| 发明名称 |
Open cell structure foamed cellulose acetate filters |
| 摘要 |
This invention relates to a method of manufacturing foamed cellulose acetate and the product produced thereby. More specifically, the invention relates to a melt extrusion process for producing open cell structure foamed cellulose acetate having special use as a filtering element for an aerosol such as tobacco smoke.
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| 申请公布号 |
US4282890(A) |
申请公布日期 |
1981.08.11 |
| 申请号 |
US19790041577 |
申请日期 |
1979.05.23 |
| 申请人 |
CELANESE CORPORATION |
发明人 |
HOWELL, JR., CARL J.;TROTT, DAVID W.;RILEY, JESSE L. |
| 分类号 |
A24D3/02;A24D3/04;A24D3/10;C08J9/12;(IPC1-7):A24D3/04 |
主分类号 |
A24D3/02 |
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