Gels formed by the interaction of polyvinylpyrrolidone with...

Details Gels formed by the interaction of polyvinylpyrrolidone with... Gels formed by the interaction of polyvinylpyrrolidone with...

A - Human Necessities

61

L

A61L 15/28 (2006.01) A61K 8/02 (2006.01) A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61K 47/32 (2006.01) A61K 47/36 (2006.01) A61L 15/22 (2006.01) A61Q 19/00 (2006.01) C08L 39/04 (2006.01)

Patent

CA 2138351

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.

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