(19)

(11)

EP 3 105 373 A1

(12)

(43) Date of publication: 21.12.2016 Bulletin 2016/51 (21) Application number: 15704029.6 (22) Date of filing: 13.02.2015

(51) International Patent Classification (IPC):  D21H 17/67(2006.01) D21H 17/00(2006.01) D21H 19/40(2006.01) D21H 17/68(2006.01) D21H 19/38(2006.01) (86) International application number: PCT/EP2015/053133 (87) International publication number: WO 2015/121432 (20.08.2015 Gazette 2015/33)

(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: 13.02.2014 EP 14290035 (71) Applicant: Imerys Minerals Limited Par, Cornwall PL24 2SQ (GB)	(72) Inventors: HALLAM, Benny Truro Cornwall TR3 6ER (GB) RABOT, Yannick F-31120 Lacroix-Falgarde (FR) (74) Representative: Rushton, David John  Haseltine Lake LLP Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)