(19)
(11) EP 0 937 026 A1

(12)

(43) Date of publication:
25.08.1999 Bulletin 1999/34

(21) Application number: 97944973.0

(22) Date of filing: 08.10.1997
(51) International Patent Classification (IPC): 
C07C 51/ 43( . )
(86) International application number:
PCT/GB1997/002774
(87) International publication number:
WO 1998/018749 (07.05.1998 Gazette 1998/18)
(84) Designated Contracting States:
BE DE ES FR GB IT NL

(30) Priority: 25.10.1996 GB 19960022250
25.10.1996 GB 19960022266
05.12.1996 US 19960032251P
05.12.1996 US 19960032127P

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington, DE 19810 (US)

(72) Inventors:
  • DONALDSON, Peter, Anthony
    Cleveland TS15 9RN (GB)
  • MILNE, Ian, Peter
    Cleveland TS18 3QH (GB)
  • HOLLINS, Andrew, Martin
    Cleveland TS9 6EP (GB)
  • USHER, Geoffrey, William
    Tyne & Wear NE25 9DS (GB)
  • GARDNER, Michael, William
    Cleveland TS10 1ER (GB)
  • WARD, Philip, Nigel
    County Durham DL1 5EN (GB)

(74) Representative: Jones, Alan John, et al 
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA
London, WC1A 2RA (GB)

   


(54) PRODUCTION OF AROMATIC CARBOXYLIC ACIDS