(19)
(11) EP 1 273 570 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
21.08.2013 Bulletin 2013/34

(45) Mention of the grant of the patent:
17.07.2013 Bulletin 2013/29

(21) Application number: 02716327.8

(22) Date of filing: 22.01.2002
(51) International Patent Classification (IPC): 
C07C 315/04(2006.01)
 C07C 317/22(2006.01)
(86) International application number:
PCT/JP2002/000410
(87) International publication number:
WO 2002/057221 (25.07.2002 Gazette 2002/30)

(54)

PROCESS FOR PRODUCING DIPHENYL SULFONE COMPOUND

VERFAHREN ZUR HERSTELLUNG EINER DIPHENYLSULPHON-VERBINDUNG

PROCEDE DE PRODUCTION D'UN COMPOSE DE DIPHENYLSULFONE

(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 22.01.2001 JP 2001013638
23.03.2001 JP 2001084218
05.04.2001 JP 2001107548

(43) Date of publication of application:
08.01.2003 Bulletin 2003/02

(60) Divisional application:
08004468.8 / 1930318

(73) Proprietors:
  • NIPPON SODA CO., LTD.
    Chiyoda-ku, Tokyo 100-8165 (JP)
  • NISSO FINE CO., LTD.
    Chuo-ku Tokyo 103-8422 (JP)

(72) Inventors:
  • KATSUURA, Kiyoshi
    Odawara-shi, Kanagawa 250-028 (JP)
  • HIDAKA, Tomoya
    Ichihara-shi, Chiba 290-0045 (JP)
  • TAKASHINA, Yutaka
    Kitaibaraki-shi, Ibaraki 319-1541 (JP)
  • OHNUKI, Yasuo
    Kitaibaraki-shi, Ibaraki 319-1541 (JP)

(74) Representative: Wibbelmann, Jobst 
Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2
81541 München
81541 München (DE)


(56) References cited: : 
WO-A1-91/11433
JP-A- 11 124 362
JP-A- 2001 011 001
 JP-A- 3 258 760
JP-A- 60 056 949
US-A- 5 414 149
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).