(19)

(11)

EP 1 786 957 A1

(12)

(43) Date of publication: 23.05.2007 Bulletin 2007/21 (21) Application number: 05768044.9 (22) Date of filing: 04.08.2005

(51) International Patent Classification (IPC):  D01F 2/00(2006.01) D01F 1/10(2006.01) (86) International application number: PCT/GB2005/003067 (87) International publication number: WO 2006/013378 (09.02.2006 Gazette 2006/06)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 05.08.2004 GB 0417477 (71) Applicant: LENZING AKTIENGESELLSCHAFT 4860 Lenzing (AT)	(72) Inventors: VEGAD, Hiran, The Orchards, Apt. 20 Derby, DE23 6AY (GB) HAYHURST, Malcolm Bulkington, Warwickshire CV12 9RZ (GB) (74) Representative: Spencer, Michael David et al Bromhead Johnson 19 Buckingham Street London WC2N 6EF London WC2N 6EF (GB)