(19)

(11)

EP 0 808 355 A1

(12)

(43) Date of publication: 26.11.1997 Bulletin 1997/48 (21) Application number: 96901325.0 (22) Date of filing: 16.01.1996

(51) International Patent Classification (IPC):  C11D 1/ 83( . ) C11D 1/ 14( . ) C11D 1/ 72( . ) C11D 1/ 88( . ) C11D 1/ 92( . ) C11D 1/ 94( . ) C11D 1/ 29( . ) C11D 1/ 75( . ) C11D 1/ 90( . ) (86) International application number: PCT/EP1996/000266 (87) International publication number: WO 1996/024655 (15.08.1996 Gazette 1996/37)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 09.02.1995 GB 19950002494 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: BOLZONI, Giuseppe I-20070 San Rocco Al Porto (IT) BUTTERWORTH, Robert, Michael Merseyside L63 5PS (GB) (74) Representative: Elliott, Peter William  Unilever plc Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)