(19)

(11)

EP 0 707 631 A1

(12)

(43) Date of publication: 24.04.1996 Bulletin 1996/17 (21) Application number: 94920970.0 (22) Date of filing: 05.07.1994

(51) International Patent Classification (IPC):  C11D 9/ 04( . ) C11D 9/ 26( . ) C11D 10/ 04( . ) C11D 1/ 02( . ) C11D 9/ 22( . ) C11D 9/ 48( . ) C11D 17/ 00( . ) C11D 1/ 66( . ) (86) International application number: PCT/EP1994/002191 (87) International publication number: WO 1995/002035 (19.01.1995 Gazette 1995/04)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 05.07.1993 GB 19930013859 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. NL-3013 AL Rotterdam (NL)	(72) Inventors: CHAMBERS, John, George Wirral Merseyside L62 2BS (GB) IRLAM, Geoffrey Wirral Merseyside L43 2LB (GB) (74) Representative: Bryant, Tracey, et al  Unilever PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)