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1. (WO1989000618) PROCESS AND DEVICE FOR MANUFACTURING ANISOTROPIC CARBON FIBRES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000618 International Application No.: PCT/EP1988/000006
Publication Date: 26.01.1989 International Filing Date: 06.01.1988
IPC:
D01F 9/14 (2006.01) ,D01F 9/15 (2006.01)
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
9
Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
08
of inorganic material
12
Carbon filaments; Apparatus specially adapted for the manufacture thereof
14
by decomposition of organic filaments
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
9
Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
08
of inorganic material
12
Carbon filaments; Apparatus specially adapted for the manufacture thereof
14
by decomposition of organic filaments
145
from pitch or distillation residues
15
from coal pitch
Applicants:
DIDIER ENGINEERING GMBH [DE/DE]; Alfredstraße 28 D-4300 Essen 1, DE (AllExceptUS)
GEIER, Rudolf [DE/DE]; DE (UsOnly)
JOEST, Rolf [DE/DE]; DE (UsOnly)
WÜLLSCHEIDT, Wilhelm [DE/DE]; DE (UsOnly)
Inventors:
GEIER, Rudolf; DE
JOEST, Rolf; DE
WÜLLSCHEIDT, Wilhelm; DE
Agent:
ANDREJEWSKI, Walter @; Theaterplatz 3 D-4300 Essen 1, DE
Priority Data:
P 37 24 102.821.07.1987DE
Title (EN) PROCESS AND DEVICE FOR MANUFACTURING ANISOTROPIC CARBON FIBRES
(FR) PROCEDE ET DISPOSITIF POUR LA FABRICATION DE FIBRES DE CARBONE ANISOTROPES
Abstract:
(EN) Process for manufacturing anisotropic carbon fibres from coaltar pitch, in which said pitch is filtered prior to spinning and the pitch filtrate is distilled in a thin-layer evaporator or concentrated to a mesophase-forming pitch fraction. The pitch concentrate obtained is converted to a mesophase pitch by a heat treatment so that the difficult and costly stage of the process is carried out very rapidily and easily during the fibre manufacturing, namely during the subsequent heat treatment of the spun pitch fibers. The highly viscous pitch is spun economically in a centrifugal spinning frame. Powdered spacers are introduced before spinning or sprinkled before oxidation. The subsequent heat treatment is carried out in a cyclically operating treatment installation and it is there that the oxidation, evacuation, carbonization, evacuation, graphitization, and cooling processes take place.
(FR) Procédé pour la fabrication de fibres de carbone anisotropes à partir de poix de goudron de houille, dans lequel ladite poix est filtrée avant le filage et le filtrat de poix est distillé dans un vaporisateur à couche mince ou concentré afin d'obtenir une fraction de poix génératrice de mésophases. Le concentré de poix obtenu est transformé en une poix à mésophases au cours d'un traitement thermique, de sorte que l'étape difficile et onéreuse du procédé s'effectue très rapidement et simplement au cours de la fabrication des fibres, et notamment du traitement thermique ultérieur des fibres de poix filées. La poix extrêmement visqueuse est filée de manière économique dans un métier à filer centrifuge, des séparateurs pulvérulents étant introduits avant le filage ou épandus avant l'oxydation. Le traitememt thermique ultérieur est réalisé dans une installation de traitement travaillant cycliquement, et c'est là que se déroulent les processus d'oxydation, d'obtention du vide, de carbonisation, d'obtention du vide, de graphitisation et de refroidissement.
Designated States: AU, BR, JP, KP, SU, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0326587AU1988012404