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(11)

EP 0 712 454 A1

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(43) Date of publication: 22.05.1996 Bulletin 1996/21 (21) Application number: 95920084.0 (22) Date of filing: 22.05.1995

(51) International Patent Classification (IPC):  D21F 1/ 48( . ) D21F 9/ 00( . ) (86) International application number: PCT/FI1995/000276 (87) International publication number: WO 1995/034713 (21.12.1995 Gazette 1996/02)

(84) Designated Contracting States: AT DE FR GB IT SE (30) Priority: 15.06.1994 FI 19940002832 (71) Applicant: VALMET CORPORATION FIN-00620 Helsinki (FI)	(72) Inventors: EVÄSOJA, Pekka FIN-40200 Jyväskylä (FI) POIKOLAINEN, Antti FIN-40250 Jyväskylä (FI) (74) Representative: Pellmann, Hans-Bernd, Dipl.-Ing., et al  Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 80336 München 80336 München (DE)