Electrically conducting fibrous carbon

Claim 1

AN ELECTRICALLY CONDUCTIVE FIBROUS PRODUCT OF SUBSTANTIALLY PURE CARBON PRODUCED BY THE METHOD WHICH CONSISTS ESSENTIALLY OF THE STEPS OF SUBJECTING A FIBROUS AND SUBSTANTIALLY PURE CELLULOSIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF STRANDS, SKEINS, ROPES, FABRICS AND BATTING PADS OF SAID MATERIAL IN THE SUBSTANTIAL ABSENCE OF OXYGEN TO A FIRST HEAT TREATMENT WITHIN THE TEMPERATURE RANGE OF ABOUT 300*F. TO ABOUT 1500*F. FOR A TIME SUFFICIENT TO EFFECT SUBSTANTIALLY COMPLETE CARBONIZATION OF THE CONTAINED FIBERS AND TO VOLATIZE AT LEAST A SUBSTANTIAL PORTION OF THE EXTRANEOUS MATTER CONTAINED IN THE SAID MATERIAL WHICH ARE VOLATIZABLE AT TEMPERATURES WITHIN THE SAID RANGE, SUBJECTING SAID MATERIAL TO A SECOND HEAT TREATMENT AT A TEMPERATURE ABOVE ABOUT 1500* F. FOR A TIME SUFFICIENT TO RENDER SAID MATERIAL ELECTRICALLY CONDUCTIVE, SAID PRODUCT RETAINING SUBSTANTIALLY THE ORIGINAL FIBER FORM AND FLEXIBLE CHARACTERISTICS OF SAID FIBROUS CELLULOSIC MATERIAL.