(19)
(11) EP 1 699 974 A1

(12)

(43) Date of publication:
13.09.2006 Bulletin 2006/37

(21) Application number: 04805154.4

(22) Date of filing: 13.12.2004
(51) International Patent Classification (IPC): 
D21B 1/02(2006.01)
(86) International application number:
PCT/FI2004/000759
(87) International publication number:
WO 2005/056915 (23.06.2005 Gazette 2005/25)
(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 MC NL PL PT RO SE SI SK TR

(30) Priority: 11.12.2003 FI 20031818

(71) Applicant: VALTION TEKNILLINEN TUTKIMUSKESKUS
02150 Espoo (FI)

(72) Inventors:
  • PERE, Jaakko
    FI-01640 VANTAA (FI)
  • ELLMEN, Jouni
    FI-01360 VANTAA (FI)
  • VIIKARI, Liisa
    FI-00200 HELSINKI (FI)

(74) Representative: Knuth-Lehtola, Sisko Hillevi et al
Seppo Laine Oy, Itämerenkatu 3 B
00180 Helsinki
00180 Helsinki (FI)

   


(54) PROCESS FOR PREPARING MECHANICAL PULP