| 发明名称 |
Microporous materials in cigarette filter construction |
| 摘要 |
Flavor-carrying microporous polymer material is incorporated with a cigarette filter to release flavor into the smoke-stream during smoking of the cigarette.
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| 申请公布号 |
US4729391(A) |
申请公布日期 |
1988.03.08 |
| 申请号 |
US19850798227 |
申请日期 |
1985.11.14 |
| 申请人 |
R. J. REYNOLDS TOBACCO COMPANY |
发明人 |
WOODS, DONNA K.;ROBERTS, DONALD L. |
| 分类号 |
A24D1/04;A24D3/04;A24D3/06;A24D3/08;A24D3/10;(IPC1-7):A24D3/08;A24D3/14 |
主分类号 |
A24D1/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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