EP 0743991 A1 19961127 - PROCESS FOR PRODUCING SHAPED CELLULOSE BODIES
Title (en)
PROCESS FOR PRODUCING SHAPED CELLULOSE BODIES
Title (de)
VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKÖRPER
Title (fr)
PROCEDE DE FABRICATION DE CORPS MOULES EN CELLULOSE
Publication
Application
Priority
- AT 9500133 W 19950626
- AT 78395 A 19950509
Abstract (en)
[origin: WO9627035A1] The invention concerns a process for manufacturing cellulose moulded bodies in which a suspension of cellulose in an aqueous solution of a tertiary amine oxide is converted to a mouldable solution which is extruded using a shaping tool and introduced into a regeneration bath. The process is characterised by the fact that at least a portion of the materials in the apparatus and pipes used for transporting and processing the solution and in contact with the mouldable solution contains at least one element from the group titanium, zirconium, chromium and nickel in elemental form or in the form of compounds, to a depth of at least 0.5 mu m, preferably more than 1.0 mu m, and in a proportion of at least 90 %; the rest of the composition must not contain any of the elements copper, molybdenum, tungsten or cobalt. By using specific elements and compounds in this way, it is possible to prevent or limit exothermic decomposition reactions in the cellulose solution.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
D01F 2/00 (2013.01 - EP US)
Citation (search report)
See references of WO 9627035A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9627035 A1 19960906; AT 403057 B 19971125; AT A78395 A 19970315; AT E145947 T1 19961215; AU 2706695 A 19960918; AU 697159 B2 19981001; BR 9507476 A 19970902; CA 2174094 A1 19961110; CN 1151769 A 19970611; DE 19581451 D2 19970227; DE 59500054 D1 19970116; DK 0743991 T3 19970818; EP 0743991 A1 19961127; EP 0743991 B1 19961204; ES 2098168 T3 19970416; FI 961598 A0 19960411; FI 961598 A 19960510; GB 2303576 A 19970226; GB 9607856 D0 19970115; GR 3021914 T3 19970331; JP H10502710 A 19980310; NO 961424 D0 19960411; NO 961424 L 19961220; US 5766530 A 19980616
DOCDB simple family (application)
AT 9500133 W 19950626; AT 78395 A 19950509; AT 95922340 T 19950626; AU 2706695 A 19950626; BR 9507476 A 19950626; CA 2174094 A 19950626; CN 95193917 A 19950626; DE 19581451 T 19950626; DE 59500054 T 19950626; DK 95922340 T 19950626; EP 95922340 A 19950626; ES 95922340 T 19950626; FI 961598 A 19960411; GB 9607856 A 19950626; GR 960403141 T 19961205; JP 51352295 A 19950626; NO 961424 A 19960411; US 47184295 A 19950606