发明名称 |
Filter |
摘要 |
A filter for a cigarette comprises a porous filter rod (3) a material sheet (2) wrapped around the filter rod and a cellulose acetate thread (4) formed from substantially uncrimped cellulose acetate filaments. The cellulose acetate thread is positioned within the filter rod and extends along the central axis of the filter rod.
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申请公布号 |
US2010294288(A1) |
申请公布日期 |
2010.11.25 |
申请号 |
US20080669463 |
申请日期 |
2008.06.27 |
申请人 |
SAMPSON JOHN ROGER;LEWIS DAVID |
发明人 |
SAMPSON JOHN ROGER;LEWIS DAVID |
分类号 |
A24B15/00;A24D3/02;A24D3/04 |
主分类号 |
A24B15/00 |
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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