(19)
(11) EP 0 483 157 A1

(12)

(43) Date of publication:
06.05.1992 Bulletin 1992/19

(21) Application number: 90908424.0

(22) Date of filing: 07.06.1990
(51) International Patent Classification (IPC): 
C02F 1/ 24( . )
C02F 1/ 52( . )
(86) International application number:
PCT/AU1990/000250
(87) International publication number:
WO 1990/015024 (13.12.1990 Gazette 1990/28)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB IT LI LU NL SE

(30) Priority: 08.06.1989 AU 19890004610

(71) Applicant: ICI AUSTRALIA OPERATIONS PROPRIETARY LIMITED
Melbourne Victoria 3001 (AU)

(72) Inventors:
  • MAINWARING, David, Edward
    North Melbourne, VIC 3051 (AU)
  • HARDING, Ian, Henry
    Greensborough, VIC 3088 (AU)
  • SANCIOLO, Peter
    Reservoir, VIC 3073 (AU)

(74) Representative: Walmsley, David Arthur Gregson, et al 
Intellectual Property Department ICI Chemicals & Polymers Ltd P.O. Box 11 The Heath
Runcorn Cheshire WA7 4QE
Runcorn Cheshire WA7 4QE (GB)

   


(54) REMOVAL OF CONTAMINANTS