(19)
(11)
EP 0 931 182 A1
(12)
(43)
Date of publication:
28.07.1999
Bulletin 1999/30
(21)
Application number:
97942654.0
(22)
Date of filing:
23.09.1997
(51)
International Patent Classification (IPC):
B22F
3/
23
( . )
C25C
3/
06
( . )
C25C
7/
02
( . )
C22C
1/
04
( . )
C25C
3/
12
( . )
(86)
International application number:
PCT/US1997/016865
(87)
International publication number:
WO 1998/012363
(
26.03.1998
Gazette 1998/12)
(84)
Designated Contracting States:
DE ES FR GB IT NL
(30)
Priority:
23.09.1996
WO 1996US15176
(71)
Applicant:
MOLTECH Invent S.A.
2320 Luxembourg (LU)
(72)
Inventors:
SEKHAR, Jainagesh, A.
Cincinnati, OH 45208 (US)
DE NORA, Vittorio
Nassau (BS)
LIU, James, Jenq
Cincinnati, OH 45220 (US)
(74)
Representative:
Cronin, Brian Harold John, et al
c/o MOLTECH S.A. 9, Route de Troinex
1227 Carouge/GE
1227 Carouge/GE (CH)
(54)
ULTRASTABLE ANODES FOR ALUMINUM PRODUCTION CELLS