(19)

(11)

EP 1 861 408 A1

(12)

(43) Date of publication: 05.12.2007 Bulletin 2007/49 (21) Application number: 05725398.1 (22) Date of filing: 09.03.2005

(51) International Patent Classification (IPC):  C07F 7/04(2006.01) (86) International application number: PCT/US2005/008204 (87) International publication number: WO 2006/098722 (21.09.2006 Gazette 2006/38)

(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 MC NL PL PT RO SE SI SK TR (71) Applicant: Advanced Silicon Materials LLC Silver Bow, MT 59750 (US)	(72) Inventor: BRENEMAN, William, C. Moses Lake, WA 98837 (US) (74) Representative: Harrison Goddard Foote  Belgrave Hall Belgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)