Moulded article reinforced with a reinforcing element, method for production thereof and use thereof
AssigneeEms-Patent AG
InventorsSimon Bernhard Weis, Christian Kruse, Peter Loch
Life of this patent
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Abstract
The invention relates to a method for the production of a moulded article, reinforced with at least one reinforcing element, by means of injection moulding. The reinforcing element is hereby connected integrally to the injection mould wall so that, with subsequent injection moulding of the polymer matrix, the reinforcing element is fixed in the mould. The invention relates likewise to a reinforced moulded article which is producible according to this method. The moulded articles according to the invention are used in the production of automobile parts, industrial and consumer goods and also sports appliances.
Claims15
A method for producing a moulded article reinforced with at least one fibre ribbon, comprising:
- a) impregnating an endless, flat roving with a melt of a first thermoplastic polymer to form an impregnated fibre ribbon having two opposing sides,
- b) applying in regions of at least one adhesive on only one of the two opposing sides the impregnated fibre ribbon with subsequent melting of the at least one adhesive,
- c) cooling and hardening of the impregnated fibre ribbon applied with the at least one adhesive,
- d) heating an injection mould to a temperature which is not lower than 20 K below the melting point of the adhesive,
- e) introducing the impregnated fibre ribbon from c) into the injection mould such that at least one part of the regions of the impregnated fibre ribbon coated on one side with the at least one adhesive is brought in contact with at least one temperature-controlled injection mould wall and the adhesive coated side adheres to the wall of the injection mould such that the impregnated fibre ribbon is fixed to the wall of the injection mould by the adhesive,
- f) injection moulding a second thermoplastic polymer into the mould such that the second thermoplastic polymer adheres to the side of the impregnated fibre ribbon that has not been applied at least one adhesive, to obtain a reinforced moulded article, and
- g) removing the reinforced moulded article from the injection mould.
Dependencies are inferred from the claim text.