Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased
Patent
1998-06-08
2000-03-14
Copenheaver, Blaine
Stock material or miscellaneous articles
Sheet including cover or casing
Foamed or expanded material encased
156 78, 156245, 252 70, 252 73, 252 79, 264 296, 264 297, 264 42, 264 465, 264 85, 264101, 427238, 427239, 427435, 4283055, 4283073, 4283202, 428403, 428913, B29C 6720, B32B 326, C01B 3102, C09K 500
Patent
active
060370327
ABSTRACT:
A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.
REFERENCES:
patent: 3558276 (1971-01-01), Otani
patent: 4276246 (1981-06-01), Bonzom et al.
patent: 4512388 (1985-04-01), Claar et al.
patent: 4572864 (1986-02-01), Benson et al.
Dan D. Edie, "Carbon Fibers, Filaments & Composites," Pitch and Mesophase Fibers, Kluwer Publishers, (Jan. 1, 1990).
Burchell Timothy D.
Klett James W.
Copenheaver Blaine
Lockheed Martin Energy Research Corp.
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