(19)

(11)

EP 1 117 753 A1

(12)

(43) Date of publication: 25.07.2001 Bulletin 2001/30 (21) Application number: 99950077.0 (22) Date of filing: 30.09.1999

(51) International Patent Classification (IPC)7: C10M 131/10, C10M 131/12, C10M 169/04 // (C10M169/04, 101:02, 131:10), C10M131:12, C10N30:06 (86) International application number: PCT/US9922/827 (87) International publication number: WO 0020/539 (13.04.2000 Gazette 2000/15)

(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: 02.10.1998 US 102845 P (71) Applicant: E.I. DUPONT DE NEMOURS AND COMPANY Wilmington, DE 19808 (US)	(72) Inventors: BEATTY, Richard, Paul Wilmington, DE 19808 (US) MORKEN, Peter, Arnold Wilmington, DE 19810 (US) (74) Representative: Jones, Alan John  CARPMAELS & RANSFORD43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)