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US 11,639,443 B2Granted
Carbon black molded body and a method for producing the same
AssigneeKansai Coke and Chemicals Co., Ltd.
InventorsHiroyuki Ito, Takaki Tsukazaki
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Abstract
The present invention provides a carbon black molded body having different pore structure from conventional carbon black. A carbon black molded body of the present invention includes a peak M of a pore volume being exist in a specified pore diameter in the specified Log differential pore volume distribution; a specified half band width of the peak M; a specified ratio of the half band width/an area-based median diameter; and a specified difference between a maximum value and a minimum value of a Log differential pore volume.
Claims4
A carbon black molded body comprising:
- a binder in an amount of less than 10% by mass;
- a peak M of a pore volume existing in a pore diameter within a range of from 3.6 nm to 500 nm in a Log differential pore volume distribution;
- a half band width of the peak M of 10 nm or less;
- a ratio of the half band width/an area-based median diameter of 0.7 or less;
- and
- a difference between a maximum value and a minimum value of a Log differential pore volume of 0.18 cm3/g or less in a pore diameter within a range of from 1,000 nm to 5,000 nm in the Log differential pore volume distribution when a pore volume exists in a pore diameter within a range of more than 500 nm;
- wherein the Log differential pore volume distribution having a pore diameter (nm) on a horizontal axis and a pore volume (cm3/g) on a vertical axis is obtained by measuring the carbon black molded body in a pore diameter within a range of from 3.6 nm to 5,000 nm of the carbon black molded body by mercury intrusion porosimetry.
4 more elements
Dependencies are inferred from the claim text.