Plastic composite panel and associated production method

US12151413B2 · kind B2 · utility

Assignee

• Preh GmbH · DE

Inventors

• Peter Lochner · Worms, DE
• Steffen Neubauer · Bad Neustadt an der Saale, DE
• Benedikt Rueckert · Bad Königshofen im Grabfeld, DE
• Martin Suennemann · Lahnstein, DE

Key dates

• Filing date: Aug 7, 2020
• Grant date: Nov 26, 2024
• Expiry date: Aug 7, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2605/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method for producing a plastic composite panel which is provided as a layer structure. The method includes providing a film layer structure comprising an adhesive layer which is arranged between two transparent plastic films. The film layer structure is pre-molded to assume an approximately final shape and is arranged in a molding tool so that a first main surface of the film layer structure is towards the molding surface of the molding tool and so that a cavity is formed between the second main surface of the film layer structure and a surface of the molding tool. The film layer structure is then back-molded in a thermal molding method step while introducing a thermoplastic material into the cavity to provide the layer structure. A pre-molding and back-molding step, a rigidification of the thermoplastic layer, and a demolding of the layer structure is further performed.