(19)

(11)

EP 2 686 479 A1

(12)

(43) Date of publication: 22.01.2014 Bulletin 2014/04 (21) Application number: 12716063.8 (22) Date of filing: 14.03.2012

(51) International Patent Classification (IPC):  D21C 5/02(2006.01) B09B 5/00(2006.01) D21B 1/02(2006.01) B09B 3/00(2006.01) (86) International application number: PCT/GB2012/050554 (87) International publication number: WO 2012/123736 (20.09.2012 Gazette 2012/38)

(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 (30) Priority: 14.03.2011 GB 201104315 (71) Applicant: Zystur Limited Hove, Sussex BN3 7GS (GB)	(72) Inventor: OSMENT, Martin Hove, Sussex BN37GS (GB) (74) Representative: Boult Wade Tennant  Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)