Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – From cellulosic material
Patent
1998-06-03
1999-11-23
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
From cellulosic material
264 296, C01B 3102
Patent
active
059894644
ABSTRACT:
The present invention provides a vitreous carbon-active carbon composite material wherein the vitreous carbon is derived from a polycarbodiimide resin; a process for producing the above vitreous carbon-active carbon composite material by firing a mixture of a polycarbodiimide resin and an active carbon, or a molded article of desired shape prepared from the mixture, in a non-oxidizing atmosphere; and a polarizable electrode for use in an electric double layer capacitor, which consists of the above vitreous carbon-active carbon composite material. The polarizable electrode is free from the drawbacks of the prior art, has a low internal resistance, causes a low degree of powder detachment, has a large electric capacitance per unit weight and per unit volume, and can be produced easily, quickly and inexpensively.
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patent: 5152941 (1992-10-01), Takaku et al.
patent: 5554354 (1996-09-01), Sugino et al.
Hagiwara Atsushi
Saito Kazuo
Nisshinbo Industries Inc.
Tentoni Leo B.
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