Patent application number | Description | Published |
20100143145 | FIBRE-REINFORCED COMPOSITE MOULDING AND MANUFACTURE THEREOF - Method of manufacturing a fibre-reinforced composite moulding, the method comprising the steps of: (a) disposing at least one layer of fibrous reinforcing material within a mould; (b) disposing at least one pre-preg layer adjacent to the fibrous reinforcing material, the pre-preg layer comprising fibrous reinforcement at least partially impregnated with uncured first resin material, to form a laminar assembly of the at least one layer of fibrous reinforcing material and the at least one pre-preg layer within the mould; (c) applying a vacuum to the assembly; (d) infusing a flowable uncured second resin material, under the vacuum, into the at least one layer of fibrous reinforcing material; and (e) curing the first and second resin materials at least partially simultaneously to form the fibre-reinforced composite moulding which comprises at least one first structural portion formed from the fibrous reinforcement and the cured first resin material bonded to at least one second structural portion formed from the at least one layer of fibrous reinforcing material and the cured second resin material. | 06-10-2010 |
20100261000 | COMPOSITE LAMINATED ARTICLE AND MANUFACTURE THEREOF - Composite laminated article having: a first layer of a fibre-reinforced resin, a second layer of a closed cell foam of a thermoplastic material, and a third layer of a fibre-reinforced resin, the resin of the first and third layers respectively adhering a surface of the first and third layers to a respective surface of the second layer to form a sandwich construction of the first, second and third layers, wherein the closed cell foam comprises a plurality of expanded beads mutually welded together, each bead comprising a plurality of closed cells, wherein in each bead the closed cell foam has an average cell size of from 15 to 75 microns, at least 50% of the beads comprise first beads having a uniform cell size in which the maximum cell size is 100 microns and at most 50% of the beads comprise second beads having a non-uniform cell size in which the majority of cells have a maximum cell size of 100 microns and a minority of cells have a maximum cell size from more than 100 microns to up to 660 microns. | 10-14-2010 |
20100291370 | COMPOSITE LAMINATED ARTICLE AND MANUFACTURE THEREOF - Composite laminated article having: a first layer of a closed cell foam of a thermoplastic material, a second layer of a fibre-reinforced resin, the resin adhering a surface of the second layer to a surface of the first layer, wherein the closed cell foam has an average cell size of from 15 to 75 microns. | 11-18-2010 |
20110104478 | STRUCTURAL FOAM AND MANUFACTURE THEREOF - A method of manufacturing a foam body having an anisotropic cell structure, the method including the steps of: expanding a polymer at an elevated temperature to form an initial foam body; and cooling the initial foam body under a negative pressure. There is also provided a method of manufacturing a foam body having an anisotropic cell structure, the method including the steps of: (a) in a first expansion step, expanding a foamable polymer composition substantially isotropically to form an initial foam body having an isotropic cell structure; and (b) in a second expansion step, expanding the initial foam body anisotropically in a selected direction under a negative pressure which applies an expanding force in the selected direction to provide a final foam body having an anisotropic cell structure. Apparatus for the methods are also disclosed. | 05-05-2011 |
20110114252 | COMPOSITE MATERIALS - A prepreg for manufacturing a fibre-reinforced composite material, the prepreg comprising a layer of a layer of fibrous reinforcement fully impregnated by a matrix resin material, wherein at least the surface of the resin material has a viscosity and a tack at room temperature, and each prepreg has a stiffness at room temperature, such that when two of the prepregs are disposed as a vertical stack thereof at room temperature with adjacent resin material surfaces, the adjacent resin material surfaces are unadhered and form continuous air paths therebetween. | 05-19-2011 |
20110244213 | CORE FOR COMPOSITE LAMINATED ARTICLE AND MANUFACTURE THEREOF - Core for a composite laminated article, the core being a sheet having a sandwich structure including a pair of outer foam bodies and a central structural insert therebetween, the structural insert including portions that are inclined to the plane of the sheet and to the through-thickness direction of the sheet. | 10-06-2011 |
20120261060 | PREPREGS FOR MANUFACTURING COMPOSITE MATERIALS - A prepreg comprising a fibrous material contacting a polymerisable resin, at least 50 wt % of the polymerisable resin comprising at least one polymerisable monomer having at least two carbon-carbon unsaturated functional groups, the monomer being polymerisable by reaction of the unsaturated functional groups to form a cured resin, wherein the resin has a heat of polymerization of less than 230 KJ/kg to provide a maximum increase in temperature of the prepreg of 60° C. during polymerisation under adiabatic conditions. | 10-18-2012 |
20130012086 | REPAIR OF COMPOSITE MATERIALS - A prepreg comprising a fibrous reinforcement layer at least partially impregnated with a matrix resin having a first viscosity, a coating of a wet resin having a second viscosity on a first side of the fibrous reinforcement layer, the first viscosity being higher than the second viscosity, both the matrix resin and the wet resin being curable by ultraviolet radiation, a first removable flexible film which acts as a barrier to ultraviolet radiation on a second side of the fibrous reinforcement layer, and optionally a second removable protective flexible film covering the coating of wet resin. | 01-10-2013 |
20140023515 | FIBRE-REINFORCED COMPOSITE MOULDING AND MANUFACTURE THEREOF - Method of manufacturing a fibre-reinforced composite moulding, the method comrisinci the steps of: (a) disposing at least one layer of fibrous reinforcing material within a mould; (b) disDosing at least one pre-preg layer adjacent to the fibrous reinforcing material, the pre-preg layer comprising fibrous reinforcement at least partially impregnated with uncured first resin material, to form a laminar assembly of the at least one layer of fibrous reinforcing material and the at least one pre-preg layer within the mould; (c) applying a vacuum to the assembly; (d) infusing a flowable uncured second resin material, under the vacuum, into the at least one layer of fibrous reinforcing material: and (e) curing the first and second resin materials at least partially simultaneously to form the fibre-reinforced composite moulding which comprises at least one first structural portion formed from the fibrous reinforcement and the cured first resin material bonded to at least one second structural portion formed from the at least one layer of fibrous reinforcing material and the cured second resin material. | 01-23-2014 |