(19)

(11)

EP 2 092 117 A1

(12)

(43) Date of publication: 26.08.2009 Bulletin 2009/35 (21) Application number: 07808845.7 (22) Date of filing: 26.09.2007

(51) International Patent Classification (IPC):  D21F 1/00(2006.01) (86) International application number: PCT/SE2007/000845 (87) International publication number: WO 2008/041901 (10.04.2008 Gazette 2008/15)

(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 MT NL PL PT RO SE SI SK TR (30) Priority: 06.10.2006 SE 0602133 (71) Applicant: Metso Paper, Inc. 00101 Helsingfors (FI)	(72) Inventors: LÖVGREN, Hans S-855 90 Sundsvall (SE) ÖDMARK, Leif S-864 33 Matfors (SE) (74) Representative: Estreen, Lars J.F.  Bergenstråhle & Lindvall AB P.O. Box 17704 118 93 Stockholm 118 93 Stockholm (SE)