(19)
(11) EP 1 196 473 A1

(12)

(43) Date of publication:
17.04.2002 Bulletin 2002/16

(21) Application number: 00945237.6

(22) Date of filing: 07.07.2000
(51) International Patent Classification (IPC)7C08G 65/26, C08G 65/10, B01J 27/26
(86) International application number:
PCT/US0018/625
(87) International publication number:
WO 0104/180 (18.01.2001 Gazette 2001/03)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 09.07.1999 US 143085 P

(71) Applicant: THE DOW CHEMICAL COMPANY
Midland, Michigan 48674 (US)

(72) Inventor:
  • WEHMEYER, Richard, M.
    Lake Jackson, TX 77566 (US)

(74) Representative: Burford, Anthony Frederick et al
W.H. Beck, Greener & Co.7 Stone BuildingsLincoln's Inn
London WC2A 3SZ
London WC2A 3SZ (GB)

   


(54) METHOD FOR PREPARING METAL CYANIDE CATALYSTS USING POLYCARBOXYLIC ACIDS