(19)

(11)

EP 0 802 971 A1

(12)

(43) Date of publication: 29.10.1997 Bulletin 1997/44 (21) Application number: 96900948.0 (22) Date of filing: 04.01.1996

(51) International Patent Classification (IPC):  C11D 3/ 00( . ) C11D 17/ 00( . ) C11D 3/ 37( . ) (86) International application number: PCT/EP1996/000123 (87) International publication number: WO 1996/021720 (18.07.1996 Gazette 1996/33)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 12.01.1995 EP 19950300175 (71) Applicants: UNILEVER N.V. 3013 AL Rotterdam (NL) UNILEVER PLC London EC4P 4BQ (GB)	(72) Inventors: BLOKZIJL, Wilfried NL-3063 KL Rotterdam (NL) VEERMAN, Simon NL-3133 AT Vlaardingen (NL) (74) Representative: Rosen Jacobson, Frans Lucas M., et al  Unilever N.V., Patent Division, P.O. Box 137 3130 AC Vlaardingen 3130 AC Vlaardingen (NL)