(19)

(11)

EP 3 350 133 A1

(12)

(43) Date of publication: 25.07.2018 Bulletin 2018/30 (21) Application number: 16791055.3 (22) Date of filing: 19.09.2016

(51) International Patent Classification (IPC):  C02F 3/32(2006.01) C02F 3/04(2006.01) C02F 1/28(2006.01) (86) International application number: PCT/FI2016/050646 (87) International publication number: WO 2017/046456 (23.03.2017 Gazette 2017/12)

(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: 18.09.2015 FI 20155671 (71) Applicant: Carbons Finland Oy 45100 Kouvola (FI)	(72) Inventors: SUUTARI, Markku 45100 Kouvola (FI) KOLEHMAINEN, Ilmo 45100 Kouvola (FI) (74) Representative: Seppo Laine Oy  Itämerenkatu 3 B 00180 Helsinki 00180 Helsinki (FI)