(19)

(11)

EP 0 756 619 A1

(12)

(43) Date of publication: 05.02.1997 Bulletin 1997/06 (21) Application number: 95916433.0 (22) Date of filing: 17.04.1995

(51) International Patent Classification (IPC):  C11D 1/ 83( . ) C11D 3/ 39( . ) C11D 1/ 14( . ) C11D 1/ 66( . ) C11D 3/ 386( . ) C12N 9/ 30( . ) C11D 1/ 29( . ) C11D 1/ 72( . ) (86) International application number: PCT/US1995/004710 (87) International publication number: WO 1995/029224 (02.11.1995 Gazette 1995/47)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE (30) Priority: 22.04.1994 EP 19940302878 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)

(72) Inventors: BETTIOL, Jean-Luc Philippe Benton Newcastle-upon-Tyne NE12 9PH (GB) MOSS, Michael, Alan, John Prudhoe Northumberland NE 42 5BB (GB) THOEN, Christaan, Arthur, Jacques, Kamiel North Shields Tyne & Wear NE30 3LT (GB) BOYER, Stanton, Lane Fairfield, OH 45014 (US) SHOWELL, Michael, Stanford Cincinnati, OH 45224 (US) JEFFREY, Janice Blaydon Newcastle-upon-Tyne NE21 4QA (GB) (74) Representative: Engisch, Gautier, et al  Procter & Gamble European Technical Center N.V. Temselaan 100 1853 Strombeek-Bever 1853 Strombeek-Bever (BE)