(19)

(11)

EP 0 944 761 A1

(12)

(43) Date of publication: 29.09.1999 Bulletin 1999/39 (21) Application number: 98947590.0 (22) Date of filing: 14.10.1998

(51) International Patent Classification (IPC):  D21G 1/ 00( . ) D21G 1/ 02( . ) (86) International application number: PCT/FI1998/000801 (87) International publication number: WO 1999/028551 (10.06.1999 Gazette 1999/23)

(84) Designated Contracting States: AT DE FI FR GB IT SE (30) Priority: 14.10.1997 FI 19970003954 (71) Applicant: VALMET CORPORATION 00620 Helsinki (FI)	(72) Inventors: KOIVUKUNNAS, Pekka FIN-04430 Järvenpää (FI) TANI, Mikko FIN-04400 Järvenpää (FI) HASANEN, Kari FIN-04400 Järvenpää (FI) (74) Representative: Salonen, Esko Tapani, et al  Forssén & Salomaa Oy, Yrjönkatu 30 00100 Helsinki 00100 Helsinki (FI)