EP 3011107 A4 20170201 - A METHOD OF IMPROVING DEWATERING EFFICIENCY, INCREASING SHEET WET WEB STRENGTH, INCREASING SHEET WET STRENGTH AND ENHANCING FILLER RETENTION IN PAPERMAKING
Title (en)
A METHOD OF IMPROVING DEWATERING EFFICIENCY, INCREASING SHEET WET WEB STRENGTH, INCREASING SHEET WET STRENGTH AND ENHANCING FILLER RETENTION IN PAPERMAKING
Title (de)
VERFAHREN ZUR VERBESSERUNG DER ENTWÄSSERUNGSEFFIZIENZ, ERHÖHUNG DER NASSFESTIGKEIT VON BAHNMATERIAL, ERHÖHUNG DER NASSFESTIGKEIT VON BLATTMATERIAL UND VERBESSERUNG DER FÜLLSTOFFRETENTION BEI DER PAPIERHERSTELLUNG
Title (fr)
PROCÉDÉ POUR AMÉLIORER L'EFFICACITÉ DE DÉSHYDRATATION, AUGMENTER LA RÉSISTANCE D'UNE BANDE HUMIDE DE FEUILLE, AUGMENTER LA RÉSISTANCE À L'ÉTAT HUMIDE DE FEUILLES ET AMÉLIORER LA RÉTENTION DE CHARGE DANS LA FABRICATION DU PAPIER
Publication
Application
Priority
- US 201313919167 A 20130617
- US 2014041573 W 20140609
Abstract (en)
[origin: WO2014204702A1] The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on the filler particles.
IPC 8 full level
D21H 21/10 (2006.01); D21H 17/67 (2006.01); D21H 17/69 (2006.01)
CPC (source: EP)
D21H 17/375 (2013.01); D21H 17/45 (2013.01); D21H 17/675 (2013.01); D21H 17/69 (2013.01); D21H 21/10 (2013.01)
Citation (search report)
- [I] WO 2012125235 A2 20120920 - NALCO CO [US], et al
- [A] US 2009267258 A1 20091029 - CHENG WEIGUO [US], et al
- [A] US 5676746 A 19971014 - BROWN ALAN J [US]
- [A] US 5126014 A 19920630 - CHUNG DANIEL K [CA]
- [A] WO 9960209 A1 19991125 - ECC INT INC [US], et al
- See references of WO 2014204702A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014204702 A1 20141224; CA 2913789 A1 20141224; CA 2913789 C 20210727; CN 105378179 A 20160302; CN 105378179 B 20180525; EP 3011107 A1 20160427; EP 3011107 A4 20170201; EP 3011107 B1 20220420; ES 2922931 T3 20220921; JP 2016524662 A 20160818; JP 6469099 B2 20190213; KR 102220315 B1 20210225; KR 20160021851 A 20160226; MX 2015017287 A 20160406
DOCDB simple family (application)
US 2014041573 W 20140609; CA 2913789 A 20140609; CN 201480031469 A 20140609; EP 14814129 A 20140609; ES 14814129 T 20140609; JP 2016521440 A 20140609; KR 20167001416 A 20140609; MX 2015017287 A 20140609