(19)

(11)

EP 0 848 748 A1

(12)

(43) Date of publication: 24.06.1998 Bulletin 1998/26 (21) Application number: 96927048.0 (22) Date of filing: 20.07.1996

(51) International Patent Classification (IPC):  C11D 1/ 62( . ) C11D 3/ 00( . ) C11D 1/ 645( . ) (86) International application number: PCT/EP1996/003248 (87) International publication number: WO 1997/008286 (06.03.1997 Gazette 1997/11)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 25.08.1995 GB 19950017433 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: KHAN-LODHI, Abid, Nadim Cheshire CH2 3HJ (GB) WHALEY, Christopher Wirral,Merseyside L63 5NS (GB) (74) Representative: Mole, Peter Geoffrey, et al  UNILEVER PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)