A cushioning material is disclosed having at least two layers of unwoven, temperature-resistant staple fibers and layers of reinforcing scrim between the unwoven layers, wherein the entire structure is needlepunched for integrity and one face is embossed with a pattern to increase resiliency....http://www.google.fr/patents/US5691036?utm_source=gb-gplus-shareBrevet US5691036 - High pressure high temperature cushioning material
High pressure high temperature cushioning material
