(19)

(11)

EP 0 724 624 A1

(12)

(43) Date of publication: 07.08.1996 Bulletin 1996/32 (21) Application number: 94930946.0 (22) Date of filing: 12.10.1994

(51) International Patent Classification (IPC):  C11D 1/ 62( . ) C11D 3/ 386( . ) C11D 3/ 00( . ) (86) International application number: PCT/EP1994/003362 (87) International publication number: WO 1995/011292 (27.04.1995 Gazette 1995/18)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 22.10.1993 GB 19930021799 04.11.1993 GB 19930022773 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: FRANKLIN, Kevin Ronald Wirral, Merseyside L47 0LQ (GB) NEILLIE, William Frederick Soutar Wirral, Merseyside L48 2JT (GB) (74) Representative: Mole, Peter Geoffrey  UNILEVER PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)