(19)

(11)

EP 0 828 817 A1

(12)

(43) Date of publication: 18.03.1998 Bulletin 1998/12 (21) Application number: 96916117.0 (22) Date of filing: 14.05.1996

(51) International Patent Classification (IPC):  C11D 3/ 02( . ) C11D 17/ 06( . ) (86) International application number: PCT/EP1996/002133 (87) International publication number: WO 1996/037599 (28.11.1996 Gazette 1996/52)

(84) Designated Contracting States: BE DE ES FR GB IT (30) Priority: 26.05.1995 GB 19950010695 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: EUSER, Huig NL-3135 GW Vlaardingen (NL) KLEIN-VELDERMAN, Johan, Cristiaan NL-3011 XZ Rotterdam (NL) (74) Representative: Mole, Peter Geoffrey, et al  UNILEVER PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)