CONDUCTIVE SHEET AND RESIN MOLDING USING THE SAME

PURPOSE:To provide a lightweight conductive sheet which can be manufactured at a low cost and, even when the sheet is molded, can exert excellent moldability and can maintain a good electromagnetic wave shielding property. CONSTITUTION:The raw material of a conductive sheet is constituted of a condu...

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Bibliographische Detailangaben
1. Verfasser:	NISHIU MASAMICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PERFORMING OPERATIONS PRINTED CIRCUITS SEMICONDUCTOR DEVICES 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:	PURPOSE:To provide a lightweight conductive sheet which can be manufactured at a low cost and, even when the sheet is molded, can exert excellent moldability and can maintain a good electromagnetic wave shielding property. CONSTITUTION:The raw material of a conductive sheet is constituted of a conductive nonwoven fabric in which conductive fibers composed of metal-plated carbon fibers are distributed and a resin sheet material, with at least part of the sheet material being buried in the void of the nonwoven fabric. For example, the resin sheet material is brought into contact with the nonwoven fabric by heating the sheet material and the void part of the nonwoven fabric is forcibly impregnated with the resin of the sheet by press-rolling the sheet material. At the press-rolling time, it is preferable to perform graining on the sheet material. Because of the conductive fibers, the conductive sheet has an excellent electromagnetic wave shielding property. When this sheet is used, in addition, a box-shaped resin molding 1 can be obtained by the well known vacuum molding method. At the time of molding the resin molding 1, the corner sections of the molding 1 are subject to stresses, but the electrical continuity is not broken at the sections. Therefore, the characteristics of the conductive sheet are not deteriorated in the molding.