Waddey & Patterson
Isotropic pitch-based materials for thermal insulation
Insulation materials suited to high temperature applications, such as the insulation of furnaces, are formed from a mixture of pitch carbon fibers, such as isotropic pitch carbon fibers, and a binder comprising a solution of sugar in water. The sugar solution is preferably at a concentration of from 20–60% sucrose to yield a low density material having high flexural strength and low thermal conductivity when carbonized to a temperature of about 1800° C.
UCAR Carbon Company, Inc.
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Charles C. Irwin Charles Ching-Feng
Chiu Lewis Chang