(19)

(11)

EP 0 646 133 A1

(12)

(43) Date of publication: 05.04.1995 Bulletin 1995/14 (21) Application number: 92914652.0 (22) Date of filing: 07.08.1992

(51) International Patent Classification (IPC):  A23L 1/ 0528( . ) A23L 1/ 054( . ) A23L 1/ 0532( . ) C08B 37/ 00( . ) (86) International application number: PCT/US1992/006591 (87) International publication number: WO 1993/002571 (18.02.1993 Gazette 1993/05)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (30) Priority: 08.08.1991 US 19910742136 (71) Applicant: FMC CORPORATION Philadelphia, PA 19103 (US)	(72) Inventors: SNOW, William, C. Rockland, ME 04841 (US) RENN, Donald, W. Glen Cove, ME 04846 (US) (74) Representative: Hamilton, Raymond  FMC Corporation (UK) Limited Process Additives Division Tenax Road Trafford Park Manchester M17 1WT Manchester M17 1WT (GB)