| 摘要 |
A free-standing, porous foam product comprising an integral network of PVP molecules hydrogen-bonded to H2O2 molecules, optionally including a water-soluble gelling agent; e.g. hydroxyethyl cellulose; in an amount up to 60% by weight of the product, its PVP content being about 25-90% by weight of the product, and the H2O2 content being about 5-24% by weight. In the absence of a gelling agent, the product has a bulk density of about 0.3 to about 0.5 g/cc and a porosity of about 60-70%. When a gelling agent is present in the product, its bulk density and porosity of the product is substantially reduced and, accordingly, it has a more foam-like structure and appearance.
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