(19)

(11)

EP 0 649 462 A1

(12)

(43) Date of publication: 26.04.1995 Bulletin 1995/17 (21) Application number: 93915738.0 (22) Date of filing: 29.06.1993

(51) International Patent Classification (IPC):  C11D 3/ 37( . ) C11D 17/ 00( . ) (86) International application number: PCT/EP1993/001671 (87) International publication number: WO 1994/001524 (20.01.1994 Gazette 1994/03)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL (30) Priority: 08.07.1992 EP 19920202079 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. NL-3013 AL Rotterdam (NL)	(72) Inventor: HOUGHTON, Mark, Phillip NL-3053 JC Rotterdam (NL) (74) Representative: Kan, Jacob Hendrik, Dr., et al  Unilever N.V. Patent Division P.O. Box 137 NL-3130 AC Vlaardingen NL-3130 AC Vlaardingen (NL)