(19)

(11)

EP 1 194 935 A2

(12)

(88) Date of publication A3: 07.09.2001 (43) Date of publication: 10.04.2002 Bulletin 2002/15 (21) Application number: 00950349.1 (22) Date of filing: 14.07.2000

(51) International Patent Classification (IPC)7: H01F 6/06 (86) International application number: PCT/US0019/204 (87) International publication number: WO 0106/524 (25.01.2001 Gazette 2001/04)

(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: 14.07.1999 US 143666 P (71) Applicant: E.I. DU PONT DE NEMOURS & COMPANY INCORPORATED Wilmington,Delaware 19898 (US)	(72) Inventors: REY, Christopher, Mark Hockessin, DE 19707 (US) WESTENDORF, Charles, L., Jr. Wilmington, DE 19808 (US) HOFFMAN, William, C., Jr. Newark, DE 19711 (US) (74) Representative: Carpmaels & Ransford  43 Bloomsbury Square GB-London WC1A 2RA GB-London WC1A 2RA (GB)