(19)

(11)

EP 0 749 470 A1

(12)

(43) Date of publication: 27.12.1996 Bulletin 1996/52 (21) Application number: 95913071.0 (22) Date of filing: 08.03.1995

(51) International Patent Classification (IPC):  C11D 1/ 825( . ) C11D 1/ 72( . ) C11D 3/ 37( . ) (86) International application number: PCT/EP1995/000874 (87) International publication number: WO 1995/024461 (14.09.1995 Gazette 1995/39)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 11.03.1994 GB 19940004821 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: AKKERMANS, Johannes, Hendrikus, Maria NL-3137 EP Vlaardingen (NL) VAN LARE, Cornelis, Elisabeth, Johannes NL-3138 PB Vlaardingen (NL) VERSCHELLING, Gilbert, Martin NL-3137 WL Vlaardingen (NL) (74) Representative: Mole, Peter Geoffrey, et al  UNILEVER PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)