(19)

(11)

EP 0 491 812 A1

(12)

(43) Date of publication: 01.07.1992 Bulletin 1992/27 (21) Application number: 90914097.0 (22) Date of filing: 14.09.1990

(51) International Patent Classification (IPC):  A61K 47/ 48( . ) C08B 37/ 00( . ) (86) International application number: PCT/AU1990/000418 (87) International publication number: WO 1991/004026 (04.04.1991 Gazette 1991/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 14.09.1989 AU 19890006355 14.09.1989 AU 19890006356 17.10.1989 AU 19890006913 (71) Applicant: AUSTRALIAN COMMERCIAL RESEARCH & DEVELOPMENT LIMITED Brisbane, QLD 4000 (AU)	(72) Inventor: PALMER, Clive, Frederick Surfers Paradise, QLD 4217 (AU) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 D-80538 München D-80538 München (DE)