(19)

(11)

EP 2 531 052 A1

(12)

(43) Date of publication: 12.12.2012 Bulletin 2012/50 (21) Application number: 11700945.6 (22) Date of filing: 25.01.2011

(51) International Patent Classification (IPC):  A24D 3/04(2006.01) (86) International application number: PCT/EP2011/050946 (87) International publication number: WO 2011/095410 (11.08.2011 Gazette 2011/32)

(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: 05.02.2010 ZA 201000888 (71) Applicant: Tobacco Research And Development Institute (Proprietary) Limited 7600 Stellenbosch (ZA)	(72) Inventor: HERHOLDT, Arnold Leslie 7560 Brackenfell (ZA) (74) Representative: Read, Matthew Charles et al Venner Shipley LLP 200 Aldersgate London EC1A 4HD London EC1A 4HD (GB)