EP 1834040 B1 20150218 - A PROCESS FOR THE PRODUCTION OF PAPER
Title (en)
A PROCESS FOR THE PRODUCTION OF PAPER
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER
Title (fr)
PROCÉDÉ DE PRODUCTION DE PAPIER
Publication
Application
Priority
- SE 2005001847 W 20051207
- EP 04106889 A 20041222
- EP 05815807 A 20051207
Abstract (en)
[origin: WO2006068576A1] The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibres, (ii) adding to the suspension after all points of high shear: a first polymer being a cationic polymer having a charge density above 2.5 meq/g; a second polymer; and a third polymer being an organic or inorganic anionic polymer; and (iii) dewatering the obtained suspension to form paper.
IPC 8 full level
D21H 23/18 (2006.01)
CPC (source: EP KR)
D21H 23/00 (2013.01 - KR); D21H 23/18 (2013.01 - EP KR); D21H 17/375 (2013.01 - EP); D21H 17/42 (2013.01 - EP); D21H 17/44 (2013.01 - EP); D21H 17/68 (2013.01 - EP); D21H 21/10 (2013.01 - EP); D21H 23/765 (2013.01 - EP)
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 2006068576 A1 20060629; AU 2005319774 A1 20060629; AU 2005319774 B2 20090924; AU 2005319774 C1 20100401; BR PI0515831 A 20080805; BR PI0515831 B1 20170328; CA 2592314 A1 20060629; CA 2592314 C 20110208; CN 101137791 A 20080305; CN 102226324 A 20111026; CN 102226324 B 20130417; EP 1834040 A1 20070919; EP 1834040 B1 20150218; ES 2534249 T3 20150421; JP 2008525654 A 20080717; JP 4913071 B2 20120411; KR 101041508 B1 20110616; KR 20070100321 A 20071010; MX 2007006724 A 20070725; NO 20073798 L 20070720; NO 341988 B1 20180312; PL 1834040 T3 20150731; PT 1834040 E 20150415; RU 2007128049 A 20090127; RU 2347029 C1 20090220; ZA 200704916 B 20080925
DOCDB simple family (application)
SE 2005001847 W 20051207; AU 2005319774 A 20051207; BR PI0515831 A 20051207; CA 2592314 A 20051207; CN 200580044329 A 20051207; CN 201110144308 A 20051207; EP 05815807 A 20051207; ES 05815807 T 20051207; JP 2007548139 A 20051207; KR 20077016933 A 20051207; MX 2007006724 A 20051207; NO 20073798 A 20070720; PL 05815807 T 20051207; PT 05815807 T 20051207; RU 2007128049 A 20051207; ZA 200704916 A 20051207