CATIONIC MODIFICATION PROCESS FOR STARCH AND USE OF CATIONICALLY MODIFIED STARCH
Starch is cationically modified by reacting starch with polymers which contain amino and/or ammonium groups in an aqueous medium at from 115 to 180.degree.C under superatmospheric pressure in the absence of oxidizing agents, polymerization initiators and alkali, by a process in which the reaction is...
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| creator | HARTMANN HEINRICH MEIXNER, HUBERT REUTHER, WOLFGANG DENZINGER, WALTER NIESSNER, MANFRED STANGE, ANDREAS SCHUHMACHER, RUDOLF NILZ, CLAUDIA LINHART, FRIEDRICH |
| description | Starch is cationically modified by reacting starch with polymers which contain amino and/or ammonium groups in an aqueous medium at from 115 to 180.degree.C under superatmospheric pressure in the absence of oxidizing agents, polymerization initiators and alkali, by a process in which the reaction is carried out in a manner such that a reduction in molecular weight occurs in not more than 10% by weight of the starch, and the reaction products thus obtainable are used as dry strength agents for paper. |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF IMPREGNATING OR COATING OF PAPER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING POLYSACCHARIDES 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 | CATIONIC MODIFICATION PROCESS FOR STARCH AND USE OF CATIONICALLY MODIFIED STARCH |
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