(19)

(11)

EP 1 828 451 A2

(12)

(88) Date of publication A3: 20.07.2006 (43) Date of publication: 05.09.2007 Bulletin 2007/36 (21) Application number: 05794754.1 (22) Date of filing: 20.10.2005

(51) International Patent Classification (IPC):  D01F 11/02(2006.01) D06P 1/613(2006.01) D06P 5/22(2006.01) D06M 15/423(2006.01) D06M 13/432(2006.01) D06M 13/425(2006.01) D06P 3/60(2006.01) D06P 3/82(2006.01) (86) International application number: PCT/GB2005/004052 (87) International publication number: WO 2006/043070 (27.04.2006 Gazette 2006/17)

(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: 20.10.2004 GB 0423296 (71) Applicant: LENZING AKTIENGESELLSCHAFT 4860 Lenzing (AT)	(72) Inventors: WHITE, Patrick, Arthur Sharnford, Leicestershire LE10 3PT (GB) HAYHURST, Malcolm Bulkington, Warwickshire CV12 9RZ (GB) TAYLOR, James, Martin Chellaston, Derby DE73 4H (GB) OWENS, Alan Nuneaton, Warwickshire CV11 6FG (GB) (74) Representative: Spencer, Michael David et al Bromhead Johnson 19 Buckingham Street London WC2N 6EF London WC2N 6EF (GB)