(19)

(11)

EP 0 871 634 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96936165.0 (22) Date of filing: 03.10.1996

(51) International Patent Classification (IPC):  A01N 41/ 02( . ) A01N 43/ 32( . ) A01N 43/ 76( . ) A01N 55/ 00( . ) C07D 263/ 10( . ) C07D 413/ 10( . ) C07F 7/ 10( . ) A01N 43/ 28( . ) A01N 43/ 74( . ) A01N 47/ 02( . ) A01N 55/ 10( . ) C07D 263/ 14( . ) C07F 7/ 08( . ) C07F 7/ 18( . ) (86) International application number: PCT/US1996/015876 (87) International publication number: WO 1997/013773 (17.04.1997 Gazette 1997/17)

(84) Designated Contracting States: ES FR IT (30) Priority: 12.10.1995 US 19950005121P 18.12.1995 US 19950008748P 15.02.1996 US 19960011744P (71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY Wilmington Delaware 19898 (US)	(72) Inventors: CHIANG, George, Chihshu Wilmington, DE 19803-2900 (US) STEVENSON, Thomas, Martin Newark, DE 19702-1908 (US) (74) Representative: Woodman, Derek, et al  Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)