EP 1994222 A1 20081126 - IMPROVED PROCESS FOR THE MANUFACTURE OF PAPER AND BOARD
Title (en)
IMPROVED PROCESS FOR THE MANUFACTURE OF PAPER AND BOARD
Title (de)
VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON PAPIER UND KARTON
Title (fr)
PROCEDE AMELIORE DE FABRICATION DE PAPIER ET DE CARTON
Publication
Application
Priority
- EP 2007051015 W 20070202
- EP 06003353 A 20060220
- EP 07726292 A 20070202
Abstract (en)
[origin: WO2007096242A1] The present invent ion provides a process for the manufacture of paper or board in which the anionic charge at the fibre surface is artificially increased by adding a substantive water soluble anionic compound, providing more sites and enhancing the adsorption of cationic papermaking additives. The preferred anionic compound is a phenolic polymer.
IPC 8 full level
D21H 17/48 (2006.01); D21H 21/10 (2006.01); D21H 21/16 (2006.01); D21H 21/28 (2006.01); D21H 21/30 (2006.01); D21H 23/10 (2006.01)
CPC (source: EP US)
D21H 23/10 (2013.01 - EP US); D21H 17/48 (2013.01 - EP US); D21H 21/10 (2013.01 - EP US); D21H 21/16 (2013.01 - EP US); D21H 21/28 (2013.01 - EP US); D21H 21/30 (2013.01 - EP US)
Citation (search report)
See references of WO 2007096242A1
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 2007096242 A1 20070830; AR 059584 A1 20080416; EP 1994222 A1 20081126; TW 200801061 A 20080101; US 2009025895 A1 20090129
DOCDB simple family (application)
EP 2007051015 W 20070202; AR P070100704 A 20070219; EP 07726292 A 20070202; TW 96106234 A 20070216; US 22425207 A 20070202