15, 1998
5679728 Surface-treated carbon black and rubber composition containing same Oct. 21, 1997
5580537 Process for the compression of powdered substances Dec. 3, 1996
5575845 Carbon black products for coloring mineral binders Nov. 19, 1996
5571847 Compatibilized carbon black and a process and a method for using Nov. 5, 1996
5500201 Method of treating carbon black and carbon black so treated Mar. 19, 1996
5397807 Compatibilized carbon black and a process and a method for using Mar. 14, 1995
5200164 Easily dispersible carbon blacks Apr. 6, 1993
5159009 Carbon blacks modified with organosilicon compounds, method of their production and their use in rubber mixtures Oct. 27, 1992
4927718 Novel air electrode for metal-air battery with new carbon material and method of making same May. 22, 1990
4879335 Black liquid colorant and polyester fibers dope-dyed therewith Nov. 7, 1989
4751069 Automotive high color carbon Jun. 14, 1988
4693879 Ultrasonic vibration sieving apparatus and process for purifying carbon black by using the apparatus Sep. 15, 1987
4647444 Method for the treatment of fluidized carbon black utilizing level sensing means Mar. 3, 1987
4631304 Novel carbon black and process for preparing same Dec. 23, 1986
4601887 Apparatus for improving the degree of graphitization of carbon black, and its use Jul. 22, 1986
4569834 Carbon black pellets having enhanced dispersion properties Feb. 11, 1986
4543305 Method of pretreating carbon black powder to improve cathode performance and lithium sulfuryl chloride cell including the pretreated carbon black powder Sep. 24, 1985
4530769 Process for separating carbon black from an aqueous suspension Jul. 23, 1985
4526881 Method of pretreating carbon black powder to improve cathode performance and lithium sulfuryl chloride cell including the pretreated carbon black powder Jul. 2, 1985
4526731 Particulating materials Jul. 2, 1985
4518434 Carbon black and process for preparing same May. 21, 1985
4510078 Oiled, electrically conductive carbon black Apr. 9, 1985

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