(19)

(11)

EP 1 841 907 A1

(12)

(43) Date of publication: 10.10.2007 Bulletin 2007/41 (21) Application number: 06719130.4 (22) Date of filing: 20.01.2006

(51) International Patent Classification (IPC):  D01G 1/08(2006.01) (86) International application number: PCT/US2006/002166 (87) International publication number: WO 2006/078974 (27.07.2006 Gazette 2006/30)

(84) Designated Contracting States: CH DE FR GB IT LI NL (30) Priority: 21.01.2005 US 645695 P (71) Applicant: E.I. DUPONT DE NEMOURS AND COMPANY Wilmington, Delaware 19898 (US)	(72) Inventor: SIMMONDS, Glen, E. Avondale, Pennsylvania 19311 (US) (74) Representative: Matthews, Derek Peter et al Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)