Patent ID: 8853289

Claim:
An open-cell cross-linked foam composition comprising: a) a blend of ingredients comprising: i) from about 20 to about 50 weight percent of polyethylene having a density between about 0.91 and about 0.95 g/cc and a melt index between about 1 and about 4 g/10 minutes; ii) from about 50 to about 80 weight percent of ethylene-alkyl acrylate copolymer having a melt index between about 0.5 and about 4 g/10 minutes; iii) a chemical foaming agent that decomposes to form a gas when the blend is heated during processing into the foam composition; iv) silicone oil; v) an organic peroxide cross-linker; and vi) an elastomer; b) wherein the blend is processed to create a foam that has the following properties: i) open-cells created by crushing the foamed blend, wherein the average cell size is between 0.65 and 1.4 mm by ocular; ii) a density of from 1.5 to 2.0 pounds per cubic foot; and iii) an absorption weight capacity of SAE 30 oil of at least about 30 times the weight of the open-cell foam composition.