(19)
(11)
EP 1 045 937 A1
(12)
(43)
Date of publication:
25.10.2000
Bulletin 2000/43
(21)
Application number:
98943914.6
(22)
Date of filing:
09.09.1998
(51)
International Patent Classification (IPC)
7
:
D21F
11/00
(86)
International application number:
PCT/FI9800/706
(87)
International publication number:
WO 9915/730
(
01.04.1999
Gazette 1999/13)
(84)
Designated Contracting States:
AT BE CH DE DK ES FI FR GB IT LI LU NL SE
(30)
Priority:
19.09.1997
US 59559 P
17.06.1998
US 98458
(71)
Applicant:
Ahlstrom Glassfibre OY
48601 Karhula (FI)
(72)
Inventors:
KAUKOPAASI, JanAhlstrom Paper Group
Via Stura, 98I-10075 Mathi Canavese (IT)
RÖKMAN, Kay
FIN-48601 Karhula (FI)
SABEL, H kanAhlstrom Glassfibre Oy
FIN-48601 Karhula (FI)
(74)
Representative:
HOFFMANN - EITLE
Patent- und RechtsanwälteArabellastrasse 4
81925 München
81925 München (DE)
(54)
FOAM PROCESS WEB MANUFACTURE OF FILTER OR OTHER PAPERS FROM MECHANICAL PULP