(19)

(11)

EP 2 212 470 A1

(12)

(43) Date of publication: 04.08.2010 Bulletin 2010/31 (21) Application number: 08851451.8 (22) Date of filing: 18.11.2008

(51) International Patent Classification (IPC):  D21C 9/08(2006.01) D21H 21/02(2006.01) (86) International application number: PCT/EP2008/065755 (87) International publication number: WO 2009/065829 (28.05.2009 Gazette 2009/22)

(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: 22.11.2007 SE 0702601 (71) Applicant: BIM KEMI AB S-443 03 Stenkullen (SE)	(72) Inventors: KULTALAHTI, Pekka FI-54850 Kuukanniemi (FI) TAKALA, Kari FI-03600 Karkkila (FI) (74) Representative: Andersson, Inga-Lill  Awapatent AB Södra Hamngatan 37-41 Box 11394 404 28 Göteborg 404 28 Göteborg (SE)