Patent application number | Description | Published |
20100173143 | METHOD FOR MAKING COMPOSITE PARTS HAVING AT LEAST ONE CURVED AREA - The invention relates to a method for making a composite part including an assembly of superimposed webs of reinforcement threads imbedded at least partially in a polymer matrix, said part including at least one curved area and the method comprising steps of draping or stacking plies of a composite material, characterised in that, in at least one area adjacent to a curved area, at least one draping or stacking step is carried out with a ply of composite material, that comprises a web, or twisted thread web, including at least one twisted reinforcement thread in order to at least compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the surface of the web; the invention also relates to the composite materials thus obtained. | 07-08-2010 |
20110309543 | HEAD FOR THE APPLICATION OF REINFORCING THREADS ON A DEPOSITION SURFACE - Applicator head for reinforcement yarns ( | 12-22-2011 |
20120015135 | NOVEL INTERMEDIATE MATERIAL WITH CONSTANT WIDTH FOR THE DIRECT PROCESS PRODUCTION OF COMPOSITE COMPONENTS - The invention concerns a process for preparing a ribbon of reinforcement strands or filaments associated on each of its faces with a polymeric binder, said ribbon having a given width substantially constant over its entire length, in which the strands or filaments extend in a direction parallel to the length of the ribbon, wherein it comprises the following steps:
| 01-19-2012 |
20130108823 | NOVEL INTERMEDIATE REINFORCING MATERIAL CONSISTING OF AN ARRAY OF SPACED-APART YARNS/WEBS | 05-02-2013 |
20150367582 | METHOD FOR MAKING AN INTERMEDIATE REINFORCING MATERIAL CONSISTING OF AN ARRAY OF SPACED-APART YARNS/WEBS - The present invention relates especially to an intermediate material comprising, or even constituted exclusively by, an array of individualised ribbons, each ribbon being composed by a tape of unidirectional reinforcing fibres associated, by adhesion, on each of its faces with a veil of thermoplastic fibres, characterised in that the ribbons are disposed in successive layers, in such a way that the ribbons of two successive layers are superposed with or without crossing but without interlacement, the bond between a ribbon and the ribbon or ribbons with which it is superposed being ensured by adhesion, and in that in each layer the ribbons are disposed substantially parallel to each other over at least the major part of their length, while being independent and spaced from each other and in that the ribbons of at least two layers extend in two different directions. | 12-24-2015 |
Patent application number | Description | Published |
20140322511 | VEILED TAPE WITH IMPROVED RESISTANCE TO DELAMINATION - The present invention provides a method of preparing a tape with a given width, said tape being composed of an assembly of filaments extending in a direction substantially parallel to the length of the tape, and between which a powder of a polymeric material is distributed, each face of said tape being associated with a nonwoven of polymeric fibers, the method comprising: —a step consisting in depositing powder formed from a polymeric material on at least one of the faces of the tape, preferably on both faces; —a step consisting in heating in order to at least partially soften the deposited powder then of tightening the tape in order to adjust its width to the width desired and to cause at least a portion of the powder to penetrate into the thickness of the tape between the filaments, and of cooling the tape to fix its width and provide cohesiveness because of the powder; and —to tapes obtained using said method. | 10-30-2014 |
20150028514 | USE, IN THE MANUFACTURE OF A COMPOSITE COMPONENT, OF A PENETRATION OPERATION TO IMPROVE THE TRANSVERSE ELECTRIC CONDUCTIVITY OF THE COMPOSITE COMPONENT - The invention relates to the use, in the fabrication of a composite part formed from a stack of reinforcement materials of carbon fibres between which is sandwiched at least one layer of thermoplastic or thermosetting material or a mixture of thermoplastic and thermosetting materials, of an operation of spot application of transverse forces on at least two layers constituting the stack and positioned as neighbours in the stack, so as to successively traverse at least one reinforcement material and at least one layer of thermoplastic or thermosetting material or a mixture of thermoplastic and thermosetting materials placed in superposed position, to improve the transverse electrical conductivity of the composite part obtained. | 01-29-2015 |
20150290883 | METHOD OF APPLYING AN INTERMEDIATE MATERIAL MAKING IT POSSIBLE TO ENSURE THE COHESION THEREOF, METHOD OF FORMING A STACK INTENDED FOR THE MANUFACTURE OF COMPOSITE COMPONENTS AND INTERMEDIATE MATERIAL - The present invention relates to a method for continuously applying on a deposition surface of an intermediate material composed of a unidirectional layer of reinforcing fibers associated on at least one of its faces to a layer of thermoplastic and/or thermosetting material that does not represent more than 10% of the total weight of the intermediate material. | 10-15-2015 |