(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)
7
:
C08G
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