Abstract: A high temperature non-asbestos compressed sheet formed without rubber binders, additives, curatives and fillers. The yarns that comprise the invented woven compressed sheet have an elongated metallic core and a vermiculated graphite jacket substantially encapsulating the jacket. In one preferred embodiment, the core is either a metallic foil or a flattened metallic wire both having a generally rectangular cross-section. In another preferred embodiment, the core is a metallic wire shrouded by carbon fibers. The yarns also include an adhesive layer that secures the jacket to the core. Also disclosed is a method for making the invented sheet.

Abstract: An improved method and apparatus for the production of a strand of reinforced graphite-foil yarn which is the basis of the braided graphite-foil yarns. To produce the reinforced graphite-foil strands what is needed is apparatus for a tapered, cone shaped circular die having a specific geometry suitable for curling the fiber and adhesive coated surface inward upon itself, so that the curled ribbon will adhere to itself when compressed into the final protrusion die forming a finished fiber reinforced composite strand of expanded graphite flake having suitable tensile strength, flexibility, and toughness to permit braiding, weaving and other processing making it commercially useful wherever a dry, lubricous, strong, flexible material is desirable.