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EP 2 307 326 A1

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(43) Date of publication: 13.04.2011 Bulletin 2011/15 (21) Application number: 09789766.4 (22) Date of filing: 08.06.2009

(51) International Patent Classification (IPC):  C03C 3/064(2006.01) C03C 3/07(2006.01) C03C 3/074(2006.01) C03C 8/04(2006.01) C03C 8/12(2006.01) C03C 8/18(2006.01) C03C 10/00(2006.01) H01B 1/22(2006.01) C03C 3/066(2006.01) C03C 3/072(2006.01) C03C 3/14(2006.01) C03C 8/10(2006.01) C03C 8/14(2006.01) C03C 8/20(2006.01) C03C 14/00(2006.01) (86) International application number: PCT/US2009/046564 (87) International publication number: WO 2010/011429 (28.01.2010 Gazette 2010/04)

(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 TR Designated Extension States: AL BA RS (30) Priority: 26.06.2008 US 75826 P 08.07.2008 US 78888 P 21.10.2008 US 107035 P 12.11.2008 US 113701 P 23.12.2008 US 140235 P 09.01.2009 US 143525 P 05.02.2009 US 150044 P (71) Applicant: E. I. du Pont de Nemours and Company Wilmington, DE 19898 (US)

(72) Inventors: KONNO, Takuya Utsunomiya-shi Tochigi 321-0138 (JP) LAUGHLIN, Brian,, J. Apex, NC 27539 (US) MATSUNO, Hisashi Tokyo 1-33-31 (JP) (74) Representative: Hoffmann, Benjamin  Dehns St. Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)