Patent ID: 7070755
Filing Date: 2006-07-04
Classification: C01B,C04B,F28D,F28F,Y02E

Abstract:
1. A process for producing a thermally conductive carbon foam, comprising: (1) liquefying a synthetic or mesophase pitch; (2) heating the liquefied pitch under non-oxidizing, superatmospheric conditions to produce a carbon foam; (3) coking said carbon foam by heating said carbon foam under non-oxidizing, superatmospheric conditions; (4) carbonizing the carbon foam by heating in a non-oxidizing environment at a temperature higher than that for coking in step (3), and (5) further heating at a yet higher temperature to yield a graphitic carbon foam, wherein after coking step (3), said heatings are performed without oxidatively stabilizing the carbon foam.