发明名称 |
Aqueous coating dispersions |
摘要 |
Aqueous dispersions of a water-swellable but water-insoluble polymer formed between a quaternary ammonium monomer and a nonionic monomer; methods for making such dispersions by dispersing said copolymers, in the form of a powder, in water; methods for coating pharmaceutical cores, powders, or granules with such dispersions; and coated pharmaceutical products made by such methods.
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申请公布号 |
US4737357(A) |
申请公布日期 |
1988.04.12 |
申请号 |
US19870056291 |
申请日期 |
1987.05.29 |
申请人 |
ROEHM GMBH |
发明人 |
LEHMANN, KLAUS;DREHER, DIETER;WEISBROD, WOLFGANG |
分类号 |
A61K47/32;A61K9/16;A61K9/20;A61K9/28;A61K9/32;A61K9/50;A61K9/70;A61K47/00;C08J3/05;(IPC1-7):A61K9/32 |
主分类号 |
A61K47/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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