MOLDED ARTICLE OF FIBER-REINFORCED RESINS AND PROCESS AND EQUIPMENT FOR THE MOLDING THEREOF

A light composite material structure having good sound-absorbing performance and recyclability, and enabling easy production of a sound-absorbing portion without using different material. This invention features preparing a molding compound by air-mixing a thermoplastic resin and reinforcing fibers,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	EKIMOTO, TAKAO, KADOWAKI, RYOSAKU, YUMITORI, SHUJI, OKUMURA, TOSHIAKI, SAITO, KAIZABURO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS NON-WOVEN FABRICS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOUND-PRODUCING DEVICES TEXTILES TRANSPORTING TRIMMINGS WADDING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A light composite material structure having good sound-absorbing performance and recyclability, and enabling easy production of a sound-absorbing portion without using different material. This invention features preparing a molding compound by air-mixing a thermoplastic resin and reinforcing fibers, for instance, to create three-dimensionally interlacing of the reinforcing fibers, plasticizing and compression-molding the molding compound, in which a sound-absorbing portion is formed as the reinforcing fibers are fluffed out in a specific surface region of the molded resin product and/or a void is partially created in the molded resin product due to restoring expansion of the compressed reinforcing fibers.