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EP 2 904 147 A1

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(43) Date of publication: 12.08.2015 Bulletin 2015/33 (21) Application number: 13779677.7 (22) Date of filing: 03.10.2013

(51) International Patent Classification (IPC):  D21H 17/25(2006.01) D21H 17/29(2006.01) D21H 17/41(2006.01) D21H 17/63(2006.01) D21H 17/68(2006.01) D21H 17/28(2006.01) D21H 17/34(2006.01) D21H 17/42(2006.01) D21H 17/67(2006.01) D21H 17/00(2006.01) (86) International application number: PCT/US2013/063310 (87) International publication number: WO 2014/055787 (10.04.2014 Gazette 2014/15)

(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 (30) Priority: 05.10.2012 US 201261710624 P 24.10.2012 US 201261718137 P 23.07.2013 US 201361857600 P (71) Applicant: Specialty Minerals (Michigan) Inc. Bingham Farms, Michigan 48025 (US)	(72) Inventors: HIRVIKOSKI, Lotta Karoliina FI-21200 Raisio (FI) LAAKSO, Ari-Pekka Juhani FI-21200 Raisio (FI) (74) Representative: ZBM Patents - Zea, Barlocci & Markvardsen  Plaza Catalunya, 1 08002 Barcelona 08002 Barcelona (ES)