SKIN-CORE COMPOSITE AND METHOD OF MAKING

In a skin-core composite, the core includes specific amounts of a core matrix thermoplastic resin and core reinforcing fibers having a length of 4 to 50 millimeters. The core optionally further includes toughening fibers and/or a binder thermoplastic resin. The skin includes specific amounts of a sk...

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Bibliographische Detailangaben
Hauptverfasser:	LAWRENCE, Stanley Leroy, SOHN, Sungkyun
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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:	In a skin-core composite, the core includes specific amounts of a core matrix thermoplastic resin and core reinforcing fibers having a length of 4 to 50 millimeters. The core optionally further includes toughening fibers and/or a binder thermoplastic resin. The skin includes specific amounts of a skin matrix thermoplastic resin and a skin reinforcing fiber. Also described is a method of forming a skin-core composite, the method including thermoforming and overmolding steps. La présente invention concerne un composite peau-noyau, le noyau comprenant des quantités spécifiques d'une résine thermoplastique à matrice centrale et de fibres de renforcement centrales d'une longueur de 4 à 50 millimètres. Le noyau comprend éventuellement, en outre, des fibres de renfort et/ou une résine thermoplastique liante. La peau comprend des quantités spécifiques d'une résine thermoplastique de matrice de peau et d'une fibre de renforcement de peau. L'invention concerne également un procédé de formation d'un composite peau-noyau, le procédé comprenant des étapes de thermoformage et de surmoulage.