Polymer thick film device

A PTF (polymer thick film) device (10) comprises a substrate (22, 32), a functional PTF layer (24,34) applied on the substrate and a protective cover (25, 35) applied over the PTF layer, the protective cover being an adhesive tape comprising a carrier layer (27, 37) and a layer of adhesive (26, 36),...

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Bibliographische Detailangaben
Hauptverfasser:	CHABACH DRISS, BENNES RAPHAEL, SCHUMACHER ALAIN
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PERFORMING OPERATIONS PRINTED CIRCUITS SEATS SPECIALLY ADAPTED FOR VEHICLES TRANSPORTING VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A PTF (polymer thick film) device (10) comprises a substrate (22, 32), a functional PTF layer (24,34) applied on the substrate and a protective cover (25, 35) applied over the PTF layer, the protective cover being an adhesive tape comprising a carrier layer (27, 37) and a layer of adhesive (26, 36), the carrier layer being coated with the layer of adhesive (26, 36), the layer of adhesive (26,36) having a thickness comprised in the range from 10 % to 100 % of the print thickness of the PTF layer (24, 34). The PTF layer is a carbon ink layer, a silver ink layer, a graphite ink layer, a carbon-silver ink layer, a carbon-graphite ink layer, a graphite-silver ink layer, a carbon-graphite-silver ink layer or a PTC layer (Positive Temperature Coefficient). The PTF device can be used as an electric heater, e.g for car seats.