Method for fibrillating carbonaceous fibers
AssigneeMitsubishi Chemical Industries Limited
InventorsTakeshi Ikeda, Hideo Handa, Keisuke Nakano
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Abstract
A method for fibrillating carbonaceous fibers, which comprises contacting a tow of carbonaceous fibers to rotating surfaces of rollers for fibrillation, wherein at least two rollers are disposed so that the center axes of the rollers intersect the direction of advance of the tow of carbonaceous fibers and the rotating surfaces of the rollers are substantially alternately inclined in opposite directions, thereby to exert a shearing force to the tow in a direction transverse to the direction of advance of the tow.
Claims12
A method for fibrillating carbonaceous fibers, which are inflexible or which are fused to each other, said method thereby producing a flexible and fusion-free product which does not exhibit fluffing, which comprises:
- contacting an advancing tow of said carbonaceous fibers with at least two spaced apart rollers which rotate and which are so positioned relative to each other that their center axes intersect the direction of said advancing tow of said carbonaceous fibers, the rollers having substantially alternately, rotating surfaces which are inclined in opposite directions to each other, the result of which contact is an exertion of a shearing force on said advancing tow in an alternately opposite direction transverse to said direction of said advancing tow of said carbonaceous fibers.
Dependencies are inferred from the claim text.