AQUEOUS POLYMER COMPOSITION FOR PAPER COATING

The present invention concerns aqueous polymer compositions comprising a water soluble hydrophilic polymer with poly(ethylene oxide) content higher than 50% by weight and a polyacrylic thickener containing sulfonic groups. The aqueous polymer compositions of the invention are useful as deflocculants...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI BASSI, GIUSEPPE, BOSSI, THIERRY, PARISI, CHRISTIAN, FLORIDI, GIOVANNI, BETTI, VITTORIO, VAGO, RICCARDO, FEDERICI, FRANCO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES IMPREGNATING OR COATING OF PAPER INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention concerns aqueous polymer compositions comprising a water soluble hydrophilic polymer with poly(ethylene oxide) content higher than 50% by weight and a polyacrylic thickener containing sulfonic groups. The aqueous polymer compositions of the invention are useful as deflocculants, rheology modifiers and water retention agents for paper coating compositions. La présente invention concerne des compositions polymères aqueuses comprenant un polymère hydrophile hydrosoluble présentant une teneur en poly(éthylène oxyde) supérieure à 50 % en poids et un épaississant polyacrylique contenant des groupes sulfoniques. Les compositions polymères aqueuses selon l'invention sont utiles en tant qu'agents défloculants, modificateurs de rhéologie et agents rétenteurs d'eau pour des compositions de couchage du papier.