(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