(19)

(11)

EP 1 488 037 A1

(12)

(43) Date of publication: 22.12.2004 Bulletin 2004/52 (21) Application number: 03712162.1 (22) Date of filing: 21.03.2003

(51) International Patent Classification (IPC)7: D21B 1/00, D21C 1/00 // B07C5:14 (86) International application number: PCT/FI2003/000219 (87) International publication number: WO 2003/080922 (02.10.2003 Gazette 2003/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 22.03.2002 FI 20020561 (71) Applicant: M-real Oyj 02100 Espoo (FI)	(72) Inventors: RANUA, Jukka FIN-08100 Lohja (FI) LILLEBERG, Risto FIN-02200 Espoo (FI) (74) Representative: Knuth-Lehtola, Sisko et al Seppo Laine Oy,Itämerenkatu 3 B 00180 Helsinki 00180 Helsinki (FI)