EP 1999314 A1 20081210 - METHOD FOR PRODUCING PAPER, PAPERBOARD AND CARDBOARD HAVING HIGH DRY STRENGTH
Title (en)
METHOD FOR PRODUCING PAPER, PAPERBOARD AND CARDBOARD HAVING HIGH DRY STRENGTH
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER, PAPPE UND KARTON MIT HOHER TROCKENFESTIGKEIT
Title (fr)
PROCÉDÉ DE FABRICATION DE PAPIER ET DE CARTON PRÉSENTANT UNE GRANDE RÉSISTANCE À SEC
Publication
Application
Priority
- EP 2007052238 W 20070309
- EP 06111267 A 20060316
- EP 07712497 A 20070309
Abstract (en)
[origin: WO2007104716A1] The invention relates to a method for producing paper, paperboard and cardboard having high dry strength by adding a vinylamine entity-containing polymer and lignosulfonic acid and/or a lignosulfonate to a paper pulp, dewatering the pulp and drying the paper products.
IPC 8 full level
D21H 17/43 (2006.01); D21H 17/23 (2006.01); D21H 17/42 (2006.01); D21H 21/18 (2006.01)
CPC (source: EP US)
D21H 21/18 (2013.01 - EP US); D21H 17/23 (2013.01 - EP US); D21H 17/42 (2013.01 - EP US); D21H 17/43 (2013.01 - EP US)
Citation (search report)
See references of WO 2007104716A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007104716 A1 20070920; CA 2644348 A1 20070920; CA 2644348 C 20140610; CN 101405457 A 20090408; CN 101405457 B 20110817; EP 1999314 A1 20081210; EP 1999314 B1 20170222; ES 2625622 T3 20170720; JP 2009530504 A 20090827; JP 5156650 B2 20130306; PT 1999314 T 20170526; US 2010108279 A1 20100506; US 7922867 B2 20110412
DOCDB simple family (application)
EP 2007052238 W 20070309; CA 2644348 A 20070309; CN 200780009235 A 20070309; EP 07712497 A 20070309; ES 07712497 T 20070309; JP 2008558792 A 20070309; PT 07712497 T 20070309; US 28235807 A 20070309