(19)

(11)

EP 1 409 749 A1

(12)

(43) Date of publication: 21.04.2004 Bulletin 2004/17 (21) Application number: 02751331.6 (22) Date of filing: 25.07.2002

(51) International Patent Classification (IPC)7: C14C 9/00, D06P 1/00 (86) International application number: PCT/GB2002/003413 (87) International publication number: WO 2003/012149 (13.02.2003 Gazette 2003/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 25.07.2001 GB 0118156 (71) Applicant: Pittards Public Limited Company Yeovil,Somerset BA21 5BA (GB)	(72) Inventor: DAY, Jonathan Lancashire BL9 8LU (GB) (74) Representative: Benson, John Everett  J. A. Kemp & Co.,14 South Square,Gray's Inn London WC1R 5JJ London WC1R 5JJ (GB)