(19)

(11)

EP 0 929 660 A1

(12)

(43) Date of publication: 21.07.1999 Bulletin 1999/29 (21) Application number: 97941102.0 (22) Date of filing: 22.09.1997

(51) International Patent Classification (IPC):  C12N 1/ 04( . ) C12N 11/ 04( . ) C12N 1/ 20( . ) C12N 11/ 08( . ) (86) International application number: PCT/GB1997/002566 (87) International publication number: WO 1998/013471 (02.04.1998 Gazette 1998/13)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 24.09.1996 GB 19960019893 (71) Applicant: ZENECA LIMITED London W1Y 6LN (GB)

(72) Inventors: MURRAY, Donna, Christine, Zeneca Agrochemicals Bracknell, Berkshire R42 6ET (GB) RODHAM, David, Kirk, Zeneca Agrochemicals Bracknell, Berkshire RG42 6ET (GB) D'ALWIS, Bernard, Zeneca Agrochemicals Haslemere, Surrey GU27 3JE (GB) CANTWELL, John, Burnett, Zeneca Specialties Blackley, Manchester M9 8ZS (GB) RHODES, David, John, Zeneca Agrochemicals Haslemere, Surrey GU27 3JE (GB) BRADLEY, Sandra, Samira, Zeneca Agrochemicals Bracknell, Berkshire RG42 6ET (GB) (74) Representative: Kent, Lindsey Ruth, et al  ZENECA Agrochemicals Intellectual Property Dept., Jealott's Hill Research Station, P.O. Box 3538 Bracknell, Berkshire RG42 6YA Bracknell, Berkshire RG42 6YA (GB)