(19)
(11) EP 0 404 788 A1

(12)

(43) Date of publication:
02.01.1991 Bulletin 1991/01

(21) Application number: 89903035.0

(22) Date of filing: 17.03.1989
(51) International Patent Classification (IPC): 
C01D 1/ 42( . )
C01F 7/ 14( . )
C23F 11/ 18( . )
C01F 7/ 06( . )
C23F 11/ 06( . )
(86) International application number:
PCT/AU1989/000105
(87) International publication number:
WO 1989/008728 (21.09.1989 Gazette 1989/23)
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 17.03.1988 AU 19880007361

(71) Applicant: COMALCO LIMITED
Melbourne, VIC 3000 (AU)

(72) Inventor:
  • MAY, Robin, Frank
    Greensborough, VIC 3088 (AU)

(74) Representative: Hallybone, Huw George, et al 
CARPMAELS AND RANSFORD 43 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) METALLIC SURFACE PROTECTION