24/06/2005 - Controller General of Patents, Designs, and Trade Marks

(12) PATENT APPLICATION PUBLICATION
(19)
INDIA (21) Application No: 609/MUMNP/2004 A
(22) Date of filing of Application : 28/10/2004
(54) Title of the invention:
(51) International Classification: C 23 C 18/16 (71)
(31) Priority Document No. : 10240350.3
(32) Priority Date : 28/08/2002
(33) Name of priority country : GERMANY
(86) International Application : PCT/EP03/009030
No. and Filing Date : 14/08/2003
(87) International :
Publication No. WO04/020698 A1
(61)
(62)
Patent of addition to
Application No. : NIL
Filed on N.A.
Divisional to
Application No. : NIL
Filed on : N.A.
(57) Abstract : In regenerating an electroless metal
plating bath by electrodialysis, it has been found that the
metal of the metal plating bath deposits in the electrolysis
arrangement. To overcome this problem, an improvement
to prior art regenerating devices is suggested, said
improvement consisting in providing main cation
exchangers for removing ions of this metal from a
concentrate fluid. The main cation exchangers are coupled
to the concentrate compartments of the electrolysis
arrangement in such a manner that the concentrate fluid
flowing through the concentrate compartments is allowed
to pass through the main cation exchangers and to be
recirculated back into the concentrate compartments.
Total Pages : 38.
(43) Publication Date: 24/06/2005
DEVICE AND METHOD FOR REGENERATING AN
ELECTROLESS METAL PLATING BATH.
(72)
Name of the Applicant:
ATOTECH DEUTSCHLAND GMBH
Address of the Applicant:
ERASMUSSTRASSE 20,
10553 BERLIN DEUTSCHLAND,
GERMANY.
Name of the Inventors:
1. HEYDECKE JENS
2. MURANUSHI MASANORI
( Figure: 02 )
The Patent Office Journal 24.06.2005 17940