Improved core material

Details Improved core material Improved core material

B - Operations, Transporting

29

C

B29C 44/12 (2006.01) B29C 70/08 (2006.01) B29C 70/66 (2006.01) B32B 5/18 (2006.01) B32B 5/26 (2006.01)

Patent

CA 2500261

The present invention relates to a drapable core material suitable for use in closed mould systems, hand lay-up applications and/or spray-up applications, preferably having a compression-resistance of more than 30 % at 1 bar pressure, wherein core material is based on at least one fibrous web containing a foam-structure within the web, said foam-structure being formed of a plurality of members, which members are separated from each other by channels which channels are permeable to resin. The invention further relates to a laminate comprising such core material, a method for manufacturing the core material and a method for manufacturing such laminate.

La présente invention concerne un matériau noyau apte à être drapé, qui est destiné à des systèmes de moules fermés, à des applications de moulage par contact et/ou à des applications de pistolage, qui possède de préférence une résistance aux compressions supérieure à 30 % à une pression de 1 bar, le matériau noyau étant composé d'au moins une nappe fibreuse contenant une structure de mousse à l'intérieur de la nappe, ladite structure de mousse étant formée d'une pluralité d'éléments, lesquels éléments sont séparés les uns des autres par des canaux perméables à la résine. L'invention se rapporte également à un laminé comprenant ledit matériau noyau, à un procédé de fabrication du matériau noyau et à un procédé de fabrication du laminé.

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