| 发明名称 |
ACIDIC POLYSACCHARIDE ESTERS AND PROCESS FOR THEIR PREPARATION |
| 摘要 |
Processes are provided herein for the preparation of acidic polysaccharide esters. One process comprises treating a quaternary ammonium salt of the polysaccharide with an esterifying agent, preferably in an aprotic solvent, and, if desired, salifying free carboxy groups in the partial esters obtained, or releasing salified groups in them.
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| 申请公布号 |
CA1341603(C) |
申请公布日期 |
2010.04.20 |
| 申请号 |
CA19860617150 |
申请日期 |
1986.07.08 |
| 申请人 |
FIDIA S.P.A. |
发明人 |
DELLA VALLE, FRANCESCO;ROMEO, AURELIO |
| 分类号 |
A61L17/00;C08B37/08;A61K8/00;A61K8/72;A61K8/73;A61K8/98;A61K9/00;A61K9/06;A61K31/715;A61K47/00;A61K47/36;A61L;A61L15/00;A61L15/28;A61L17/06;A61L27/00;A61P17/16;A61P29/00;A61Q19/00;C07C69/00;C07H9/00;C08B;C08B37/00;C08L5/08;D01F;D01F1/02;D01F13/00 |
主分类号 |
A61L17/00 |
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