(19)
(11) EP 1 552 052 A1

(12)

(43) Date of publication:
13.07.2005 Bulletin 2005/28

(21) Application number: 03794378.4

(22) Date of filing: 21.08.2003
(51) International Patent Classification (IPC)7: D21B 1/02
(86) International application number:
PCT/SE2003/001296
(87) International publication number:
WO 2004/022842 (18.03.2004 Gazette 2004/12)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 06.09.2002 SE 0202629

(71) Applicant: Stora Enso Aktiebolag
791 80 Falun (SE)

(72) Inventors:
  • PENG, Frank
    S-663 41 HAMMARÖ (SE)
  • FERRITSIUS, Rita
    S-791 33 FALUN (SE)
  • ÄNGSAS, Ulf
    S-791 74 FALUN (SE)

(74) Representative: Johansson, Lars E. 
Hynell Patenttjänst ABPatron Carls väg 2
683 40 Hagfors/Uddeholm
683 40 Hagfors/Uddeholm (SE)

   


(54) A METHOD OF PRODUCING MECHANICAL PULP AND THE MECHANICAL PULP THUS PRODUCED