(19)

(11)

EP 3 384 220 A1

(12)

(43) Date of publication: 10.10.2018 Bulletin 2018/41 (21) Application number: 16870088.8 (22) Date of filing: 30.11.2016

(51) International Patent Classification (IPC):  F26B 9/10(2006.01) F26B 3/32(2006.01) (86) International application number: PCT/IB2016/057197 (87) International publication number: WO 2017/093901 (08.06.2017 Gazette 2017/23)

(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 RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 01.12.2015 US 201562261522 P (71) Applicant: Stora Enso Oyj 00101 Helsinki (FI)	(72) Inventor: MANNINEN, Teemu 16300 Orimattila (FI) (74) Representative: Steinrud, Henrik  Stora Enso AB Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)