(19)

(11)

EP 2 454 214 A1

(12)

(43) Date of publication: 23.05.2012 Bulletin 2012/21 (21) Application number: 10734423.6 (22) Date of filing: 15.07.2010

(51) International Patent Classification (IPC):  C04B 35/573(2006.01) C04B 35/64(2006.01) C04B 38/00(2006.01) (86) International application number: PCT/US2010/042115 (87) International publication number: WO 2011/008938 (20.01.2011 Gazette 2011/03)

(84) Designated Contracting States: AL 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: 15.07.2009 US 225608 P (71) Applicant: E. I. Du Pont De Nemours And Company Wilmington, Delaware 19898 (US)	(72) Inventors: IWATO, Satoko Tokyo 150-0001 (JP) YAMANAKA, Rina Nagoya (JP) (74) Representative: Towler, Philip Dean  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)