(19)
(11) EP 0 220 266 A1

(12)

(43) Date of publication:
06.05.1987 Bulletin 1987/19

(21) Application number: 86902921.0

(22) Date of filing: 08.04.1986
(51) International Patent Classification (IPC): 
D21B 1/ 12( . )
(86) International application number:
PCT/SE1986/000159
(87) International publication number:
WO 1986/006769 (20.11.1986 Gazette 1986/25)
(84) Designated Contracting States:
AT DE FR GB SE

(30) Priority: 06.05.1985 SE 19850002210

(71) Applicant: SUNDS DEFIBRATOR AKTIEBOLAG
S-851 94 Sundsvall (SE)

(72) Inventors:
  • SANDSTRÖM, Nils, Roland
    S-186 00 Vallentuna (SE)
  • WALDENSTEN, Jan, Otto
    S-183 38 Täby (SE)

   


(54) MANUFACTURE OF MECHANICAL PULP