发明名称 |
FILTER ELEMENT COMPRISING SMOKE-ALTERING MATERIAL |
摘要 |
<p>The invention provides a filter element of a smoking article having a longitudinal axis and adapted for filtration of mainstream smoke generated by the smoking article, the filter element including a first region extending along the longitudinal axis of the filter element and exhibiting a first pressure drop and a second region extending along the longitudinal axis of the filter element and exhibiting a second pressure drop lower than said first pressure drop, wherein the first and second regions are arranged in a side-by-side configuration such that both regions are visible in a cross-section of the filter element perpendicular to the longitudinal axis, and wherein mainstream smoke can move from the second region into the first region, and further comprising a smoke-altering material, such as an oxidation catalyst, positioned in the first region.</p> |
申请公布号 |
EP2498630(B1) |
申请公布日期 |
2013.09.18 |
申请号 |
EP20100782748 |
申请日期 |
2010.11.10 |
申请人 |
R. J. REYNOLDS TOBACCO COMPANY |
发明人 |
NORMAN, ALAN, BENSON;INGEBRETHSEN, BRADLEY, JAMES |
分类号 |
A24D3/04 |
主分类号 |
A24D3/04 |
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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