Global Patent Index - EP 0929702 A1

EP 0929702 A1 19990721 - METHOD FOR THE MANUFACTURE OF AN EXTRUDED LYOCELL ARTICLE

Title (en)

METHOD FOR THE MANUFACTURE OF AN EXTRUDED LYOCELL ARTICLE

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES EXTRUDIERTEN ARTIKELS AUS LYOCELL

Title (fr)

PROCEDE DE FABRICATION D'UN ARTICLE EN LYOCEL EXTRUDE

Publication

EP 0929702 A1 19990721 (EN)

Application

EP 97943988 A 19971001

Priority

  • GB 9702704 W 19971001
  • GB 9620585 A 19961003

Abstract (en)

[origin: WO9814648A1] Cellulose is exposed to high-energy radiation at a dosage in the rampe 1-4 kGy and then dissolved in an aqueous tertiary amine N-oxide solvent. The resulting solution is extruded through a die to form an extruded precursor, which is then washed and dried to form extruded lyocell articles, such as fibres and films. In a preferred embodiment, only part of the cellulose is irradiated.

IPC 1-7

D01F 2/00; C08B 1/00

IPC 8 full level

C08B 1/00 (2006.01); D01F 2/00 (2006.01)

CPC (source: EP KR)

C08B 1/003 (2013.01 - EP); D01F 2/00 (2013.01 - EP KR)

Citation (search report)

See references of WO 9814648A1

Designated contracting state (EPC)

AT BE DE ES FI FR GB IT NL SE

DOCDB simple family (publication)

WO 9814648 A1 19980409; AU 4563897 A 19980424; EP 0929702 A1 19990721; GB 9620585 D0 19961120; KR 20000036142 A 20000626; TW 392001 B 20000601; ZA 978810 B 19980417

DOCDB simple family (application)

GB 9702704 W 19971001; AU 4563897 A 19971001; EP 97943988 A 19971001; GB 9620585 A 19961003; KR 19997002182 A 19990315; TW 86114292 A 19971002; ZA 978810 A 19971001