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OwnerMarkus Henne, Kurt Behre +2inventors
InventorsMarkus Henne, Kurt Behre, Dietmar Rakutt, Martin Hintermann
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A method for producing fiber-reinforced plate material on the basis of a fiber web that contains at least one planar fiber structure and is impregnated with a thermoplastic plastic matrix. The one or more fiber structures are impregnated or coated with a reactive starting material, containing cyclic or macrocylic oligomers of the polyester, and in that the fiber web which contains one or more combined, impregnated or coated fiber structures is coated on one or both sides with a surface layer that contains a polymerized polyester. The fiber web that is coated with said surface layer is pressed in a pressing device to give a plate material, thereby polymerizing the reactive starting material into a plastic matrix that surrounds the fiber structure and that is permanently joined to the surface layer.
Method for producing a fibre-reinforced sheet material made of a fibre web which is impregnated with a thermoplastic plastics material matrix, containing at least one planar fibre structure, comprising the steps of impregnating or coating at least one fibre structure with a reactive starting material containing cyclic or macrocyclic oligomers of the polyester, and a fibre web containing one or more impregnated or coated fibre structures brought together is coated on one or both sides with an outer layer containing a polymerised polyester, and the fibre web which is coated with the outer layer is pressed in a pressing device to form a sheet material, wherein the reactive starting material is polymerised into a plastics material matrix surrounding the fibre structures and permanently connected to the outer layer.
Method for producing a fibre-reinforced plastics material article containing a fibre structure embedded in a plastics material matrix made of a polyester, wherein the cavity of a moulding tool is equipped at least with a fibre structure and a reactive starting material containing cyclic or macrocyclic oligomers of the polyester blended with a polymerisation catalyst, and the moulding tool is closed and the reactive starting material is polymerised to form a thermoplastic plastics material matrix with the application of pressure and/or heat, characterised in that the wall of the tool cavity is coated with a film made of a reactive starting material containing cyclic or macrocyclic oligomers of the polyester or a polymerised polyester, such as PET, PBT, PBT blend.
Method for producing a multi-layer composite containing at least one layer made of a foamed material and an outer layer connected thereto made of a fibre-reinforced sheet material, characterised in that both the foamed material and the sheet material contain a plastics material matrix made of a polyester and, to produce the multi-layer composite, a single-layer or multi-layer fibre web which is impregnated or coated with a reactive starting material containing cyclic or macrocyclic oligomers of the polyester blended with a polymerisation catalyst is connected to a foamed material layer made of a polymerised polyester to form a laminate, and the reactive starting material is polymerised, with formation of the plastics material matrix of the sheet material and with an intimate connection to the foamed material layer, to form a polyester.
Method for producing a multi-layer composite containing at least one layer made of a foamed material and an outer layer connected thereto made of a fibre-reinforced sheet material, characterised in that both the foamed material and the sheet material contain a plastics material matrix made of a polyester and, to produce the multi-layer composite, a starting material which is loaded with a blowing agent is extruded on the sheet material, which expands with relief of pressure to form a foamed material layer and is brought together with the sheet material to form a multi-layer composite.
Method for producing a fibre-reinforced plastics material article, characterised in that both the reinforcement fibres of the fibre structure and the plastics material matrix consist of a polyester, the polyester fibres being processed with directed crystallinity to form a fibre structure and the fibre structure being processed to form a fibre reinforced plastics material article forming a plastics material matrix, in that the surfaces of the fibres are melted and hardened with the formation of an isotropic plastics material matrix surrounding the non-molten part of the fibres.
Dependencies are inferred from the claim text.