| abstract |
A dressing comprising: an open cell polyurethane foam, wherein the polyurethane foam has a density of about 320 to 640 kg.m-3 (20 to about 40 pounds per cubic foot), cells having an average diameter of 'about 20 to about 60 microns, and cell openings having an average diameter of about 1 to about 25 microns, wherein the ratio of the average diameter of a cell to the average diameter of a cell opening is about 3 to around 10; and a pad affixed to at least a part of the foam, and process for preparing the polyurethane foam and polyurethane foam obtained. |