(19)

(11)

EP 0 663 942 A1

(12)

(43) Date of publication: 26.07.1995 Bulletin 1995/30 (21) Application number: 93921031.0 (22) Date of filing: 30.09.1993

(51) International Patent Classification (IPC):  C09K 5/ 04( . ) C10M 171/ 00( . ) C10M 105/ 38( . ) C10N 20/ 02( . ) (86) International application number: PCT/GB1993/002036 (87) International publication number: WO 1994/009096 (28.04.1994 Gazette 1994/10)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 09.10.1992 GB 19920021217 (71) Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC London SW1P 3JF (GB)	(72) Inventor: C0RR, Stuart Runcorn, Cheshire WA7 5BE (GB) (74) Representative: Oldroyd, Alan  Intellectual Property Department ICI Chemicals & Polymers Ltd P.O. Box 11 The Heath Runcorn Cheshire WA7 4QE Runcorn Cheshire WA7 4QE (GB)