EP 0497671 B1 19950510 - Method of refining a paper pulp.
Title (en)
Method of refining a paper pulp.
Title (de)
Verfahren zur Raffinierung einer Fasersuspension.
Title (fr)
Nouveau procédé de raffinage de la pâte à papier.
Publication
Application
Priority
FR 9101108 A 19910131
Abstract (en)
[origin: EP0497671A1] Improvement to the processes for refining paper pulp, in which a colloidal silica sol is mixed with the paper pulp to be refined.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Citation (examination)
WO 8701746 A1 19870326 - SCOTT PAPER CO [US]
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0497671 A1 19920805; EP 0497671 B1 19950510; CA 2060395 A1 19920801; DE 69202346 D1 19950614; DE 69202346 T2 19950928; FI 920395 A0 19920129; FI 920395 A 19920801; FI 98078 B 19961231; FI 98078 C 19970410; FR 2672315 A1 19920807; FR 2672315 B1 19960607; NO 179459 B 19960701; NO 179459 C 19961009; NO 920405 D0 19920130; NO 920405 L 19920803; US 5225041 A 19930706
DOCDB simple family (application)
EP 92400190 A 19920124; CA 2060395 A 19920130; DE 69202346 T 19920124; FI 920395 A 19920129; FR 9101108 A 19910131; NO 920405 A 19920130; US 82876092 A 19920131