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EP 0 946 091 A1

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(43) Date of publication: 06.10.1999 Bulletin 1999/40 (21) Application number: 97913702.0 (22) Date of filing: 28.10.1997

(51) International Patent Classification (IPC):  C11D 1/ 835( . ) C11D 1/ 62( . ) C11D 1/ 722( . ) C11D 3/ 48( . ) C11D 1/ 72( . ) (86) International application number: PCT/US1997/018873 (87) International publication number: WO 1998/024314 (11.06.1998 Gazette 1998/23)

(84) Designated Contracting States: BE DE ES FR GB IT NL (30) Priority: 06.12.1996 GB 19960025396 (71) Applicant: Reckitt & Colman Inc. Wayne, New Jersey 07474-0943 (US)

(72) Inventors: LOVE, Michael, David Parsippany, NJ 07054 (US) BOGART, Robert, William Riverdale, NJ 07675 (US) RYPKEMA, Ralph, Edward Lodi, NJ 07644 (US) TARASCHI, Frederic, Albert Skillman, NJ 08558 (US) LU, Robert, Zhong Hasbrouck Heights, NJ 07604 (US) SMIALOWICZ, Dennis, Thomas Waldwick, NJ 07463 (US) NANAVATI, Narendra, Vrajlal Maywood, NJ 07607 (US) (74) Representative: Dickson, Elizabeth Anne, et al  Reckitt & Colman plc, Group Patents Department, Dansom Lane Hull HU8 7DS Hull HU8 7DS (GB)