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(11)

EP 1 381 735 A1

(12)

(43) Date of publication: 21.01.2004 Bulletin 2004/04 (21) Application number: 02714250.4 (22) Date of filing: 12.04.2002

(51) International Patent Classification (IPC)7: D21H 19/44, D21H 19/54, D21H 19/56 (86) International application number: PCT/FI2002/000310 (87) International publication number: WO 2002/084028 (24.10.2002 Gazette 2002/43)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 12.04.2001 FI 20010773 (71) Applicant: Raisio Chemicals Ltd. 21200 Raisio (FI)	(72) Inventors: TAMMI, Anna-Liisa FIN-21530 PAIMIO (FI) MIETTINEN, Päivi FIN-23100 MYNÄMÄKI (FI) (74) Representative: Matilainen, Mirja Helena et al Oy Jalo Ant-Wuorinen AB,Iso Roobertinkatu 4-6 A 00120 Helsinki 00120 Helsinki (FI)