发明申请
- 专利标题: METHOD OF MAKING MODIFIED ACTIVATED CARBON
- 专利标题(中): 制备改性活性炭的方法
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申请号: US15196505申请日: 2016-06-29
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公开(公告)号: US20160302479A1公开(公告)日: 2016-10-20
- 发明人: Zhaohua Luan , Diane L. Gee , Georgios Karles , Ila Skinner , Jose Nepomuceno
- 申请人: Philip Morris USA Inc.
- 主分类号: A24D3/16
- IPC分类号: A24D3/16 ; A24D3/06 ; B01J20/28 ; C01B31/08 ; B01J20/20
摘要:
An activated carbon substrate which is pre-treated to make an exposed surface of the activated carbon substrate substantially hydrophilic, coated with a carbon precursor to form a coated activated carbon, and then the coated activated carbon substrate is heated to carbonize the carbon precursor to from the modified activated carbon. The modified activated carbon comprises a uniform porous carbon membrane formed on an exposed surface of the activated carbon substrate. The carbon membrane can mediate the absorption and/or adsorption kinetics of the activated carbon substrate. The modified activated carbon, which can be incorporated into one or more components of a cigarette, can selectively remove gaseous constituents from mainstream smoke during smoking.