AN INJECTION MOLDING MATERIAL FOR PRODUCING MOLDED ARTICLES

• Main Authors: GALLUR BLANCA, Miriam, VERDU SOLIS, Maria Amparo, JIMENEZ PARDO, Maria Jose
• Format: Patent
• Language: English; French; German
• Published: 21.02.2024
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; GENERAL PROCESSES OF COMPOUNDING; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

An injection molding material for producing molded articles having poly(3-hydroxybutyrate-co-3-hydroxyvalerate); cellulose, present between 12 and 17% in weight in relation to the total weight of the components; talc, present between 7 and 9% in weight in relation to the total weight of the components; and a polyadipate ester-based plasticizer, present between 3 and 6% in weight in relation to the total weight of the components. The material is compostable according to the European standard EN 13432 and it has barrier properties according to which the Oxygen Transmission Rate (OTR) is between 5 and 10 cm3/m2·day and the Water Vapour Transmission Rate (WVTR) is between 2 and 7 g/m2·day.