(19)

(11)

EP 0 885 278 A1

(12)

(43) Date of publication: 23.12.1998 Bulletin 1998/52 (21) Application number: 97904366.0 (22) Date of filing: 28.01.1997

(51) International Patent Classification (IPC):  C11D 1/ 65( . ) C11D 1/ 86( . ) C11D 1/ 04( . ) C11D 1/ 66( . ) C11D 1/ 835( . ) C11D 3/ 20( . ) C11D 1/ 62( . ) (86) International application number: PCT/EP1997/000452 (87) International publication number: WO 1997/029171 (14.08.1997 Gazette 1997/35)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 09.02.1996 GB 19960002619 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: GRIEVESON, Ailsa Pauline Hilary Wirral, Merseyside L60 6TG (GB) WHALEY, Christopher Wirral, Merseyside L63 5NS (GB) (74) Representative: Mole, Peter Geoffrey  UNILEVER PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)