(19)
(11) EP 1 893 535 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:
23.12.2015 Bulletin 2015/52

(45) Mention of the grant of the patent:
11.11.2015 Bulletin 2015/46

(21) Application number: 06764431.0

(22) Date of filing: 15.06.2006
(51) International Patent Classification (IPC): 
C02F 1/28(2006.01)
C02F 103/06(2006.01)
 B01D 39/06(2006.01)
C02F 101/10(2006.01)
(86) International application number:
PCT/FI2006/000205
(87) International publication number:
WO 2006/134215 (21.12.2006 Gazette 2006/51)

(54)

METHOD FOR PREPARING A FILTER MATERIAL COMPRISING CALCIUM HYDROXIDE

VERFAHREN ZUR HERSTELLUNG EINES FILTERMATERIALS ENTHALTEND CALCIUMHYDROXID

PRÉPARATION D'UN MATÉRIAU DE FILTRATION COMPRENANT DE L'HYDROXIDE DE CALCIUM

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 17.06.2005 FI 20050653

(43) Date of publication of application:
05.03.2008 Bulletin 2008/10

(73) Proprietor: Luonnonvarakeskus
00790 Helsinki (FI)

(72) Inventors:
  • PESONEN, Liisa
    FI-03100 Nummela (FI)
  • PASILA, Antti
    FI-46960 Muhniemi (FI)
  • TEYE, Frederick
    FI-02920 Espoo (FI)

(74) Representative: Papula Oy 
P.O. Box 981
00101 Helsinki
00101 Helsinki (FI)


(56) References cited: : 
EP-A1- 0 699 475
DE-A1- 4 106 516
JP-A- 2001 047 037
JP-A- 2005 103 522
 WO-A1-99/24365
JP-A- 9 308 877
JP-A- 2004 121 908
   
  • DATABASE WPI Week 198826 21 May 1988 (1988-05-21) Thomson Scientific, London, GB; AN 1988-179404 XP002694111, & JP 63 116798 A (ASAHI CHEM IND CO LTD) 21 May 1988 (1988-05-21)
  • DATABASE WPI Week 200433, Derwent Publications Ltd., London, GB; Class D16, AN 2004-352588, XP003005370 & JP 2004 121908 A (AISIN TAKAOKA KK) 22 April 2004
   
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).