METHODS OF MAKING GLASS-FILLED POLYPROPYLENE ARTICLES

A method of making an article includes: heating a plaque formed from a thermoplastic composition; and vacuum forming the heated plaque to form the article. The thermoplastic composition includes a polypropylene polymer component and a fiber reinforcement component. The heating is implemented using o...

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Bibliographische Detailangaben
Hauptverfasser:	FABER, Rein, Mollerus, NANDI, Manish, LAURIN, Michael, M, MILNE, Craig, Lawrence, MAAS, Christianus, Johannes Jacobus
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method of making an article includes: heating a plaque formed from a thermoplastic composition; and vacuum forming the heated plaque to form the article. The thermoplastic composition includes a polypropylene polymer component and a fiber reinforcement component. The heating is implemented using one or more heaters having a maximum temperature output of between 1500 - 3000 °C and maximum intensity between 0.80 μm and 2 μm. The article may include a surgical tray having a bottom surface having side walls disposed around a periphery thereof and extending from the bottom surface. L'invention concerne un procédé de fabrication d'un article qui consiste à : chauffer une plaque formée à partir d'une composition thermoplastique; et former sous vide la plaque chauffée pour former l'article. La composition thermoplastique comprend un composant de polymère de polypropylène et un composant de renforcement de fibre. Le chauffage est mis en oeuvre à l'aide d'un ou de plusieurs éléments chauffants ayant une sortie de température maximale comprise entre 1500 et 3000 °C et une intensité maximale comprise entre 0,80 µm et 2 µm. L'article peut comprendre un plateau chirurgical ayant une surface inférieure ayant des parois latérales disposées autour d'une périphérie de celui-ci et s'étendant à partir de la surface inférieure.