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1. (WO2014195884) COMPOSITE PANEL FOR FLOORS OR WALLCOVERING COMPONENTS, AND PROCESS FOR MANUFACTURING SUCH A PANEL

Pub. No.:    WO/2014/195884    International Application No.:    PCT/IB2014/061948
Publication Date: Fri Dec 12 00:59:59 CET 2014 International Filing Date: Thu Jun 05 01:59:59 CEST 2014
IPC: B32B 5/02
B32B 5/12
B32B 5/26
B32B 3/12
B32B 3/06
Applicants: LES STRATIFIES
Inventors: LE LAY, Loïc
BACLET, Laurent
SCAGNETTI, Julien
Title: COMPOSITE PANEL FOR FLOORS OR WALLCOVERING COMPONENTS, AND PROCESS FOR MANUFACTURING SUCH A PANEL
Abstract:
The invention proposes a lightweight composite panel (10) that is impact-resistant and resistant to peeling, comprising: • a honeycomb core (1) made of poly(p-phenylene terephthalamide), positioned on either side of which are two skins each comprising: • an inner ply (2, 3) comprising: - E-glass fibre fabric (2a, 3a) in contact with the honeycomb core (1); and - a sheet (2b, 3b) of unidirectional carbon fibres oriented in a first direction; • an outer ply (4, 5), in contact with the corresponding inner ply (2, 3), comprising: - a sheet (4a, 5a) of unidirectional carbon fibres oriented in a second direction different from the first direction, the sheet (4a, 5a) of each outer ply (4, 5) being opposite the sheet (2b, 3b) of the corresponding inner ply (2, 3); and - an E-glass fibre fabric (4b, 5b). The glass fibre fabrics (2a, 3a, 4b, 5b) are impregnated with at least 70% by weight of epoxy resin, and have a mass of less than or equal to 30 g/m2. The carbon fibre sheets (2b, 3b, 4a, 5a) have a modulus of elasticity between 275 and 300 GPa, are pre-impregnated between 30% and 40% by weight with an epoxy resin, and have a mass of less than or equal to 100 gm2.