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US 4,400,433 AGranted
Process for the preparation of molding flexible graphite granules and a molded graphite product produced therefrom
AssigneeFukuvi Chemical Industry Co., Ltd.
InventorsJiro Ishiguro, Kazuo Maruya
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Abstract
Flexible graphite granules prepared by a process comprising agitating vermiform expanded graphite masses having a bulk density of not more than 0.01 g/cc in a liquid have been found to be extremely suitable for producing a flexible graphite product, even with a low density, having an excellent shape-retaining property as well as a shapeability and exhibiting strong mechanical strengths.
Claims6
A molded graphite product produced by a process comprising:
- immersing veriform expanded graphite masses having a bulk density of not more than 0.01 g/cc in a liquid which is inert to the graphite and capable of wetting at least the surfaces of the graphite masses, said liquid being employed in an amount of at least 25 times, by weight, that of the vermiform expanded graphite masses;
- agitating the graphite masses in the liquid for a time sufficient for the graphite masses to undergo compression and density-increase and form graphite granules;
- separating the graphite granules from the liquid;
- drying the graphite granules;
- and
- molding the dried graphite granules by pressing to have a density of 0.8 to 2.0 g/cc.
3 more elements
Dependencies are inferred from the claim text.