发明名称 |
Gels formed by the interaction of polyvinylpyrrolidone with chitosan derivatives. |
摘要 |
A composition includes a stable gel of neutralized chitosan and poly(N-vinyl lactam), the poly(N-vinyl lactam) having a K value of at least about 60 and mole equivalents of acid groups above about 1.4 from ring-opened pyrrolidones. The composition may also include a substrate and various additives incorporated with the gel. A method for making the gel includes mixing the chitosan and poly(N-vinyl lactam) in aqueous solution and curing. Products include wound packings, wound dressings, burn dressings, drug delivery dressings, cosmetic face masks and cosmetic wrap dressings. |
申请公布号 |
EP0663212(A3) |
申请公布日期 |
1995.09.06 |
申请号 |
EP19950200068 |
申请日期 |
1995.01.12 |
申请人 |
HYDROMER, INC. |
发明人 |
LORENZ, DONALD H.;LEE, CONNIE C. |
分类号 |
A61F13/00;A61K8/00;A61K8/02;A61K8/34;A61K8/42;A61K8/46;A61K8/49;A61K8/65;A61K8/72;A61K8/73;A61K8/81;A61K9/00;A61K47/32;A61K47/36;A61L15/22;A61L15/58;A61L15/64;A61Q19/00;C08L39/04 |
主分类号 |
A61F13/00 |
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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