(19)

(11)

EP 0 195 027 A1

(12)

(43) Date of publication: 24.09.1986 Bulletin 1986/39 (21) Application number: 85904401.0 (22) Date of filing: 30.08.1985

(51) International Patent Classification (IPC):  C06B 23/ 04( . ) (86) International application number: PCT/AU1985/000207 (87) International publication number: WO 1986/001796 (27.03.1986 Gazette 1986/07)

(84) Designated Contracting States: GB (30) Priority: 11.09.1984 AU 19840007060 (71) Applicant: THE COMMONWEALTH OF AUSTRALIA care of THE SECRETARY, DEPARTMENT OF DEFENSE SUPPORT Canberra, ACT 2600 (AU)	(72) Inventor: WINKLER, David, Alan Endeavour Hills, VIC 3802 (AU) (74) Representative: Opperman, Stuart Richard, et al  Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)