HETEROPHASIC POLYPROPYLENE COMPOSITION FOR CRATES AND PAILS, ARTICLES AND METHODS THEREOF

Heterophasic propylene copolymer compositions may include a polypropylene - based matrix polymer, and an elastomer phase that is dispersed in the matrix polymer. The composition may exhibit a flexural modulus, measured according to ASTM D790 at 23°C, of at least 800 MPa and an Izod impact strength,...

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Bibliographische Detailangaben
Hauptverfasser:	HORACIO, Daniel Do Carmo, WERLANG, Moisés Magalhães
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Heterophasic propylene copolymer compositions may include a polypropylene - based matrix polymer, and an elastomer phase that is dispersed in the matrix polymer. The composition may exhibit a flexural modulus, measured according to ASTM D790 at 23°C, of at least 800 MPa and an Izod impact strength, measured according to ASTM D256 at 0°C, of at least 400 J/m. Articles may be formed from the heterophasic propylene copolymer compositions by injection molding. Selon l'invention, des compositions de copolymère de propylène hétérophasique peuvent comprendre un polymère matrice à base de polypropylène, et une phase élastomère qui est dispersée dans le polymère matrice. La composition peut présenter un module de flexion, mesuré selon la norme ASTM D790 à 23 °C, d'au moins 800 MPa et une résistance au choc Izod, mesurée selon la norme ASTM D256 à 0 °C, d'au moins 400 J/m. Des articles peuvent être formés à partir des compositions de copolymère de propylène hétérophasique par moulage par injection.