Acid anhydrides as rate controlling agent for the erosion of polymers which latter polymers have beneficial substances dispersed throughout their matrix or where the polymer matrix surrounds the beneficial substance.
- 专利权人:
- MERCK & CO. INC.
- 发明人:
- HIGUCHI, TAKERU,HIMMELSTEIN, KENNETH J.
- 申请号：
- EP19830106031
- 公开号：
- EP0100424(A2)
- 申请日:
- 1983.06.21
- 申请国别(地区):
- 欧洲专利局
- 年份:
- 1984
- 代理人:
- 摘要：
- 来源网站：
- 中国工程科技知识中心
