(19)

(11)

EP 0 942 958 A1

(12)

(43) Date of publication: 22.09.1999 Bulletin 1999/38 (21) Application number: 97950085.0 (22) Date of filing: 29.10.1997

(51) International Patent Classification (IPC):  C11D 11/ 00( . ) C11D 17/ 06( . ) (86) International application number: PCT/EP1997/006073 (87) International publication number: WO 1998/024876 (11.06.1998 Gazette 1998/23)

(84) Designated Contracting States: BE DE ES FR GB IT (30) Priority: 02.12.1996 GB 19960025066 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: VAN LARE, Cornelis, Elisabeth, Johannes NL-6211 BZ Maastricht (NL) VERSCHELLING, Gilbert, Martin NL-3137 WL Vlaardingen (NL) (74) Representative: Elliott, Peter William, et al  Unilever plc Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)