(19)

(11)

EP 2 059 480 A2

(12)

(88) Date of publication A3: 19.06.2008 (43) Date of publication: 20.05.2009 Bulletin 2009/21 (21) Application number: 07834850.5 (22) Date of filing: 04.09.2007

(51) International Patent Classification (IPC):  C01G 17/00(2006.01) C01G 19/00(2006.01) C01B 33/02(2006.01) C01G 21/00(2006.01) (86) International application number: PCT/NZ2007/000246 (87) International publication number: WO 2008/030110 (13.03.2008 Gazette 2008/11)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 04.09.2006 NZ 54965806 (71) Applicant: Victoria Link Limited Wellington (NZ)	(72) Inventors: TILLEY, Richard David Wellington (NZ) BUMBY, Christopher William Wellington (NZ) (74) Representative: Brown, David Leslie  HASELTINE LAKE Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)