TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The compressible mixture further comprises isotropy-promoting agent selected from non-expandable graphite particles, spheroidal graphite particles, meso-carbon micro-beads, carbon blacks, graphite or carbon fibers, graphite or carbon nano-fibers, nano-tubes, glass fibers, ceramic fibers, polymer fibers, metal fibers, metal particles, polymer particles, organic particles and/or inorganic particles. The non-expandable graphite or carbon component is selected from non-expandable natural or synthetic graphite particles, spheroidal graphite particles, meso-carbon micro-beads, carbon blacks, graphite or carbon fibers, graphite or carbon nano-fibers and/or nano-tubes.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The step (a) involves continuously supplying compressible mixture of expanded or exfoliated graphite flakes, optionally non-expandable graphite or carbon powder component (3-60 wt.%), and a binder or matrix material (10-60 wt.%), and exposing the powder mixture to a temperature sufficient for exfoliating the expandable graphite to obtain the compressible mixture. The step (a) involves continuously providing a supply of exfoliated graphite, and impregnating the exfoliated graphite with a binder or matrix material to obtain the compressible mixture. The step (a) involves continuously supplying a blend of expanded or exfoliated graphite flakes and optionally non-expandable graphite or carbon particles and impregnating the blend with a binder or matrix material. The step of impregnating involves impregnating the blend with a first component of a two-component or multiple-component thermosetting or polymerizing resin and then impregnating the blend with a second component of the resin. The step of impregnating comprises impregnating the blend with a mixture of a volatile diluent and a first component of a two-component or multiple-component thermosetting or polymerizing resin, removing the volatile diluent, and then impregnating the blend with a second component of the resin. The resin comprises epoxy resin and the first component comprises a curing agent or hardener. The step (b) comprises an operation selected from compressions in two mutually perpendicular directions, compressions in three mutually perpendicular directions, compression in a cylindrically radial direction and/or isostatic compression. The step (c) involves calendering the composite compact into sheet or plate form. The process further involves a step of continuously collecting the composite sheet on a winding roll, treating the composite sheet or plate by heating, exposing to a high energy radiation, molding, embossing and/or impressing to activate the binder or matrix material thus promoting adhesion within the composite to produce a consolidated composite composition. The binder or matrix material comprises a char-yielding material and the process further involves a step of baking or pyrolizing the composite at a temperature for converting char-yielding material into carbon or graphite. The exfoliated graphite worms are obtained from intercalation and exfoliation of a graphite material selected from natural graphite, synthetical graphite, highly oriented pyrolytic graphite, graphite fiber, graphitic nano-fiber, spheroidal graphite, meso-carbon micro-bead, graphite oxide, graphite fluoride and/or chemically modified graphite. Preferred Components: The binder or matrix material comprises a polymer, ceramic, glass, metal, carbon, polymeric carbon, asphalt, tar, coal tar pitch, petroleum pitch and/or mesophase pitch. The polymer is selected from polyethylene, polypropylene, nylon, polyesters, polytetrafluoroethylene, polyvinylidene fluoride, fluoro polymers, polyacrylonitrile, acrylic resins, epoxides, polyimide, bismale imide, phenol formaldehydes, vinyl ester and/or isocyanate resins. The char-yielding material is selected from asphalt, tar, sugars, phenolic resins, coal tar pitches, petroleum pitches, mesophase pitches, saccharides and/or organic polymers. EXAMPLE - Ultrafine polyethylene (PE) powder (15 wt.%) having an average particle size of 10 mu m, was dry-blended with non-expandable natural graphite particles (30 wt.%) and acid-intercalated, expandable graphite (70 wt.%). The three-component mixture was transported through a quartz tube, which was set at a temperature of 1100 degrees C and the residence time of graphite in the heated zone was 20 seconds. The resulting material was a compressible mixture of polyethylene-expanded graphite composite (test). Similarly a comparative was prepared except that PE powder was added after exfoliation of the expandable graphite. Both test/comparative were evaluated for flexural strength. Results showed that test/comparative had flexural strength of 24.5/17.5 MPa.