(19)

(11)

EP 0 630 370 A1

(12)

(43) Date of publication: 28.12.1994 Bulletin 1994/52 (21) Application number: 93907384.0 (22) Date of filing: 10.03.1993

(51) International Patent Classification (IPC):  A01N 43/ 76( . ) C07D 263/ 46( . ) C07D 413/ 04( . ) C07D 263/ 44( . ) C07D 263/ 48( . ) (86) International application number: PCT/US1993/002164 (87) International publication number: WO 1993/018016 (16.09.1993 Gazette 1993/22)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 11.03.1992 US 19920849563 (71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY Wilmington Delaware 19898 (US)	(72) Inventors: CAMPBELL, Carlton, Lane Newark, DE 19713 (US) GROSS, Charlene, Marie Wilmington, DE 19808 (US) STERNBERG, Jeffrey, Arthur Wilmington, DE 19808 (US) SUN, King-Mo Hockessin, DE 19707 (US) (74) Representative: Hildyard, Edward Martin  Frank B. Dehn & Co. Imperial House 15-19 Kingsway London WC2B 6UZ London WC2B 6UZ (GB)