FLUOROPOLYMER FOAMS, PROCESS TO MAKE THEM AND APPLICATIONS THEREOF

摘要

Closed cell fluoropolymer foams are prepared by subjecting a fluoropolymer resin to inert gases at an elevated pressure and at a temperature above the softening point of the resin and reducing the pressure while the temperature is maintained above the softening point of the resin, resulting in expansion of the resin. The resin is cross-linked prior to expansion to result in a low density, high quality product.