Patent ID: 8357727

Claim:
A durable, open-cell foam comprising the dehydration product of: an aqueous froth consisting essentially of a) 35 to 75 percent by weight of one or more copolymers or interpolymers of ethylene and/or 1-propene, with or without other monomers selected from C 4 to C 10 olefins, and which has an ethylene or 1-propene content from about 2-98 weight percent, (b) 35 to 75 percent by weight of water; (c) 1 to 6 percent by weight of a frothing surfactant; and (d) a gas; and wherein the cell size of the majority of cells at a first major surface of the foam ranges between about 20 and about 100 microns and the cell size of the majority of cells at the other major surface of the foam ranges between about 200 and about 1100 microns, and wherein said foam is further characterized by exhibiting a vertical wicking height, for a 0.9% aqueous saline solution after 5 minutes, of 8 cm or greater.