COMPOSITION AND PROCESS FOR MANUFACTURING BIODEGRADABLE MATERIALS WITH HIGH CONTENT OF NATURAL FIBERS AND INORGANIC FILLERS

COMPOSITION AND PROCESS FOR MANUFACTURING BIODEGRADABLE MATERIALS WITH HIGH CONTENT OF NATURAL FIBERS AND INORGANIC FILLERS

The invention relates to a composition and a process for obtaining biodegradable materials for the plastic processing industry. According to the invention, the composition consists, in weight percentages, of 10...50% polyvinyl alcohol, 10...50% starch, 20...50% mixture of plasticizers with the two p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DIMONIE MIHAI DUMITRU, IOVU HORIA, CONSTANTIN VIRGIL, DAMIAN CELINA-MARIA, TRUŞCĂ ROXANA, DIMONIE DOINA OLGA AFINA, VASILE EUGENIU, ANTON LILIANA RODICA ELENA, RÂPĂ MARIA
Format: Patent
Sprache:eng ; rum
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:The invention relates to a composition and a process for obtaining biodegradable materials for the plastic processing industry. According to the invention, the composition consists, in weight percentages, of 10...50% polyvinyl alcohol, 10...50% starch, 20...50% mixture of plasticizers with the two polymers, 0.01...0.9% stabilizer mixture, 0.1...2% lubricant mixture, 0.01...2% compatibilizer, 0.01...4% destructuring agent, 21...40% mineral filler, up to 40% natural fibers or wood flour. As claimed by the invention, the process consists in drying the natural filler up to a humidity of 3...4% and mixing it with the previously processed solid and liquid components, the resulting mixture being extruded to result in granules which are processed by injection.