(19)

(11)

EP 0 550 695 A1

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(43) Date of publication: 14.07.1993 Bulletin 1993/28 (21) Application number: 91919868.0 (22) Date of filing: 25.09.1991

(51) International Patent Classification (IPC):  C11D 1/ 52( . ) C11D 3/ 32( . ) C11D 1/ 14( . ) C11D 1/ 72( . ) C11D 1/ 66( . ) C11D 3/ 386( . ) C11D 1/ 29( . ) (86) International application number: PCT/US1991/007028 (87) International publication number: WO 1992/006154 (16.04.1992 Gazette 1992/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 28.09.1990 US 19900590614 14.06.1991 US 19910715170 06.09.1991 US 19910755904 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventors: MAO, Mark, Hsiang-Kuen Cincinnati, OH 45241 (US) COOK, Thomas, Edward Cincinnati, OH 45223 (US) PANANDIKER, Rajan, Keshav Cincinnati, OH 45215 (US) WOLFF, Ann, Margaret Cincinnati, OH 45247 (US) (74) Representative: Canonici, Jean-Jacques, et al  Procter & Gamble European Technical Center N.V. Temselaan 100 B-1853 Strombeek-Bever B-1853 Strombeek-Bever (BE)