发明名称 |
Carbonaceous material having modified pore structure |
摘要 |
The invention provides a method of increasing the mesopore volume of a porous activated carbon, comprising coating a porous activated carbon with a metal oxide or metal oxide precursor to form a treated activated carbon; and calcining the treated activated carbon, in a dry atmosphere, for a time and at a temperature sufficient to increase the mesopore volume of the treated activated carbon. The invention also provides an activated carbon having a total mesopore volume of at least about 0.10 cc/g and less than about 0.25 cc/g, and a percentage of mesopore volume per total pore volume of at least about 15% and less than about 35%. Activated carbon modified according to the invention, cigarette filters incorporating such activated carbon, and smoking articles made with such filters are included in the invention. |
申请公布号 |
US8119555(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US20080274780 |
申请日期 |
2008.11.20 |
申请人 |
BANERJEE CHANDRA KUMAR;SEARS STEPHEN BENSON;JACKSON THADDEUS JUDE;R. J. REYNOLDS TOBACCO COMPANY |
发明人 |
BANERJEE CHANDRA KUMAR;SEARS STEPHEN BENSON;JACKSON THADDEUS JUDE |
分类号 |
B01J21/18;A24B1/00;A24B15/00;A24B15/18;A24D1/00;A24D1/04;A24D3/00;A24F1/20;A24F13/06;B01J23/00;B01J23/02;B01J23/06;B01J23/40;B01J23/74;B01J27/20;C01B31/00;C01B31/02;C09C1/56 |
主分类号 |
B01J21/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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