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A process for producing a thermoformable fibre-plastics composite product comprising lignolcellulosic or natural fibres, particularly but not exclusively useful as an intermediate product in subsequent manufacture, comprises conveying the fibres in a dry or wet air stream and applying to the fibres

A process for producing a thermoformable fibre-plastics composite product comprising lignolcellulosic or natural fibres, particularly but not exclusively useful as an intermediate product in subsequent manufacture, comprises conveying the fibres in a dry or wet air stream and applying to the fibres a thermoplastic binding agent, and forming the fibres into a solid or semi-solid product such as a panel, which is thermoformable. In at least a preferred embodiment the process may be carried out in known plant for manufacture of medium density fibre board.

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The invention claimed is: 1. A process for producing a thermoformable fibre-plastics composite product comprising fibres of a lignocellulosic material or natural fibres, comprising:conveying loose or divided fibres or fibre bundles, produced by mechanically or thermomechanically or chemo-thermomecha

The invention claimed is: 1. A process for producing a thermoformable fibre-plastics composite product comprising fibres of a lignocellulosic material or natural fibres, comprising:conveying loose or divided fibres or fibre bundles, produced by mechanically or thermomechanically or chemo-thermomechanically or chemo-mechanically breaking down a lignocellulosic material, or natural fibres, in a dry or wet air stream and applying to or intimately mixing with the fibres while so conveying the fibres sufficient of one or more thermoplastic binding agents in a liquid formulation or particulate form to enable, after subsequently forming the fibres into a solid panel, said panel to be thermoformed to a different shape, andso forming the fibres into a solid thermoformable panel having a density of about 500 kg/m3 or more by hot pressing the fibers.