(19)

(11)

EP 0 837 628 A1

(12)

(43) Date of publication: 29.04.1998 Bulletin 1998/18 (21) Application number: 97920970.0 (22) Date of filing: 02.05.1997

(51) International Patent Classification (IPC):  A01N 25/ 10( . ) A01N 25/ 12( . ) A01N 47/ 10( . ) A01N 25/ 08( . ) A01N 25/ 34( . ) (86) International application number: PCT/KR1997/000077 (87) International publication number: WO 1997/041726 (13.11.1997 Gazette 1997/49)

(84) Designated Contracting States: IT (30) Priority: 04.05.1996 KR 19960014556 (71) Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY Taejeon 305-606 (KR)	(72) Inventors: CHO, Kwang Yun Taejeon 305-340 (KR) YU, Ju Hyun Yusong-ku, Taejeon 305-343 (KR) LIM, He Kyung Yusong-ku, Taejeon 305-333 (KR) (74) Representative: Keib, Gérard, et al  NOVAMARK TECHNOLOGIES Anciennement Brevets Rodhain & Porte 122, Rue Edouard Vaillant 92593 Levallois Perret Cedex 92593 Levallois Perret Cedex (FR)