(19)

(11)

EP 2 148 845 A1

(12)

(43) Date of publication: 03.02.2010 Bulletin 2010/05 (21) Application number: 08767754.8 (22) Date of filing: 16.05.2008

(51) International Patent Classification (IPC):  C04B 37/04(2006.01) F41H 5/04(2006.01) C03C 27/06(2006.01) B32B 17/10(2006.01) (86) International application number: PCT/US2008/006297 (87) International publication number: WO 2008/150355 (11.12.2008 Gazette 2008/50)

(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: 21.05.2007 US 804856 (71) Applicant: Corning Incorporated Corning NY 14831 (US)	(72) Inventors: PINCKNEY, Linda, R. Corning, NY 14830 (US) TIETJE, Steven, A. Lindley, NY 14858 (US) ZHANG, Jian-zhi, J. Ithaca, NY 14850 (US) (74) Representative: Anderson, James Edward George  Elkington and Fife LLP Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)