(19)

(11)

EP 0 793 711 A1

(12)

(43) Date of publication: 10.09.1997 Bulletin 1997/37 (21) Application number: 95940201.0 (22) Date of filing: 16.11.1995

(51) International Patent Classification (IPC):  C11D 3/ 36( . ) C11D 7/ 06( . ) C11D 3/ 37( . ) (86) International application number: PCT/EP1995/004537 (87) International publication number: WO 1996/016159 (30.05.1996 Gazette 1996/25)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 21.11.1994 GB 19940023495 (71) Applicants: UNILEVER N.V. 3013 AL Rotterdam (NL) UNILEVER PLC London EC4P 4BQ (GB)	(72) Inventors: GEERLINGS, Detlef, Heiko, Michael NL-3607 LA Maarssenbroek (NL) JAKOBS, Ruben, Emiel, Marco, Julius NL-4101 BN Culemborg (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)