(19)

(11)

EP 0 873 393 A1

(12)

(43) Date of publication: 28.10.1998 Bulletin 1998/44 (21) Application number: 96937246.0 (22) Date of filing: 23.10.1996

(51) International Patent Classification (IPC):  C11D 3/ 06( . ) C11D 7/ 16( . ) C11D 7/ 06( . ) C11D 17/ 00( . ) (86) International application number: PCT/EP1996/004658 (87) International publication number: WO 1997/018292 (22.05.1997 Gazette 1997/22)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 13.11.1995 EP 19950203080 (71) Applicants: UNILEVER N.V. 3013 AL Rotterdam (NL) UNILEVER PLC London EC4P 4BQ (GB)	(72) Inventors: VAN DEN BROM, Guido, Clemens NL-3603 AN Maarssen (NL) CONNOTTE, Hendrik, Johannes, J. NL-3603 AN Maarssen (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)