PREPARATION OF LOW-DUSTING OR NON-DUSTING WATERDISPERSIBLE CROSSLINKED POLYVINYLPYRROLIDONE GRANULES

Preparation of low-dusting or dust-free waterdispersible crosslinked polyvinylpyrrolidone (PVPP) granules characterized by extruding a dough consisting of said PVPP and water through a die plate and subsequent drying of the granules. L'invention concerne la préparation de granules de polyvinylp...

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Bibliographische Detailangaben
Hauptverfasser:	STAFF, Roland, HASSE, Andreas, KRESS, Joerg
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AGEING BEER BIOCHEMISTRY CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLARIFICATION COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ENZYMOLOGY GENERAL PROCESSES OF COMPOUNDING MAKING GRANULES OR PREFORMS METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS PASTEURISATION PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PRESERVATION PURIFICATION RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SPIRITS STERILISATION THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING VINEGAR WINE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Preparation of low-dusting or dust-free waterdispersible crosslinked polyvinylpyrrolidone (PVPP) granules characterized by extruding a dough consisting of said PVPP and water through a die plate and subsequent drying of the granules. L'invention concerne la préparation de granules de polyvinylpyrrolidone (PVPP) réticulée hydrodispersables ne formant que peu ou pas de poussières, caractérisée par l'extrusion d'une pâte constituée de ladite PVPP et d'eau à travers une plaque porte-filière et le séchage ultérieur des granules.