发明名称 |
High efficiency cigarette filters having shaped microcavity fibers impregnated with adsorbent or absorbent materials |
摘要 |
This invention is a highly efficient filter containing fibers that contain small particle size adsorbents/absorbents such as carbon and/or silica to selectively reduce targeted components in mainstream cigarette smoke. The invention relates to a novel class of highly efficient cigarette smoke filters made from much smaller solid fine particles (preferably 1-50 micrometers in diameter) impregnated in shaped fibers that possess open or semi-opened micro-cavity. The invention further relates to a cigarette having a plug/space/plug or plug/space configuration and having the impregnated filters resided in the space in bonded non-woven or freely unbounded manner to allow controlled TPM delivery. |
申请公布号 |
US2002020420(A1) |
申请公布日期 |
2002.02.21 |
申请号 |
US20010839669 |
申请日期 |
2001.04.20 |
申请人 |
XUE LIXIN LUKE;KOLLER KENT B.;GAO QIONG |
发明人 |
XUE LIXIN LUKE;KOLLER KENT B.;GAO QIONG |
分类号 |
A24D3/16;B01D39/02;B01D39/04;(IPC1-7):A24F1/00;A24B15/10;A24B15/42;A24F7/04 |
主分类号 |
A24D3/16 |
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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