(19)

(11)

EP 0 850 127 A1

(12)

(43) Date of publication: 01.07.1998 Bulletin 1998/27 (21) Application number: 96928590.0 (22) Date of filing: 29.08.1996

(51) International Patent Classification (IPC):  B27K 3/ 15( . ) B27K 3/ 52( . ) B27K 3/ 50( . ) (86) International application number: PCT/GB1996/002102 (87) International publication number: WO 1997/007946 (06.03.1997 Gazette 1997/11)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 29.08.1995 ZA 19950007241 (71) Applicants: Biotrans UK Ltd. Dundee DD1 3AQ (GB) Silvadux B.V. 5482 NM Schijndel (NL) Dr Wolman Gmbh 76547 Sinzheim (DE)	(72) Inventors: PIZZI, Antonio F-88000 Epinal (FR) BAECKER, Albin, Alexander, Wladyslaw Westville 3630 (ZA) SHELVER, Graham, David Midrand 1686 (ZA) (74) Representative: Harrison, David Christopher, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)