Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – With carbonizing – then adding carbonizable material and...
Patent
1992-05-28
1994-03-08
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
With carbonizing, then adding carbonizable material and...
264113, 264122, B32B 516
Patent
active
052924602
ABSTRACT:
Polymer-type fibers longitudinally shrinkable by calcination and other carbon fibers are mixed and mechanically compressed and integrated by a needle punch, and the polymer-type fibers are then shrunk when calcined. Thus, there is obtained high bulk density carbon fiber felt having average bulk density of 0.1 g/cm.sup.3 or more without the carbon fiber felt impregnated with, resin and compressingly molded. The density of carbon fiber felt may change in the thickness direction thereof. The high bulk density carbon fiber felt may be used as a thermal insulator for a high-temperature furnace, a heat-resisting cushioning material, and a material for the electrode of a secondary battery.
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Kyutoku Hirofumi
Otani Yoshihisa
Yamamoto Kouichi
Japan Felt Industrial Company Limited
Osaka Gas Company Limited
Silbaugh Jan H.
Vargot Mathieu
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