EP 2622131 A1 20130807 - METHOD FOR IMPROVING PAPERMAKING OR BOARD MAKING PROCESS, USE OF A POLYSACCHARIDE AND PAPER
Title (en)
METHOD FOR IMPROVING PAPERMAKING OR BOARD MAKING PROCESS, USE OF A POLYSACCHARIDE AND PAPER
Title (de)
VERFAHREN ZUR VERBESSERUNG EINES PAPIER- ODER KARTONHERSTELLUNGSVERFAHRENS, VERWENDUNG EINES POLYSACCHARIDS UND PAPIER
Title (fr)
MÉTHODE POUR AMÉLIORER UN PROCÉDÉ DE FABRICATION DE PAPIER OU DE CARTON, UTILISATION D'UN POLYSACCHARIDE, ET PAPIER
Publication
Application
Priority
- US 38865810 P 20101001
- FI 20106021 A 20101001
- FI 2011050843 W 20110930
Abstract (en)
[origin: WO2012042115A1] The invention relates to a method for improving runnability of a wet paper web or the like. The method comprises adding to a stock of fibres a cationic polymer, forming a wet paper web from the stock of fibres, and applying an anionic polymer solution to the wet paper web. The invention relates also to a paper produced by using the method and to a use of a solution comprising an anionic polymer.
IPC 8 full level
D21H 17/24 (2006.01)
CPC (source: EP FI US)
D21H 17/20 (2013.01 - FI); D21H 17/24 (2013.01 - EP US); D21H 17/42 (2013.01 - EP US); D21H 21/18 (2013.01 - FI); D21H 17/25 (2013.01 - EP US); D21H 17/32 (2013.01 - EP US); D21H 17/44 (2013.01 - EP US); D21H 23/50 (2013.01 - EP US)
Citation (search report)
See references of WO 2012042116A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012042115 A1 20120405; BR 112013007244 A2 20160614; BR 112013007876 A2 20190827; BR 112013007876 B1 20201229; CA 2813148 A1 20120405; CA 2813148 C 20180206; CN 103140626 A 20130605; CN 103201426 A 20130710; CN 103201426 B 20160511; EP 2622131 A1 20130807; EP 2622131 B1 20200226; EP 2622132 A1 20130807; EP 2622132 B1 20180404; ES 2674881 T3 20180704; ES 2791997 T3 20201106; FI 125713 B 20160115; FI 20106021 A0 20101001; FI 20106021 A 20120402; FI 20106021 L 20120402; PT 2622132 T 20180703; US 2013299109 A1 20131114; WO 2012042116 A1 20120405
DOCDB simple family (application)
FI 2011050842 W 20110930; BR 112013007244 A 20110930; BR 112013007876 A 20110930; CA 2813148 A 20110930; CN 201180047192 A 20110930; CN 201180047677 A 20110930; EP 11770475 A 20110930; EP 11770850 A 20110930; ES 11770475 T 20110930; ES 11770850 T 20110930; FI 20106021 A 20101001; FI 2011050843 W 20110930; PT 11770850 T 20110930; US 201113876325 A 20110930