发明名称 |
Rapidly degradable filters via electron ionization |
摘要 |
A method of forming a filter for a smoking article which includes exposing cellulose acetate fibers to an electron beam process, wherein electron beam process deacetylates the cellulose acetate fibers to render the cellulose acetate fibers water-permeable; and forming a cellulose acetate rod from a tow of the cellulose acetate fibers. Filter plugs of the cellulose acetate fibers are water-permeable and allow discarded filtered smoking articles to rapidly degrade and expose the components to the environment.
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申请公布号 |
US2008127988(A1) |
申请公布日期 |
2008.06.05 |
申请号 |
US20070882278 |
申请日期 |
2007.07.31 |
申请人 |
PHILIP MORRIS USA INC. |
发明人 |
GRUBBS HARVEY J.;FREELIN SUSAN A. |
分类号 |
A24D3/02;A24D3/06;B31C99/00 |
主分类号 |
A24D3/02 |
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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