| 发明名称 |
Process for solubilizing polyanionic bacterial polysaccharides in aprotic solvents. |
| 摘要 |
<p>A process for rendering a bacterial polysaccharide soluble in aprotic solvents by exchanging the calcium counterion of a polysaccharide calcium salt for tetra-n-alkylammonium ion by precipitation.</p> |
| 申请公布号 |
EP0398615(A2) |
申请公布日期 |
1990.11.22 |
| 申请号 |
EP19900305180 |
申请日期 |
1990.05.14 |
| 申请人 |
MERCK & CO. INC. |
发明人 |
CALABRIA, RALPH;HARTNER, FREDERICK W.;SISKO, JOHN T. |
| 分类号 |
C08B37/00;C12P19/04 |
主分类号 |
C08B37/00 |
| 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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