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(11)

EP 2 452 012 A1

(12)

(43) Date of publication: 16.05.2012 Bulletin 2012/20 (21) Application number: 10796769.7 (22) Date of filing: 10.06.2010

(51) International Patent Classification (IPC):  D21D 5/16(2006.01) D21D 5/06(2006.01) (86) International application number: PCT/FI2010/050482 (87) International publication number: WO 2011/004060 (13.01.2011 Gazette 2011/02)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 07.07.2009 FI 20095769 (71) Applicant: Andritz Oy 00180 Helsinki (FI)	(72) Inventor: LJOKKOI, Risto FI-48600 Kotka (FI) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastraße 4 81925 München 81925 München (DE)