(19)

(11)

EP 2 217 395 A1

(12)

(43) Date of publication: 18.08.2010 Bulletin 2010/33 (21) Application number: 08852655.3 (22) Date of filing: 21.11.2008

(51) International Patent Classification (IPC):  B22F 3/15(2006.01) (86) International application number: PCT/GB2008/003906 (87) International publication number: WO 2009/066082 (28.05.2009 Gazette 2009/22)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 22.11.2007 GB 0722850 23.01.2008 US 22935 (71) Applicant: Advanced Interactive Materials Science Limited Peterborough PE3 7PR (GB)	(72) Inventor: ARCHER, Geoffrey, Frederick Stamford, Lincolnshire PE9 4BA (GB) (74) Representative: Hufton, Victoria Alice et al Stratagem IPM Ltd Fosters Wing Anstey Hall Maris Lane Trumpington, Cambridge CB2 9LG Trumpington, Cambridge CB2 9LG (GB)