(19)

(11)

EP 0 907 624 A1

(12)

(43) Date of publication: 14.04.1999 Bulletin 1999/15 (21) Application number: 97930231.0 (22) Date of filing: 25.06.1997

(51) International Patent Classification (IPC):  A01N 61/ 00( . ) C05F 3/ 00( . ) C05G 1/ 00( . ) C05G 3/ 02( . ) C05B 7/ 00( . ) C05F 11/ 02( . ) C05G 3/ 00( . ) C05G 5/ 00( . ) (86) International application number: PCT/US1997/011127 (87) International publication number: WO 1997/049651 (31.12.1997 Gazette 1998/05)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 27.06.1996 ZA 19960005477 02.04.1997 ZA 19970002801 (71) Applicant: Organoflo (Proprietary) Limited Brooklyn, Pretoria 0181 (ZA)	(72) Inventors: VAN ROOIJEN, Willem, Abraham Alberton 1449 (ZA) ROUX, Matthys, Martinus Waterkloof Ridge, Pretoria (ZA) VAN DER WALT, Tjaart, Herman Waterkloof, Pretoria (ZA) (74) Representative: Baverstock, Michael George Douglas, et al  BOULT WADE TENNANT, 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)