(19)

(11)

EP 0 639 111 A1

(12)

(43) Date of publication: 22.02.1995 Bulletin 1995/08 (21) Application number: 92907410.0 (22) Date of filing: 20.03.1992

(51) International Patent Classification (IPC):  B01D 15/ 00( . ) B01J 20/ 281( . ) B01J 20/ 32( . ) C07K 1/ 20( . ) G01N 30/ 88( . ) B01J 20/ 22( . ) B01J 20/ 285( . ) C07K 1/ 16( . ) C07K 16/ 00( . ) G01N 33/ 531( . ) (86) International application number: PCT/DK1992/000092 (87) International publication number: WO 1992/016292 (01.10.1992 Gazette 1992/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 22.03.1991 DK 19910000527 (71) Applicant: KEM-EN-TEC A/S DK-2100 Copehhagen (DK)	(72) Inventors: LIHME, Allan, Otto, Fog DK-3460 Birker d (DK) HANSEN, Marie, Bendix DK-2000 Frederiksberg (DK) (74) Representative: Christiansen, Ejvind, et al  HOFMAN-BANG & BOUTARD A/S Adelgade 15 DK-1304 Copenhagen K DK-1304 Copenhagen K (DK)