(19)

(11)

EP 2 411 552 A1

(12)

(43) Date of publication: 01.02.2012 Bulletin 2012/05 (21) Application number: 10710968.8 (22) Date of filing: 23.03.2010

(51) International Patent Classification (IPC):  C22C 19/05(2006.01) (86) International application number: PCT/US2010/028202 (87) International publication number: WO 2010/111200 (30.09.2010 Gazette 2010/39)

(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 MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 24.03.2009 US 409929 (71) Applicant: General Electric Company Schenectady, NY 12345 (US)	(72) Inventors: OHARA, Kevin, Swayne Boxford MA 01921 (US) CARROLL, Laura, Jill Ammon ID 83406 (US) (74) Representative: Szary, Anne Catherine  GE International Inc. Global Patent Operation - Europe 15 John Adam Street London WC2N 6LU London WC2N 6LU (GB)