(19)

(11)

EP 1 472 304 A2

(12)

(88) Date of publication A3: 05.02.2004 (43) Date of publication: 03.11.2004 Bulletin 2004/45 (21) Application number: 03703963.3 (22) Date of filing: 23.01.2003

(51) International Patent Classification (IPC)7: C08G 73/24, C08G 18/70 (86) International application number: PCT/US2003/001930 (87) International publication number: WO 2003/067285 (14.08.2003 Gazette 2003/33)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 04.02.2002 US 67669 23.09.2002 US 253057 (71) Applicant: E.I. du Pont de Nemours and Company Wilmington, DE 19898 (US)	(72) Inventors: BLOMQUIST, Robert Whippany, NJ 07981 (US) DENG, Jian Ming, Steven Brooklyn, NY 11220 (US) (74) Representative: Hirsch, Marc-Roger  Cabinet Hirsch58, avenue Marceau 75008 Paris 75008 Paris (FR)