EP 1831459 A1 20070912 - METHOD FOR THE PRODUCTION OF PAPER, CARDBOARD AND CARD
Title (en)
METHOD FOR THE PRODUCTION OF PAPER, CARDBOARD AND CARD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER, PAPPE UND KARTON
Title (fr)
PROCEDE DE FABRICATION DE PAPIER, DE CARTON-PATE ET DE CARTON
Publication
Application
Priority
- EP 2005013631 W 20051217
- DE 102004063005 A 20041222
Abstract (en)
[origin: WO2006069660A1] A method for the production of paper, cardboard and card by adding a microparticle system consisting of a polymer retention agent having a molar mass M<SUB>w</SUB> of at least 2 million and a fine-part inorganic component in order to form a paper material having a material density of a 20 g/l maximum and by dewatering the paper material, wherein the paper material undergoes at least one shearing step prior to or after addition of the retention agent and wherein the retention agent is introduced in a dosed manner into the paper material in at least two places and the fine inorganic component is dosed prior to or after addition of the retention agent or between two dosing points for the retention agent.
IPC 8 full level
D21H 21/10 (2006.01)
CPC (source: EP US)
D21H 21/10 (2013.01 - EP US); D21H 17/375 (2013.01 - EP US); D21H 17/55 (2013.01 - EP US); D21H 17/56 (2013.01 - EP US); D21H 17/67 (2013.01 - EP US); D21H 23/18 (2013.01 - EP US)
Citation (search report)
See references of WO 2006069660A1
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006069660 A1 20060706; CA 2589653 A1 20060706; CA 2589653 C 20141007; CN 101084346 A 20071205; CN 101084346 B 20120530; DE 102004063005 A1 20060713; EP 1831459 A1 20070912; EP 1831459 B1 20160323; ES 2572776 T3 20160602; PT 1831459 E 20160602; US 2010282424 A1 20101111; US 7998314 B2 20110816
DOCDB simple family (application)
EP 2005013631 W 20051217; CA 2589653 A 20051217; CN 200580043807 A 20051217; DE 102004063005 A 20041222; EP 05817729 A 20051217; ES 05817729 T 20051217; PT 05817729 T 20051217; US 72246805 A 20051217