| 发明名称 |
Polymers containing acetal, carboxy-acetal, ortho ester and carboxyortho ester linkages |
| 摘要 |
Biodegradable polymers that are useful for making biodegradable sustained release agent dispensers and which contain acetal, carboxy-acetal, ortho ester and/or carboxy-ortho ester linkages.
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| 申请公布号 |
US4957998(A) |
申请公布日期 |
1990.09.18 |
| 申请号 |
US19880234806 |
申请日期 |
1988.08.22 |
| 申请人 |
PHARMACEUTICAL DELIVERY SYSTEMS, INC. |
发明人 |
HELLER, JORGE;NG, STEVE Y. W.;PENHALE, DONALD W. H. |
| 分类号 |
A61K9/20;A61K9/22;C08G63/00;C08G63/672;C08G65/28 |
主分类号 |
A61K9/20 |
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