CARBON BLACK

CARBON BLACK

PROBLEM TO BE SOLVED: To provide a method for preparing a carbon black that is extremely excellent in jet-blackness. SOLUTION: The carbon black has the pore radius of 50 or less of the maximum frequency in the pore distribution histogram by 10 interval between 10-100 measured by a mercury porosimete...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: ASANO SHINTARO
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
PREPARATION OF CARBON BLACK
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for preparing a carbon black that is extremely excellent in jet-blackness. SOLUTION: The carbon black has the pore radius of 50 or less of the maximum frequency in the pore distribution histogram by 10 interval between 10-100 measured by a mercury porosimeter and the pore volume of 0.15 cm3/g or more belonging to the maximum frequency band. The carbon black is prepared by the method comprising a contact step of contacting with a gas containing nitric acid to produce a nitrogen oxide on the surface of the carbon black, thereby forming the acidic carbon black and an elimination step of eliminating the nitrogen oxide by activating the acidic carbon black. COPYRIGHT: (C)2005,JPO&NCIPI