A PROCESS FOR THE PREPARATION OF HYDROXY POLYMER ESTERS AND THEIR USE

This invention covers a novel method for the preparation of hydroxy polymer esters of amino, alkylamino and quaternary ammonium acids and their use in several fields of industry, incuding the use as additives in the manufacture of paper or paperboard. The esterification of the hydroxy polymer, prefe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YLI-KAUHALUOMA, JARI, LUTTIKHEDDE, HENDRIK JAN GERRIT, NURMI, KARI, KAKI, JOUKO, LAINE, AKI, NYMAN, TOMI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON 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
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Beschreibung
Zusammenfassung:	This invention covers a novel method for the preparation of hydroxy polymer esters of amino, alkylamino and quaternary ammonium acids and their use in several fields of industry, incuding the use as additives in the manufacture of paper or paperboard. The esterification of the hydroxy polymer, preferabl y starch, is performed under semianhydrous conditions by heating homogenized mixtures of the hydroxy polymer and reagents.