ENHANCED DRY STRENGTH AND DRAINAGE PERFORMANCE BY COMBINING GLYOXALATED ACRYLAMIDE-CONTAINING POLYMERS WITH CATIONIC AQUEOUS DISPERSION POLYMERS

A process is disclosed for the production of paper with enhanced dry strength comprising adding to the wet end of a paper machine, (a) a glyoxalated acrylamide-containing polymer and (b) a cationic aqueous dispersion polymer. Guidelines for the properties of the polymers that make this coadditive sy...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	MCKAY, JONATHAN, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A process is disclosed for the production of paper with enhanced dry strength comprising adding to the wet end of a paper machine, (a) a glyoxalated acrylamide-containing polymer and (b) a cationic aqueous dispersion polymer. Guidelines for the properties of the polymers that make this coadditive system effective are established. Polymer properties discussed include molecular weight, cationic charge, polymer composition and functionalization, and relative additive amounts. L'invention concerne un procédé pour la fabrication de papier ayant une résistance à sec améliorée, consistant à ajouter au bout humide d'une machine à papier, (a) un polymère à teneur en acrylamide, glyoxalaté, et (b) un polymère cationique en dispersion aqueuse. Des directives pour les propriétés des polymères qui rendent ce système de co-additifs efficace sont établies. Les propriétés des polymères qui sont discutées comprennent la masse moléculaire, la charge cationique, la composition et fonctionnalisation des polymères et les quantités relatives d'additifs.