EP 2024564 A1 20090218 - SIZING OF PAPER
Title (en)
SIZING OF PAPER
Title (de)
VERFAHREN ZUM LEIMEN VON PAPIER
Title (fr)
COLLAGE DE PAPIER
Publication
Application
Priority
- SE 2007050373 W 20070530
- EP 06114821 A 20060601
- EP 07748534 A 20070530
Abstract (en)
[origin: WO2007139500A1] The present invention relates to a process for the production of paper which comprises: (a) providing an aqueous cellulosic suspension; (b) separately adding to the suspension: (i) a nitrogen-containing organic compound having a molecular weight less than 1,000; and (ii) a cellulose-reactive sizing agent; and (c) dewatering the obtained suspension to form paper. The invention further relates to a process in which a nitrogen-containing organic compound having a molecular weight less than 1,000 is mixed with an aqueous dispersion of a cellulose-reactive sizing agent to form a pre-mix and which premix is added to the suspension.
IPC 8 full level
D21H 17/07 (2006.01); D21H 17/45 (2006.01); D21H 17/56 (2006.01); D21H 17/68 (2006.01); D21H 21/06 (2006.01); D21H 21/16 (2006.01); D21H 23/04 (2006.01); D21H 23/76 (2006.01)
CPC (source: EP KR)
D21H 17/07 (2013.01 - KR); D21H 21/06 (2013.01 - KR); D21H 21/16 (2013.01 - EP KR); D21H 23/76 (2013.01 - KR); D21H 17/07 (2013.01 - EP); D21H 17/17 (2013.01 - EP); D21H 17/455 (2013.01 - EP); D21H 23/04 (2013.01 - EP); D21H 23/765 (2013.01 - EP)
Citation (search report)
See references of WO 2007139500A1
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
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2007139500 A1 20071206; AU 2007268301 A1 20071206; BR PI0712698 A2 20120703; CA 2653791 A1 20071206; CN 101460680 A 20090617; EP 2024564 A1 20090218; JP 2009538998 A 20091112; KR 20090023579 A 20090305; RU 2008152816 A 20100720
DOCDB simple family (application)
SE 2007050373 W 20070530; AU 2007268301 A 20070530; BR PI0712698 A 20070530; CA 2653791 A 20070530; CN 200780020328 A 20070530; EP 07748534 A 20070530; JP 2009513101 A 20070530; KR 20087028685 A 20081124; RU 2008152816 A 20070530