SOLIDIFICATION COMPOSITION FOR PAPER AND CARDBOARD

• Main Authors: HAEHNLE, Hans-Joachim, WALTHER, Tina, SEIFERT, Susan, SPANGE, Stefan, WUERFEL, Hendryk, TROMMLER, Katja, HAMERS, Christoph, ESSER, Anton
• Format: Patent
• Language: English; French; German
• Published: 23.08.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; IMPREGNATING OR COATING OF PAPER; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; 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 INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to an aqueous composition containing (a) polymers having primary amino groups and/or amidine groups with a total content of said groups of ≥1.5 meq/g polymer and (b) 0.01 - 50 mol-% 1,4-cyclohexandion (b) based on the total amount of primary amino groups and amidine groups of the polymers. The aqueous composition has a pH-value ≤6. The invention also relates to the use thereof as a solidifying agent and to a method for producing paper and cardboard, to the use of the aqueous composition and to the thus produced paper and cardboard.