(19)

(11)

EP 1 218 588 A1

(12)

(43) Date of publication: 03.07.2002 Bulletin 2002/27 (21) Application number: 00919238.6 (22) Date of filing: 03.04.2000

(51) International Patent Classification (IPC)7: D21F 3/02 (86) International application number: PCT/SE0000/635 (87) International publication number: WO 0102/642 (11.01.2001 Gazette 2001/02)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.07.1999 SE 9902593 28.10.1999 US 162043 P (71) Applicant: Metso Paper Karlstad Aktiebolag 651 15 Karlstad (SE)	(72) Inventor: ANDR ASSON, Ivar S-653 51 Karlstad (SE) (74) Representative: Hynell, Magnus et al Hynell Patenttjänst AB,Patron Carls väg 2 683 40 Hagfors/Uddeholm 683 40 Hagfors/Uddeholm (SE)