发明名称 |
High efficiency cigarette filters having shaped micro cavity 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 |
ZA200208403(B) |
申请公布日期 |
2003.08.11 |
申请号 |
ZA20020008403 |
申请日期 |
2002.10.17 |
申请人 |
PHILIP MORRIS PRODUCTS INC. |
发明人 |
LIXIN LUKE XUE;KENT BRIAN KOLLER;QIONG GAO |
分类号 |
A24D3/16;B01D39/02;B01D39/04 |
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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