(19)

(11)

EP 0 920 303 A1

(12)

(43) Date of publication: 09.06.1999 Bulletin 1999/23 (21) Application number: 97937667.0 (22) Date of filing: 15.08.1997

(51) International Patent Classification (IPC):  A61K 9/ 20( . ) A61K 9/ 16( . ) (86) International application number: PCT/GB1997/002220 (87) International publication number: WO 1998/007411 (26.02.1998 Gazette 1998/08)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV RO SI (30) Priority: 23.08.1996 GB 19960017658 (71) Applicant: Dynsol Limited Huddersfield, West Yorkshire HD1 1BB (GB)	(72) Inventors: CONTE, Rolland, René F-78113 Bourdonné (FR) LASNE, Yves F-69800 Saint Priest (FR) (74) Representative: Eyles, Christopher Thomas  W.P. THOMPSON & CO. Celcon House 289-293 High Holborn London WC1V 7HU London WC1V 7HU (GB)