EP 1244851 A1 20021002 - METHOD TO IMPROVE THE OPACITY OF MECHANICAL PULP BY USING ALIPHATIC PEROXYACIDS AND USE OF PEROXYACIDS TO IMPROVE OPACITY
Title (en)
METHOD TO IMPROVE THE OPACITY OF MECHANICAL PULP BY USING ALIPHATIC PEROXYACIDS AND USE OF PEROXYACIDS TO IMPROVE OPACITY
Title (de)
VERFAHREN ZUR VERBESSERUNG DER OPAZITÄT VON MECHANISCHER PULPE DURCH DIE ANWENDUNG VON ALIPHATISCHEN PEROXYSÄUREN UND VERWENDUNG VON PEROXYSÄUREN ZUR VERBESSERUNG DER OPAZITÄT
Title (fr)
PROCEDE PERMETTANT D'AMELIORER L'OPACITE DE PATE MECANIQUE AU MOYEN DE PEROXYACIDES ALIPHATIQUES
Publication
Application
Priority
- FI 0000532 W 20000614
- FI 991366 A 19990615
Abstract (en)
[origin: WO0077301A1] The invention relates to a method for treating mechanical pulp so that aliphatic percarboxylic acid in the amount of 0.5 - 5 kg/ton of pulp is added to the pulp to improve the opacity.
IPC 1-7
IPC 8 full level
D21C 9/16 (2006.01); D21H 11/16 (2006.01)
CPC (source: EP)
D21C 9/166 (2013.01); D21H 11/16 (2013.01)
Citation (search report)
See references of WO 0077301A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0077301 A1 20001221; AT E239828 T1 20030515; AU 5224500 A 20010102; CA 2374673 A1 20001221; DE 60002613 D1 20030612; DE 60002613 T2 20031127; EP 1244851 A1 20021002; EP 1244851 B1 20030507; ES 2193085 T3 20031101; FI 107545 B 20010831; FI 991366 A0 19990615; FI 991366 A 20001216; NO 20016083 D0 20011213; NO 20016083 L 20020214
DOCDB simple family (application)
FI 0000532 W 20000614; AT 00936926 T 20000614; AU 5224500 A 20000614; CA 2374673 A 20000614; DE 60002613 T 20000614; EP 00936926 A 20000614; ES 00936926 T 20000614; FI 991366 A 19990615; NO 20016083 A 20011213