Method for manufacturing paper or cardboard
A method for the production of paper or cardboard is provide comprising the following steps:(A) Adding a water soluble polymer P to a first aqueous pulp suspension,wherein polymer P is obtainable byPolymerizing to a polymer V of(i) 33 to 83 mol % of a monomer of formula Iin which R1═H or C1-C6 alkyl...
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| creator | Esser, Anton Haehnle, Hans-Joachim Hamers, Christoph Pahnke, Kai |
| description | A method for the production of paper or cardboard is provide comprising the following steps:(A) Adding a water soluble polymer P to a first aqueous pulp suspension,wherein polymer P is obtainable byPolymerizing to a polymer V of(i) 33 to 83 mol % of a monomer of formula Iin which R1═H or C1-C6 alkyl,(ii) 6 to 56 mol % of diallyl dimethyl ammonium chloride, diallyl diethyl ammonium chloride or a salt form of a monoethylenically unsaturated monomer,(iii) 11 to 61 mol % of a monoethylenically unsaturated carboxylic acid, sulfonic acid or phosphonic acid, or salt forms thereof,(iv) 0 to 50 mol % of one or more ethylenically unsaturated monomers, andhydrolyzing the N-C(═O)R1 groups to form primary amino or amidine groups,(B) dehydrating the second aqueous pulp suspension to a wet paper structure,(C) dehydrating the wet paper structure. |
| format | Patent |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON 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 |
| title | Method for manufacturing paper or cardboard |
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