Abstract: An assembly (113) for composite manufacture is provided. The assembly comprises a cured resin impregnated reinforcement material (112) comprising a fibre component and a resin matrix component, in which the resin matrix component comprises polyurethane, the assembly having a length to width ratio of at least 5:1, and the assembly defining a longitudinal direction (L) along its length; and a peel ply (116) in contact with the cured resin impregnated reinforcement material (112), the peel ply (116) comprising a woven layer having a plurality of longitudinal fibres (118) extending in the longitudinal direction (L); and a plurality of transverse fibres (120) extending in a transverse direction (T) normal to the longitudinal direction (L); in which the areal density of the plurality of transverse fibres (120) is higher than the areal density of the plurality of longitudinal fibres (118).

Abstract: An assembly (113) for composite manufacture is provided. The assembly comprises a cured resin impregnated reinforcement material (112) comprising a fibre component and a resin matrix component, in which the resin matrix component comprises polyurethane, the assembly having a length to width ratio of at least 5:1, and the assembly defining a longitudinal direction (L) along its length; and a peel ply (116) in contact with the cured resin impregnated reinforcement material (112), the peel ply (116) comprising a woven layer having a plurality of longitudinal fibres (118) extending in the longitudinal direction (L); and a plurality of transverse fibres (120) extending in a transverse direction (T) normal to the longitudinal direction (L); in which the areal density of the plurality of transverse fibres (120) is higher than the areal density of the plurality of longitudinal fibres (118).

Abstract: A mould for moulding materials, the mould comprising at least two corresponding mould elements (14, 16, 18, 20) moveable relative to one another towards and away from each other, the towards movement exerting pressure on a moulding material positioned within a cavity formed with the mould wherein upon the mould elements being in contact the mould cavity comprises a recess (120), the recess (120) being located beyond the edge of the moulding to allow escape of gas (12) during moulding.

Abstract: Prepregs comprising fibrous reinforcing material and a heat curable resin are provided with a backing sheet whose surface has been treated to increase the surface tension which enhances the bonding between the prepreg and the backing sheet, and reduces resin removal when the backing sheet is removed. The use of the treated backing sheet also provides improved tack between prepregs when assembled in a stack for molding after removal of the backing sheet.

Abstract: A method of producing molded articles. The method uses a fibrous material and a first and second resin material. The first resin material is at least partially cured before being combined with the fibrous material and the second resin material. The molding material is inserted into a mold and processed to form a molded article by providing energy. The molded article is produced using less energy than would be necessary for processing a molding material which did not include a partially cured first resin material.

Abstract: A molding material comprising a fibrous reinforcement layer and a curable resin matrix. The fibrous reinforcement layer comprises a non-woven fabric comprising a single layer of unidirectional tows arranged at an angle greater than 0° in relation to the lengthwise direction of the fabric and a support structure for maintaining the arrangement of the tows.

Abstract: A module (1) for holding at least one bushing (17) within a recess, wherein it comprises two side surfaces (2, 3), an upper (4) and a lower (5) surface and at least one end surface (6), wherein the upper (4) and lower (5) surfaces are of different width and arcs, respectively, in their cross-section, and the side surfaces (2, 3) are of equal height, and when coupled to a second module (8) by its side surfaces (3, 9), which second module (8) optionally may also hold at least one bushing (17), the sum of the angle (alpha) between the optionally imaginary plane side surface (12) of the one module (1) and the tangent (10) to its upper surface (4) at the intersection (A) with the side surface (3) and the angle (beta) between the optionally imaginary plane side surface (13) of the other module (8) and the tangent (11) to its upper surface (15) at the intersection (B) with the side surface (9) is at least 180 degrees and/or a plurality of modules (1), optionally when holding the bushings (17), form at least a sectio

Abstract: A cured or partly cured fiber reinforced sheet material comprising reinforcement fibres and a reinforcement resin material, wherein the reinforcement resin material comprises an epoxy resin having an epoxy equivalent weight in the range of from 50 to 250, preferably from 100 to 200, and an amine hardener, the sheet material comprising a surface structure for spacing the sheet material from adjacent moulding materials.

Abstract: The present invention regards a fiber-reinforced composite molding with an outer (102) structure and an inner structure (106), wherein the outer structure (102) is formed from at least one layer of fibrous reinforcing material and a cured first resin material, and the inner structure (106) is formed from a plurality of layers of fibrous reinforcing material and a second cured resin material, wherein the viscosity of the uncured first resin material is lower than the viscosity of the uncured second resin material and wherein in the composite molding the two cured resin materials are at least partially mixed with each other. It also regards a process for the production of such a fiber-reinforced composite molding.

Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.

Abstract: A process for the preparation of a prepreg comprising superimposing layer of unidirectional fibrous reinforcement comprising a plurality of tows each comprising a plurality of parallel filaments onto a resin impregnated layer of unidirectional fibrous reinforcement comprising a plurality of tows each comprising a plurality of parallel filaments wherein the superimposed laminate of layers is compressed to the extent that the resin penetrates the interstices between the tows but penetrates the voids within the tows to less than 22 to 60% by volume of the tows.

Abstract: A scrim-reinforced prepreg assembly for use in building low-porosity lay-ups. The assembly includes a prepreg that is composed of a fibrous reinforcement and a heat-curable resin mixture, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure. The scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the heat-curable resin mixture.

Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.

Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.

Abstract: The invention concerns a process for making a scrim-reinforced prepreg for use in building low-porosity lay-ups, characterized in that a conventional prepreg is formed of a fibrous reinforcement and a heat-curable resin, the prepreg having suitable viscosity and sufficient tackiness to hold a scrim which is adhered to the prepreg by applying light pressure, so that the scrim is impressed onto the prepreg to such a degree, that less than half of the circumference of the scrim strands becomes coated by the prepreg-resin.