(19)

(11)

EP 0 728 187 A1

(12)

(43) Date of publication: 28.08.1996 Bulletin 1996/35 (21) Application number: 95900225.0 (22) Date of filing: 09.11.1994

(51) International Patent Classification (IPC):  C11D 3/ 42( . ) C11D 11/ 00( . ) C11D 10/ 02( . ) C11D 17/ 06( . ) (86) International application number: PCT/GB1994/002458 (87) International publication number: WO 1995/013358 (18.05.1995 Gazette 1995/21)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 11.11.1993 GB 19930023250 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventor: WILSON, Janette Cheshire CW7 2BS (GB) (74) Representative: Fransella, Mary Evelyn, et al  Unilever PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)