MANUFACTURE OF POLYCARBONATE COMPOSITE PLATE

PURPOSE:To suppress crazing even under a wrong environment for a long period and to laminate without losing an emboss by preventing a blister of a boundary. CONSTITUTION:The method for manufacturing an acrylic resin composite plate comprises the steps of heating a polycarbonate plate at 80-140 deg.C...

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Bibliographische Detailangaben
Hauptverfasser:	HORI SATORU, MURAKAMI HIDEYUKI, EDASAKI RIYUUICHI, MATSUO TAKAHIRO, URIYUU YUUSAKU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 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:	PURPOSE:To suppress crazing even under a wrong environment for a long period and to laminate without losing an emboss by preventing a blister of a boundary. CONSTITUTION:The method for manufacturing an acrylic resin composite plate comprises the steps of heating a polycarbonate plate at 80-140 deg.C at least for two hours, forming a hot-melt adhesive layer on one or both surfaces of the plate and a thermoplastic resin overlay film, and then bringing the layers on the plate or the film under pressure while making it oppose to the other in such a manner that at least one of the surfaces to be brought into contact with one another is raised to be higher than a softening point of the adhesive. Then, it is held at a temperature not exceeding the softening point of the plate or the film to form a composite plate in which the plate and the film are laminated, and the composite plate is then held at 30-100 deg.C at least for one hour to be aged, thereby manufacturing the polycarbonate composite plate.