(19)
(11) EP 0 786 020 A1

(12)

(43) Date of publication:
30.07.1997 Bulletin 1997/31

(21) Application number: 94901664.0

(22) Date of filing: 23.11.1993
(51) International Patent Classification (IPC): 
C04B 41/ 50( . )
C25C 3/ 08( . )
C04B 41/ 52( . )
(86) International application number:
PCT/US1993/011380
(87) International publication number:
WO 1994/024337 (27.10.1994 Gazette 1994/24)
(84) Designated Contracting States:
DE ES FR GB IT NL

(30) Priority: 19.04.1993 WO 1993US03683

(71) Applicant: MOLTECH Invent S.A.
2320 Luxembourg (LU)

(72) Inventor:
  • SEKHAR, Jainagesh A.
    Cincinnati, OH 45221-0012 (US)

(74) Representative: Cronin, Brian Harold John 
c/o MOLTECH S.A. 9, Route de Troinex
1227 Carouge/GE
1227 Carouge/GE (CH)

   


(54) TREATED CARBON OR CARBON-BASED CATHODIC COMPONENTS OF ALUMINIUM PRODUCTION CELLS