CARBON BLACK, BLACK COMPOSITION AND PRODUCTION METHOD FOR CARBON BLACK

PROBLEM TO BE SOLVED: To provide carbon black which exhibits good dispersibility and fluidity while having a total volatile oxygen amount by the same as that of a conventional level, a black composition containing the carbon black and a production method for the carbon black. SOLUTION: The carbon bl...

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Hauptverfasser:	KAKIUCHI TAKAYOSHI, ISHIZU MAKOTO, TAKAMURA EIHACHI, KANAMARU SHINICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide carbon black which exhibits good dispersibility and fluidity while having a total volatile oxygen amount by the same as that of a conventional level, a black composition containing the carbon black and a production method for the carbon black. SOLUTION: The carbon black has a powder resistance value (VR)[Ω cm] which is ≥2 and satisfies the formula: VR ≥6.7562F-1.0453 wherein F=(total oxygen amount [mg/g])×(nitrogen adsorption specific surface area [m2/g])-0.4×(DBP absorption [ml/100g])-0.3. The black composition contains the carbon black. The carbon black is obtained by pulverizing powdered carbon black so as to bring it into aggregated particles having an average particle diameter of ≤500 μm, followed by surface-treating the resultant particles under specific conditions. COPYRIGHT: (C)2004,JPO