(19)

(11)

EP 0 912 469 A1

(12)

(43) Date of publication: 06.05.1999 Bulletin 1999/18 (21) Application number: 97935027.0 (22) Date of filing: 18.07.1997

(51) International Patent Classification (IPC):  C07B 61/ 00( . ) C07C 205/ 58( . ) C40B 50/ 08( . ) C07B 63/ 00( . ) C07C 205/ 59( . ) (86) International application number: PCT/US1997/012694 (87) International publication number: WO 1998/003452 (29.01.1998 Gazette 1998/04)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 19.07.1996 US 19960022186P (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventor: PAN, Yong West Chester, OH 45069 (US) (74) Representative: Woof, Victoria, et al  Procter & Gamble (Health & Beauty Care) Limited, Lovett House, Lovett Road Staines, Middlesex TW18 3AZ Staines, Middlesex TW18 3AZ (GB)