PROCESS FOR MANUFACTURING STABLE WATER/OIL EMULSION OF POLYMER PREPARED BY HYDROLYSIS OF N-VINYLAMIDE

Stable water-in-oil emulsions of a hydrolyzed polymer of an N-vinylamide of the formula (I) where R and R1 are each H or C1-C6-alkyl, are prepared by polymerizing a compound of the formula I, alone or as a mixture with other monoethylenically unsaturated monomers, in the form of a water-in-oil emuls...

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Hauptverfasser:	BUARUTAA DENTSUINGAA, NORUBERUTO ZENTOHOFU, RORUFU FUIKENCHIYAA, HAINRITSUHI HARUTOMAN, MIHIYAERU KUREENAA, ENRIKE FUROIDENBERUKU, RUTSUTSU ENTO, FURIIDORITSUHI RINHARUTO
Format:	Patent
Sprache:	eng
Schlagworte:	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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Stable water-in-oil emulsions of a hydrolyzed polymer of an N-vinylamide of the formula (I) where R and R1 are each H or C1-C6-alkyl, are prepared by polymerizing a compound of the formula I, alone or as a mixture with other monoethylenically unsaturated monomers, in the form of a water-in-oil emulsion to give a water-in-oil polymer emulsion, and then hydrolyzing the polymer, hydrolysis of the polymer in the form of the water-in-oil polymer emulsion being carried out in the presence of an acid or base, and additives in the form of antioxidants, reducing agents or aldehyde acceptors being added for stabilization.