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

Graft copolymers of vinyl acetate on polyethylene oxide as
self-supporting capsules
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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