发明名称 |
Method and apparatus for forming a cellulose article including solvent recovery means |
摘要 |
A method and apparatus is disclosed for forming a cellulose film suitable for direct food contact by precipitation from a solution of cellulose water and a tertiary amine oxide cellulose solvent. After precipitation of a cellulose gel from the solution, the gel is washed at ever increasing temperatures and then dried to provide a cellulose film having a solvent level to not more than 40 ppm. Portions of the wash water is collected and treated to recover the solvent for reuse.
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申请公布号 |
US6096258(A) |
申请公布日期 |
2000.08.01 |
申请号 |
US19980009505 |
申请日期 |
1998.01.20 |
申请人 |
VISKASE CORPORATION |
发明人 |
DUCHARME, JR., PAUL EDMUND;KAJIWARA, EDWARD MAKOTO;PORTNOY, NORMAN ABBYE |
分类号 |
C08J5/18;A22C13/00;B29C67/06;B29K1/00;B29L7/00;C08J11/02;(IPC1-7):B29C47/00 |
主分类号 |
C08J5/18 |
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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