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(11)

EP 1 052 902 A1

(12)

(43) Date of publication: 22.11.2000 Bulletin 2000/47 (21) Application number: 99905747.4 (22) Date of filing: 04.02.1999

(51) International Patent Classification (IPC)7: A01N 47/24 // (A01N47/24, 43:36, 43:08, 35:06, 31:06, 31:02), A01N25:02 (86) International application number: PCT/US9902/437 (87) International publication number: WO 9939/581 (12.08.1999 Gazette 1999/32)

(84) Designated Contracting States: DE FR GB (30) Priority: 06.02.1998 US 73988 P 01.02.1999 US 243394 (71) Applicant: HUNTSMAN PETROCHEMICAL CORPORATION Austin,Texas 78752 (US)	(72) Inventors: MARQUIS, Edward, Thomas Austin, TX 78758 (US) STRIDDE, Howard, Meyer Georgetown, TX 78628 (US) (74) Representative: Winkler, Andreas, Dr. et al FORRESTER & BOEHMERTFranz-Joseph-Strasse 38 80801 München 80801 München (DE)