(19)

(11)

EP 1 299 322 A1

(12)

(43) Date of publication: 09.04.2003 Bulletin 2003/15 (21) Application number: 01952434.7 (22) Date of filing: 05.07.2001

(51) International Patent Classification (IPC)7: C04B 41/48 (86) International application number: PCT/US0121/270 (87) International publication number: WO 0200/4383 (17.01.2002 Gazette 2002/03)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 07.07.2000 US 216617 P (71) Applicant: E.I. DUPONT DE NEMOURS AND COMPANY Wilmington,Delaware 19898 (US)	(72) Inventors: FEIRING, Andrew, Edward Wilmington, DE 19807 (US) TUMINELLO, William, Howard Newark, DE 19711 (US) (74) Representative: Jones, Alan John  CARPMAELS & RANSFORD43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)