(19)

(11)

EP 0 799 295 A1

(12)

(43) Date of publication: 08.10.1997 Bulletin 1997/41 (21) Application number: 95941626.0 (22) Date of filing: 22.11.1995

(51) International Patent Classification (IPC):  C11D 1/ 83( . ) C11D 1/ 14( . ) C11D 1/ 72( . ) C11D 11/ 00( . ) C11D 1/ 22( . ) (86) International application number: PCT/EP1995/004639 (87) International publication number: WO 1996/019556 (27.06.1996 Gazette 1996/29)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 22.12.1994 US 19940362075 22.12.1994 US 19940362084 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: HSU, Feng-Lung, Gordon Tenafly, NJ 07670 (US) PFLUGFELDER, Mark, Eric Bergenfield, NJ 07621 (US) IRWIN, Charles, Fraser Flemington, NJ 08822 (US) SHEEHAN, John, Gerard Lyndhurst, NJ 07071 (US) (74) Representative: Mole, Peter Geoffrey  UNILEVER PLC Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)