CARBON FIBER AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a carbon fiber having a hollow part in the interior of the fiber, having low apparent specific gravity and having high strength in horizontal direction when formed as a composite. SOLUTION: The carbon fiber has a hollow part and has low specific gravity of ≤1.60 and...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIDA TOMIHIRO, HIGUCHI MICHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a carbon fiber having a hollow part in the interior of the fiber, having low apparent specific gravity and having high strength in horizontal direction when formed as a composite. SOLUTION: The carbon fiber has a hollow part and has low specific gravity of ≤1.60 and has an uniform and specific structure in which the ratio of maximum diameter R1 of the hollow part to minimum diameter of the hollow part satisfies the formula 0≤R2≤R1