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EP 2 195 487 A1

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(43) Date of publication: 16.06.2010 Bulletin 2010/24 (21) Application number: 08805466.3 (22) Date of filing: 30.09.2008

(51) International Patent Classification (IPC):  D21H 17/23(2006.01) D21H 17/37(2006.01) D21H 17/43(2006.01) D21H 21/02(2006.01) D21H 23/28(2006.01) D21C 9/08(2006.01) D21H 17/36(2006.01) D21H 17/42(2006.01) D21H 17/47(2006.01) D21H 21/04(2006.01) D21H 23/56(2006.01) (86) International application number: PCT/FI2008/050544 (87) International publication number: WO 2009/043971 (09.04.2009 Gazette 2009/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 01.10.2007 FI 20070746 (71) Applicant: Kemira Oyj 00180 Helsinki (FI)	(72) Inventors: RINTALA, Juha FI-65260 Vaasa (FI) BERTS, Lars-Ola FI-66100 Malax (FI) STRENGELL, Reetta FI-65230 Vaasa (FI) AHLSKOG, Thorbjörn FI-65200 Vaasa (FI) AHLGREN, Jonni FI-02200 Espoo (FI) (74) Representative: Svensson, Johan Henrik  Berggren Oy Ab P.O. Box 16 00101 Helsinki 00101 Helsinki (FI)