发明授权
US3984494A Graft copolymers of vinyl acetate on polyethylene oxide as
self-supporting capsules
失效
乙酸乙烯酯在聚环氧乙烷上的接枝共聚物作为自支撑胶囊
- 专利标题: Graft copolymers of vinyl acetate on polyethylene oxide as self-supporting capsules
- 专利标题(中): 乙酸乙烯酯在聚环氧乙烷上的接枝共聚物作为自支撑胶囊
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申请号: US534279申请日: 1974-12-19
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公开(公告)号: US3984494A公开(公告)日: 1976-10-05
- 发明人: Albrecht Harreus , Wolfgang Zimmermann
- 申请人: Albrecht Harreus , Wolfgang Zimmermann
- 申请人地址: DT Frankfurt am Main
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DT Frankfurt am Main
- 优先权: DT2363853 19731221
- 主分类号: C08F8/00
- IPC分类号: C08F8/00 ; A61K9/00 ; A61K9/48 ; C08F8/12 ; C08F283/00 ; C08F283/06 ; C08L31/04 ; B01J13/00
摘要:
An encapsulating material for drugs consisting of a modified polyvinyl alcohol which is a partially hydrolized graft copolymer of vinyl acetate on polyethylene oxide.
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