(19)

(11)

EP 3 148 954 A1

(12)

(43) Date of publication: 05.04.2017 Bulletin 2017/14 (21) Application number: 15799132.4 (22) Date of filing: 27.05.2015

(51) International Patent Classification (IPC):  C04B 28/04(2006.01) C04B 18/08(2006.01) C04B 7/26(2006.01) (86) International application number: PCT/FI2015/050367 (87) International publication number: WO 2015/181447 (03.12.2015 Gazette 2015/48)

(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 (30) Priority: 28.05.2014 FI 20145489 (71) Applicant: Fatec Oy 71800 Siilinjärvi (FI)	(72) Inventor: HEIKKINEN-MUSTONEN, Aino FI-71800 Siilinjärvi (FI) (74) Representative: Salomäki, Juha Kari Ensio  Salomaki Oy Kankurinkatu 4-6 05800 Hyvinkää 05800 Hyvinkää (FI)