Global Patent Index - EP 1241283 A1

EP 1241283 A1 2002-09-18 - Device for producing fibrous synthetic materials

Title (en)

Device for producing fibrous synthetic materials

Title (de)

Vorrichtung zur Herstellung von synthetischen Faserstoffen

Title (fr)

Dispositif de production de matières fibreuses synthétiques

Publication

EP 1241283 A1 (DE)

Application

EP 02004475 A

Priority

DE 10112089 A

Abstract (en)

[origin: US2002127291A1] Fibers of improved quality can be produced with a reduced energy input in a device for producing synthetic fiber materials which has a polymer melt feed leading to a rotating hollow reactor (1), the wall of which can be heated and which widens conically in order to guide a film melt toward an open side that can be closed with a lid (13), and which has ribs (4) for dividing the melt film into fibers that grow rigid after leaving the hollow reactor (1); and said improved quality call be achieved specifically in that the hollow reactor (1) is vertically oriented and exhibits a continuously curved inner wall and at the curved upper side exhibits an opening (3) for introducing the polymer melt, and in that a rotating distributor plate (12) is positioned opposite the opening (3), at a slight distance from the inner wall of the hollow reactor (1).

Abstract (de)

Mit einer Vorrichtung zur Herstellung von synthetischen Faserstoffen mit einer Zuführung für eine Polymerschmelze zu einem rotierenden Hohlreaktor (1), dessen Wandung aufheizbar ist, sich zur Führung eines Schmelzfilms zu einer offenen, mit einem Deckel (13) verschließbaren Seite hin konisch erweitert und mit Rippen (4) zur Aufteilung des Schmelzfilms in nach dem Austritt nach dem Hohlreaktor (1) erstarrende Fasern versehen ist, läßt sich eine verbesserte Qualität der hergestellten Fasern bei verringertem Energieeinsatz dadurch erreichen, dass der Hohlreaktor (1) vertikal ausgerichtet ist und eine stetig gekrümmte Innenwandung und an der gekrümmten Oberseite eine Öffnung (3) für die Zuführung der Polymerschmelze aufweist und dass gegenüber der Öffnung (3) ein rotierender Verteilerteller (12) in einem geringen Abstand zur Innenwandung des Hohlreaktors (1) angeordnet ist. <IMAGE>

IPC 1-7 (main, further and additional classification)

D01D 5/08; D01D 5/18

IPC 8 full level (invention and additional information)

D01D 5/08 (2006.01); D01D 5/18 (2006.01)

CPC (invention and additional information)

D01D 5/08 (2013.01); D01D 5/18 (2013.01); Y10S 425/017 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1241283 A1 20020918; CN 1382843 A 20021204; DE 10112089 A1 20021002; DE 10112089 B4 20040304; US 2002127291 A1 20020912; US 6752609 B2 20040622

INPADOC legal status


2008-02-27 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20070901

2005-04-14 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2005-03-09 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH CY DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-04 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-04 [AXX] PAYMENT OF EXTENSION FEES

- Payment date: 20020227

- Countries: LT

2003-06-04 [AXX] PAYMENT OF EXTENSION FEES

- Payment date: 20020227

- Countries: LV

2003-06-04 [AXX] PAYMENT OF EXTENSION FEES

- Payment date: 20020227

- Countries: RO

2003-05-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030317

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT PAYMENT 20020227;LV PAYMENT 20020227;MK;RO PAYMENT 20020227;SI