(19)
(11) EP 0 329 694 A1

(12)

(43) Date of publication:
30.08.1989 Bulletin 1989/35

(21) Application number: 87907450.0

(22) Date of filing: 27.10.1987
(51) International Patent Classification (IPC): 
D21B 1/ 02( . )
D21B 1/ 14( . )
D21B 1/ 04( . )
(86) International application number:
PCT/SE1987/000498
(87) International publication number:
WO 1988/003581 (19.05.1988 Gazette 1988/11)
(84) Designated Contracting States:
AT DE FR GB SE

(30) Priority: 06.11.1986 SE 19860004769

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

(72) Inventors:
  • BYSTEDT, H., S., Ingemar
    S-83 43 Täby (SE)
  • SEHLIN, Jan-Olof, Gunnar
    S-852 54 Sundsvall (SE)

(74) Representative: Illum, Leif-Otto 
Svenska Cellulosa Aktiebolaget SCA Kungsgatan 33
S-111 56 Stockholm
S-111 56 Stockholm (SE)

   


(54) METHOD OF MAKING MECHANICAL PULP