发明名称 |
Extraction of poly( beta -hydroxybutyric acid) |
摘要 |
beta -Hydroxybutyric acid polymers are extracted from micro-organism cells by contact with a solvent, such as 1,2-dichloroethane which is a poor solvent for the polymer once it has been precipitated. The solution obtained by extraction is caused to gel and then solvent is expelled by subjecting the gel to a deformation process. Expelled solvent is recovered for extraction of polymer from a further quantity of cells.
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申请公布号 |
US4391766(A) |
申请公布日期 |
1983.07.05 |
申请号 |
US19820348325 |
申请日期 |
1982.02.12 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BARHAM, PETER J.;SELWOOD, ALAN |
分类号 |
C08F6/12;C08G63/06;C08G63/88;C12P7/62;(IPC1-7):D01D5/12 |
主分类号 |
C08F6/12 |
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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