STIVELSESHOLDIG POLYMERBLANDING FOR FREMSTILLING AV FILMER OG LIGNENDE OG FREMGANGSMAATE FOR DENS FREMSTILLING

• Main Authors: LOMBI, ROBERTO, BASTIOLI, CATIA, BELLOTTI, VITTORIO, TREDICI, GIANFRANCO DEL, MONTINO, ALESSANDRO
• Format: Patent
• Language: Norwegian
• Published: 24.03.1992
• Edition: 5
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

Et material egnet for fremstilling av bionedbrytbare gjenstander i form av film, ark eller fiber, kan fremstilles ved ekstrudering fra en smeltet masse inkluderende en syntetisk termoplastisk polymer og en nedbrutt stivelse hvortil det er blitt tilsatt en borholdig forbindelse som borsyre, metaborsyre, boraks og derivater derav. Gjenstander fremstilt av dette material har forbedret transparens, Young's modul og rivstyrke. The material, which is usable for the production of biodegradable articles in film, sheet or fiber form, can be produced by extrusion from a molten mass including a synthetic thermoplastic polymer and a destructured starch to which a boron containing compound, such as boric acid, metaboric acid, borax and derivatives thereof has been added. Articles made of this material have improved transparency, Young's modulus and tear strength.