| abstract |
SUMMARY OF THE INVENTION The present invention relates to a technique for pulverizing a polymer foam, a technique for making a polymer foam comprising the pulverized foam, and the resulting pulverized foam powder and polymer. It relates to various things up to foams. The above procedure can be used on foams containing in-situ contaminants, for example, polyolefins; paper; foam skins; and other foams containing in-contaminants such as wood, metal, leather and the like. The pulverized foam powder does not contain any contaminants, but is preferably sieved or screened to obtain a foam powder having a particle size of about 2 mm or less. |