发明名称 |
High surface area micro-porous fibers from polymer solutions |
摘要 |
Fibers are produced from an acetone solution of cellulose acetate by pulling or extruding such material through a spinneret in a dry spinning process. A vacuum is applied to the thus formed fibers after a certain degree of drying. A dried outer skin is formed, and the vacuum causes the solvent inside the skin to explode or pop and exit the fiber along micro-porous paths thereby producing high surface area fibers with micro-porous cavities and internal void volume. Such micro-cavities are particularly useful for retaining solid and/or liquid reagents in a cigarette filter for selective filtration of various smoke components. |
申请公布号 |
AU2002256223(B2) |
申请公布日期 |
2006.05.18 |
申请号 |
AU20020256223 |
申请日期 |
2002.04.16 |
申请人 |
PHILIP MORRIS PRODUCTS, INC. |
发明人 |
LIXIN XUE;QIONG GAO;KENT B. KOLLER |
分类号 |
A24B15/00;A24B15/28;A24D3/10;B01D47/00;C01B31/20;D01D5/247;D01F2/00;D01F2/24;D01F2/28;D01F2/30 |
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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