PAPER SIZING COMPOSITIONS

PARTICULATE SOLID COMPRISING KETENE DIMERS MAY BE OBTAINED BY DRYING A CONVENTIONAL AQUEOUS DISPERSION OF THE DIMER TO WHICH A WATER DISPERSABLE ENCAPSULATING AGENT HAS BEEN ADDED. PREFERABLY THE ENCAPSULATING AGENT IS A CATIONIC STARCH AND THE SOLID IS OBTAINED BY SPRAY DRYING THE EMULSION UNDER CO...

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Hauptverfasser:	DAVID WILLIAM SHEPHERD, DAVID CHARLES JOHNSON, LAWRENCE FORRESTER WATSON
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	PARTICULATE SOLID COMPRISING KETENE DIMERS MAY BE OBTAINED BY DRYING A CONVENTIONAL AQUEOUS DISPERSION OF THE DIMER TO WHICH A WATER DISPERSABLE ENCAPSULATING AGENT HAS BEEN ADDED. PREFERABLY THE ENCAPSULATING AGENT IS A CATIONIC STARCH AND THE SOLID IS OBTAINED BY SPRAY DRYING THE EMULSION UNDER CONTROLLED CONDITIONS. THE PRODUCTS RETAIN SIZING PROPERTIES EVEN ON PROLONGED STORAGE.