(19)

(11)

EP 1 141 649 A1

(12)

(43) Date of publication: 10.10.2001 Bulletin 2001/41 (21) Application number: 99942041.7 (22) Date of filing: 10.08.1999

(51) International Patent Classification (IPC)7: F41H 5/04 (86) International application number: PCT/US9917/937 (87) International publication number: WO 0037/876 (29.06.2000 Gazette 2000/26)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 21.12.1998 US 217360 (71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY WilmingtonDelaware 19898 (US)	(72) Inventor: CHIOU, Minshon, J. Chesterfield, VA 23838 (US) (74) Representative: Beacham, Annabel Rose et al Frank B. Dehn & Co.,European Patent Attorneys,179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)