(19)

(11)

EP 2 575 511 A1

(12)

(43) Date of publication: 10.04.2013 Bulletin 2013/15 (21) Application number: 11722854.4 (22) Date of filing: 23.05.2011

(51) International Patent Classification (IPC):  A24D 3/02(2006.01) (86) International application number: PCT/GB2011/000783 (87) International publication number: WO 2011/148126 (01.12.2011 Gazette 2011/48)

(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 (30) Priority: 25.05.2010 GB 201008725 (71) Applicant: Filtrona Filter Products Development Co. Pte. Ltd Singapore 307684 (SG)	(72) Inventors: PENROSE, Graham Jarrow, Tyne&Wear NE32 3UP (GB) TAYLOR, Michael, John Blaydon, Tyne&Wear NE21 4LE (GB) (74) Representative: Bates, Philip Ian  Reddie & Grose LLP 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)