(19)

(11)

EP 1 554 219 A1

(12)

(43) Date of publication: 20.07.2005 Bulletin 2005/29 (21) Application number: 03755781.6 (22) Date of filing: 05.09.2003

(51) International Patent Classification (IPC)7: C01B 33/00, B01J 13/00, C09C 1/30, C08L 83/04, C08K 9/06 (86) International application number: PCT/US2003/027786 (87) International publication number: WO 2004/031076 (15.04.2004 Gazette 2004/16)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 02.10.2002 US 264129 02.10.2002 US 264231 (71) Applicant: DOW CORNING CORPORATION Midland, MI 48686-0994 (US)	(72) Inventor: CHAO, Timothy Midland, MI 48640 (US) (74) Representative: Kyle, Diana  Elkington and Fife LLP,Prospect House8 Pembroke Road Sevenoaks,Kent TN13 1XR Sevenoaks,Kent TN13 1XR (GB)